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gpio: generic: factor into gpio_chip struct

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The separate struct bgpio_chip has been a pain to handle, both
by being confusingly similar in name to struct gpio_chip and
for being contained inside a struct so that struct gpio_chip
is contained in a struct contained in a struct, making several
steps of dereferencing necessary.

Make things simpler: include the fields directly into
<linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
some of the member variables with bgpio_* and add proper
kerneldoc while we're at it.

Modify all users to handle the change and use a struct
gpio_chip directly. And while we're at it: replace all
container_of() dereferencing by gpiochip_get_data() and
registering the gpio_chip with gpiochip_add_data().

Cc: [email protected]
Cc: Alexander Shiyan <[email protected]>
Cc: Shawn Guo <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Alexandre Courbot <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: Sudeep Holla <[email protected]>
Cc: Lorenzo Pieralisi <[email protected]>
Cc: Nicolas Pitre <[email protected]>
Cc: Olof Johansson <[email protected]>
Cc: Vladimir Zapolskiy <[email protected]>
Cc: Rabin Vincent <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Acked-by: Gregory Fong <[email protected]>
Acked-by: Liviu Dudau <[email protected]>
Acked-by: H Hartley Sweeten <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Lee Jones <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Linus Walleij 2015-12-04 14:02:58 +01:00
commit 0f4630f372
22 changed files with 442 additions and 552 deletions
Download patch file Download diff file Expand all files Collapse all files

8
drivers/mfd/vexpress-sysreg.c
View file

@ -11,7 +11,7 @@
* Copyright (C) 2012 ARM Limited
*/
#include <linux/basic_mmio_gpio.h>
#include <linux/gpio/driver.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/mfd/core.h>
@ -164,7 +164,7 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
{
struct resource *mem;
void __iomem *base;
struct bgpio_chip *mmc_gpio_chip;
struct gpio_chip *mmc_gpio_chip;
int master;
u32 dt_hbi;
@ -201,8 +201,8 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
return -ENOMEM;
bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
NULL, NULL, NULL, NULL, 0);
mmc_gpio_chip->gc.ngpio = 2;
gpiochip_add(&mmc_gpio_chip->gc);
mmc_gpio_chip->ngpio = 2;
gpiochip_add(mmc_gpio_chip);
return mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
vexpress_sysreg_cells,