[s3c24xx] Replace gta02 keyboard driver with generic gpio keyboard.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17070 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 22 insertions, 334 deletions

diff --git a/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/mach-gta02.c b/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/mach-gta02.c
index b5a9fa6218..b74c94eea3 100644
--- a/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/mach-gta02.c
+++ b/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/mach-gta02.c
@@ -39,6 +39,7 @@
 #include <linux/spi/spi_bitbang.h>
 #include <linux/mmc/host.h>
 #include <linux/leds.h>
+#include <linux/gpio_keys.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
@@ -1273,40 +1274,38 @@ struct platform_device gta02_led_dev = {
 	},
 };
 
-static struct resource gta02_button_resources[] = {
-	[0] = {
-		.start = GTA02_GPIO_AUX_KEY,
-		.end   = GTA02_GPIO_AUX_KEY,
-	},
-	[1] = {
-		.start = GTA02_GPIO_HOLD_KEY,
-		.end   = GTA02_GPIO_HOLD_KEY,
-	},
-	[2] = {
-		.start = GTA02_GPIO_JACK_INSERT,
-		.end   = GTA02_GPIO_JACK_INSERT,
-	},
-	[3] = {
-		.start = 0,
-		.end   = 0,
+static struct gpio_keys_button gta02_buttons[] = {
+	{
+		.gpio = GTA02_GPIO_AUX_KEY,
+		.code = KEY_PHONE,
+		.desc = "Aux",
+		.type = EV_KEY,
 	},
-	[4] = {
-		.start = 0,
-		.end   = 0,
+	{
+		.gpio = GTA02_GPIO_HOLD_KEY,
+		.code = KEY_PAUSE,
+		.desc = "Hold",
+		.type = EV_KEY,
 	},
 };
 
+static struct gpio_keys_platform_data gta02_buttons_pdata = {
+	.buttons = gta02_buttons,
+	.nbuttons = ARRAY_SIZE(gta02_buttons),
+};
+
 static struct platform_device gta02_button_dev = {
-	.name		= "gta02-button",
-	.num_resources	= ARRAY_SIZE(gta02_button_resources),
-	.resource	= gta02_button_resources,
+	.name = "gpio-keys",
+	.id = -1,
+	.dev = {
+		.platform_data = &gta02_buttons_pdata,
+	},
 };
 
 static struct platform_device gta02_pm_usbhost_dev = {
 	.name		= "gta02-pm-host",
 };
 
-
 /* USB */
 static struct s3c2410_hcd_info gta02_usb_info = {
 	.port[0]	= {
diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/input/keyboard/gta02kbd.c b/target/linux/s3c24xx/files-2.6.30/drivers/input/keyboard/gta02kbd.c
deleted file mode 100644
index 0fca17071f..0000000000
--- a/target/linux/s3c24xx/files-2.6.30/drivers/input/keyboard/gta02kbd.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * Keyboard driver for Openmoko Freerunner GSM phone
- *
- * (C) 2006-2007 by Openmoko, Inc.
- * Author: Harald Welte <laforge@openmoko.org>
- * All rights reserved.
- *
- * inspired by corkgbd.c by Richard Purdie
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/input.h>
-#include <linux/interrupt.h>
-#include <linux/jiffies.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include <mach/gpio.h>
-#include <asm/mach-types.h>
-
-#ifdef CONFIG_PM
-extern int global_inside_suspend;
-#else
-#define global_inside_suspend 0
-#endif
-
-struct gta02kbd {
-	struct platform_device *pdev;
-	struct input_dev *input;
-	int aux_state;
-};
-
-enum keys {
-	GTA02_KEY_AUX,
-	GTA02_KEY_HOLD,
-};
-
-struct gta02kbd_key {
-	const char * name;
-	irqreturn_t (*isr)(int irq, void *dev_id);
-	int irq;
-	int input_key;
-};
-
-static irqreturn_t gta02kbd_aux_irq(int irq, void *dev_id);
-static irqreturn_t gta02kbd_default_key_irq(int irq, void *dev_id);
-
-
-static struct gta02kbd_key keys[] = {
-	[GTA02_KEY_AUX] = {
-		.name = "GTA02 AUX button",
-		.isr = gta02kbd_aux_irq,
-		.input_key = KEY_PHONE,
-	},
-	[GTA02_KEY_HOLD] = {
-		.name = "GTA02 HOLD button",
-		.isr = gta02kbd_default_key_irq,
-		.input_key = KEY_PAUSE,
-	},
-};
-
-/* This timer section filters AUX button IRQ bouncing */
-
-static void aux_key_timer_f(unsigned long data);
-
-static struct timer_list aux_key_timer =
-		TIMER_INITIALIZER(aux_key_timer_f, 0, 0);
-
-#define AUX_TIMER_TIMEOUT (HZ >> 7)
-#define AUX_TIMER_ALLOWED_NOOP 2
-#define AUX_TIMER_CONSECUTIVE_EVENTS 5
-
-struct gta02kbd *timer_kbd;
-
-static void aux_key_timer_f(unsigned long data)
-{
-	static int noop_counter;
-	static int last_key = -1;
-	static int last_count;
-	int key_pressed;
-
-	key_pressed =
-		gpio_get_value(timer_kbd->pdev->resource[GTA02_KEY_AUX].start);
-
-	if (likely(key_pressed == last_key))
-		last_count++;
-	else {
-		last_count = 1;
-		last_key = key_pressed;
-	}
-
-	if (unlikely(last_count >= AUX_TIMER_CONSECUTIVE_EVENTS)) {
-		if (timer_kbd->aux_state != last_key) {
-			input_report_key(timer_kbd->input, KEY_PHONE, last_key);
-			input_sync(timer_kbd->input);
-
-			timer_kbd->aux_state = last_key;
-			noop_counter = 0;
-		}
-		last_count = 0;
-		if (unlikely(++noop_counter > AUX_TIMER_ALLOWED_NOOP)) {
-			noop_counter = 0;
-			return;
-		}
-	}
-
-	mod_timer(&aux_key_timer, jiffies + AUX_TIMER_TIMEOUT);
-}
-
-static irqreturn_t gta02kbd_aux_irq(int irq, void *dev)
-{
-	mod_timer(&aux_key_timer, jiffies + AUX_TIMER_TIMEOUT);
-
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t gta02kbd_default_key_irq(int irq, void *dev_id)
-{
-	struct gta02kbd *kbd = dev_id;
-	int n;
-
-	for (n = 0; n < ARRAY_SIZE(keys); n++) {
-
-		if (irq != keys[n].irq)
-			continue;
-
-		input_report_key(kbd->input, keys[n].input_key,
-				  gpio_get_value(kbd->pdev->resource[n].start));
-		input_sync(kbd->input);
-	}
-
-	return IRQ_HANDLED;
-}
-
-#ifdef CONFIG_PM
-static int gta02kbd_suspend(struct platform_device *dev, pm_message_t state)
-{
-	disable_irq(keys[GTA02_KEY_AUX].irq);
-	del_timer_sync(&aux_key_timer);
-	return 0;
-}
-
-static int gta02kbd_resume(struct platform_device *dev)
-{
-	enable_irq(keys[GTA02_KEY_AUX].irq);
-	return 0;
-}
-#else
-#define gta02kbd_suspend	NULL
-#define gta02kbd_resume	NULL
-#endif
-
-static int gta02kbd_probe(struct platform_device *pdev)
-{
-	struct gta02kbd *gta02kbd;
-	struct input_dev *input_dev;
-	int rc;
-	int irq;
-	int n;
-
-	if (pdev->resource[0].flags != 0)
-		return -EINVAL;
-
-	gta02kbd = kzalloc(sizeof(struct gta02kbd), GFP_KERNEL);
-	input_dev = input_allocate_device();
-	if (!gta02kbd || !input_dev) {
-		kfree(gta02kbd);
-		input_free_device(input_dev);
-		return -ENOMEM;
-	}
-
-	gta02kbd->pdev = pdev;
-	timer_kbd = gta02kbd;
-
-	platform_set_drvdata(pdev, gta02kbd);
-
-	gta02kbd->input = input_dev;
-
-	input_dev->name = "GTA02 Buttons";
-	input_dev->phys = "gta02kbd/input0";
-	input_dev->id.bustype = BUS_HOST;
-	input_dev->id.vendor = 0x0001;
-	input_dev->id.product = 0x0001;
-	input_dev->id.version = 0x0100;
-	input_dev->dev.parent = &pdev->dev;
-
-	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_SW);
-	set_bit(KEY_PHONE, input_dev->keybit);
-	set_bit(KEY_PAUSE, input_dev->keybit);
-
-	rc = input_register_device(gta02kbd->input);
-	if (rc)
-		goto out_register;
-
-	/* register GPIO IRQs */
-	for(n = 0; n < min(pdev->num_resources, ARRAY_SIZE(keys)); n++) {
-
-		if (!pdev->resource[0].start)
-			continue;
-
-		irq = gpio_to_irq(pdev->resource[n].start);
-		if (irq < 0)
-			continue;
-
-		if (request_irq(irq, keys[n].isr, IRQF_DISABLED |
-				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-				keys[n].name, gta02kbd)) {
-			dev_err(&pdev->dev, "Can't get IRQ %u\n", irq);
-
-			/* unwind any irq registrations and fail */
-
-			while (n > 0) {
-				n--;
-				free_irq(gpio_to_irq(pdev->resource[n].start),
-								    gta02kbd);
-			}
-			goto out_device_create;
-		}
-
-		keys[n].irq = irq;
-	}
-
-
-	return 0;
-
-out_device_create:
-	input_unregister_device(gta02kbd->input);
-out_register:
-	input_free_device(gta02kbd->input);
-	platform_set_drvdata(pdev, NULL);
-	kfree(gta02kbd);
-
-	return -ENODEV;
-}
-
-static int gta02kbd_remove(struct platform_device *pdev)
-{
-	struct gta02kbd *gta02kbd = platform_get_drvdata(pdev);
-
-	free_irq(gpio_to_irq(pdev->resource[1].start), gta02kbd);
-	free_irq(gpio_to_irq(pdev->resource[0].start), gta02kbd);
-
-	input_unregister_device(gta02kbd->input);
-	input_free_device(gta02kbd->input);
-	platform_set_drvdata(pdev, NULL);
-	kfree(gta02kbd);
-
-	return 0;
-}
-
-static struct platform_driver gta02kbd_driver = {
-	.probe		= gta02kbd_probe,
-	.remove		= gta02kbd_remove,
-	.suspend	= gta02kbd_suspend,
-	.resume		= gta02kbd_resume,
-	.driver		= {
-		.name	= "gta02-button",
-	},
-};
-
-static int __devinit gta02kbd_init(void)
-{
-	return platform_driver_register(&gta02kbd_driver);
-}
-
-static void __exit gta02kbd_exit(void)
-{
-	platform_driver_unregister(&gta02kbd_driver);
-}
-
-module_init(gta02kbd_init);
-module_exit(gta02kbd_exit);
-
-MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
-MODULE_DESCRIPTION("Openmoko Freerunner buttons input driver");
-MODULE_LICENSE("GPL");
diff --git a/target/linux/s3c24xx/patches-2.6.30/051-gta02kbd.patch b/target/linux/s3c24xx/patches-2.6.30/051-gta02kbd.patch
deleted file mode 100644
index cb3c57bccf..0000000000
--- a/target/linux/s3c24xx/patches-2.6.30/051-gta02kbd.patch
+++ /dev/null
@@ -1,28 +0,0 @@
---- a/drivers/input/keyboard/Kconfig
-+++ b/drivers/input/keyboard/Kconfig
-@@ -332,4 +332,15 @@ config KEYBOARD_SH_KEYSC
- 
- 	  To compile this driver as a module, choose M here: the
- 	  module will be called sh_keysc.
-+config KEYBOARD_GTA02
-+	tristate "Openmoko Freerunner buttons"
-+	depends on MACH_NEO1973
-+	default y
-+	help
-+	  Say Y here to enable the buttons on the Openmoko Freerunner 
-+	  GSM phone.
-+
-+	  To compile this driver as a module, choose M here: the
-+	  module will be called gta02kbd.
-+
- endif
---- a/drivers/input/keyboard/Makefile
-+++ b/drivers/input/keyboard/Makefile
-@@ -14,6 +14,7 @@ obj-$(CONFIG_KEYBOARD_LOCOMO)		+= locomo
- obj-$(CONFIG_KEYBOARD_NEWTON)		+= newtonkbd.o
- obj-$(CONFIG_KEYBOARD_STOWAWAY)		+= stowaway.o
- obj-$(CONFIG_KEYBOARD_CORGI)		+= corgikbd.o
-+obj-$(CONFIG_KEYBOARD_GTA02)		+= gta02kbd.o
- obj-$(CONFIG_KEYBOARD_SPITZ)		+= spitzkbd.o
- obj-$(CONFIG_KEYBOARD_TOSA)		+= tosakbd.o
- obj-$(CONFIG_KEYBOARD_HIL)		+= hil_kbd.o