target/linux/s3c24xx/patches/0100-Add-GPIO-IRQ-for-the-s3c2410-and-add-irq_to_gpio.patch

   1 From d0342f6cc0388862a8e62b4b77f1c4c011385e9a Mon Sep 17 00:00:00 2001
   2 From: Holger Freyther <zecke@openmoko.org>
   3 Date: Fri, 25 Jul 2008 23:06:03 +0100
   4 Subject: [PATCH] Add GPIO -> IRQ for the s3c2410 and add irq_to_gpio to the gpio.h of the Samsung SoC
   5
   6 Use this irq_to_gpio in the neo1973 keyboard driver
   7 ---
   8  drivers/input/keyboard/neo1973kbd.c |   19 ++++++-------------
   9  include/asm-arm/arch-s3c2410/gpio.h |    5 ++---
  10  2 files changed, 8 insertions(+), 16 deletions(-)
  11
  12 diff --git a/drivers/input/keyboard/neo1973kbd.c b/drivers/input/keyboard/neo1973kbd.c
  13 index b413bc8..06fa8e0 100644
  14 --- a/drivers/input/keyboard/neo1973kbd.c
  15 +++ b/drivers/input/keyboard/neo1973kbd.c
  16 @@ -28,16 +28,13 @@
  17  struct neo1973kbd {
  18         struct input_dev *input;
  19         unsigned int suspended;
  20 -       int gpio_aux;
  21 -       int gpio_hold;
  22 -       int gpio_jack;
  23  };
  24
  25  static irqreturn_t neo1973kbd_aux_irq(int irq, void *dev_id)
  26  {
  27         struct neo1973kbd *neo1973kbd_data = dev_id;
  28
  29 -       int key_pressed = !gpio_get_value(neo1973kbd_data->gpio_aux);
  30 +       int key_pressed = !gpio_get_value(irq_to_gpio(irq));
  31         input_report_key(neo1973kbd_data->input, KEY_PHONE, key_pressed);
  32         input_sync(neo1973kbd_data->input);
  33
  34 @@ -48,7 +45,7 @@ static irqreturn_t neo1973kbd_hold_irq(int irq, void *dev_id)
  35  {
  36         struct neo1973kbd *neo1973kbd_data = dev_id;
  37
  38 -       int key_pressed = gpio_get_value(neo1973kbd_data->gpio_hold);
  39 +       int key_pressed = gpio_get_value(irq_to_gpio(irq));
  40         input_report_key(neo1973kbd_data->input, KEY_PAUSE, key_pressed);
  41         input_sync(neo1973kbd_data->input);
  42
  43 @@ -59,7 +56,7 @@ static irqreturn_t neo1973kbd_headphone_irq(int irq, void *dev_id)
  44  {
  45         struct neo1973kbd *neo1973kbd_data = dev_id;
  46
  47 -       int key_pressed = gpio_get_value(neo1973kbd_data->gpio_jack);
  48 +       int key_pressed = gpio_get_value(irq_to_gpio(irq));
  49         input_report_switch(neo1973kbd_data->input,
  50                             SW_HEADPHONE_INSERT, key_pressed);
  51         input_sync(neo1973kbd_data->input);
  52 @@ -107,19 +104,15 @@ static int neo1973kbd_probe(struct platform_device *pdev)
  53         if (pdev->resource[0].flags != 0)
  54                 return -EINVAL;
  55
  56 -       neo1973kbd->gpio_aux = pdev->resource[0].start;
  57 -       neo1973kbd->gpio_hold = pdev->resource[1].start;
  58 -       neo1973kbd->gpio_jack = pdev->resource[2].start;
  59 -
  60 -       irq_aux = gpio_to_irq(neo1973kbd->gpio_aux);
  61 +       irq_aux = gpio_to_irq(pdev->resource[0].start);
  62         if (irq_aux < 0)
  63                 return -EINVAL;
  64
  65 -       irq_hold = gpio_to_irq(neo1973kbd->gpio_hold);
  66 +       irq_hold = gpio_to_irq(pdev->resource[1].start);
  67         if (irq_hold < 0)
  68                 return -EINVAL;
  69
  70 -       irq_jack = gpio_to_irq(neo1973kbd->gpio_jack);
  71 +       irq_jack = gpio_to_irq(pdev->resource[2].start);
  72         if (irq_jack < 0)
  73                 return -EINVAL;
  74
  75 diff --git a/include/asm-arm/arch-s3c2410/gpio.h b/include/asm-arm/arch-s3c2410/gpio.h
  76 index 7583895..1b96c4e 100644
  77 --- a/include/asm-arm/arch-s3c2410/gpio.h
  78 +++ b/include/asm-arm/arch-s3c2410/gpio.h
  79 @@ -61,8 +61,7 @@ static inline int gpio_direction_output(unsigned gpio, int value)
  80  #define gpio_to_irq(gpio)              s3c2400_gpio_getirq(gpio)
  81  #else
  82  #define gpio_to_irq(gpio)              s3c2410_gpio_getirq(gpio)
  83 +#define irq_to_gpio(irq)               s3c2410_irq_to_gpio(irq)
  84  #endif
  85 -
  86 -/* FIXME implement irq_to_gpio() */
  87 -
  88  #endif
  89 +#include <asm-generic/gpio.h>
  90 --
  91 1.5.6.3
  92