openwrt/target/linux/s3c24xx/patches-2.6.31/050-s3c2442-touchscreen.patch

From 0bd4d22c621eef0178be7d518a92a7fe42a37b3c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 21 Jul 2009 12:43:48 +0200
Subject: [PATCH] 050-s3c2442-touchscreen.patch

---
 arch/arm/mach-s3c2410/include/mach/ts.h |   35 +++++++++++++++++++++++++++++++
 arch/arm/plat-s3c/include/plat/devs.h   |    3 +-
 arch/arm/plat-s3c24xx/devs.c            |   20 +++++++++++++++++
 arch/arm/plat-s3c24xx/s3c244x.c         |    3 ++
 drivers/input/touchscreen/Kconfig       |   18 ++++++++++++++++
 drivers/input/touchscreen/Makefile      |    1 +
 6 files changed, 79 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/mach-s3c2410/include/mach/ts.h

diff --git a/arch/arm/mach-s3c2410/include/mach/ts.h b/arch/arm/mach-s3c2410/include/mach/ts.h
new file mode 100644
index 0000000..f84324d
--- /dev/null
+++ b/arch/arm/mach-s3c2410/include/mach/ts.h
@@ -0,0 +1,35 @@
+/* arch/arm/mach-s3c2410/include/mach/ts.h
+ *
+ * Copyright (c) 2005 Arnaud Patard <arnaud.patard@rtp-net.org>
+ *
+ *
+ * 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.
+ *
+ *
+ *  Changelog:
+ *     24-Mar-2005     RTP     Created file
+ *     03-Aug-2005     RTP     Renamed to ts.h
+ */
+
+#ifndef __ASM_ARM_TS_H
+#define __ASM_ARM_TS_H
+
+#include <linux/touchscreen/ts_filter.h>
+
+struct s3c2410_ts_mach_info {
+	/* Touchscreen delay. */
+	int delay;
+	/* Prescaler value. */
+	int presc;
+	/*
+	 * Null-terminated array of pointers to filter APIs and configurations
+	 * we want to use. In the same order they will be applied.
+	 */
+	const struct ts_filter_chain_configuration *filter_config;
+};
+
+void set_s3c2410ts_info(const struct s3c2410_ts_mach_info *hard_s3c2410ts_info);
+
+#endif /* __ASM_ARM_TS_H */
diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h
index 49504b3..105ad09 100644
--- a/arch/arm/plat-s3c/include/plat/devs.h
+++ b/arch/arm/plat-s3c/include/plat/devs.h
@@ -55,10 +55,11 @@ extern struct platform_device s3c_device_nand;
 extern struct platform_device s3c_device_usbgadget;
 extern struct platform_device s3c_device_usb_hsotg;
 
+extern struct platform_device s3c_device_ts;
+
 /* s3c2440 specific devices */
 
 #ifdef CONFIG_CPU_S3C2440
 
 extern struct platform_device s3c_device_camif;
-
 #endif
diff --git a/arch/arm/plat-s3c24xx/devs.c b/arch/arm/plat-s3c24xx/devs.c
index 4eb378c..0fdaa54 100644
--- a/arch/arm/plat-s3c24xx/devs.c
+++ b/arch/arm/plat-s3c24xx/devs.c
@@ -26,6 +26,8 @@
 #include <asm/mach/irq.h>
 #include <mach/fb.h>
 #include <mach/hardware.h>
+#include <mach/ts.h>
+#include <asm/io.h>
 #include <asm/irq.h>
 
 #include <plat/regs-serial.h>
@@ -199,6 +201,24 @@ struct platform_device s3c_device_nand = {
 
 EXPORT_SYMBOL(s3c_device_nand);
 
+/* Touchscreen */
+struct platform_device s3c_device_ts = {
+	.name		  = "s3c2410-ts",
+	.id		  = -1,
+};
+
+EXPORT_SYMBOL(s3c_device_ts);
+
+static struct s3c2410_ts_mach_info s3c2410ts_info;
+
+void set_s3c2410ts_info(const struct s3c2410_ts_mach_info *hard_s3c2410ts_info)
+{
+	memcpy(&s3c2410ts_info, hard_s3c2410ts_info,
+	       sizeof(struct s3c2410_ts_mach_info));
+	s3c_device_ts.dev.platform_data = &s3c2410ts_info;
+}
+EXPORT_SYMBOL(set_s3c2410ts_info);
+
 /* USB Device (Gadget)*/
 
 static struct resource s3c_usbgadget_resource[] = {
diff --git a/arch/arm/plat-s3c24xx/s3c244x.c b/arch/arm/plat-s3c24xx/s3c244x.c
index 1364317..0731b23 100644
--- a/arch/arm/plat-s3c24xx/s3c244x.c
+++ b/arch/arm/plat-s3c24xx/s3c244x.c
@@ -59,6 +59,8 @@ void __init s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 	s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
 }
 
+extern struct platform_device s3c_device_ts;
+
 void __init s3c244x_map_io(void)
 {
 	/* register our io-tables */
@@ -70,6 +72,7 @@ void __init s3c244x_map_io(void)
 	s3c_device_sdi.name  = "s3c2440-sdi";
 	s3c_device_i2c0.name  = "s3c2440-i2c";
 	s3c_device_nand.name = "s3c2440-nand";
+	s3c_device_ts.name = "s3c2440-ts";
 	s3c_device_usbgadget.name = "s3c2440-usbgadget";
 }
 
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 72e2712..2bb711f 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -133,6 +133,24 @@ config TOUCHSCREEN_FUJITSU
 	  To compile this driver as a module, choose M here: the
 	  module will be called fujitsu-ts.
 
+config TOUCHSCREEN_S3C2410
+	tristate "Samsung S3C2410 touchscreen input driver"
+	depends on ARCH_S3C2410 && INPUT && INPUT_TOUCHSCREEN
+	select SERIO
+	help
+	  Say Y here if you have the s3c2410 touchscreen.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called s3c2410_ts.
+
+config TOUCHSCREEN_S3C2410_DEBUG
+	boolean "Samsung S3C2410 touchscreen debug messages"
+	depends on TOUCHSCREEN_S3C2410
+	help
+	  Select this if you want debug messages
+
 config TOUCHSCREEN_GUNZE
 	tristate "Gunze AHL-51S touchscreen"
 	select SERIO
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 3e1c5e0..269814c 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -40,3 +40,4 @@ obj-$(CONFIG_TOUCHSCREEN_WM97XX_ATMEL)	+= atmel-wm97xx.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE)	+= mainstone-wm97xx.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE)	+= zylonite-wm97xx.o
 obj-$(CONFIG_TOUCHSCREEN_W90X900)	+= w90p910_ts.o
+obj-$(CONFIG_TOUCHSCREEN_S3C2410)	+= s3c2410_ts.o
-- 
1.5.6.5