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This is the pinctrl big pull request for v3.8.

Browse source 
As can be seen from the diffstat the major changes
 are:
 
 - A big conversion of the AT91 pinctrl driver and
   the associated ACKed platform changes under
   arch/arm/max-at91 and its device trees. This
   has been coordinated with the AT91 maintainers
   to go in through the pinctrl tree.
 
 - A larger chunk of changes to the SPEAr drivers
   and the addition of the "plgpio" driver for the
   SPEAr as well.
 
 - The removal of the remnants of the Nomadik driver
   from the arch/arm tree and fusion of that into
   the Nomadik driver and platform data header files.
 
 - Some local movement in the Marvell MVEBU drivers,
   these now have their own subdirectory.
 
 - The addition of a chunk of code to gpiolib under
   drivers/gpio to register gpio-to-pin range mappings
   from the GPIO side of things. This has been
   requested by Grant Likely and is now implemented,
   it is particularly useful for device tree work.
 
 Then we have incremental updates all over the place,
 many of these are cleanups and fixes from Axel Lin
 who has done a great job of removing minor mistakes
 and compilation annoyances.
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Merge tag 'pinctrl-for-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl changes from Linus Walleij:
 "These are the first and major pinctrl changes for the v3.8 merge
  cycle.  Some of this is used as merge base for other trees so I better
  be early on the trigger.

  As can be seen from the diffstat the major changes are:

  - A big conversion of the AT91 pinctrl driver and the associated ACKed
    platform changes under arch/arm/max-at91 and its device trees.  This
    has been coordinated with the AT91 maintainers to go in through the
    pinctrl tree.

  - A larger chunk of changes to the SPEAr drivers and the addition of
    the "plgpio" driver for the SPEAr as well.

  - The removal of the remnants of the Nomadik driver from the arch/arm
    tree and fusion of that into the Nomadik driver and platform data
    header files.

  - Some local movement in the Marvell MVEBU drivers, these now have
    their own subdirectory.

  - The addition of a chunk of code to gpiolib under drivers/gpio to
    register gpio-to-pin range mappings from the GPIO side of things.
    This has been requested by Grant Likely and is now implemented, it
    is particularly useful for device tree work.

  Then we have incremental updates all over the place, many of these are
  cleanups and fixes from Axel Lin who has done a great job of removing
  minor mistakes and compilation annoyances."

* tag 'pinctrl-for-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (114 commits)
  ARM: mmp: select PINCTRL for ARCH_MMP
  pinctrl: Drop selecting PINCONF for MMP2, PXA168 and PXA910
  pinctrl: pinctrl-single: Fix error check condition
  pinctrl: SPEAr: Update error check for unsigned variables
  gpiolib: Fix use after free in gpiochip_add_pin_range
  gpiolib: rename pin range arguments
  pinctrl: single: support gpio request and free
  pinctrl: generic: add input schmitt disable parameter
  pinctrl/u300/coh901: stop spawning pinctrl from GPIO
  pinctrl/u300/coh901: let the gpio_chip register the range
  pinctrl: add function to retrieve range from pin
  gpiolib: return any error code from range creation
  pinctrl: make range registration defer properly
  gpiolib: rename find_pinctrl_*
  gpiolib: let gpiochip_add_pin_range() specify offset
  ARM: at91: pm9g45: add mmc support
  ARM: at91: Animeo IP: add mmc support
  ARM: at91: dt: add mmc pinctrl for Atmel reference boards
  ARM: at91: dt: at91sam9: add mmc pinctrl support
  ARM: at91/dts: add nodes for atmel hsmci controllers for atmel boards
  ...
This commit is contained in:
Linus Torvalds 2012-12-11 11:21:33 -08:00
commit 505cbedab9
126 changed files with 7065 additions and 1058 deletions
Download patch file Download diff file Expand all files Collapse all files

50
drivers/pinctrl/Kconfig
View file

@ -26,6 +26,15 @@ config DEBUG_PINCTRL
help
Say Y here to add some extra checks and diagnostics to PINCTRL calls.
config PINCTRL_AT91
bool "AT91 pinctrl driver"
depends on OF
depends on ARCH_AT91
select PINMUX
select PINCONF
help
Say Y here to enable the at91 pinctrl driver
config PINCTRL_BCM2835
bool
select PINMUX
@ -87,21 +96,18 @@ config PINCTRL_MMP2
bool "MMP2 pin controller driver"
depends on ARCH_MMP
select PINCTRL_PXA3xx
select PINCONF
config PINCTRL_MXS
bool
select PINMUX
select PINCONF
config PINCTRL_IMX23
bool
select PINMUX
select PINCONF
select PINCTRL_MXS
config PINCTRL_IMX28
bool
select PINMUX
select PINCONF
select PINCTRL_MXS
config PINCTRL_NOMADIK
@ -126,13 +132,11 @@ config PINCTRL_PXA168
bool "PXA168 pin controller driver"
depends on ARCH_MMP
select PINCTRL_PXA3xx
select PINCONF
config PINCTRL_PXA910
bool "PXA910 pin controller driver"
depends on ARCH_MMP
select PINCTRL_PXA3xx
select PINCONF
config PINCTRL_SINGLE
tristate "One-register-per-pin type device tree based pinctrl driver"
@ -143,23 +147,21 @@ config PINCTRL_SINGLE
This selects the device tree based generic pinctrl driver.
config PINCTRL_SIRF
bool "CSR SiRFprimaII pin controller driver"
depends on ARCH_PRIMA2
bool "CSR SiRFprimaII/SiRFmarco pin controller driver"
depends on ARCH_SIRF
select PINMUX
config PINCTRL_TEGRA
bool
select PINMUX
select PINCONF
config PINCTRL_TEGRA20
bool
select PINMUX
select PINCONF
select PINCTRL_TEGRA
config PINCTRL_TEGRA30
bool
select PINMUX
select PINCONF
select PINCTRL_TEGRA
config PINCTRL_U300
@ -188,27 +190,7 @@ config PINCTRL_EXYNOS4
depends on OF && GPIOLIB
select PINCTRL_SAMSUNG
config PINCTRL_MVEBU
bool
depends on ARCH_MVEBU
select PINMUX
select PINCONF
config PINCTRL_DOVE
bool
select PINCTRL_MVEBU
config PINCTRL_KIRKWOOD
bool
select PINCTRL_MVEBU
config PINCTRL_ARMADA_370
bool
select PINCTRL_MVEBU
config PINCTRL_ARMADA_XP
bool
select PINCTRL_MVEBU
source "drivers/pinctrl/mvebu/Kconfig"
source "drivers/pinctrl/spear/Kconfig"

7
drivers/pinctrl/Makefile
View file

@ -9,6 +9,7 @@ ifeq ($(CONFIG_OF),y)
obj-$(CONFIG_PINCTRL) += devicetree.o
endif
obj-$(CONFIG_GENERIC_PINCONF) += pinconf-generic.o
obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o
obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o
obj-$(CONFIG_PINCTRL_IMX) += pinctrl-imx.o
obj-$(CONFIG_PINCTRL_IMX35) += pinctrl-imx35.o
@ -36,12 +37,8 @@ obj-$(CONFIG_PINCTRL_U300) += pinctrl-u300.o
obj-$(CONFIG_PINCTRL_COH901) += pinctrl-coh901.o
obj-$(CONFIG_PINCTRL_SAMSUNG) += pinctrl-samsung.o
obj-$(CONFIG_PINCTRL_EXYNOS4) += pinctrl-exynos.o
obj-$(CONFIG_PINCTRL_MVEBU) += pinctrl-mvebu.o
obj-$(CONFIG_PINCTRL_DOVE) += pinctrl-dove.o
obj-$(CONFIG_PINCTRL_KIRKWOOD) += pinctrl-kirkwood.o
obj-$(CONFIG_PINCTRL_ARMADA_370) += pinctrl-armada-370.o
obj-$(CONFIG_PINCTRL_ARMADA_XP) += pinctrl-armada-xp.o
obj-$(CONFIG_PINCTRL_XWAY) += pinctrl-xway.o
obj-$(CONFIG_PINCTRL_LANTIQ) += pinctrl-lantiq.o
obj-$(CONFIG_PLAT_ORION) += mvebu/
obj-$(CONFIG_PLAT_SPEAR) += spear/

58
drivers/pinctrl/core.c
View file

@ -345,6 +345,62 @@ void pinctrl_add_gpio_ranges(struct pinctrl_dev *pctldev,
}
EXPORT_SYMBOL_GPL(pinctrl_add_gpio_ranges);
struct pinctrl_dev *pinctrl_find_and_add_gpio_range(const char *devname,
struct pinctrl_gpio_range *range)
{
struct pinctrl_dev *pctldev = get_pinctrl_dev_from_devname(devname);
/*
* If we can't find this device, let's assume that is because
* it has not probed yet, so the driver trying to register this
* range need to defer probing.
*/
if (!pctldev)
return ERR_PTR(-EPROBE_DEFER);
pinctrl_add_gpio_range(pctldev, range);
return pctldev;
}
EXPORT_SYMBOL_GPL(pinctrl_find_and_add_gpio_range);
/**
* pinctrl_find_gpio_range_from_pin() - locate the GPIO range for a pin
* @pctldev: the pin controller device to look in
* @pin: a controller-local number to find the range for
*/
struct pinctrl_gpio_range *
pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev,
unsigned int pin)
{
struct pinctrl_gpio_range *range = NULL;
/* Loop over the ranges */
list_for_each_entry(range, &pctldev->gpio_ranges, node) {
/* Check if we're in the valid range */
if (pin >= range->pin_base &&
pin < range->pin_base + range->npins) {
return range;
}
}
return NULL;
}
EXPORT_SYMBOL_GPL(pinctrl_find_gpio_range_from_pin);
/**
* pinctrl_remove_gpio_range() - remove a range of GPIOs fro a pin controller
* @pctldev: pin controller device to remove the range from
* @range: the GPIO range to remove
*/
void pinctrl_remove_gpio_range(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range)
{
mutex_lock(&pinctrl_mutex);
list_del(&range->node);
mutex_unlock(&pinctrl_mutex);
}
EXPORT_SYMBOL_GPL(pinctrl_remove_gpio_range);
/**
* pinctrl_get_group_selector() - returns the group selector for a group
* @pctldev: the pin controller handling the group
@ -563,6 +619,8 @@ static int add_setting(struct pinctrl *p, struct pinctrl_map const *map)
return -EPROBE_DEFER;
}
setting->dev_name = map->dev_name;
switch (map->type) {
case PIN_MAP_TYPE_MUX_GROUP:
ret = pinmux_map_to_setting(map, setting);

2
drivers/pinctrl/core.h
View file

@ -105,12 +105,14 @@ struct pinctrl_setting_configs {
* @type: the type of setting
* @pctldev: pin control device handling to be programmed. Not used for
* PIN_MAP_TYPE_DUMMY_STATE.
* @dev_name: the name of the device using this state
* @data: Data specific to the setting type
*/
struct pinctrl_setting {
struct list_head node;
enum pinctrl_map_type type;
struct pinctrl_dev *pctldev;
const char *dev_name;
union {
struct pinctrl_setting_mux mux;
struct pinctrl_setting_configs configs;

11
drivers/pinctrl/devicetree.c
View file

@ -106,6 +106,17 @@ static struct pinctrl_dev *find_pinctrl_by_of_node(struct device_node *np)
return NULL;
}
struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
{
struct pinctrl_dev *pctldev;
pctldev = find_pinctrl_by_of_node(np);
if (!pctldev)
return NULL;
return pctldev;
}
static int dt_to_map_one_config(struct pinctrl *p, const char *statename,
struct device_node *np_config)
{

24
drivers/pinctrl/mvebu/Kconfig Normal file
View file

@ -0,0 +1,24 @@
if PLAT_ORION
config PINCTRL_MVEBU
bool
select PINMUX
select PINCONF
config PINCTRL_DOVE
bool
select PINCTRL_MVEBU
config PINCTRL_KIRKWOOD
bool
select PINCTRL_MVEBU
config PINCTRL_ARMADA_370
bool
select PINCTRL_MVEBU
config PINCTRL_ARMADA_XP
bool
select PINCTRL_MVEBU
endif

5
drivers/pinctrl/mvebu/Makefile Normal file
View file

@ -0,0 +1,5 @@
obj-$(CONFIG_PINCTRL_MVEBU) += pinctrl-mvebu.o
obj-$(CONFIG_PINCTRL_DOVE) += pinctrl-dove.o
obj-$(CONFIG_PINCTRL_KIRKWOOD) += pinctrl-kirkwood.o
obj-$(CONFIG_PINCTRL_ARMADA_370) += pinctrl-armada-370.o
obj-$(CONFIG_PINCTRL_ARMADA_XP) += pinctrl-armada-xp.o

0
drivers/pinctrl/pinctrl-armada-370.c → drivers/pinctrl/mvebu/pinctrl-armada-370.c
View file

0
drivers/pinctrl/pinctrl-armada-xp.c → drivers/pinctrl/mvebu/pinctrl-armada-xp.c
View file

0
drivers/pinctrl/pinctrl-dove.c → drivers/pinctrl/mvebu/pinctrl-dove.c
View file

0
drivers/pinctrl/pinctrl-kirkwood.c → drivers/pinctrl/mvebu/pinctrl-kirkwood.c
View file

1
drivers/pinctrl/pinctrl-mvebu.c → drivers/pinctrl/mvebu/pinctrl-mvebu.c
View file

@ -24,7 +24,6 @@
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include "core.h"
#include "pinctrl-mvebu.h"
#define MPPS_PER_REG 8

0
drivers/pinctrl/pinctrl-mvebu.h → drivers/pinctrl/mvebu/pinctrl-mvebu.h
View file

1
drivers/pinctrl/pinconf-generic.c
View file

@ -41,6 +41,7 @@ struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_DRIVE_PUSH_PULL, "output drive push pull", NULL),
PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_DRAIN, "output drive open drain", NULL),
PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_SOURCE, "output drive open source", NULL),
PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT_DISABLE, "input schmitt disabled", NULL),
PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT, "input schmitt trigger", NULL),
PCONFDUMP(PIN_CONFIG_INPUT_DEBOUNCE, "input debounce", "time units"),
PCONFDUMP(PIN_CONFIG_POWER_SOURCE, "pin power source", "selector"),

1634
drivers/pinctrl/pinctrl-at91.c Normal file
View file

File diff suppressed because it is too large Load diff

2
drivers/pinctrl/pinctrl-bcm2835.c
View file

@ -916,7 +916,7 @@ static int bcm2835_pinconf_set(struct pinctrl_dev *pctldev,
return 0;
}
struct pinconf_ops bcm2835_pinconf_ops = {
static struct pinconf_ops bcm2835_pinconf_ops = {
.pin_config_get = bcm2835_pinconf_get,
.pin_config_set = bcm2835_pinconf_set,
};

175
drivers/pinctrl/pinctrl-coh901.c
View file

@ -13,6 +13,7 @@
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/irqdomain.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/platform_device.h>
@ -64,10 +65,8 @@ struct u300_gpio {
struct gpio_chip chip;
struct list_head port_list;
struct clk *clk;
struct resource *memres;
void __iomem *base;
struct device *dev;
int irq_base;
u32 stride;
/* Register offsets */
u32 pcr;
@ -83,6 +82,7 @@ struct u300_gpio_port {
struct list_head node;
struct u300_gpio *gpio;
char name[8];
struct irq_domain *domain;
int irq;
int number;
u8 toggle_edge_mode;
@ -314,10 +314,30 @@ static int u300_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
static int u300_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
struct u300_gpio *gpio = to_u300_gpio(chip);
int retirq = gpio->irq_base + offset;
int portno = offset >> 3;
struct u300_gpio_port *port = NULL;
struct list_head *p;
int retirq;
dev_dbg(gpio->dev, "request IRQ for GPIO %d, return %d\n", offset,
retirq);
list_for_each(p, &gpio->port_list) {
port = list_entry(p, struct u300_gpio_port, node);
if (port->number == portno)
break;
}
if (port == NULL) {
dev_err(gpio->dev, "could not locate port for GPIO %d IRQ\n",
offset);
return -EINVAL;
}
/*
* The local hwirqs on the port are the lower three bits, there
* are exactly 8 IRQs per port since they are 8-bit
*/
retirq = irq_find_mapping(port->domain, (offset & 0x7));
dev_dbg(gpio->dev, "request IRQ for GPIO %d, return %d from port %d\n",
offset, retirq, port->number);
return retirq;
}
@ -467,7 +487,7 @@ static int u300_gpio_irq_type(struct irq_data *d, unsigned trigger)
{
struct u300_gpio_port *port = irq_data_get_irq_chip_data(d);
struct u300_gpio *gpio = port->gpio;
int offset = d->irq - gpio->irq_base;
int offset = (port->number << 3) + d->hwirq;
u32 val;
if ((trigger & IRQF_TRIGGER_RISING) &&
@ -503,10 +523,12 @@ static void u300_gpio_irq_enable(struct irq_data *d)
{
struct u300_gpio_port *port = irq_data_get_irq_chip_data(d);
struct u300_gpio *gpio = port->gpio;
int offset = d->irq - gpio->irq_base;
int offset = (port->number << 3) + d->hwirq;
u32 val;
unsigned long flags;
dev_dbg(gpio->dev, "enable IRQ for hwirq %lu on port %s, offset %d\n",
d->hwirq, port->name, offset);
local_irq_save(flags);
val = readl(U300_PIN_REG(offset, ien));
writel(val | U300_PIN_BIT(offset), U300_PIN_REG(offset, ien));
@ -517,7 +539,7 @@ static void u300_gpio_irq_disable(struct irq_data *d)
{
struct u300_gpio_port *port = irq_data_get_irq_chip_data(d);
struct u300_gpio *gpio = port->gpio;
int offset = d->irq - gpio->irq_base;
int offset = (port->number << 3) + d->hwirq;
u32 val;
unsigned long flags;
@ -555,8 +577,7 @@ static void u300_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
int irqoffset;
for_each_set_bit(irqoffset, &val, U300_GPIO_PINS_PER_PORT) {
int pin_irq = gpio->irq_base + (port->number << 3)
+ irqoffset;
int pin_irq = irq_find_mapping(port->domain, irqoffset);
int offset = pinoffset + irqoffset;
dev_dbg(gpio->dev, "GPIO IRQ %d on pin %d\n",
@ -631,64 +652,86 @@ static inline void u300_gpio_free_ports(struct u300_gpio *gpio)
list_for_each_safe(p, n, &gpio->port_list) {
port = list_entry(p, struct u300_gpio_port, node);
list_del(&port->node);
if (port->domain)
irq_domain_remove(port->domain);
kfree(port);
}
}
/*
* Here we map a GPIO in the local gpio_chip pin space to a pin in
* the local pinctrl pin space. The pin controller used is
* pinctrl-u300.
*/
struct coh901_pinpair {
unsigned int offset;
unsigned int pin_base;
};
#define COH901_PINRANGE(a, b) { .offset = a, .pin_base = b }
static struct coh901_pinpair coh901_pintable[] = {
COH901_PINRANGE(10, 426),
COH901_PINRANGE(11, 180),
COH901_PINRANGE(12, 165), /* MS/MMC card insertion */
COH901_PINRANGE(13, 179),
COH901_PINRANGE(14, 178),
COH901_PINRANGE(16, 194),
COH901_PINRANGE(17, 193),
COH901_PINRANGE(18, 192),
COH901_PINRANGE(19, 191),
COH901_PINRANGE(20, 186),
COH901_PINRANGE(21, 185),
COH901_PINRANGE(22, 184),
COH901_PINRANGE(23, 183),
COH901_PINRANGE(24, 182),
COH901_PINRANGE(25, 181),
};
static int __init u300_gpio_probe(struct platform_device *pdev)
{
struct u300_gpio_platform *plat = dev_get_platdata(&pdev->dev);
struct u300_gpio *gpio;
struct resource *memres;
int err = 0;
int portno;
u32 val;
u32 ifr;
int i;
gpio = kzalloc(sizeof(struct u300_gpio), GFP_KERNEL);
if (gpio == NULL) {
dev_err(&pdev->dev, "failed to allocate memory\n");
gpio = devm_kzalloc(&pdev->dev, sizeof(struct u300_gpio), GFP_KERNEL);
if (gpio == NULL)
return -ENOMEM;
}
gpio->chip = u300_gpio_chip;
gpio->chip.ngpio = plat->ports * U300_GPIO_PINS_PER_PORT;
gpio->irq_base = plat->gpio_irq_base;
gpio->chip.dev = &pdev->dev;
gpio->chip.base = plat->gpio_base;
gpio->dev = &pdev->dev;
/* Get GPIO clock */
gpio->clk = clk_get(gpio->dev, NULL);
memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!memres) {
dev_err(gpio->dev, "could not get GPIO memory resource\n");
return -ENODEV;
}
gpio->base = devm_request_and_ioremap(&pdev->dev, memres);
if (!gpio->base) {
dev_err(gpio->dev, "could not get remap memory\n");
return -ENOMEM;
}
gpio->clk = devm_clk_get(gpio->dev, NULL);
if (IS_ERR(gpio->clk)) {
err = PTR_ERR(gpio->clk);
dev_err(gpio->dev, "could not get GPIO clock\n");
goto err_no_clk;
return err;
}
err = clk_prepare_enable(gpio->clk);
if (err) {
dev_err(gpio->dev, "could not enable GPIO clock\n");
goto err_no_clk_enable;
}
gpio->memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!gpio->memres) {
dev_err(gpio->dev, "could not get GPIO memory resource\n");
err = -ENODEV;
goto err_no_resource;
}
if (!request_mem_region(gpio->memres->start,
resource_size(gpio->memres),
"GPIO Controller")) {
err = -ENODEV;
goto err_no_ioregion;
}
gpio->base = ioremap(gpio->memres->start, resource_size(gpio->memres));
if (!gpio->base) {
err = -ENOMEM;
goto err_no_ioremap;
return err;
}
dev_info(gpio->dev,
@ -732,18 +775,28 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
port->irq = platform_get_irq_byname(pdev,
port->name);
dev_dbg(gpio->dev, "register IRQ %d for %s\n", port->irq,
dev_dbg(gpio->dev, "register IRQ %d for port %s\n", port->irq,
port->name);
port->domain = irq_domain_add_linear(pdev->dev.of_node,
U300_GPIO_PINS_PER_PORT,
&irq_domain_simple_ops,
port);
if (!port->domain) {
err = -ENOMEM;
goto err_no_domain;
}
irq_set_chained_handler(port->irq, u300_gpio_irq_handler);
irq_set_handler_data(port->irq, port);
/* For each GPIO pin set the unique IRQ handler */
for (i = 0; i < U300_GPIO_PINS_PER_PORT; i++) {
int irqno = gpio->irq_base + (portno << 3) + i;
int irqno = irq_create_mapping(port->domain, i);
dev_dbg(gpio->dev, "handler for IRQ %d on %s\n",
irqno, port->name);
dev_dbg(gpio->dev, "GPIO%d on port %s gets IRQ %d\n",
gpio->chip.base + (port->number << 3) + i,
port->name, irqno);
irq_set_chip_and_handler(irqno, &u300_gpio_irqchip,
handle_simple_irq);
set_irq_flags(irqno, IRQF_VALID);
@ -763,32 +816,31 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
goto err_no_chip;
}
/* Spawn pin controller device as child of the GPIO, pass gpio chip */
plat->pinctrl_device->dev.platform_data = &gpio->chip;
err = platform_device_register(plat->pinctrl_device);
if (err)
goto err_no_pinctrl;
/*
* Add pinctrl pin ranges, the pin controller must be registered
* at this point
*/
for (i = 0; i < ARRAY_SIZE(coh901_pintable); i++) {
struct coh901_pinpair *p = &coh901_pintable[i];
err = gpiochip_add_pin_range(&gpio->chip, "pinctrl-u300",
p->offset, p->pin_base, 1);
if (err)
goto err_no_range;
}
platform_set_drvdata(pdev, gpio);
return 0;
err_no_pinctrl:
err_no_range:
err = gpiochip_remove(&gpio->chip);
err_no_chip:
err_no_domain:
err_no_port:
u300_gpio_free_ports(gpio);
iounmap(gpio->base);
err_no_ioremap:
release_mem_region(gpio->memres->start, resource_size(gpio->memres));
err_no_ioregion:
err_no_resource:
clk_disable_unprepare(gpio->clk);
err_no_clk_enable:
clk_put(gpio->clk);
err_no_clk:
kfree(gpio);
dev_info(&pdev->dev, "module ERROR:%d\n", err);
dev_err(&pdev->dev, "module ERROR:%d\n", err);
return err;
}
@ -806,13 +858,8 @@ static int __exit u300_gpio_remove(struct platform_device *pdev)
return err;
}
u300_gpio_free_ports(gpio);
iounmap(gpio->base);
release_mem_region(gpio->memres->start,
resource_size(gpio->memres));
clk_disable_unprepare(gpio->clk);
clk_put(gpio->clk);
platform_set_drvdata(pdev, NULL);
kfree(gpio);
return 0;
}

1
drivers/pinctrl/pinctrl-exynos.c
View file

@ -36,6 +36,7 @@
/* list of external wakeup controllers supported */
static const struct of_device_id exynos_wkup_irq_ids[] = {
{ .compatible = "samsung,exynos4210-wakeup-eint", },
{ }
};
static void exynos_gpio_irq_unmask(struct irq_data *irqd)

2
drivers/pinctrl/pinctrl-falcon.c
View file

@ -322,7 +322,7 @@ static void falcon_pinconf_group_dbg_show(struct pinctrl_dev *pctrldev,
{
}
struct pinconf_ops falcon_pinconf_ops = {
static struct pinconf_ops falcon_pinconf_ops = {
.pin_config_get = falcon_pinconf_get,
.pin_config_set = falcon_pinconf_set,
.pin_config_group_get = falcon_pinconf_group_get,

4
drivers/pinctrl/pinctrl-imx.c
View file

@ -71,7 +71,7 @@ static const struct imx_pin_reg *imx_find_pin_reg(
break;
}
if (!pin_reg) {
if (i == info->npin_regs) {
dev_err(info->dev, "Pin(%s): unable to find pin reg map\n",
info->pins[pin].name);
return NULL;
@ -397,7 +397,7 @@ static void imx_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
}
}
struct pinconf_ops imx_pinconf_ops = {
static struct pinconf_ops imx_pinconf_ops = {
.pin_config_get = imx_pinconf_get,
.pin_config_set = imx_pinconf_set,
.pin_config_dbg_show = imx_pinconf_dbg_show,

23
drivers/pinctrl/pinctrl-lantiq.c
View file

@ -46,8 +46,8 @@ static int ltq_get_group_pins(struct pinctrl_dev *pctrldev,
return 0;
}
void ltq_pinctrl_dt_free_map(struct pinctrl_dev *pctldev,
struct pinctrl_map *map, unsigned num_maps)
static void ltq_pinctrl_dt_free_map(struct pinctrl_dev *pctldev,
struct pinctrl_map *map, unsigned num_maps)
{
int i;
@ -128,10 +128,10 @@ static int ltq_pinctrl_dt_subnode_size(struct device_node *np)
return ret;
}
int ltq_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
struct device_node *np_config,
struct pinctrl_map **map,
unsigned *num_maps)
static int ltq_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
struct device_node *np_config,
struct pinctrl_map **map,
unsigned *num_maps)
{
struct pinctrl_map *tmp;
struct device_node *np;
@ -275,16 +275,6 @@ static int ltq_pmx_enable(struct pinctrl_dev *pctrldev,
return 0;
}
static void ltq_pmx_disable(struct pinctrl_dev *pctrldev,
unsigned func,
unsigned group)
{
/*
* Nothing to do here. However, pinconf_check_ops() requires this
* callback to be defined.
*/
}
static int ltq_pmx_gpio_request_enable(struct pinctrl_dev *pctrldev,
struct pinctrl_gpio_range *range,
unsigned pin)
@ -312,7 +302,6 @@ static struct pinmux_ops ltq_pmx_ops = {
.get_function_name = ltq_pmx_func_name,
.get_function_groups = ltq_pmx_get_groups,
.enable = ltq_pmx_enable,
.disable = ltq_pmx_disable,
.gpio_request_enable = ltq_pmx_gpio_request_enable,
};

2
drivers/pinctrl/pinctrl-mxs.c
View file

@ -319,7 +319,7 @@ static void mxs_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
seq_printf(s, "0x%lx", config);
}
struct pinconf_ops mxs_pinconf_ops = {
static struct pinconf_ops mxs_pinconf_ops = {
.pin_config_get = mxs_pinconf_get,
.pin_config_set = mxs_pinconf_set,
.pin_config_group_get = mxs_pinconf_group_get,

125
drivers/pinctrl/pinctrl-nomadik-db8500.c
View file

@ -475,8 +475,10 @@ static const unsigned hsit_a_1_pins[] = { DB8500_PIN_AJ9, DB8500_PIN_AH9,
DB8500_PIN_AG9, DB8500_PIN_AG8, DB8500_PIN_AF8 };
static const unsigned hsit_a_2_pins[] = { DB8500_PIN_AJ9, DB8500_PIN_AH9,
DB8500_PIN_AG9, DB8500_PIN_AG8 };
static const unsigned clkout_a_1_pins[] = { DB8500_PIN_AH7, DB8500_PIN_AJ6 };
static const unsigned clkout_a_2_pins[] = { DB8500_PIN_AG7, DB8500_PIN_AF7 };
static const unsigned clkout1_a_1_pins[] = { DB8500_PIN_AH7 };
static const unsigned clkout1_a_2_pins[] = { DB8500_PIN_AG7 };
static const unsigned clkout2_a_1_pins[] = { DB8500_PIN_AJ6 };
static const unsigned clkout2_a_2_pins[] = { DB8500_PIN_AF7 };
static const unsigned usb_a_1_pins[] = { DB8500_PIN_AF28, DB8500_PIN_AE29,
DB8500_PIN_AD29, DB8500_PIN_AC29, DB8500_PIN_AD28, DB8500_PIN_AD26,
DB8500_PIN_AE26, DB8500_PIN_AG29, DB8500_PIN_AE27, DB8500_PIN_AD27,
@ -592,7 +594,8 @@ static const unsigned stmmod_c_1_pins[] = { DB8500_PIN_C20, DB8500_PIN_B21,
DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24 };
static const unsigned usbsim_c_1_pins[] = { DB8500_PIN_D22 };
static const unsigned mc4rstn_c_1_pins[] = { DB8500_PIN_AF25 };
static const unsigned clkout_c_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AH12 };
static const unsigned clkout1_c_1_pins[] = { DB8500_PIN_AH13 };
static const unsigned clkout2_c_1_pins[] = { DB8500_PIN_AH12 };
static const unsigned i2c3_c_1_pins[] = { DB8500_PIN_AG12, DB8500_PIN_AH11 };
static const unsigned spi0_c_1_pins[] = { DB8500_PIN_AH10, DB8500_PIN_AH9,
DB8500_PIN_AG9, DB8500_PIN_AG8 };
@ -600,14 +603,66 @@ static const unsigned usbsim_c_2_pins[] = { DB8500_PIN_AF8 };
static const unsigned i2c3_c_2_pins[] = { DB8500_PIN_AG7, DB8500_PIN_AF7 };
/* Other C1 column */
static const unsigned u2rx_oc1_1_pins[] = { DB8500_PIN_AB2 };
static const unsigned stmape_oc1_1_pins[] = { DB8500_PIN_AA4, DB8500_PIN_Y4,
DB8500_PIN_Y2, DB8500_PIN_AA2, DB8500_PIN_AA1 };
static const unsigned remap0_oc1_1_pins[] = { DB8500_PIN_E1 };
static const unsigned remap1_oc1_1_pins[] = { DB8500_PIN_E2 };
static const unsigned ptma9_oc1_1_pins[] = { DB8500_PIN_G5, DB8500_PIN_G4,
DB8500_PIN_H4, DB8500_PIN_H3, DB8500_PIN_J3, DB8500_PIN_H2,
DB8500_PIN_J2, DB8500_PIN_H1 };
static const unsigned kp_oc1_1_pins[] = { DB8500_PIN_C6, DB8500_PIN_B3,
DB8500_PIN_C4, DB8500_PIN_E6, DB8500_PIN_A3, DB8500_PIN_B6,
DB8500_PIN_D6, DB8500_PIN_B7 };
static const unsigned rf_oc1_1_pins[] = { DB8500_PIN_D8, DB8500_PIN_D9 };
static const unsigned hxclk_oc1_1_pins[] = { DB8500_PIN_D16 };
static const unsigned uartmodrx_oc1_1_pins[] = { DB8500_PIN_B17 };
static const unsigned uartmodtx_oc1_1_pins[] = { DB8500_PIN_C16 };
static const unsigned stmmod_oc1_1_pins[] = { DB8500_PIN_C19, DB8500_PIN_C17,
DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19 };
static const unsigned hxgpio_oc1_1_pins[] = { DB8500_PIN_D21, DB8500_PIN_D20,
DB8500_PIN_C20, DB8500_PIN_B21, DB8500_PIN_C21, DB8500_PIN_A22,
DB8500_PIN_B24, DB8500_PIN_C22 };
static const unsigned rf_oc1_2_pins[] = { DB8500_PIN_C23, DB8500_PIN_D23 };
static const unsigned spi2_oc1_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12,
DB8500_PIN_AH12, DB8500_PIN_AH11 };
static const unsigned spi2_oc1_2_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AH12,
DB8500_PIN_AH11 };
/* Other C2 column */
static const unsigned sbag_oc2_1_pins[] = { DB8500_PIN_AA4, DB8500_PIN_AB2,
DB8500_PIN_Y4, DB8500_PIN_Y2, DB8500_PIN_AA2, DB8500_PIN_AA1 };
static const unsigned etmr4_oc2_1_pins[] = { DB8500_PIN_G5, DB8500_PIN_G4,
DB8500_PIN_H4, DB8500_PIN_H3, DB8500_PIN_J3, DB8500_PIN_H2,
DB8500_PIN_J2, DB8500_PIN_H1 };
static const unsigned ptma9_oc2_1_pins[] = { DB8500_PIN_D17, DB8500_PIN_D16,
DB8500_PIN_B17, DB8500_PIN_C16, DB8500_PIN_C19, DB8500_PIN_C17,
DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19, DB8500_PIN_B20,
DB8500_PIN_D21, DB8500_PIN_D20, DB8500_PIN_C20, DB8500_PIN_B21,
DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24, DB8500_PIN_C22 };
/* Other C3 column */
static const unsigned stmmod_oc3_1_pins[] = { DB8500_PIN_AB2, DB8500_PIN_W2,
DB8500_PIN_W3, DB8500_PIN_V3, DB8500_PIN_V2 };
static const unsigned stmmod_oc3_2_pins[] = { DB8500_PIN_G5, DB8500_PIN_G4,
DB8500_PIN_H4, DB8500_PIN_H3, DB8500_PIN_J3 };
static const unsigned uartmodrx_oc3_1_pins[] = { DB8500_PIN_H2 };
static const unsigned uartmodtx_oc3_1_pins[] = { DB8500_PIN_J2 };
static const unsigned etmr4_oc3_1_pins[] = { DB8500_PIN_D17, DB8500_PIN_D16,
DB8500_PIN_B17, DB8500_PIN_C16, DB8500_PIN_C19, DB8500_PIN_C17,
DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19, DB8500_PIN_B20,
DB8500_PIN_D21, DB8500_PIN_D20, DB8500_PIN_C20, DB8500_PIN_B21,
DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24, DB8500_PIN_C22 };
/* Other C4 column */
static const unsigned sbag_oc4_1_pins[] = { DB8500_PIN_G5, DB8500_PIN_G4,
DB8500_PIN_H4, DB8500_PIN_H3, DB8500_PIN_J3, DB8500_PIN_H1 };
static const unsigned hwobs_oc4_1_pins[] = { DB8500_PIN_D17, DB8500_PIN_D16,
DB8500_PIN_B17, DB8500_PIN_C16, DB8500_PIN_C19, DB8500_PIN_C17,
DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19, DB8500_PIN_B20,
DB8500_PIN_D21, DB8500_PIN_D20, DB8500_PIN_C20, DB8500_PIN_B21,
DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24, DB8500_PIN_C22 };
#define DB8500_PIN_GROUP(a,b) { .name = #a, .pins = a##_pins, \
.npins = ARRAY_SIZE(a##_pins), .altsetting = b }
@ -639,6 +694,7 @@ static const struct nmk_pingroup nmk_db8500_groups[] = {
DB8500_PIN_GROUP(i2c0_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(ipgpio0_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(ipgpio1_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(kp_a_2, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(msp2sck_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(msp2_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(mc4_a_1, NMK_GPIO_ALT_A),
@ -647,8 +703,10 @@ static const struct nmk_pingroup nmk_db8500_groups[] = {
DB8500_PIN_GROUP(hsir_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(hsit_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(hsit_a_2, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(clkout_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(clkout_a_2, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(clkout1_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(clkout1_a_2, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(clkout2_a_1, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(clkout2_a_2, NMK_GPIO_ALT_A),
DB8500_PIN_GROUP(usb_a_1, NMK_GPIO_ALT_A),
/* Altfunction B column */
DB8500_PIN_GROUP(trig_b_1, NMK_GPIO_ALT_B),
@ -720,15 +778,41 @@ static const struct nmk_pingroup nmk_db8500_groups[] = {
DB8500_PIN_GROUP(stmmod_c_1, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(usbsim_c_1, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(mc4rstn_c_1, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(clkout_c_1, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(clkout1_c_1, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(clkout2_c_1, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(i2c3_c_1, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(spi0_c_1, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(usbsim_c_2, NMK_GPIO_ALT_C),
DB8500_PIN_GROUP(i2c3_c_2, NMK_GPIO_ALT_C),
/* Other alt C1 column */
DB8500_PIN_GROUP(u2rx_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(stmape_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(remap0_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(remap1_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(ptma9_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(kp_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(rf_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(hxclk_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(uartmodrx_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(uartmodtx_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(stmmod_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(hxgpio_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(rf_oc1_2, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(spi2_oc1_1, NMK_GPIO_ALT_C1),
DB8500_PIN_GROUP(spi2_oc1_2, NMK_GPIO_ALT_C1),
/* Other alt C2 column */
DB8500_PIN_GROUP(sbag_oc2_1, NMK_GPIO_ALT_C2),
DB8500_PIN_GROUP(etmr4_oc2_1, NMK_GPIO_ALT_C2),
DB8500_PIN_GROUP(ptma9_oc2_1, NMK_GPIO_ALT_C2),
/* Other alt C3 column */
DB8500_PIN_GROUP(stmmod_oc3_1, NMK_GPIO_ALT_C3),
DB8500_PIN_GROUP(stmmod_oc3_2, NMK_GPIO_ALT_C3),
DB8500_PIN_GROUP(uartmodrx_oc3_1, NMK_GPIO_ALT_C3),
DB8500_PIN_GROUP(uartmodtx_oc3_1, NMK_GPIO_ALT_C3),
DB8500_PIN_GROUP(etmr4_oc3_1, NMK_GPIO_ALT_C3),
/* Other alt C4 column */
DB8500_PIN_GROUP(sbag_oc4_1, NMK_GPIO_ALT_C4),
DB8500_PIN_GROUP(hwobs_oc4_1, NMK_GPIO_ALT_C4),
};
/* We use this macro to define the groups applicable to a function */
@ -742,7 +826,7 @@ DB8500_FUNC_GROUPS(u1, "u1rxtx_a_1", "u1ctsrts_a_1");
* only available on two pins in alternative function C
*/
DB8500_FUNC_GROUPS(u2, "u2rxtx_b_1", "u2rxtx_c_1", "u2ctsrts_c_1",
"u2rxtx_c_2", "u2rxtx_c_3");
"u2rxtx_c_2", "u2rxtx_c_3", "u2rx_oc1_1");
DB8500_FUNC_GROUPS(ipi2c, "ipi2c_a_1", "ipi2c_a_2");
/*
* MSP0 can only be on a certain set of pins, but the TX/RX pins can be
@ -757,7 +841,7 @@ DB8500_FUNC_GROUPS(msp1, "msp1txrx_a_1", "msp1_a_1", "msp1txrx_b_1");
DB8500_FUNC_GROUPS(lcdb, "lcdb_a_1");
DB8500_FUNC_GROUPS(lcd, "lcdvsi0_a_1", "lcdvsi1_a_1", "lcd_d0_d7_a_1",
"lcd_d8_d11_a_1", "lcd_d12_d23_a_1", "lcd_b_1");
DB8500_FUNC_GROUPS(kp, "kp_a_1", "kp_b_1", "kp_b_2", "kp_c_1", "kp_oc1_1");
DB8500_FUNC_GROUPS(kp, "kp_a_1", "kp_a_2", "kp_b_1", "kp_b_2", "kp_c_1", "kp_oc1_1");
DB8500_FUNC_GROUPS(mc2, "mc2_a_1", "mc2rstn_c_1");
DB8500_FUNC_GROUPS(ssp1, "ssp1_a_1");
DB8500_FUNC_GROUPS(ssp0, "ssp0_a_1");
@ -773,7 +857,8 @@ DB8500_FUNC_GROUPS(msp2, "msp2sck_a_1", "msp2_a_1");
DB8500_FUNC_GROUPS(mc4, "mc4_a_1", "mc4rstn_c_1");
DB8500_FUNC_GROUPS(mc1, "mc1_a_1", "mc1_a_2", "mc1dir_a_1");
DB8500_FUNC_GROUPS(hsi, "hsir_a_1", "hsit_a_1", "hsit_a_2");
DB8500_FUNC_GROUPS(clkout, "clkout_a_1", "clkout_a_2", "clkout_c_1");
DB8500_FUNC_GROUPS(clkout, "clkout1_a_1", "clkout1_a_2", "clkout1_c_1",
"clkout2_a_1", "clkout2_a_2", "clkout2_c_1");
DB8500_FUNC_GROUPS(usb, "usb_a_1");
DB8500_FUNC_GROUPS(trig, "trig_b_1");
DB8500_FUNC_GROUPS(i2c4, "i2c4_b_1");
@ -784,8 +869,10 @@ DB8500_FUNC_GROUPS(i2c2, "i2c2_b_1", "i2c2_b_2");
* so select one of each.
*/
DB8500_FUNC_GROUPS(uartmod, "uartmodtx_b_1", "uartmodrx_b_1", "uartmodrx_b_2",
"uartmodrx_c_1", "uartmod_tx_c_1");
DB8500_FUNC_GROUPS(stmmod, "stmmod_b_1", "stmmod_c_1");
"uartmodrx_c_1", "uartmod_tx_c_1", "uartmodrx_oc1_1",
"uartmodtx_oc1_1", "uartmodrx_oc3_1", "uartmodtx_oc3_1");
DB8500_FUNC_GROUPS(stmmod, "stmmod_b_1", "stmmod_c_1", "stmmod_oc1_1",
"stmmod_oc3_1", "stmmod_oc3_2");
DB8500_FUNC_GROUPS(spi3, "spi3_b_1");
/* Select between CS0 on alt B or PS1 on alt C */
DB8500_FUNC_GROUPS(sm, "sm_b_1", "smcs0_b_1", "smcs1_b_1", "smcleale_c_1",
@ -799,13 +886,19 @@ DB8500_FUNC_GROUPS(ipjtag, "ipjtag_c_1");
DB8500_FUNC_GROUPS(slim0, "slim0_c_1");
DB8500_FUNC_GROUPS(ms, "ms_c_1");
DB8500_FUNC_GROUPS(iptrigout, "iptrigout_c_1");
DB8500_FUNC_GROUPS(stmape, "stmape_c_1", "stmape_c_2");
DB8500_FUNC_GROUPS(stmape, "stmape_c_1", "stmape_c_2", "stmape_oc1_1");
DB8500_FUNC_GROUPS(mc5, "mc5_c_1");
DB8500_FUNC_GROUPS(usbsim, "usbsim_c_1", "usbsim_c_2");
DB8500_FUNC_GROUPS(i2c3, "i2c3_c_1", "i2c3_c_2");
DB8500_FUNC_GROUPS(spi0, "spi0_c_1");
DB8500_FUNC_GROUPS(spi2, "spi2_oc1_1", "spi2_oc1_2");
DB8500_FUNC_GROUPS(remap, "remap0_oc1_1", "remap1_oc1_1");
DB8500_FUNC_GROUPS(sbag, "sbag_oc2_1", "sbag_oc4_1");
DB8500_FUNC_GROUPS(ptm, "ptma9_oc1_1", "ptma9_oc2_1");
DB8500_FUNC_GROUPS(rf, "rf_oc1_1", "rf_oc1_2");
DB8500_FUNC_GROUPS(hx, "hxclk_oc1_1", "hxgpio_oc1_1");
DB8500_FUNC_GROUPS(etm, "etmr4_oc2_1", "etmr4_oc3_1");
DB8500_FUNC_GROUPS(hwobs, "hwobs_oc4_1");
#define FUNCTION(fname) \
{ \
.name = #fname, \
@ -858,6 +951,12 @@ static const struct nmk_function nmk_db8500_functions[] = {
FUNCTION(i2c3),
FUNCTION(spi0),
FUNCTION(spi2),
FUNCTION(remap),
FUNCTION(ptm),
FUNCTION(rf),
FUNCTION(hx),
FUNCTION(etm),
FUNCTION(hwobs),
};
static const struct prcm_gpiocr_altcx_pin_desc db8500_altcx_pins[] = {

16
drivers/pinctrl/pinctrl-nomadik-db8540.c
View file

@ -460,8 +460,10 @@ static const unsigned hsit_a_1_pins[] = { DB8540_PIN_B11, DB8540_PIN_B10,
DB8540_PIN_E10, DB8540_PIN_B12, DB8540_PIN_D10 };
static const unsigned hsit_a_2_pins[] = { DB8540_PIN_B11, DB8540_PIN_B10,
DB8540_PIN_E10, DB8540_PIN_B12 };
static const unsigned clkout_a_1_pins[] = { DB8540_PIN_D11, DB8540_PIN_AJ6 };
static const unsigned clkout_a_2_pins[] = { DB8540_PIN_B13, DB8540_PIN_C12 };
static const unsigned clkout1_a_1_pins[] = { DB8540_PIN_D11 };
static const unsigned clkout1_a_2_pins[] = { DB8540_PIN_B13 };
static const unsigned clkout2_a_1_pins[] = { DB8540_PIN_AJ6 };
static const unsigned clkout2_a_2_pins[] = { DB8540_PIN_C12 };
static const unsigned msp4_a_1_pins[] = { DB8540_PIN_B14, DB8540_PIN_E11 };
static const unsigned usb_a_1_pins[] = { DB8540_PIN_D12, DB8540_PIN_D15,
DB8540_PIN_C13, DB8540_PIN_C14, DB8540_PIN_C18, DB8540_PIN_C16,
@ -698,8 +700,10 @@ static const struct nmk_pingroup nmk_db8540_groups[] = {
DB8540_PIN_GROUP(hsir_a_1, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(hsit_a_1, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(hsit_a_2, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(clkout_a_1, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(clkout_a_2, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(clkout1_a_1, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(clkout1_a_2, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(clkout2_a_1, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(clkout2_a_2, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(msp4_a_1, NMK_GPIO_ALT_A),
DB8540_PIN_GROUP(usb_a_1, NMK_GPIO_ALT_A),
/* Altfunction B column */
@ -822,6 +826,7 @@ static const struct nmk_pingroup nmk_db8540_groups[] = {
DB8540_PIN_GROUP(modaccuarttxrx_oc4_1, NMK_GPIO_ALT_C4),
DB8540_PIN_GROUP(modaccuartrtscts_oc4_1, NMK_GPIO_ALT_C4),
DB8540_PIN_GROUP(stmmod_oc4_1, NMK_GPIO_ALT_C4),
DB8540_PIN_GROUP(moduartstmmux_oc4_1, NMK_GPIO_ALT_C4),
};
@ -830,7 +835,8 @@ static const struct nmk_pingroup nmk_db8540_groups[] = {
static const char * const a##_groups[] = { b };
DB8540_FUNC_GROUPS(apetrig, "apetrig_b_1");
DB8540_FUNC_GROUPS(clkout, "clkoutreq_a_1", "clkout_a_1", "clkout_a_2");
DB8540_FUNC_GROUPS(clkout, "clkoutreq_a_1", "clkout1_a_1", "clkout1_a_2",
"clkout2_a_1", "clkout2_a_2");
DB8540_FUNC_GROUPS(ddrtrig, "ddrtrig_b_1");
DB8540_FUNC_GROUPS(hsi, "hsir_a_1", "hsit_a_1", "hsit_a_2");
DB8540_FUNC_GROUPS(hwobs, "hwobs_oc4_1");

152
drivers/pinctrl/pinctrl-nomadik.c
View file

@ -30,26 +30,10 @@
#include <linux/pinctrl/pinconf.h>
/* Since we request GPIOs from ourself */
#include <linux/pinctrl/consumer.h>
/*
* For the U8500 archs, use the PRCMU register interface, for the older
* Nomadik, provide some stubs. The functions using these will only be
* called on the U8500 series.
*/
#ifdef CONFIG_ARCH_U8500
#include <linux/mfd/dbx500-prcmu.h>
#else
static inline u32 prcmu_read(unsigned int reg) {
return 0;
}
static inline void prcmu_write(unsigned int reg, u32 value) {}
static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value) {}
#endif
#include <linux/platform_data/pinctrl-nomadik.h>
#include <asm/mach/irq.h>
#include <plat/pincfg.h>
#include <plat/gpio-nomadik.h>
#include "pinctrl-nomadik.h"
/*
@ -60,8 +44,6 @@ static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value) {}
* Symbols in this file are called "nmk_gpio" for "nomadik gpio"
*/
#define NMK_GPIO_PER_CHIP 32
struct nmk_gpio_chip {
struct gpio_chip chip;
struct irq_domain *domain;
@ -86,10 +68,18 @@ struct nmk_gpio_chip {
u32 lowemi;
};
/**
* struct nmk_pinctrl - state container for the Nomadik pin controller
* @dev: containing device pointer
* @pctl: corresponding pin controller device
* @soc: SoC data for this specific chip
* @prcm_base: PRCM register range virtual base
*/
struct nmk_pinctrl {
struct device *dev;
struct pinctrl_dev *pctl;
const struct nmk_pinctrl_soc_data *soc;
void __iomem *prcm_base;
};
static struct nmk_gpio_chip *
@ -251,6 +241,15 @@ nmk_gpio_disable_lazy_irq(struct nmk_gpio_chip *nmk_chip, unsigned offset)
dev_dbg(nmk_chip->chip.dev, "%d: clearing interrupt mask\n", gpio);
}
static void nmk_write_masked(void __iomem *reg, u32 mask, u32 value)
{
u32 val;
val = readl(reg);
val = ((val & ~mask) | (value & mask));
writel(val, reg);
}
static void nmk_prcm_altcx_set_mode(struct nmk_pinctrl *npct,
unsigned offset, unsigned alt_num)
{
@ -289,8 +288,8 @@ static void nmk_prcm_altcx_set_mode(struct nmk_pinctrl *npct,
if (pin_desc->altcx[i].used == true) {
reg = gpiocr_regs[pin_desc->altcx[i].reg_index];
bit = pin_desc->altcx[i].control_bit;
if (prcmu_read(reg) & BIT(bit)) {
prcmu_write_masked(reg, BIT(bit), 0);
if (readl(npct->prcm_base + reg) & BIT(bit)) {
nmk_write_masked(npct->prcm_base + reg, BIT(bit), 0);
dev_dbg(npct->dev,
"PRCM GPIOCR: pin %i: alternate-C%i has been disabled\n",
offset, i+1);
@ -318,8 +317,8 @@ static void nmk_prcm_altcx_set_mode(struct nmk_pinctrl *npct,
if (pin_desc->altcx[i].used == true) {
reg = gpiocr_regs[pin_desc->altcx[i].reg_index];
bit = pin_desc->altcx[i].control_bit;
if (prcmu_read(reg) & BIT(bit)) {
prcmu_write_masked(reg, BIT(bit), 0);
if (readl(npct->prcm_base + reg) & BIT(bit)) {
nmk_write_masked(npct->prcm_base + reg, BIT(bit), 0);
dev_dbg(npct->dev,
"PRCM GPIOCR: pin %i: alternate-C%i has been disabled\n",
offset, i+1);
@ -331,7 +330,7 @@ static void nmk_prcm_altcx_set_mode(struct nmk_pinctrl *npct,
bit = pin_desc->altcx[alt_index].control_bit;
dev_dbg(npct->dev, "PRCM GPIOCR: pin %i: alternate-C%i has been selected\n",
offset, alt_index+1);
prcmu_write_masked(reg, BIT(bit), BIT(bit));
nmk_write_masked(npct->prcm_base + reg, BIT(bit), BIT(bit));
}
static void __nmk_config_pin(struct nmk_gpio_chip *nmk_chip, unsigned offset,
@ -536,7 +535,7 @@ static int __nmk_config_pins(pin_cfg_t *cfgs, int num, bool sleep)
* and its sleep mode based on the specified configuration. The @cfg is
* usually one of the SoC specific macros defined in mach/<soc>-pins.h. These
* are constructed using, and can be further enhanced with, the macros in
* plat/pincfg.h.
* <linux/platform_data/pinctrl-nomadik.h>
*
* If a pin's mode is set to GPIO, it is configured as an input to avoid
* side-effects. The gpio can be manipulated later using standard GPIO API
@ -675,6 +674,35 @@ int nmk_gpio_set_mode(int gpio, int gpio_mode)
}
EXPORT_SYMBOL(nmk_gpio_set_mode);
static int nmk_prcm_gpiocr_get_mode(struct pinctrl_dev *pctldev, int gpio)
{
int i;
u16 reg;
u8 bit;
struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
const struct prcm_gpiocr_altcx_pin_desc *pin_desc;
const u16 *gpiocr_regs;
for (i = 0; i < npct->soc->npins_altcx; i++) {
if (npct->soc->altcx_pins[i].pin == gpio)
break;
}
if (i == npct->soc->npins_altcx)
return NMK_GPIO_ALT_C;
pin_desc = npct->soc->altcx_pins + i;
gpiocr_regs = npct->soc->prcm_gpiocr_registers;
for (i = 0; i < PRCM_IDX_GPIOCR_ALTC_MAX; i++) {
if (pin_desc->altcx[i].used == true) {
reg = gpiocr_regs[pin_desc->altcx[i].reg_index];
bit = pin_desc->altcx[i].control_bit;
if (readl(npct->prcm_base + reg) & BIT(bit))
return NMK_GPIO_ALT_C+i+1;
}
}
return NMK_GPIO_ALT_C;
}
int nmk_gpio_get_mode(int gpio)
{
struct nmk_gpio_chip *nmk_chip;
@ -1063,8 +1091,9 @@ static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
#include <linux/seq_file.h>
static void nmk_gpio_dbg_show_one(struct seq_file *s, struct gpio_chip *chip,
unsigned offset, unsigned gpio)
static void nmk_gpio_dbg_show_one(struct seq_file *s,
struct pinctrl_dev *pctldev, struct gpio_chip *chip,
unsigned offset, unsigned gpio)
{
const char *label = gpiochip_is_requested(chip, offset);
struct nmk_gpio_chip *nmk_chip =
@ -1078,12 +1107,18 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s, struct gpio_chip *chip,
[NMK_GPIO_ALT_A] = "altA",
[NMK_GPIO_ALT_B] = "altB",
[NMK_GPIO_ALT_C] = "altC",
[NMK_GPIO_ALT_C+1] = "altC1",
[NMK_GPIO_ALT_C+2] = "altC2",
[NMK_GPIO_ALT_C+3] = "altC3",
[NMK_GPIO_ALT_C+4] = "altC4",
};
clk_enable(nmk_chip->clk);
is_out = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & bit);
pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit);
mode = nmk_gpio_get_mode(gpio);
if ((mode == NMK_GPIO_ALT_C) && pctldev)
mode = nmk_prcm_gpiocr_get_mode(pctldev, gpio);
seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s",
gpio, label ?: "(none)",
@ -1127,13 +1162,14 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
unsigned gpio = chip->base;
for (i = 0; i < chip->ngpio; i++, gpio++) {
nmk_gpio_dbg_show_one(s, chip, i, gpio);
nmk_gpio_dbg_show_one(s, NULL, chip, i, gpio);
seq_printf(s, "\n");
}
}
#else
static inline void nmk_gpio_dbg_show_one(struct seq_file *s,
struct pinctrl_dev *pctldev,
struct gpio_chip *chip,
unsigned offset, unsigned gpio)
{
@ -1250,8 +1286,8 @@ void nmk_gpio_read_pull(int gpio_bank, u32 *pull_up)
}
}
int nmk_gpio_irq_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq)
static int nmk_gpio_irq_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq)
{
struct nmk_gpio_chip *nmk_chip = d->host_data;
@ -1464,7 +1500,7 @@ static void nmk_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
return;
}
chip = range->gc;
nmk_gpio_dbg_show_one(s, chip, offset - chip->base, offset);
nmk_gpio_dbg_show_one(s, pctldev, chip, offset - chip->base, offset);
}
static struct pinctrl_ops nmk_pinctrl_ops = {
@ -1635,9 +1671,9 @@ static void nmk_pmx_disable(struct pinctrl_dev *pctldev,
dev_dbg(npct->dev, "disable group %s, %u pins\n", g->name, g->npins);
}
int nmk_gpio_request_enable(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned offset)
static int nmk_gpio_request_enable(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned offset)
{
struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
struct nmk_gpio_chip *nmk_chip;
@ -1666,9 +1702,9 @@ int nmk_gpio_request_enable(struct pinctrl_dev *pctldev,
return 0;
}
void nmk_gpio_disable_free(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned offset)
static void nmk_gpio_disable_free(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned offset)
{
struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
@ -1686,17 +1722,15 @@ static struct pinmux_ops nmk_pinmux_ops = {
.gpio_disable_free = nmk_gpio_disable_free,
};
int nmk_pin_config_get(struct pinctrl_dev *pctldev,
unsigned pin,
unsigned long *config)
static int nmk_pin_config_get(struct pinctrl_dev *pctldev, unsigned pin,
unsigned long *config)
{
/* Not implemented */
return -EINVAL;
}
int nmk_pin_config_set(struct pinctrl_dev *pctldev,
unsigned pin,
unsigned long config)
static int nmk_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
unsigned long config)
{
static const char *pullnames[] = {
[NMK_GPIO_PULL_NONE] = "none",
@ -1818,6 +1852,7 @@ static int __devinit nmk_pinctrl_probe(struct platform_device *pdev)
const struct platform_device_id *platid = platform_get_device_id(pdev);
struct device_node *np = pdev->dev.of_node;
struct nmk_pinctrl *npct;
struct resource *res;
unsigned int version = 0;
int i;
@ -1827,9 +1862,14 @@ static int __devinit nmk_pinctrl_probe(struct platform_device *pdev)
if (platid)
version = platid->driver_data;
else if (np)
version = (unsigned int)
of_match_device(nmk_pinctrl_match, &pdev->dev)->data;
else if (np) {
const struct of_device_id *match;
match = of_match_device(nmk_pinctrl_match, &pdev->dev);
if (!match)
return -ENODEV;
version = (unsigned int) match->data;
}
/* Poke in other ASIC variants here */
if (version == PINCTRL_NMK_STN8815)
@ -1839,22 +1879,37 @@ static int __devinit nmk_pinctrl_probe(struct platform_device *pdev)
if (version == PINCTRL_NMK_DB8540)
nmk_pinctrl_db8540_init(&npct->soc);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res) {
npct->prcm_base = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!npct->prcm_base) {
dev_err(&pdev->dev,
"failed to ioremap PRCM registers\n");
return -ENOMEM;
}
} else {
dev_info(&pdev->dev,
"No PRCM base, assume no ALT-Cx control is available\n");
}
/*
* We need all the GPIO drivers to probe FIRST, or we will not be able
* to obtain references to the struct gpio_chip * for them, and we
* need this to proceed.
*/
for (i = 0; i < npct->soc->gpio_num_ranges; i++) {
if (!nmk_gpio_chips[i]) {
if (!nmk_gpio_chips[npct->soc->gpio_ranges[i].id]) {
dev_warn(&pdev->dev, "GPIO chip %d not registered yet\n", i);
return -EPROBE_DEFER;
}
npct->soc->gpio_ranges[i].gc = &nmk_gpio_chips[i]->chip;
npct->soc->gpio_ranges[i].gc = &nmk_gpio_chips[npct->soc->gpio_ranges[i].id]->chip;
}
nmk_pinctrl_desc.pins = npct->soc->pins;
nmk_pinctrl_desc.npins = npct->soc->npins;
npct->dev = &pdev->dev;
npct->pctl = pinctrl_register(&nmk_pinctrl_desc, &pdev->dev, npct);
if (!npct->pctl) {
dev_err(&pdev->dev, "could not register Nomadik pinctrl driver\n");
@ -1889,6 +1944,7 @@ static const struct platform_device_id nmk_pinctrl_id[] = {
{ "pinctrl-stn8815", PINCTRL_NMK_STN8815 },
{ "pinctrl-db8500", PINCTRL_NMK_DB8500 },
{ "pinctrl-db8540", PINCTRL_NMK_DB8540 },
{ }
};
static struct platform_driver nmk_pinctrl_driver = {

2
drivers/pinctrl/pinctrl-nomadik.h
View file

@ -1,7 +1,7 @@
#ifndef PINCTRL_PINCTRL_NOMADIK_H
#define PINCTRL_PINCTRL_NOMADIK_H
#include <plat/gpio-nomadik.h>
#include <linux/platform_data/pinctrl-nomadik.h>
/* Package definitions */
#define PINCTRL_NMK_STN8815 0

12
drivers/pinctrl/pinctrl-pxa3xx.c
View file

@ -173,7 +173,6 @@ int pxa3xx_pinctrl_register(struct platform_device *pdev,
{
struct pinctrl_desc *desc;
struct resource *res;
int ret = 0;
if (!info || !info->cputype)
return -EINVAL;
@ -188,23 +187,17 @@ int pxa3xx_pinctrl_register(struct platform_device *pdev,
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENOENT;
info->phy_base = res->start;
info->phy_size = resource_size(res);
info->virt_base = ioremap(info->phy_base, info->phy_size);
info->virt_base = devm_request_and_ioremap(&pdev->dev, res);
if (!info->virt_base)
return -ENOMEM;
info->pctrl = pinctrl_register(desc, &pdev->dev, info);
if (!info->pctrl) {
dev_err(&pdev->dev, "failed to register PXA pinmux driver\n");
ret = -EINVAL;
goto err;
return -EINVAL;
}
pinctrl_add_gpio_range(info->pctrl, &pxa3xx_pinctrl_gpio_range);
platform_set_drvdata(pdev, info);
return 0;
err:
iounmap(info->virt_base);
return ret;
}
int pxa3xx_pinctrl_unregister(struct platform_device *pdev)
@ -212,7 +205,6 @@ int pxa3xx_pinctrl_unregister(struct platform_device *pdev)
struct pxa3xx_pinmux_info *info = platform_get_drvdata(pdev);
pinctrl_unregister(info->pctrl);
iounmap(info->virt_base);
platform_set_drvdata(pdev, NULL);
return 0;
}

2
drivers/pinctrl/pinctrl-pxa3xx.h
View file

@ -60,8 +60,6 @@ struct pxa3xx_pinmux_info {
struct device *dev;
struct pinctrl_dev *pctrl;
enum pxa_cpu_type cputype;
unsigned int phy_base;
unsigned int phy_size;
void __iomem *virt_base;
struct pxa3xx_mfp_pin *mfp;

90
drivers/pinctrl/pinctrl-single.c
View file

@ -30,6 +30,7 @@
#define PCS_MUX_BITS_NAME "pinctrl-single,bits"
#define PCS_REG_NAME_LEN ((sizeof(unsigned long) * 2) + 1)
#define PCS_OFF_DISABLED ~0U
#define PCS_MAX_GPIO_VALUES 2
/**
* struct pcs_pingroup - pingroups for a function
@ -76,6 +77,16 @@ struct pcs_function {
struct list_head node;
};
/**
* struct pcs_gpio_range - pinctrl gpio range
* @range: subrange of the GPIO number space
* @gpio_func: gpio function value in the pinmux register
*/
struct pcs_gpio_range {
struct pinctrl_gpio_range range;
int gpio_func;
};
/**
* struct pcs_data - wrapper for data needed by pinctrl framework
* @pa: pindesc array
@ -244,15 +255,15 @@ static int pcs_get_group_pins(struct pinctrl_dev *pctldev,
static void pcs_pin_dbg_show(struct pinctrl_dev *pctldev,
struct seq_file *s,
unsigned offset)
unsigned pin)
{
struct pcs_device *pcs;
unsigned val;
unsigned val, mux_bytes;
pcs = pinctrl_dev_get_drvdata(pctldev);
val = pcs->read(pcs->base + offset);
val &= pcs->fmask;
mux_bytes = pcs->width / BITS_PER_BYTE;
val = pcs->read(pcs->base + pin * mux_bytes);
seq_printf(s, "%08x %s " , val, DRIVER_NAME);
}
@ -403,9 +414,26 @@ static void pcs_disable(struct pinctrl_dev *pctldev, unsigned fselector,
}
static int pcs_request_gpio(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range, unsigned offset)
struct pinctrl_gpio_range *range, unsigned pin)
{
return -ENOTSUPP;
struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
struct pcs_gpio_range *gpio = NULL;
int end, mux_bytes;
unsigned data;
gpio = container_of(range, struct pcs_gpio_range, range);
end = range->pin_base + range->npins - 1;
if (pin < range->pin_base || pin > end) {
dev_err(pctldev->dev,
"pin %d isn't in the range of %d to %d\n",
pin, range->pin_base, end);
return -EINVAL;
}
mux_bytes = pcs->width / BITS_PER_BYTE;
data = pcs->read(pcs->base + pin * mux_bytes) & ~pcs->fmask;
data |= gpio->gpio_func;
pcs->write(data, pcs->base + pin * mux_bytes);
return 0;
}
static struct pinmux_ops pcs_pinmux_ops = {
@ -772,7 +800,7 @@ static int pcs_dt_node_to_map(struct pinctrl_dev *pctldev,
pcs = pinctrl_dev_get_drvdata(pctldev);
*map = devm_kzalloc(pcs->dev, sizeof(**map), GFP_KERNEL);
if (!map)
if (!*map)
return -ENOMEM;
*num_maps = 0;
@ -879,6 +907,50 @@ static void pcs_free_resources(struct pcs_device *pcs)
static struct of_device_id pcs_of_match[];
static int __devinit pcs_add_gpio_range(struct device_node *node,
struct pcs_device *pcs)
{
struct pcs_gpio_range *gpio;
struct device_node *child;
struct resource r;
const char name[] = "pinctrl-single";
u32 gpiores[PCS_MAX_GPIO_VALUES];
int ret, i = 0, mux_bytes = 0;
for_each_child_of_node(node, child) {
ret = of_address_to_resource(child, 0, &r);
if (ret < 0)
continue;
memset(gpiores, 0, sizeof(u32) * PCS_MAX_GPIO_VALUES);
ret = of_property_read_u32_array(child, "pinctrl-single,gpio",
gpiores, PCS_MAX_GPIO_VALUES);
if (ret < 0)
continue;
gpio = devm_kzalloc(pcs->dev, sizeof(*gpio), GFP_KERNEL);
if (!gpio) {
dev_err(pcs->dev, "failed to allocate pcs gpio\n");
return -ENOMEM;
}
gpio->range.name = devm_kzalloc(pcs->dev, sizeof(name),
GFP_KERNEL);
if (!gpio->range.name) {
dev_err(pcs->dev, "failed to allocate range name\n");
return -ENOMEM;
}
memcpy((char *)gpio->range.name, name, sizeof(name));
gpio->range.id = i++;
gpio->range.base = gpiores[0];
gpio->gpio_func = gpiores[1];
mux_bytes = pcs->width / BITS_PER_BYTE;
gpio->range.pin_base = (r.start - pcs->res->start) / mux_bytes;
gpio->range.npins = (r.end - r.start) / mux_bytes + 1;
pinctrl_add_gpio_range(pcs->pctl, &gpio->range);
}
return 0;
}
static int __devinit pcs_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@ -975,6 +1047,10 @@ static int __devinit pcs_probe(struct platform_device *pdev)
goto free;
}
ret = pcs_add_gpio_range(np, pcs);
if (ret < 0)
goto free;
dev_info(pcs->dev, "%i pins at pa %p size %u\n",
pcs->desc.npins, pcs->base, pcs->size);

52
drivers/pinctrl/pinctrl-sirf.c
View file

@ -32,10 +32,10 @@
#define SIRFSOC_NUM_PADS 622
#define SIRFSOC_RSC_PIN_MUX 0x4
#define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
#define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
#define SIRFSOC_GPIO_PAD_EN_CLR(g) ((g)*0x100 + 0x90)
#define SIRFSOC_GPIO_CTRL(g, i) ((g)*0x100 + (i)*4)
#define SIRFSOC_GPIO_DSP_EN0 (0x80)
#define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
#define SIRFSOC_GPIO_INT_STATUS(g) ((g)*0x100 + 0x8C)
#define SIRFSOC_GPIO_CTL_INTR_LOW_MASK 0x1
@ -60,6 +60,7 @@ struct sirfsoc_gpio_bank {
int id;
int parent_irq;
spinlock_t lock;
bool is_marco; /* for marco, some registers are different with prima2 */
};
static struct sirfsoc_gpio_bank sgpio_bank[SIRFSOC_GPIO_NO_OF_BANKS];
@ -191,6 +192,7 @@ struct sirfsoc_pmx {
struct pinctrl_dev *pmx;
void __iomem *gpio_virtbase;
void __iomem *rsc_virtbase;
bool is_marco;
};
/* SIRFSOC_GPIO_PAD_EN set */
@ -1088,12 +1090,21 @@ static void sirfsoc_pinmux_endisable(struct sirfsoc_pmx *spmx, unsigned selector
for (i = 0; i < mux->muxmask_counts; i++) {
u32 muxval;
muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
if (enable)
muxval = muxval & ~mask[i].mask;
else
muxval = muxval | mask[i].mask;
writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
if (!spmx->is_marco) {
muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
if (enable)
muxval = muxval & ~mask[i].mask;
else
muxval = muxval | mask[i].mask;
writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
} else {
if (enable)
writel(mask[i].mask, spmx->gpio_virtbase +
SIRFSOC_GPIO_PAD_EN_CLR(mask[i].group));
else
writel(mask[i].mask, spmx->gpio_virtbase +
SIRFSOC_GPIO_PAD_EN(mask[i].group));
}
}
if (mux->funcmask && enable) {
@ -1158,9 +1169,14 @@ static int sirfsoc_pinmux_request_gpio(struct pinctrl_dev *pmxdev,
spmx = pinctrl_dev_get_drvdata(pmxdev);
muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
muxval = muxval | (1 << (offset - range->pin_base));
writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
if (!spmx->is_marco) {
muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
muxval = muxval | (1 << (offset - range->pin_base));
writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
} else {
writel(1 << (offset - range->pin_base), spmx->gpio_virtbase +
SIRFSOC_GPIO_PAD_EN(group));
}
return 0;
}
@ -1218,6 +1234,7 @@ static void __iomem *sirfsoc_rsc_of_iomap(void)
{
const struct of_device_id rsc_ids[] = {
{ .compatible = "sirf,prima2-rsc" },
{ .compatible = "sirf,marco-rsc" },
{}
};
struct device_node *np;
@ -1259,6 +1276,9 @@ static int __devinit sirfsoc_pinmux_probe(struct platform_device *pdev)
goto out_no_rsc_remap;
}
if (of_device_is_compatible(np, "sirf,marco-pinctrl"))
spmx->is_marco = 1;
/* Now register the pin controller and all pins it handles */
spmx->pmx = pinctrl_register(&sirfsoc_pinmux_desc, &pdev->dev, spmx);
if (!spmx->pmx) {
@ -1287,6 +1307,7 @@ out_no_gpio_remap:
static const struct of_device_id pinmux_ids[] __devinitconst = {
{ .compatible = "sirf,prima2-pinctrl" },
{ .compatible = "sirf,marco-pinctrl" },
{}
};
@ -1621,8 +1642,8 @@ static void sirfsoc_gpio_set_value(struct gpio_chip *chip, unsigned offset,
spin_unlock_irqrestore(&bank->lock, flags);
}
int sirfsoc_gpio_irq_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq)
static int sirfsoc_gpio_irq_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq)
{
struct sirfsoc_gpio_bank *bank = d->host_data;
@ -1648,6 +1669,7 @@ static int __devinit sirfsoc_gpio_probe(struct device_node *np)
struct sirfsoc_gpio_bank *bank;
void *regs;
struct platform_device *pdev;
bool is_marco = false;
pdev = of_find_device_by_node(np);
if (!pdev)
@ -1657,6 +1679,9 @@ static int __devinit sirfsoc_gpio_probe(struct device_node *np)
if (!regs)
return -ENOMEM;
if (of_device_is_compatible(np, "sirf,marco-pinctrl"))
is_marco = 1;
for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
bank = &sgpio_bank[i];
spin_lock_init(&bank->lock);
@ -1673,6 +1698,7 @@ static int __devinit sirfsoc_gpio_probe(struct device_node *np)
bank->chip.gc.of_node = np;
bank->chip.regs = regs;
bank->id = i;
bank->is_marco = is_marco;
bank->parent_irq = platform_get_irq(pdev, i);
if (bank->parent_irq < 0) {
err = bank->parent_irq;

24
drivers/pinctrl/pinctrl-tegra.c
View file

@ -178,8 +178,9 @@ static int add_config(struct device *dev, unsigned long **configs,
return 0;
}
void tegra_pinctrl_dt_free_map(struct pinctrl_dev *pctldev,
struct pinctrl_map *map, unsigned num_maps)
static void tegra_pinctrl_dt_free_map(struct pinctrl_dev *pctldev,
struct pinctrl_map *map,
unsigned num_maps)
{
int i;
@ -209,11 +210,11 @@ static const struct cfg_param {
{"nvidia,slew-rate-rising", TEGRA_PINCONF_PARAM_SLEW_RATE_RISING},
};
int tegra_pinctrl_dt_subnode_to_map(struct device *dev,
struct device_node *np,
struct pinctrl_map **map,
unsigned *reserved_maps,
unsigned *num_maps)
static int tegra_pinctrl_dt_subnode_to_map(struct device *dev,
struct device_node *np,
struct pinctrl_map **map,
unsigned *reserved_maps,
unsigned *num_maps)
{
int ret, i;
const char *function;
@ -288,9 +289,10 @@ exit:
return ret;
}
int tegra_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
struct device_node *np_config,
struct pinctrl_map **map, unsigned *num_maps)
static int tegra_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
struct device_node *np_config,
struct pinctrl_map **map,
unsigned *num_maps)
{
unsigned reserved_maps;
struct device_node *np;
@ -660,7 +662,7 @@ static void tegra_pinconf_config_dbg_show(struct pinctrl_dev *pctldev,
}
#endif
struct pinconf_ops tegra_pinconf_ops = {
static struct pinconf_ops tegra_pinconf_ops = {
.pin_config_get = tegra_pinconf_get,
.pin_config_set = tegra_pinconf_set,
.pin_config_group_get = tegra_pinconf_group_get,

97
drivers/pinctrl/pinctrl-u300.c
View file

@ -663,8 +663,6 @@ static const struct pinctrl_pin_desc u300_pads[] = {
struct u300_pmx {
struct device *dev;
struct pinctrl_dev *pctl;
u32 phybase;
u32 physize;
void __iomem *virtbase;
};
@ -1013,52 +1011,11 @@ static struct pinmux_ops u300_pmx_ops = {
.disable = u300_pmx_disable,
};
/*
* GPIO ranges handled by the application-side COH901XXX GPIO controller
* Very many pins can be converted into GPIO pins, but we only list those
* that are useful in practice to cut down on tables.
*/
#define U300_GPIO_RANGE(a, b, c) { .name = "COH901XXX", .id = a, .base= a, \
.pin_base = b, .npins = c }
static struct pinctrl_gpio_range u300_gpio_ranges[] = {
U300_GPIO_RANGE(10, 426, 1),
U300_GPIO_RANGE(11, 180, 1),
U300_GPIO_RANGE(12, 165, 1), /* MS/MMC card insertion */
U300_GPIO_RANGE(13, 179, 1),
U300_GPIO_RANGE(14, 178, 1),
U300_GPIO_RANGE(16, 194, 1),
U300_GPIO_RANGE(17, 193, 1),
U300_GPIO_RANGE(18, 192, 1),
U300_GPIO_RANGE(19, 191, 1),
U300_GPIO_RANGE(20, 186, 1),
U300_GPIO_RANGE(21, 185, 1),
U300_GPIO_RANGE(22, 184, 1),
U300_GPIO_RANGE(23, 183, 1),
U300_GPIO_RANGE(24, 182, 1),
U300_GPIO_RANGE(25, 181, 1),
};
static struct pinctrl_gpio_range *u300_match_gpio_range(unsigned pin)
static int u300_pin_config_get(struct pinctrl_dev *pctldev, unsigned pin,
unsigned long *config)
{
int i;
for (i = 0; i < ARRAY_SIZE(u300_gpio_ranges); i++) {
struct pinctrl_gpio_range *range;
range = &u300_gpio_ranges[i];
if (pin >= range->pin_base &&
pin <= (range->pin_base + range->npins - 1))
return range;
}
return NULL;
}
int u300_pin_config_get(struct pinctrl_dev *pctldev,
unsigned pin,
unsigned long *config)
{
struct pinctrl_gpio_range *range = u300_match_gpio_range(pin);
struct pinctrl_gpio_range *range =
pinctrl_find_gpio_range_from_pin(pctldev, pin);
/* We get config for those pins we CAN get it for and that's it */
if (!range)
@ -1069,11 +1026,11 @@ int u300_pin_config_get(struct pinctrl_dev *pctldev,
config);
}
int u300_pin_config_set(struct pinctrl_dev *pctldev,
unsigned pin,
unsigned long config)
static int u300_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
unsigned long config)
{
struct pinctrl_gpio_range *range = u300_match_gpio_range(pin);
struct pinctrl_gpio_range *range =
pinctrl_find_gpio_range_from_pin(pctldev, pin);
int ret;
if (!range)
@ -1109,9 +1066,6 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
{
struct u300_pmx *upmx;
struct resource *res;
struct gpio_chip *gpio_chip = dev_get_platdata(&pdev->dev);
int ret;
int i;
/* Create state holders etc for this driver */
upmx = devm_kzalloc(&pdev->dev, sizeof(*upmx), GFP_KERNEL);
@ -1123,32 +1077,15 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENOENT;
upmx->phybase = res->start;
upmx->physize = resource_size(res);
if (request_mem_region(upmx->phybase, upmx->physize,
DRIVER_NAME) == NULL) {
ret = -ENOMEM;
goto out_no_memregion;
}
upmx->virtbase = ioremap(upmx->phybase, upmx->physize);
if (!upmx->virtbase) {
ret = -ENOMEM;
goto out_no_remap;
}
upmx->virtbase = devm_request_and_ioremap(&pdev->dev, res);
if (!upmx->virtbase)
return -ENOMEM;
upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx);
if (!upmx->pctl) {
dev_err(&pdev->dev, "could not register U300 pinmux driver\n");
ret = -EINVAL;
goto out_no_pmx;
}
/* We will handle a range of GPIO pins */
for (i = 0; i < ARRAY_SIZE(u300_gpio_ranges); i++) {
u300_gpio_ranges[i].gc = gpio_chip;
pinctrl_add_gpio_range(upmx->pctl, &u300_gpio_ranges[i]);
return -EINVAL;
}
platform_set_drvdata(pdev, upmx);
@ -1156,14 +1093,6 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "initialized U300 pin control driver\n");
return 0;
out_no_pmx:
iounmap(upmx->virtbase);
out_no_remap:
platform_set_drvdata(pdev, NULL);
out_no_memregion:
release_mem_region(upmx->phybase, upmx->physize);
return ret;
}
static int __devexit u300_pmx_remove(struct platform_device *pdev)
@ -1171,8 +1100,6 @@ static int __devexit u300_pmx_remove(struct platform_device *pdev)
struct u300_pmx *upmx = platform_get_drvdata(pdev);
pinctrl_unregister(upmx->pctl);
iounmap(upmx->virtbase);
release_mem_region(upmx->phybase, upmx->physize);
platform_set_drvdata(pdev, NULL);
return 0;

2
drivers/pinctrl/pinctrl-xway.c
View file

@ -522,7 +522,7 @@ static int xway_pinconf_set(struct pinctrl_dev *pctldev,
return 0;
}
struct pinconf_ops xway_pinconf_ops = {
static struct pinconf_ops xway_pinconf_ops = {
.pin_config_get = xway_pinconf_get,
.pin_config_set = xway_pinconf_set,
};

85
drivers/pinctrl/pinmux.c
View file

@ -314,14 +314,11 @@ int pinmux_map_to_setting(struct pinctrl_map const *map,
{
struct pinctrl_dev *pctldev = setting->pctldev;
const struct pinmux_ops *pmxops = pctldev->desc->pmxops;
const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
char const * const *groups;
unsigned num_groups;
int ret;
const char *group;
int i;
const unsigned *pins;
unsigned num_pins;
if (!pmxops) {
dev_err(pctldev->dev, "does not support mux function\n");
@ -376,53 +373,12 @@ int pinmux_map_to_setting(struct pinctrl_map const *map,
}
setting->data.mux.group = ret;
ret = pctlops->get_group_pins(pctldev, setting->data.mux.group, &pins,
&num_pins);
if (ret) {
dev_err(pctldev->dev,
"could not get pins for device %s group selector %d\n",
pinctrl_dev_get_name(pctldev), setting->data.mux.group);
return -ENODEV;
}
/* Try to allocate all pins in this group, one by one */
for (i = 0; i < num_pins; i++) {
ret = pin_request(pctldev, pins[i], map->dev_name, NULL);
if (ret) {
dev_err(pctldev->dev,
"could not request pin %d on device %s\n",
pins[i], pinctrl_dev_get_name(pctldev));
/* On error release all taken pins */
i--; /* this pin just failed */
for (; i >= 0; i--)
pin_free(pctldev, pins[i], NULL);
return -ENODEV;
}
}
return 0;
}
void pinmux_free_setting(struct pinctrl_setting const *setting)
{
struct pinctrl_dev *pctldev = setting->pctldev;
const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
const unsigned *pins;
unsigned num_pins;
int ret;
int i;
ret = pctlops->get_group_pins(pctldev, setting->data.mux.group,
&pins, &num_pins);
if (ret) {
dev_err(pctldev->dev,
"could not get pins for device %s group selector %d\n",
pinctrl_dev_get_name(pctldev), setting->data.mux.group);
return;
}
for (i = 0; i < num_pins; i++)
pin_free(pctldev, pins[i], NULL);
/* This function is currently unused */
}
int pinmux_enable_setting(struct pinctrl_setting const *setting)
@ -446,6 +402,18 @@ int pinmux_enable_setting(struct pinctrl_setting const *setting)
num_pins = 0;
}
/* Try to allocate all pins in this group, one by one */
for (i = 0; i < num_pins; i++) {
ret = pin_request(pctldev, pins[i], setting->dev_name, NULL);
if (ret) {
dev_err(pctldev->dev,
"could not request pin %d on device %s\n",
pins[i], pinctrl_dev_get_name(pctldev));
goto err_pin_request;
}
}
/* Now that we have acquired the pins, encode the mux setting */
for (i = 0; i < num_pins; i++) {
desc = pin_desc_get(pctldev, pins[i]);
if (desc == NULL) {
@ -457,8 +425,26 @@ int pinmux_enable_setting(struct pinctrl_setting const *setting)
desc->mux_setting = &(setting->data.mux);
}
return ops->enable(pctldev, setting->data.mux.func,
setting->data.mux.group);
ret = ops->enable(pctldev, setting->data.mux.func,
setting->data.mux.group);
if (ret)
goto err_enable;
return 0;
err_enable:
for (i = 0; i < num_pins; i++) {
desc = pin_desc_get(pctldev, pins[i]);
if (desc)
desc->mux_setting = NULL;
}
err_pin_request:
/* On error release all taken pins */
while (--i >= 0)
pin_free(pctldev, pins[i], NULL);
return ret;
}
void pinmux_disable_setting(struct pinctrl_setting const *setting)
@ -482,6 +468,7 @@ void pinmux_disable_setting(struct pinctrl_setting const *setting)
num_pins = 0;
}
/* Flag the descs that no setting is active */
for (i = 0; i < num_pins; i++) {
desc = pin_desc_get(pctldev, pins[i]);
if (desc == NULL) {
@ -493,6 +480,10 @@ void pinmux_disable_setting(struct pinctrl_setting const *setting)
desc->mux_setting = NULL;
}
/* And release the pins */
for (i = 0; i < num_pins; i++)
pin_free(pctldev, pins[i], NULL);
if (ops->disable)
ops->disable(pctldev, setting->data.mux.func, setting->data.mux.group);
}

11
drivers/pinctrl/spear/Kconfig
View file

@ -25,20 +25,31 @@ config PINCTRL_SPEAR310
bool "ST Microelectronics SPEAr310 SoC pin controller driver"
depends on MACH_SPEAR310
select PINCTRL_SPEAR3XX
select PINCTRL_SPEAR_PLGPIO
config PINCTRL_SPEAR320
bool "ST Microelectronics SPEAr320 SoC pin controller driver"
depends on MACH_SPEAR320
select PINCTRL_SPEAR3XX
select PINCTRL_SPEAR_PLGPIO
config PINCTRL_SPEAR1310
bool "ST Microelectronics SPEAr1310 SoC pin controller driver"
depends on MACH_SPEAR1310
select PINCTRL_SPEAR
select PINCTRL_SPEAR_PLGPIO
config PINCTRL_SPEAR1340
bool "ST Microelectronics SPEAr1340 SoC pin controller driver"
depends on MACH_SPEAR1340
select PINCTRL_SPEAR
select PINCTRL_SPEAR_PLGPIO
config PINCTRL_SPEAR_PLGPIO
bool "SPEAr SoC PLGPIO Controller"
depends on GPIOLIB && PINCTRL_SPEAR
help
Say yes here to support PLGPIO controller on ST Microelectronics SPEAr
SoCs.
endif

1
drivers/pinctrl/spear/Makefile
View file

@ -1,5 +1,6 @@
# SPEAr pinmux support
obj-$(CONFIG_PINCTRL_SPEAR_PLGPIO) += pinctrl-plgpio.o
obj-$(CONFIG_PINCTRL_SPEAR) += pinctrl-spear.o
obj-$(CONFIG_PINCTRL_SPEAR3XX) += pinctrl-spear3xx.o
obj-$(CONFIG_PINCTRL_SPEAR300) += pinctrl-spear300.o

758
drivers/pinctrl/spear/pinctrl-plgpio.c Normal file
View file

@ -0,0 +1,758 @@
/*
* SPEAr platform PLGPIO driver
*
* Copyright (C) 2012 ST Microelectronics
* Viresh Kumar <viresh.kumar@linaro.org>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/module.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/spinlock.h>
#include <asm/mach/irq.h>
#define MAX_GPIO_PER_REG 32
#define PIN_OFFSET(pin) (pin % MAX_GPIO_PER_REG)
#define REG_OFFSET(base, reg, pin) (base + reg + (pin / MAX_GPIO_PER_REG) \
* sizeof(int *))
/*
* plgpio pins in all machines are not one to one mapped, bitwise with registers
* bits. These set of macros define register masks for which below functions
* (pin_to_offset and offset_to_pin) are required to be called.
*/
#define PTO_ENB_REG 0x001
#define PTO_WDATA_REG 0x002
#define PTO_DIR_REG 0x004
#define PTO_IE_REG 0x008
#define PTO_RDATA_REG 0x010
#define PTO_MIS_REG 0x020
struct plgpio_regs {
u32 enb; /* enable register */
u32 wdata; /* write data register */
u32 dir; /* direction set register */
u32 rdata; /* read data register */
u32 ie; /* interrupt enable register */
u32 mis; /* mask interrupt status register */
u32 eit; /* edge interrupt type */
};
/*
* struct plgpio: plgpio driver specific structure
*
* lock: lock for guarding gpio registers
* base: base address of plgpio block
* irq_base: irq number of plgpio0
* chip: gpio framework specific chip information structure
* p2o: function ptr for pin to offset conversion. This is required only for
* machines where mapping b/w pin and offset is not 1-to-1.
* o2p: function ptr for offset to pin conversion. This is required only for
* machines where mapping b/w pin and offset is not 1-to-1.
* p2o_regs: mask of registers for which p2o and o2p are applicable
* regs: register offsets
* csave_regs: context save registers for standby/sleep/hibernate cases
*/
struct plgpio {
spinlock_t lock;
void __iomem *base;
struct clk *clk;
unsigned irq_base;
struct irq_domain *irq_domain;
struct gpio_chip chip;
int (*p2o)(int pin); /* pin_to_offset */
int (*o2p)(int offset); /* offset_to_pin */
u32 p2o_regs;
struct plgpio_regs regs;
#ifdef CONFIG_PM
struct plgpio_regs *csave_regs;
#endif
};
/* register manipulation inline functions */
static inline u32 is_plgpio_set(void __iomem *base, u32 pin, u32 reg)
{
u32 offset = PIN_OFFSET(pin);
void __iomem *reg_off = REG_OFFSET(base, reg, pin);
u32 val = readl_relaxed(reg_off);
return !!(val & (1 << offset));
}
static inline void plgpio_reg_set(void __iomem *base, u32 pin, u32 reg)
{
u32 offset = PIN_OFFSET(pin);
void __iomem *reg_off = REG_OFFSET(base, reg, pin);
u32 val = readl_relaxed(reg_off);
writel_relaxed(val | (1 << offset), reg_off);
}
static inline void plgpio_reg_reset(void __iomem *base, u32 pin, u32 reg)
{
u32 offset = PIN_OFFSET(pin);
void __iomem *reg_off = REG_OFFSET(base, reg, pin);
u32 val = readl_relaxed(reg_off);
writel_relaxed(val & ~(1 << offset), reg_off);
}
/* gpio framework specific routines */
static int plgpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
unsigned long flags;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & PTO_DIR_REG)) {
offset = plgpio->p2o(offset);
if (offset == -1)
return -EINVAL;
}
spin_lock_irqsave(&plgpio->lock, flags);
plgpio_reg_set(plgpio->base, offset, plgpio->regs.dir);
spin_unlock_irqrestore(&plgpio->lock, flags);
return 0;
}
static int plgpio_direction_output(struct gpio_chip *chip, unsigned offset,
int value)
{
struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
unsigned long flags;
unsigned dir_offset = offset, wdata_offset = offset, tmp;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & (PTO_DIR_REG | PTO_WDATA_REG))) {
tmp = plgpio->p2o(offset);
if (tmp == -1)
return -EINVAL;
if (plgpio->p2o_regs & PTO_DIR_REG)
dir_offset = tmp;
if (plgpio->p2o_regs & PTO_WDATA_REG)
wdata_offset = tmp;
}
spin_lock_irqsave(&plgpio->lock, flags);
if (value)
plgpio_reg_set(plgpio->base, wdata_offset,
plgpio->regs.wdata);
else
plgpio_reg_reset(plgpio->base, wdata_offset,
plgpio->regs.wdata);
plgpio_reg_reset(plgpio->base, dir_offset, plgpio->regs.dir);
spin_unlock_irqrestore(&plgpio->lock, flags);
return 0;
}
static int plgpio_get_value(struct gpio_chip *chip, unsigned offset)
{
struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
if (offset >= chip->ngpio)
return -EINVAL;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & PTO_RDATA_REG)) {
offset = plgpio->p2o(offset);
if (offset == -1)
return -EINVAL;
}
return is_plgpio_set(plgpio->base, offset, plgpio->regs.rdata);
}
static void plgpio_set_value(struct gpio_chip *chip, unsigned offset, int value)
{
struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
if (offset >= chip->ngpio)
return;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & PTO_WDATA_REG)) {
offset = plgpio->p2o(offset);
if (offset == -1)
return;
}
if (value)
plgpio_reg_set(plgpio->base, offset, plgpio->regs.wdata);
else
plgpio_reg_reset(plgpio->base, offset, plgpio->regs.wdata);
}
static int plgpio_request(struct gpio_chip *chip, unsigned offset)
{
struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
int gpio = chip->base + offset;
unsigned long flags;
int ret = 0;
if (offset >= chip->ngpio)
return -EINVAL;
ret = pinctrl_request_gpio(gpio);
if (ret)
return ret;
if (!IS_ERR(plgpio->clk)) {
ret = clk_enable(plgpio->clk);
if (ret)
goto err0;
}
if (plgpio->regs.enb == -1)
return 0;
/*
* put gpio in IN mode before enabling it. This make enabling gpio safe
*/
ret = plgpio_direction_input(chip, offset);
if (ret)
goto err1;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & PTO_ENB_REG)) {
offset = plgpio->p2o(offset);
if (offset == -1) {
ret = -EINVAL;
goto err1;
}
}
spin_lock_irqsave(&plgpio->lock, flags);
plgpio_reg_set(plgpio->base, offset, plgpio->regs.enb);
spin_unlock_irqrestore(&plgpio->lock, flags);
return 0;
err1:
if (!IS_ERR(plgpio->clk))
clk_disable(plgpio->clk);
err0:
pinctrl_free_gpio(gpio);
return ret;
}
static void plgpio_free(struct gpio_chip *chip, unsigned offset)
{
struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
int gpio = chip->base + offset;
unsigned long flags;
if (offset >= chip->ngpio)
return;
if (plgpio->regs.enb == -1)
goto disable_clk;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & PTO_ENB_REG)) {
offset = plgpio->p2o(offset);
if (offset == -1)
return;
}
spin_lock_irqsave(&plgpio->lock, flags);
plgpio_reg_reset(plgpio->base, offset, plgpio->regs.enb);
spin_unlock_irqrestore(&plgpio->lock, flags);
disable_clk:
if (!IS_ERR(plgpio->clk))
clk_disable(plgpio->clk);
pinctrl_free_gpio(gpio);
}
static int plgpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
struct plgpio *plgpio = container_of(chip, struct plgpio, chip);
if (IS_ERR_VALUE(plgpio->irq_base))
return -EINVAL;
return irq_find_mapping(plgpio->irq_domain, offset);
}
/* PLGPIO IRQ */
static void plgpio_irq_disable(struct irq_data *d)
{
struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
int offset = d->irq - plgpio->irq_base;
unsigned long flags;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & PTO_IE_REG)) {
offset = plgpio->p2o(offset);
if (offset == -1)
return;
}
spin_lock_irqsave(&plgpio->lock, flags);
plgpio_reg_set(plgpio->base, offset, plgpio->regs.ie);
spin_unlock_irqrestore(&plgpio->lock, flags);
}
static void plgpio_irq_enable(struct irq_data *d)
{
struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
int offset = d->irq - plgpio->irq_base;
unsigned long flags;
/* get correct offset for "offset" pin */
if (plgpio->p2o && (plgpio->p2o_regs & PTO_IE_REG)) {
offset = plgpio->p2o(offset);
if (offset == -1)
return;
}
spin_lock_irqsave(&plgpio->lock, flags);
plgpio_reg_reset(plgpio->base, offset, plgpio->regs.ie);
spin_unlock_irqrestore(&plgpio->lock, flags);
}
static int plgpio_irq_set_type(struct irq_data *d, unsigned trigger)
{
struct plgpio *plgpio = irq_data_get_irq_chip_data(d);
int offset = d->irq - plgpio->irq_base;
void __iomem *reg_off;
unsigned int supported_type = 0, val;
if (offset >= plgpio->chip.ngpio)
return -EINVAL;
if (plgpio->regs.eit == -1)
supported_type = IRQ_TYPE_LEVEL_HIGH;
else
supported_type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
if (!(trigger & supported_type))
return -EINVAL;
if (plgpio->regs.eit == -1)
return 0;
reg_off = REG_OFFSET(plgpio->base, plgpio->regs.eit, offset);
val = readl_relaxed(reg_off);
offset = PIN_OFFSET(offset);
if (trigger & IRQ_TYPE_EDGE_RISING)
writel_relaxed(val | (1 << offset), reg_off);
else
writel_relaxed(val & ~(1 << offset), reg_off);
return 0;
}
static struct irq_chip plgpio_irqchip = {
.name = "PLGPIO",
.irq_enable = plgpio_irq_enable,
.irq_disable = plgpio_irq_disable,
.irq_set_type = plgpio_irq_set_type,
};
static void plgpio_irq_handler(unsigned irq, struct irq_desc *desc)
{
struct plgpio *plgpio = irq_get_handler_data(irq);
struct irq_chip *irqchip = irq_desc_get_chip(desc);
int regs_count, count, pin, offset, i = 0;
unsigned long pending;
count = plgpio->chip.ngpio;
regs_count = DIV_ROUND_UP(count, MAX_GPIO_PER_REG);
chained_irq_enter(irqchip, desc);
/* check all plgpio MIS registers for a possible interrupt */
for (; i < regs_count; i++) {
pending = readl_relaxed(plgpio->base + plgpio->regs.mis +
i * sizeof(int *));
if (!pending)
continue;
/* clear interrupts */
writel_relaxed(~pending, plgpio->base + plgpio->regs.mis +
i * sizeof(int *));
/*
* clear extra bits in last register having gpios < MAX/REG
* ex: Suppose there are max 102 plgpios. then last register
* must have only (102 - MAX_GPIO_PER_REG * 3) = 6 relevant bits
* so, we must not take other 28 bits into consideration for
* checking interrupt. so clear those bits.
*/
count = count - i * MAX_GPIO_PER_REG;
if (count < MAX_GPIO_PER_REG)
pending &= (1 << count) - 1;
for_each_set_bit(offset, &pending, MAX_GPIO_PER_REG) {
/* get correct pin for "offset" */
if (plgpio->o2p && (plgpio->p2o_regs & PTO_MIS_REG)) {
pin = plgpio->o2p(offset);
if (pin == -1)
continue;
} else
pin = offset;
/* get correct irq line number */
pin = i * MAX_GPIO_PER_REG + pin;
generic_handle_irq(plgpio_to_irq(&plgpio->chip, pin));
}
}
chained_irq_exit(irqchip, desc);
}
/*
* pin to offset and offset to pin converter functions
*
* In spear310 there is inconsistency among bit positions in plgpio regiseters,
* for different plgpio pins. For example: for pin 27, bit offset is 23, pin
* 28-33 are not supported, pin 95 has offset bit 95, bit 100 has offset bit 1
*/
static int spear310_p2o(int pin)
{
int offset = pin;
if (pin <= 27)
offset += 4;
else if (pin <= 33)
offset = -1;
else if (pin <= 97)
offset -= 2;
else if (pin <= 101)
offset = 101 - pin;
else
offset = -1;
return offset;
}
int spear310_o2p(int offset)
{
if (offset <= 3)
return 101 - offset;
else if (offset <= 31)
return offset - 4;
else
return offset + 2;
}
static int __devinit plgpio_probe_dt(struct platform_device *pdev,
struct plgpio *plgpio)
{
struct device_node *np = pdev->dev.of_node;
int ret = -EINVAL;
u32 val;
if (of_machine_is_compatible("st,spear310")) {
plgpio->p2o = spear310_p2o;
plgpio->o2p = spear310_o2p;
plgpio->p2o_regs = PTO_WDATA_REG | PTO_DIR_REG | PTO_IE_REG |
PTO_RDATA_REG | PTO_MIS_REG;
}
if (!of_property_read_u32(np, "st-plgpio,ngpio", &val)) {
plgpio->chip.ngpio = val;
} else {
dev_err(&pdev->dev, "DT: Invalid ngpio field\n");
goto end;
}
if (!of_property_read_u32(np, "st-plgpio,enb-reg", &val))
plgpio->regs.enb = val;
else
plgpio->regs.enb = -1;
if (!of_property_read_u32(np, "st-plgpio,wdata-reg", &val)) {
plgpio->regs.wdata = val;
} else {
dev_err(&pdev->dev, "DT: Invalid wdata reg\n");
goto end;
}
if (!of_property_read_u32(np, "st-plgpio,dir-reg", &val)) {
plgpio->regs.dir = val;
} else {
dev_err(&pdev->dev, "DT: Invalid dir reg\n");
goto end;
}
if (!of_property_read_u32(np, "st-plgpio,ie-reg", &val)) {
plgpio->regs.ie = val;
} else {
dev_err(&pdev->dev, "DT: Invalid ie reg\n");
goto end;
}
if (!of_property_read_u32(np, "st-plgpio,rdata-reg", &val)) {
plgpio->regs.rdata = val;
} else {
dev_err(&pdev->dev, "DT: Invalid rdata reg\n");
goto end;
}
if (!of_property_read_u32(np, "st-plgpio,mis-reg", &val)) {
plgpio->regs.mis = val;
} else {
dev_err(&pdev->dev, "DT: Invalid mis reg\n");
goto end;
}
if (!of_property_read_u32(np, "st-plgpio,eit-reg", &val))
plgpio->regs.eit = val;
else
plgpio->regs.eit = -1;
return 0;
end:
return ret;
}
static int __devinit plgpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct plgpio *plgpio;
struct resource *res;
int ret, irq, i;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "invalid IORESOURCE_MEM\n");
return -EBUSY;
}
plgpio = devm_kzalloc(&pdev->dev, sizeof(*plgpio), GFP_KERNEL);
if (!plgpio) {
dev_err(&pdev->dev, "memory allocation fail\n");
return -ENOMEM;
}
plgpio->base = devm_request_and_ioremap(&pdev->dev, res);
if (!plgpio->base) {
dev_err(&pdev->dev, "request and ioremap fail\n");
return -ENOMEM;
}
ret = plgpio_probe_dt(pdev, plgpio);
if (ret) {
dev_err(&pdev->dev, "DT probe failed\n");
return ret;
}
plgpio->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(plgpio->clk))
dev_warn(&pdev->dev, "clk_get() failed, work without it\n");
#ifdef CONFIG_PM
plgpio->csave_regs = devm_kzalloc(&pdev->dev,
sizeof(*plgpio->csave_regs) *
DIV_ROUND_UP(plgpio->chip.ngpio, MAX_GPIO_PER_REG),
GFP_KERNEL);
if (!plgpio->csave_regs) {
dev_err(&pdev->dev, "csave registers memory allocation fail\n");
return -ENOMEM;
}
#endif
platform_set_drvdata(pdev, plgpio);
spin_lock_init(&plgpio->lock);
plgpio->irq_base = -1;
plgpio->chip.base = -1;
plgpio->chip.request = plgpio_request;
plgpio->chip.free = plgpio_free;
plgpio->chip.direction_input = plgpio_direction_input;
plgpio->chip.direction_output = plgpio_direction_output;
plgpio->chip.get = plgpio_get_value;
plgpio->chip.set = plgpio_set_value;
plgpio->chip.to_irq = plgpio_to_irq;
plgpio->chip.label = dev_name(&pdev->dev);
plgpio->chip.dev = &pdev->dev;
plgpio->chip.owner = THIS_MODULE;
if (!IS_ERR(plgpio->clk)) {
ret = clk_prepare(plgpio->clk);
if (ret) {
dev_err(&pdev->dev, "clk prepare failed\n");
return ret;
}
}
ret = gpiochip_add(&plgpio->chip);
if (ret) {
dev_err(&pdev->dev, "unable to add gpio chip\n");
goto unprepare_clk;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_info(&pdev->dev, "irqs not supported\n");
return 0;
}
plgpio->irq_base = irq_alloc_descs(-1, 0, plgpio->chip.ngpio, 0);
if (IS_ERR_VALUE(plgpio->irq_base)) {
/* we would not support irq for gpio */
dev_warn(&pdev->dev, "couldn't allocate irq base\n");
return 0;
}
plgpio->irq_domain = irq_domain_add_legacy(np, plgpio->chip.ngpio,
plgpio->irq_base, 0, &irq_domain_simple_ops, NULL);
if (WARN_ON(!plgpio->irq_domain)) {
dev_err(&pdev->dev, "irq domain init failed\n");
irq_free_descs(plgpio->irq_base, plgpio->chip.ngpio);
ret = -ENXIO;
goto remove_gpiochip;
}
irq_set_chained_handler(irq, plgpio_irq_handler);
for (i = 0; i < plgpio->chip.ngpio; i++) {
irq_set_chip_and_handler(i + plgpio->irq_base, &plgpio_irqchip,
handle_simple_irq);
set_irq_flags(i + plgpio->irq_base, IRQF_VALID);
irq_set_chip_data(i + plgpio->irq_base, plgpio);
}
irq_set_handler_data(irq, plgpio);
dev_info(&pdev->dev, "PLGPIO registered with IRQs\n");
return 0;
remove_gpiochip:
dev_info(&pdev->dev, "Remove gpiochip\n");
if (gpiochip_remove(&plgpio->chip))
dev_err(&pdev->dev, "unable to remove gpiochip\n");
unprepare_clk:
if (!IS_ERR(plgpio->clk))
clk_unprepare(plgpio->clk);
return ret;
}
#ifdef CONFIG_PM
static int plgpio_suspend(struct device *dev)
{
struct plgpio *plgpio = dev_get_drvdata(dev);
int i, reg_count = DIV_ROUND_UP(plgpio->chip.ngpio, MAX_GPIO_PER_REG);
void __iomem *off;
for (i = 0; i < reg_count; i++) {
off = plgpio->base + i * sizeof(int *);
if (plgpio->regs.enb != -1)
plgpio->csave_regs[i].enb =
readl_relaxed(plgpio->regs.enb + off);
if (plgpio->regs.eit != -1)
plgpio->csave_regs[i].eit =
readl_relaxed(plgpio->regs.eit + off);
plgpio->csave_regs[i].wdata = readl_relaxed(plgpio->regs.wdata +
off);
plgpio->csave_regs[i].dir = readl_relaxed(plgpio->regs.dir +
off);
plgpio->csave_regs[i].ie = readl_relaxed(plgpio->regs.ie + off);
}
return 0;
}
/*
* This is used to correct the values in end registers. End registers contain
* extra bits that might be used for other purpose in platform. So, we shouldn't
* overwrite these bits. This macro, reads given register again, preserves other
* bit values (non-plgpio bits), and retain captured value (plgpio bits).
*/
#define plgpio_prepare_reg(__reg, _off, _mask, _tmp) \
{ \
_tmp = readl_relaxed(plgpio->regs.__reg + _off); \
_tmp &= ~_mask; \
plgpio->csave_regs[i].__reg = \
_tmp | (plgpio->csave_regs[i].__reg & _mask); \
}
static int plgpio_resume(struct device *dev)
{
struct plgpio *plgpio = dev_get_drvdata(dev);
int i, reg_count = DIV_ROUND_UP(plgpio->chip.ngpio, MAX_GPIO_PER_REG);
void __iomem *off;
u32 mask, tmp;
for (i = 0; i < reg_count; i++) {
off = plgpio->base + i * sizeof(int *);
if (i == reg_count - 1) {
mask = (1 << (plgpio->chip.ngpio - i *
MAX_GPIO_PER_REG)) - 1;
if (plgpio->regs.enb != -1)
plgpio_prepare_reg(enb, off, mask, tmp);
if (plgpio->regs.eit != -1)
plgpio_prepare_reg(eit, off, mask, tmp);
plgpio_prepare_reg(wdata, off, mask, tmp);
plgpio_prepare_reg(dir, off, mask, tmp);
plgpio_prepare_reg(ie, off, mask, tmp);
}
writel_relaxed(plgpio->csave_regs[i].wdata, plgpio->regs.wdata +
off);
writel_relaxed(plgpio->csave_regs[i].dir, plgpio->regs.dir +
off);
if (plgpio->regs.eit != -1)
writel_relaxed(plgpio->csave_regs[i].eit,
plgpio->regs.eit + off);
writel_relaxed(plgpio->csave_regs[i].ie, plgpio->regs.ie + off);
if (plgpio->regs.enb != -1)
writel_relaxed(plgpio->csave_regs[i].enb,
plgpio->regs.enb + off);
}
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(plgpio_dev_pm_ops, plgpio_suspend, plgpio_resume);
static const struct of_device_id plgpio_of_match[] = {
{ .compatible = "st,spear-plgpio" },
{}
};
MODULE_DEVICE_TABLE(of, plgpio_of_match);
static struct platform_driver plgpio_driver = {
.probe = plgpio_probe,
.driver = {
.owner = THIS_MODULE,
.name = "spear-plgpio",
.pm = &plgpio_dev_pm_ops,
.of_match_table = of_match_ptr(plgpio_of_match),
},
};
static int __init plgpio_init(void)
{
return platform_driver_register(&plgpio_driver);
}
subsys_initcall(plgpio_init);
MODULE_AUTHOR("Viresh Kumar <[email protected]>");
MODULE_DESCRIPTION("ST Microlectronics SPEAr PLGPIO driver");
MODULE_LICENSE("GPL");

131
drivers/pinctrl/spear/pinctrl-spear.c
View file

@ -14,10 +14,10 @@
*/
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_gpio.h>
#include <linux/pinctrl/machine.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
@ -28,14 +28,26 @@
#define DRIVER_NAME "spear-pinmux"
static inline u32 pmx_readl(struct spear_pmx *pmx, u32 reg)
static void muxregs_endisable(struct spear_pmx *pmx,
struct spear_muxreg *muxregs, u8 count, bool enable)
{
return readl_relaxed(pmx->vbase + reg);
}
struct spear_muxreg *muxreg;
u32 val, temp, j;
static inline void pmx_writel(struct spear_pmx *pmx, u32 val, u32 reg)
{
writel_relaxed(val, pmx->vbase + reg);
for (j = 0; j < count; j++) {
muxreg = &muxregs[j];
val = pmx_readl(pmx, muxreg->reg);
val &= ~muxreg->mask;
if (enable)
temp = muxreg->val;
else
temp = ~muxreg->val;
val |= muxreg->mask & temp;
pmx_writel(pmx, val, muxreg->reg);
}
}
static int set_mode(struct spear_pmx *pmx, int mode)
@ -70,6 +82,17 @@ static int set_mode(struct spear_pmx *pmx, int mode)
return 0;
}
void __devinit
pmx_init_gpio_pingroup_addr(struct spear_gpio_pingroup *gpio_pingroup,
unsigned count, u16 reg)
{
int i, j;
for (i = 0; i < count; i++)
for (j = 0; j < gpio_pingroup[i].nmuxregs; j++)
gpio_pingroup[i].muxregs[j].reg = reg;
}
void __devinit pmx_init_addr(struct spear_pinctrl_machdata *machdata, u16 reg)
{
struct spear_pingroup *pgroup;
@ -121,9 +144,10 @@ static void spear_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev,
seq_printf(s, " " DRIVER_NAME);
}
int spear_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
struct device_node *np_config,
struct pinctrl_map **map, unsigned *num_maps)
static int spear_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
struct device_node *np_config,
struct pinctrl_map **map,
unsigned *num_maps)
{
struct spear_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
struct device_node *np;
@ -168,8 +192,9 @@ int spear_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
return 0;
}
void spear_pinctrl_dt_free_map(struct pinctrl_dev *pctldev,
struct pinctrl_map *map, unsigned num_maps)
static void spear_pinctrl_dt_free_map(struct pinctrl_dev *pctldev,
struct pinctrl_map *map,
unsigned num_maps)
{
kfree(map);
}
@ -216,9 +241,7 @@ static int spear_pinctrl_endisable(struct pinctrl_dev *pctldev,
struct spear_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
const struct spear_pingroup *pgroup;
const struct spear_modemux *modemux;
struct spear_muxreg *muxreg;
u32 val, temp;
int i, j;
int i;
bool found = false;
pgroup = pmx->machdata->groups[group];
@ -233,20 +256,8 @@ static int spear_pinctrl_endisable(struct pinctrl_dev *pctldev,
}
found = true;
for (j = 0; j < modemux->nmuxregs; j++) {
muxreg = &modemux->muxregs[j];
val = pmx_readl(pmx, muxreg->reg);
val &= ~muxreg->mask;
if (enable)
temp = muxreg->val;
else
temp = ~muxreg->val;
val |= muxreg->mask & temp;
pmx_writel(pmx, val, muxreg->reg);
}
muxregs_endisable(pmx, modemux->muxregs, modemux->nmuxregs,
enable);
}
if (!found) {
@ -270,12 +281,74 @@ static void spear_pinctrl_disable(struct pinctrl_dev *pctldev,
spear_pinctrl_endisable(pctldev, function, group, false);
}
/* gpio with pinmux */
static struct spear_gpio_pingroup *get_gpio_pingroup(struct spear_pmx *pmx,
unsigned pin)
{
struct spear_gpio_pingroup *gpio_pingroup;
int i, j;
if (!pmx->machdata->gpio_pingroups)
return NULL;
for (i = 0; i < pmx->machdata->ngpio_pingroups; i++) {
gpio_pingroup = &pmx->machdata->gpio_pingroups[i];
for (j = 0; j < gpio_pingroup->npins; j++) {
if (gpio_pingroup->pins[j] == pin)
return gpio_pingroup;
}
}
return NULL;
}
static int gpio_request_endisable(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range, unsigned offset, bool enable)
{
struct spear_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
struct spear_pinctrl_machdata *machdata = pmx->machdata;
struct spear_gpio_pingroup *gpio_pingroup;
/*
* Some SoC have configuration options applicable to group of pins,
* rather than a single pin.
*/
gpio_pingroup = get_gpio_pingroup(pmx, offset);
if (gpio_pingroup)
muxregs_endisable(pmx, gpio_pingroup->muxregs,
gpio_pingroup->nmuxregs, enable);
/*
* SoC may need some extra configurations, or configurations for single
* pin
*/
if (machdata->gpio_request_endisable)
machdata->gpio_request_endisable(pmx, offset, enable);
return 0;
}
static int gpio_request_enable(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range, unsigned offset)
{
return gpio_request_endisable(pctldev, range, offset, true);
}
static void gpio_disable_free(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range, unsigned offset)
{
gpio_request_endisable(pctldev, range, offset, false);
}
static struct pinmux_ops spear_pinmux_ops = {
.get_functions_count = spear_pinctrl_get_funcs_count,
.get_function_name = spear_pinctrl_get_func_name,
.get_function_groups = spear_pinctrl_get_func_groups,
.enable = spear_pinctrl_enable,
.disable = spear_pinctrl_disable,
.gpio_request_enable = gpio_request_enable,
.gpio_disable_free = gpio_disable_free,
};
static struct pinctrl_desc spear_pinctrl_desc = {

60
drivers/pinctrl/spear/pinctrl-spear.h
View file

@ -12,11 +12,14 @@
#ifndef __PINMUX_SPEAR_H__
#define __PINMUX_SPEAR_H__
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/types.h>
struct platform_device;
struct device;
struct spear_pmx;
/**
* struct spear_pmx_mode - SPEAr pmx mode
@ -46,6 +49,44 @@ struct spear_muxreg {
u32 val;
};
struct spear_gpio_pingroup {
const unsigned *pins;
unsigned npins;
struct spear_muxreg *muxregs;
u8 nmuxregs;
};
/* ste: set to enable */
#define DEFINE_MUXREG(__pins, __muxreg, __mask, __ste) \
static struct spear_muxreg __pins##_muxregs[] = { \
{ \
.reg = __muxreg, \
.mask = __mask, \
.val = __ste ? __mask : 0, \
}, \
}
#define DEFINE_2_MUXREG(__pins, __muxreg1, __muxreg2, __mask, __ste1, __ste2) \
static struct spear_muxreg __pins##_muxregs[] = { \
{ \
.reg = __muxreg1, \
.mask = __mask, \
.val = __ste1 ? __mask : 0, \
}, { \
.reg = __muxreg2, \
.mask = __mask, \
.val = __ste2 ? __mask : 0, \
}, \
}
#define GPIO_PINGROUP(__pins) \
{ \
.pins = __pins, \
.npins = ARRAY_SIZE(__pins), \
.muxregs = __pins##_muxregs, \
.nmuxregs = ARRAY_SIZE(__pins##_muxregs), \
}
/**
* struct spear_modemux - SPEAr mode mux configuration
* @modes: mode ids supported by this group of muxregs
@ -100,6 +141,8 @@ struct spear_function {
* @nfunctions: The numbmer of entries in @functions.
* @groups: An array describing all pin groups the pin SoC supports.
* @ngroups: The numbmer of entries in @groups.
* @gpio_pingroups: gpio pingroups
* @ngpio_pingroups: gpio pingroups count
*
* @modes_supported: Does SoC support modes
* @mode: mode configured from probe
@ -113,6 +156,10 @@ struct spear_pinctrl_machdata {
unsigned nfunctions;
struct spear_pingroup **groups;
unsigned ngroups;
struct spear_gpio_pingroup *gpio_pingroups;
void (*gpio_request_endisable)(struct spear_pmx *pmx, int offset,
bool enable);
unsigned ngpio_pingroups;
bool modes_supported;
u16 mode;
@ -135,7 +182,20 @@ struct spear_pmx {
};
/* exported routines */
static inline u32 pmx_readl(struct spear_pmx *pmx, u32 reg)
{
return readl_relaxed(pmx->vbase + reg);
}
static inline void pmx_writel(struct spear_pmx *pmx, u32 val, u32 reg)
{
writel_relaxed(val, pmx->vbase + reg);
}
void __devinit pmx_init_addr(struct spear_pinctrl_machdata *machdata, u16 reg);
void __devinit
pmx_init_gpio_pingroup_addr(struct spear_gpio_pingroup *gpio_pingroup,
unsigned count, u16 reg);
int __devinit spear_pinctrl_probe(struct platform_device *pdev,
struct spear_pinctrl_machdata *machdata);
int __devexit spear_pinctrl_remove(struct platform_device *pdev);

264
drivers/pinctrl/spear/pinctrl-spear1310.c
View file

@ -2418,6 +2418,268 @@ static struct spear_function *spear1310_functions[] = {
&gpt64_function,
};
static const unsigned pin18[] = { 18, };
static const unsigned pin19[] = { 19, };
static const unsigned pin20[] = { 20, };
static const unsigned pin21[] = { 21, };
static const unsigned pin22[] = { 22, };
static const unsigned pin23[] = { 23, };
static const unsigned pin54[] = { 54, };
static const unsigned pin55[] = { 55, };
static const unsigned pin56[] = { 56, };
static const unsigned pin57[] = { 57, };
static const unsigned pin58[] = { 58, };
static const unsigned pin59[] = { 59, };
static const unsigned pin60[] = { 60, };
static const unsigned pin61[] = { 61, };
static const unsigned pin62[] = { 62, };
static const unsigned pin63[] = { 63, };
static const unsigned pin143[] = { 143, };
static const unsigned pin144[] = { 144, };
static const unsigned pin145[] = { 145, };
static const unsigned pin146[] = { 146, };
static const unsigned pin147[] = { 147, };
static const unsigned pin148[] = { 148, };
static const unsigned pin149[] = { 149, };
static const unsigned pin150[] = { 150, };
static const unsigned pin151[] = { 151, };
static const unsigned pin152[] = { 152, };
static const unsigned pin205[] = { 205, };
static const unsigned pin206[] = { 206, };
static const unsigned pin211[] = { 211, };
static const unsigned pin212[] = { 212, };
static const unsigned pin213[] = { 213, };
static const unsigned pin214[] = { 214, };
static const unsigned pin215[] = { 215, };
static const unsigned pin216[] = { 216, };
static const unsigned pin217[] = { 217, };
static const unsigned pin218[] = { 218, };
static const unsigned pin219[] = { 219, };
static const unsigned pin220[] = { 220, };
static const unsigned pin221[] = { 221, };
static const unsigned pin222[] = { 222, };
static const unsigned pin223[] = { 223, };
static const unsigned pin224[] = { 224, };
static const unsigned pin225[] = { 225, };
static const unsigned pin226[] = { 226, };
static const unsigned pin227[] = { 227, };
static const unsigned pin228[] = { 228, };
static const unsigned pin229[] = { 229, };
static const unsigned pin230[] = { 230, };
static const unsigned pin231[] = { 231, };
static const unsigned pin232[] = { 232, };
static const unsigned pin233[] = { 233, };
static const unsigned pin234[] = { 234, };
static const unsigned pin235[] = { 235, };
static const unsigned pin236[] = { 236, };
static const unsigned pin237[] = { 237, };
static const unsigned pin238[] = { 238, };
static const unsigned pin239[] = { 239, };
static const unsigned pin240[] = { 240, };
static const unsigned pin241[] = { 241, };
static const unsigned pin242[] = { 242, };
static const unsigned pin243[] = { 243, };
static const unsigned pin244[] = { 244, };
static const unsigned pin245[] = { 245, };
static const unsigned pin_grp0[] = { 173, 174, };
static const unsigned pin_grp1[] = { 175, 185, 188, 197, 198, };
static const unsigned pin_grp2[] = { 176, 177, 178, 179, 184, 186, 187, 189,
190, 191, 192, };
static const unsigned pin_grp3[] = { 180, 181, 182, 183, 193, 194, 195, 196, };
static const unsigned pin_grp4[] = { 199, 200, };
static const unsigned pin_grp5[] = { 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, };
static const unsigned pin_grp6[] = { 86, 87, 88, 89, 90, 91, 92, 93, };
static const unsigned pin_grp7[] = { 98, 99, };
static const unsigned pin_grp8[] = { 158, 159, 160, 161, 162, 163, 164, 165,
166, 167, 168, 169, 170, 171, 172, };
/* Define muxreg arrays */
DEFINE_2_MUXREG(i2c0_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_I2C0_MASK, 0, 1);
DEFINE_2_MUXREG(ssp0_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_SSP0_MASK, 0, 1);
DEFINE_2_MUXREG(ssp0_cs0_pins, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_SSP0_CS0_MASK, 0, 1);
DEFINE_2_MUXREG(ssp0_cs1_2_pins, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_SSP0_CS1_2_MASK, 0, 1);
DEFINE_2_MUXREG(i2s0_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_I2S0_MASK, 0, 1);
DEFINE_2_MUXREG(i2s1_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_I2S1_MASK, 0, 1);
DEFINE_2_MUXREG(clcd_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_CLCD1_MASK, 0, 1);
DEFINE_2_MUXREG(clcd_high_res_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_CLCD2_MASK, 0, 1);
DEFINE_2_MUXREG(pin18, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO15_MASK, 0, 1);
DEFINE_2_MUXREG(pin19, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO14_MASK, 0, 1);
DEFINE_2_MUXREG(pin20, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO13_MASK, 0, 1);
DEFINE_2_MUXREG(pin21, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO12_MASK, 0, 1);
DEFINE_2_MUXREG(pin22, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO11_MASK, 0, 1);
DEFINE_2_MUXREG(pin23, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO10_MASK, 0, 1);
DEFINE_2_MUXREG(pin143, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO00_MASK, 0, 1);
DEFINE_2_MUXREG(pin144, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO01_MASK, 0, 1);
DEFINE_2_MUXREG(pin145, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO02_MASK, 0, 1);
DEFINE_2_MUXREG(pin146, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO03_MASK, 0, 1);
DEFINE_2_MUXREG(pin147, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO04_MASK, 0, 1);
DEFINE_2_MUXREG(pin148, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO05_MASK, 0, 1);
DEFINE_2_MUXREG(pin149, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO06_MASK, 0, 1);
DEFINE_2_MUXREG(pin150, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO07_MASK, 0, 1);
DEFINE_2_MUXREG(pin151, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO08_MASK, 0, 1);
DEFINE_2_MUXREG(pin152, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_EGPIO09_MASK, 0, 1);
DEFINE_2_MUXREG(smi_2_chips_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_SMI_MASK, 0, 1);
DEFINE_2_MUXREG(pin54, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_SMINCS3_MASK, 0, 1);
DEFINE_2_MUXREG(pin55, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_SMINCS2_MASK, 0, 1);
DEFINE_2_MUXREG(pin56, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_NFRSTPWDWN3_MASK, 0, 1);
DEFINE_2_MUXREG(pin57, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFRSTPWDWN2_MASK, 0, 1);
DEFINE_2_MUXREG(pin58, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFRSTPWDWN1_MASK, 0, 1);
DEFINE_2_MUXREG(pin59, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFRSTPWDWN0_MASK, 0, 1);
DEFINE_2_MUXREG(pin60, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFWPRT3_MASK, 0, 1);
DEFINE_2_MUXREG(pin61, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFCE3_MASK, 0, 1);
DEFINE_2_MUXREG(pin62, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFAD25_MASK, 0, 1);
DEFINE_2_MUXREG(pin63, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFAD24_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp0, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_GMIICLK_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp1, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_GMIICOL_CRS_XFERER_MIITXCLK_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp2, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_RXCLK_RDV_TXEN_D03_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp3, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_GMIID47_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp4, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_MDC_MDIO_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp5, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_NFAD23_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp6, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_MCI_DATA8_15_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp7, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_NFCE2_MASK, 0, 1);
DEFINE_2_MUXREG(pin_grp8, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_NAND8_MASK, 0, 1);
DEFINE_2_MUXREG(nand_16bit_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_NAND16BIT_1_MASK, 0, 1);
DEFINE_2_MUXREG(pin205, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_COL1_MASK | PMX_NFCE1_MASK, 0, 1);
DEFINE_2_MUXREG(pin206, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_COL0_MASK | PMX_NFCE2_MASK, 0, 1);
DEFINE_2_MUXREG(pin211, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_ROW1_MASK | PMX_NFWPRT1_MASK, 0, 1);
DEFINE_2_MUXREG(pin212, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_ROW0_MASK | PMX_NFWPRT2_MASK, 0, 1);
DEFINE_2_MUXREG(pin213, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA0_MASK, 0, 1);
DEFINE_2_MUXREG(pin214, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA1_MASK, 0, 1);
DEFINE_2_MUXREG(pin215, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA2_MASK, 0, 1);
DEFINE_2_MUXREG(pin216, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA3_MASK, 0, 1);
DEFINE_2_MUXREG(pin217, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_MCIDATA4_MASK, 0, 1);
DEFINE_2_MUXREG(pin218, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA5_MASK, 0, 1);
DEFINE_2_MUXREG(pin219, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA6_MASK, 0, 1);
DEFINE_2_MUXREG(pin220, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA7_MASK, 0, 1);
DEFINE_2_MUXREG(pin221, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA1SD_MASK, 0, 1);
DEFINE_2_MUXREG(pin222, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA2SD_MASK, 0, 1);
DEFINE_2_MUXREG(pin223, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATA3SD_MASK, 0, 1);
DEFINE_2_MUXREG(pin224, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIADDR0ALE_MASK, 0, 1);
DEFINE_2_MUXREG(pin225, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIADDR1CLECLK_MASK, 0, 1);
DEFINE_2_MUXREG(pin226, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIADDR2_MASK, 0, 1);
DEFINE_2_MUXREG(pin227, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICECF_MASK, 0, 1);
DEFINE_2_MUXREG(pin228, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICEXD_MASK, 0, 1);
DEFINE_2_MUXREG(pin229, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICESDMMC_MASK, 0, 1);
DEFINE_2_MUXREG(pin230, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICDCF1_MASK, 0, 1);
DEFINE_2_MUXREG(pin231, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICDCF2_MASK, 0, 1);
DEFINE_2_MUXREG(pin232, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICDXD_MASK, 0, 1);
DEFINE_2_MUXREG(pin233, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICDSDMMC_MASK, 0, 1);
DEFINE_2_MUXREG(pin234, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDATADIR_MASK, 0, 1);
DEFINE_2_MUXREG(pin235, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDMARQWP_MASK, 0, 1);
DEFINE_2_MUXREG(pin236, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIIORDRE_MASK, 0, 1);
DEFINE_2_MUXREG(pin237, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIIOWRWE_MASK, 0, 1);
DEFINE_2_MUXREG(pin238, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIRESETCF_MASK, 0, 1);
DEFINE_2_MUXREG(pin239, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICS0CE_MASK, 0, 1);
DEFINE_2_MUXREG(pin240, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICFINTR_MASK, 0, 1);
DEFINE_2_MUXREG(pin241, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIIORDY_MASK, 0, 1);
DEFINE_2_MUXREG(pin242, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCICS1_MASK, 0, 1);
DEFINE_2_MUXREG(pin243, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCIDMAACK_MASK, 0, 1);
DEFINE_2_MUXREG(pin244, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCISDCMD_MASK, 0, 1);
DEFINE_2_MUXREG(pin245, PAD_FUNCTION_EN_2, PAD_DIRECTION_SEL_2, PMX_MCILEDS_MASK, 0, 1);
DEFINE_2_MUXREG(keyboard_rowcol6_8_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_KBD_ROWCOL68_MASK, 0, 1);
DEFINE_2_MUXREG(uart0_pins, PAD_FUNCTION_EN_0, PAD_DIRECTION_SEL_0, PMX_UART0_MASK, 0, 1);
DEFINE_2_MUXREG(uart0_modem_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_UART0_MODEM_MASK, 0, 1);
DEFINE_2_MUXREG(gpt0_tmr0_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_GPT0_TMR0_MASK, 0, 1);
DEFINE_2_MUXREG(gpt0_tmr1_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_GPT0_TMR1_MASK, 0, 1);
DEFINE_2_MUXREG(gpt1_tmr0_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_GPT1_TMR0_MASK, 0, 1);
DEFINE_2_MUXREG(gpt1_tmr1_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_GPT1_TMR1_MASK, 0, 1);
DEFINE_2_MUXREG(touch_xy_pins, PAD_FUNCTION_EN_1, PAD_DIRECTION_SEL_1, PMX_TOUCH_XY_MASK, 0, 1);
static struct spear_gpio_pingroup spear1310_gpio_pingroup[] = {
GPIO_PINGROUP(i2c0_pins),
GPIO_PINGROUP(ssp0_pins),
GPIO_PINGROUP(ssp0_cs0_pins),
GPIO_PINGROUP(ssp0_cs1_2_pins),
GPIO_PINGROUP(i2s0_pins),
GPIO_PINGROUP(i2s1_pins),
GPIO_PINGROUP(clcd_pins),
GPIO_PINGROUP(clcd_high_res_pins),
GPIO_PINGROUP(pin18),
GPIO_PINGROUP(pin19),
GPIO_PINGROUP(pin20),
GPIO_PINGROUP(pin21),
GPIO_PINGROUP(pin22),
GPIO_PINGROUP(pin23),
GPIO_PINGROUP(pin143),
GPIO_PINGROUP(pin144),
GPIO_PINGROUP(pin145),
GPIO_PINGROUP(pin146),
GPIO_PINGROUP(pin147),
GPIO_PINGROUP(pin148),
GPIO_PINGROUP(pin149),
GPIO_PINGROUP(pin150),
GPIO_PINGROUP(pin151),
GPIO_PINGROUP(pin152),
GPIO_PINGROUP(smi_2_chips_pins),
GPIO_PINGROUP(pin54),
GPIO_PINGROUP(pin55),
GPIO_PINGROUP(pin56),
GPIO_PINGROUP(pin57),
GPIO_PINGROUP(pin58),
GPIO_PINGROUP(pin59),
GPIO_PINGROUP(pin60),
GPIO_PINGROUP(pin61),
GPIO_PINGROUP(pin62),
GPIO_PINGROUP(pin63),
GPIO_PINGROUP(pin_grp0),
GPIO_PINGROUP(pin_grp1),
GPIO_PINGROUP(pin_grp2),
GPIO_PINGROUP(pin_grp3),
GPIO_PINGROUP(pin_grp4),
GPIO_PINGROUP(pin_grp5),
GPIO_PINGROUP(pin_grp6),
GPIO_PINGROUP(pin_grp7),
GPIO_PINGROUP(pin_grp8),
GPIO_PINGROUP(nand_16bit_pins),
GPIO_PINGROUP(pin205),
GPIO_PINGROUP(pin206),
GPIO_PINGROUP(pin211),
GPIO_PINGROUP(pin212),
GPIO_PINGROUP(pin213),
GPIO_PINGROUP(pin214),
GPIO_PINGROUP(pin215),
GPIO_PINGROUP(pin216),
GPIO_PINGROUP(pin217),
GPIO_PINGROUP(pin218),
GPIO_PINGROUP(pin219),
GPIO_PINGROUP(pin220),
GPIO_PINGROUP(pin221),
GPIO_PINGROUP(pin222),
GPIO_PINGROUP(pin223),
GPIO_PINGROUP(pin224),
GPIO_PINGROUP(pin225),
GPIO_PINGROUP(pin226),
GPIO_PINGROUP(pin227),
GPIO_PINGROUP(pin228),
GPIO_PINGROUP(pin229),
GPIO_PINGROUP(pin230),
GPIO_PINGROUP(pin231),
GPIO_PINGROUP(pin232),
GPIO_PINGROUP(pin233),
GPIO_PINGROUP(pin234),
GPIO_PINGROUP(pin235),
GPIO_PINGROUP(pin236),
GPIO_PINGROUP(pin237),
GPIO_PINGROUP(pin238),
GPIO_PINGROUP(pin239),
GPIO_PINGROUP(pin240),
GPIO_PINGROUP(pin241),
GPIO_PINGROUP(pin242),
GPIO_PINGROUP(pin243),
GPIO_PINGROUP(pin244),
GPIO_PINGROUP(pin245),
GPIO_PINGROUP(keyboard_rowcol6_8_pins),
GPIO_PINGROUP(uart0_pins),
GPIO_PINGROUP(uart0_modem_pins),
GPIO_PINGROUP(gpt0_tmr0_pins),
GPIO_PINGROUP(gpt0_tmr1_pins),
GPIO_PINGROUP(gpt1_tmr0_pins),
GPIO_PINGROUP(gpt1_tmr1_pins),
GPIO_PINGROUP(touch_xy_pins),
};
static struct spear_pinctrl_machdata spear1310_machdata = {
.pins = spear1310_pins,
.npins = ARRAY_SIZE(spear1310_pins),
@ -2425,6 +2687,8 @@ static struct spear_pinctrl_machdata spear1310_machdata = {
.ngroups = ARRAY_SIZE(spear1310_pingroups),
.functions = spear1310_functions,
.nfunctions = ARRAY_SIZE(spear1310_functions),
.gpio_pingroups = spear1310_gpio_pingroup,
.ngpio_pingroups = ARRAY_SIZE(spear1310_gpio_pingroup),
.modes_supported = false,
};

27
drivers/pinctrl/spear/pinctrl-spear1340.c
View file

@ -1971,6 +1971,32 @@ static struct spear_function *spear1340_functions[] = {
&sata_function,
};
static void gpio_request_endisable(struct spear_pmx *pmx, int pin,
bool enable)
{
unsigned int regoffset, regindex, bitoffset;
unsigned int val;
/* pin++ as gpio configuration starts from 2nd bit of base register */
pin++;
regindex = pin / 32;
bitoffset = pin % 32;
if (regindex <= 3)
regoffset = PAD_FUNCTION_EN_1 + regindex * sizeof(int *);
else
regoffset = PAD_FUNCTION_EN_5 + (regindex - 4) * sizeof(int *);
val = pmx_readl(pmx, regoffset);
if (enable)
val &= ~(0x1 << bitoffset);
else
val |= 0x1 << bitoffset;
pmx_writel(pmx, val, regoffset);
}
static struct spear_pinctrl_machdata spear1340_machdata = {
.pins = spear1340_pins,
.npins = ARRAY_SIZE(spear1340_pins),
@ -1978,6 +2004,7 @@ static struct spear_pinctrl_machdata spear1340_machdata = {
.ngroups = ARRAY_SIZE(spear1340_pingroups),
.functions = spear1340_functions,
.nfunctions = ARRAY_SIZE(spear1340_functions),
.gpio_request_endisable = gpio_request_endisable,
.modes_supported = false,
};

2
drivers/pinctrl/spear/pinctrl-spear300.c
View file

@ -661,6 +661,8 @@ static int __devinit spear300_pinctrl_probe(struct platform_device *pdev)
spear3xx_machdata.ngroups = ARRAY_SIZE(spear300_pingroups);
spear3xx_machdata.functions = spear300_functions;
spear3xx_machdata.nfunctions = ARRAY_SIZE(spear300_functions);
spear3xx_machdata.gpio_pingroups = NULL;
spear3xx_machdata.ngpio_pingroups = 0;
spear3xx_machdata.modes_supported = true;
spear3xx_machdata.pmx_modes = spear300_pmx_modes;

2
drivers/pinctrl/spear/pinctrl-spear310.c
View file

@ -388,6 +388,8 @@ static int __devinit spear310_pinctrl_probe(struct platform_device *pdev)
spear3xx_machdata.nfunctions = ARRAY_SIZE(spear310_functions);
pmx_init_addr(&spear3xx_machdata, PMX_CONFIG_REG);
pmx_init_gpio_pingroup_addr(spear3xx_machdata.gpio_pingroups,
spear3xx_machdata.ngpio_pingroups, PMX_CONFIG_REG);
spear3xx_machdata.modes_supported = false;

2
drivers/pinctrl/spear/pinctrl-spear320.c
View file

@ -3431,6 +3431,8 @@ static int __devinit spear320_pinctrl_probe(struct platform_device *pdev)
spear3xx_machdata.npmx_modes = ARRAY_SIZE(spear320_pmx_modes);
pmx_init_addr(&spear3xx_machdata, PMX_CONFIG_REG);
pmx_init_gpio_pingroup_addr(spear3xx_machdata.gpio_pingroups,
spear3xx_machdata.ngpio_pingroups, PMX_CONFIG_REG);
ret = spear_pinctrl_probe(pdev, &spear3xx_machdata);
if (ret)

37
drivers/pinctrl/spear/pinctrl-spear3xx.c
View file

@ -481,7 +481,44 @@ struct spear_function spear3xx_timer_2_3_function = {
.ngroups = ARRAY_SIZE(timer_2_3_grps),
};
/* Define muxreg arrays */
DEFINE_MUXREG(firda_pins, 0, PMX_FIRDA_MASK, 0);
DEFINE_MUXREG(i2c_pins, 0, PMX_I2C_MASK, 0);
DEFINE_MUXREG(ssp_cs_pins, 0, PMX_SSP_CS_MASK, 0);
DEFINE_MUXREG(ssp_pins, 0, PMX_SSP_MASK, 0);
DEFINE_MUXREG(mii_pins, 0, PMX_MII_MASK, 0);
DEFINE_MUXREG(gpio0_pin0_pins, 0, PMX_GPIO_PIN0_MASK, 0);
DEFINE_MUXREG(gpio0_pin1_pins, 0, PMX_GPIO_PIN1_MASK, 0);
DEFINE_MUXREG(gpio0_pin2_pins, 0, PMX_GPIO_PIN2_MASK, 0);
DEFINE_MUXREG(gpio0_pin3_pins, 0, PMX_GPIO_PIN3_MASK, 0);
DEFINE_MUXREG(gpio0_pin4_pins, 0, PMX_GPIO_PIN4_MASK, 0);
DEFINE_MUXREG(gpio0_pin5_pins, 0, PMX_GPIO_PIN5_MASK, 0);
DEFINE_MUXREG(uart0_ext_pins, 0, PMX_UART0_MODEM_MASK, 0);
DEFINE_MUXREG(uart0_pins, 0, PMX_UART0_MASK, 0);
DEFINE_MUXREG(timer_0_1_pins, 0, PMX_TIMER_0_1_MASK, 0);
DEFINE_MUXREG(timer_2_3_pins, 0, PMX_TIMER_2_3_MASK, 0);
static struct spear_gpio_pingroup spear3xx_gpio_pingroup[] = {
GPIO_PINGROUP(firda_pins),
GPIO_PINGROUP(i2c_pins),
GPIO_PINGROUP(ssp_cs_pins),
GPIO_PINGROUP(ssp_pins),
GPIO_PINGROUP(mii_pins),
GPIO_PINGROUP(gpio0_pin0_pins),
GPIO_PINGROUP(gpio0_pin1_pins),
GPIO_PINGROUP(gpio0_pin2_pins),
GPIO_PINGROUP(gpio0_pin3_pins),
GPIO_PINGROUP(gpio0_pin4_pins),
GPIO_PINGROUP(gpio0_pin5_pins),
GPIO_PINGROUP(uart0_ext_pins),
GPIO_PINGROUP(uart0_pins),
GPIO_PINGROUP(timer_0_1_pins),
GPIO_PINGROUP(timer_2_3_pins),
};
struct spear_pinctrl_machdata spear3xx_machdata = {
.pins = spear3xx_pins,
.npins = ARRAY_SIZE(spear3xx_pins),
.gpio_pingroups = spear3xx_gpio_pingroup,
.ngpio_pingroups = ARRAY_SIZE(spear3xx_gpio_pingroup),
};