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ARM: device tree work

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Most of these patches convert code from using static platform data to
 describing the hardware in the device tree. This is only the first
 half of the changes for v3.4 because a lot of patches for this topic
 came in the last week before the merge window.
 
 Signed-off-by: Arnd Bergmann <[email protected]>
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: device tree work" from Arnd Bergmann:
 "Most of these patches convert code from using static platform data to
  describing the hardware in the device tree.  This is only the first
  half of the changes for v3.4 because a lot of patches for this topic
  came in the last week before the merge window.

  Signed-off-by: Arnd Bergmann <[email protected]>"

Fix up trivial conflicts in arch/arm/mach-vexpress/{Kconfig,core.h}

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (86 commits)
  Document: devicetree: add OF documents for arch-mmp
  ARM: dts: append DTS file of pxa168
  ARM: mmp: append OF support on pxa168
  ARM: mmp: enable rtc clk in pxa168
  i2c: pxa: add OF support
  serial: pxa: add OF support
  arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board
  ARM: OMAP2+: Remove extra ifdefs for board-generic
  ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected
  ASoC: DT: Add digital microphone binding to PAZ00 board.
  ARM: dt: Add ARM PMU to tegra*.dtsi
  ARM: at91: at91sam9x5cm/dt: add leds support
  ARM: at91: usb_a9g20/dt: add gpio-keys support
  ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support
  ARM: at91: at91sam9m10g45ek/dt: add leds support
  ARM: at91: usb_a9g20/dt: add leds support
  ARM: at91/pio: add new PIO3 features
  ARM: at91: add sam9_smc.o to at91sam9x5 build
  ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter
  ARM: at91/tc: add device tree support to atmel_tclib
  ...
This commit is contained in:
Linus Torvalds 2012-03-27 16:47:35 -07:00
commit 66f03c614c
147 changed files with 5017 additions and 1037 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/tty/serial/atmel_serial.c
View file

@ -1526,6 +1526,8 @@ void __init atmel_register_uart_fns(struct atmel_port_fns *fns)
atmel_pops.set_wake = fns->set_wake;
}
struct platform_device *atmel_default_console_device; /* the serial console device */
#ifdef CONFIG_SERIAL_ATMEL_CONSOLE
static void atmel_console_putchar(struct uart_port *port, int ch)
{

49
drivers/tty/serial/pxa.c
View file

@ -36,6 +36,7 @@
#include <linux/circ_buf.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
@ -44,6 +45,8 @@
#include <linux/io.h>
#include <linux/slab.h>
#define PXA_NAME_LEN 8
struct uart_pxa_port {
struct uart_port port;
unsigned char ier;
@ -51,7 +54,7 @@ struct uart_pxa_port {
unsigned char mcr;
unsigned int lsr_break_flag;
struct clk *clk;
char *name;
char name[PXA_NAME_LEN];
};
static inline unsigned int serial_in(struct uart_pxa_port *up, int offset)
@ -781,6 +784,31 @@ static const struct dev_pm_ops serial_pxa_pm_ops = {
};
#endif
static struct of_device_id serial_pxa_dt_ids[] = {
{ .compatible = "mrvl,pxa-uart", },
{ .compatible = "mrvl,mmp-uart", },
{}
};
MODULE_DEVICE_TABLE(of, serial_pxa_dt_ids);
static int serial_pxa_probe_dt(struct platform_device *pdev,
struct uart_pxa_port *sport)
{
struct device_node *np = pdev->dev.of_node;
int ret;
if (!np)
return 1;
ret = of_alias_get_id(np, "serial");
if (ret < 0) {
dev_err(&pdev->dev, "failed to get alias id, errno %d\n", ret);
return ret;
}
sport->port.line = ret;
return 0;
}
static int serial_pxa_probe(struct platform_device *dev)
{
struct uart_pxa_port *sport;
@ -808,20 +836,16 @@ static int serial_pxa_probe(struct platform_device *dev)
sport->port.irq = irqres->start;
sport->port.fifosize = 64;
sport->port.ops = &serial_pxa_pops;
sport->port.line = dev->id;
sport->port.dev = &dev->dev;
sport->port.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
sport->port.uartclk = clk_get_rate(sport->clk);
switch (dev->id) {
case 0: sport->name = "FFUART"; break;
case 1: sport->name = "BTUART"; break;
case 2: sport->name = "STUART"; break;
case 3: sport->name = "HWUART"; break;
default:
sport->name = "???";
break;
}
ret = serial_pxa_probe_dt(dev, sport);
if (ret > 0)
sport->port.line = dev->id;
else if (ret < 0)
goto err_clk;
snprintf(sport->name, PXA_NAME_LEN - 1, "UART%d", sport->port.line + 1);
sport->port.membase = ioremap(mmres->start, resource_size(mmres));
if (!sport->port.membase) {
@ -829,7 +853,7 @@ static int serial_pxa_probe(struct platform_device *dev)
goto err_clk;
}
serial_pxa_ports[dev->id] = sport;
serial_pxa_ports[sport->port.line] = sport;
uart_add_one_port(&serial_pxa_reg, &sport->port);
platform_set_drvdata(dev, sport);
@ -866,6 +890,7 @@ static struct platform_driver serial_pxa_driver = {
#ifdef CONFIG_PM
.pm = &serial_pxa_pm_ops,
#endif
.of_match_table = serial_pxa_dt_ids,
},
};