omap24xx: Export certain n8x0 GPIO switches as input device

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23120 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 111 insertions, 13 deletions

diff --git a/target/linux/omap24xx/patches-2.6.36/310-n8x0-gpioswitch-input.patch b/target/linux/omap24xx/patches-2.6.36/310-n8x0-gpioswitch-input.patch
new file mode 100644
index 000000000..474829a64
--- /dev/null
+++ b/target/linux/omap24xx/patches-2.6.36/310-n8x0-gpioswitch-input.patch
@@ -0,0 +1,98 @@
+---
+ arch/arm/mach-omap2/board-n8x0.c |   73 +++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 73 insertions(+)
+
+--- linux-2.6.36-rc5.orig/arch/arm/mach-omap2/board-n8x0.c
++++ linux-2.6.36-rc5/arch/arm/mach-omap2/board-n8x0.c
+@@ -796,6 +796,77 @@ extern void n8x0_blizzard_init(void);
+ 
+ extern void n8x0_usb_init(void);
+ 
++struct gpio_switch_input_dev {
++	struct input_dev *idev;
++	unsigned int swcode;
++};
++
++static struct gpio_switch_input_dev *slide_input;
++static struct gpio_switch_input_dev *kblock_input;
++
++static void n8x0_gpio_switch_input_notify(struct gpio_switch_input_dev *gdev,
++					  int state)
++{
++	if (gdev) {
++		input_report_switch(gdev->idev, gdev->swcode, state);
++		input_sync(gdev->idev);
++	}
++}
++
++static void n8x0_slide_notify(void *data, int state)
++{
++	n8x0_gpio_switch_input_notify(slide_input, state);
++}
++
++static void n8x0_kb_lock_notify(void *data, int state)
++{
++	n8x0_gpio_switch_input_notify(kblock_input, state);
++}
++
++static struct gpio_switch_input_dev * __init gpioswitch_input_init(
++			const char *name,
++			unsigned int swcode)
++{
++	struct gpio_switch_input_dev *gdev;
++	int err;
++
++	gdev = kzalloc(sizeof(*gdev), GFP_KERNEL);
++	if (!gdev)
++		goto error;
++	gdev->swcode = swcode;
++
++	gdev->idev = input_allocate_device();
++	if (!gdev->idev)
++		goto err_free;
++
++	gdev->idev->evbit[0] = BIT_MASK(EV_SW);
++	gdev->idev->swbit[BIT_WORD(swcode)] = BIT_MASK(swcode);
++	gdev->idev->name = name;
++
++	err = input_register_device(gdev->idev);
++	if (err)
++		goto err_free_idev;
++
++	return gdev;
++
++err_free_idev:
++	input_free_device(gdev->idev);
++err_free:
++	kfree(gdev);
++error:
++	return NULL;
++}
++
++static int __init n8x0_gpio_switches_input_init(void)
++{
++	slide_input = gpioswitch_input_init("slide", SW_KEYPAD_SLIDE);
++	kblock_input = gpioswitch_input_init("kb_lock", SW_LID);
++	if (WARN_ON(!slide_input || !kblock_input))
++		return -ENODEV;
++	return 0;
++}
++late_initcall(n8x0_gpio_switches_input_init);
++
+ static struct omap_gpio_switch n8x0_gpio_switches[] __initdata = {
+ 	{
+ 		.name			= "headphone",
+@@ -817,11 +888,13 @@ static struct omap_gpio_switch n8x0_gpio
+ 		.gpio			= -1,
+ 		.debounce_rising	= 200,
+ 		.debounce_falling	= 200,
++		.notify			= n8x0_slide_notify,
+ 	}, {
+ 		.name			= "kb_lock",
+ 		.gpio			= -1,
+ 		.debounce_rising	= 200,
+ 		.debounce_falling	= 200,
++		.notify			= n8x0_kb_lock_notify,
+ 	},
+ };
+ 
diff --git a/target/linux/omap24xx/patches-2.6.36/900-n810-battery-management.patch b/target/linux/omap24xx/patches-2.6.36/900-n810-battery-management.patch
index c3507fba9..f3b8edbe8 100644
--- a/target/linux/omap24xx/patches-2.6.36/900-n810-battery-management.patch
+++ b/target/linux/omap24xx/patches-2.6.36/900-n810-battery-management.patch
@@ -7,8 +7,8 @@
  drivers/cbus/retu.h              |    2 
  6 files changed, 425 insertions(+), 3 deletions(-)
 
---- linux-2.6.36-rc4.orig/drivers/cbus/Kconfig
-+++ linux-2.6.36-rc4/drivers/cbus/Kconfig
+--- linux-2.6.36-rc5.orig/drivers/cbus/Kconfig
++++ linux-2.6.36-rc5/drivers/cbus/Kconfig
 @@ -94,4 +94,16 @@ config CBUS_RETU_HEADSET
  	  to Retu/Vilma. Detection state and events are exposed through
  	  sysfs.
@@ -26,15 +26,15 @@
 +	  If unsure, say N.
 +
  endmenu
---- linux-2.6.36-rc4.orig/drivers/cbus/Makefile
-+++ linux-2.6.36-rc4/drivers/cbus/Makefile
+--- linux-2.6.36-rc5.orig/drivers/cbus/Makefile
++++ linux-2.6.36-rc5/drivers/cbus/Makefile
 @@ -12,3 +12,4 @@ obj-$(CONFIG_CBUS_RETU_WDT)	+= retu-wdt.
  obj-$(CONFIG_CBUS_TAHVO_USER)	+= tahvo-user.o
  obj-$(CONFIG_CBUS_RETU_USER)	+= retu-user.o
  obj-$(CONFIG_CBUS_RETU_HEADSET)	+= retu-headset.o
 +obj-$(CONFIG_N810BM)		+= n810bm.o
 --- /dev/null
-+++ linux-2.6.36-rc4/drivers/cbus/n810bm.c
++++ linux-2.6.36-rc5/drivers/cbus/n810bm.c
 @@ -0,0 +1,396 @@
 +/*
 + *   Nokia n810 battery management
@@ -432,8 +432,8 @@
 +MODULE_DESCRIPTION("Nokia n810 battery management");
 +MODULE_LICENSE("GPL");
 +MODULE_AUTHOR("Michael Buesch");
---- linux-2.6.36-rc4.orig/drivers/cbus/retu.c
-+++ linux-2.6.36-rc4/drivers/cbus/retu.c
+--- linux-2.6.36-rc5.orig/drivers/cbus/retu.c
++++ linux-2.6.36-rc5/drivers/cbus/retu.c
 @@ -85,10 +85,10 @@ int retu_read_reg(int reg)
   *
   * This function writes a value to the specified register
@@ -447,8 +447,8 @@
  }
  
  void retu_set_clear_reg_bits(int reg, u16 set, u16 clear)
---- linux-2.6.36-rc4.orig/drivers/cbus/retu.h
-+++ linux-2.6.36-rc4/drivers/cbus/retu.h
+--- linux-2.6.36-rc5.orig/drivers/cbus/retu.h
++++ linux-2.6.36-rc5/drivers/cbus/retu.h
 @@ -58,7 +58,7 @@
  #define	MAX_RETU_IRQ_HANDLERS	16
  
@@ -458,9 +458,9 @@
  void retu_set_clear_reg_bits(int reg, u16 set, u16 clear);
  int retu_read_adc(int channel);
  int retu_request_irq(int id, void *irq_handler, unsigned long arg, char *name);
---- linux-2.6.36-rc4.orig/arch/arm/mach-omap2/board-n8x0.c
-+++ linux-2.6.36-rc4/arch/arm/mach-omap2/board-n8x0.c
-@@ -833,6 +833,17 @@ static void __init n8x0_gpio_switches_in
+--- linux-2.6.36-rc5.orig/arch/arm/mach-omap2/board-n8x0.c
++++ linux-2.6.36-rc5/arch/arm/mach-omap2/board-n8x0.c
+@@ -906,6 +906,17 @@ static void __init n8x0_gpio_switches_in
  				    ARRAY_SIZE(n8x0_gpio_switches));
  }
  
@@ -478,7 +478,7 @@
  static void __init n8x0_init_machine(void)
  {
  	omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
-@@ -860,6 +871,8 @@ static void __init n8x0_init_machine(voi
+@@ -933,6 +944,8 @@ static void __init n8x0_init_machine(voi
  	n8x0_onenand_init();
  	n8x0_mmc_init();
  	n8x0_usb_init();