[PATCH v3 6/9] ARM: S3C64XX: Adds Touchscreen support for S3C64XX
Kukjin Kim
kgene.kim at samsung.com
Tue May 18 07:44:50 EDT 2010
From: Naveen Krishna <ch.naveen at samsung.com>
This patch adds touchscreen support for S3C64XX.
Signed-off-by: Naveen Krishna Ch <ch.naveen at samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
---
arch/arm/mach-s3c64xx/Kconfig | 1 +
arch/arm/mach-s3c64xx/mach-smdk6410.c | 12 +++++++
arch/arm/mach-s3c64xx/s3c6410.c | 1 +
arch/arm/plat-samsung/Kconfig | 5 +++
arch/arm/plat-samsung/Makefile | 1 +
arch/arm/plat-samsung/dev-ts.c | 55 +++++++++++++++++++++++++++++++++
6 files changed, 75 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/plat-samsung/dev-ts.c
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 69e9fbf..1f2f412 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -90,6 +90,7 @@ config MACH_SMDK6410
select S3C_DEV_HSMMC1
select S3C_DEV_I2C1
select S3C_DEV_FB
+ select SAMSUNG_DEV_TS
select S3C_DEV_USB_HOST
select S3C_DEV_USB_HSOTG
select S3C64XX_SETUP_SDHCI
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index 2d5afd2..fb186c9 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -64,6 +64,8 @@
#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>
+#include <plat/adc.h>
+#include <plat/ts.h>
#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
@@ -262,6 +264,8 @@ static struct platform_device *smdk6410_devices[] __initdata = {
&smdk6410_lcd_powerdev,
&smdk6410_smsc911x,
+ &s3c_device_adc,
+ &s3c_device_ts,
};
#ifdef CONFIG_REGULATOR
@@ -596,6 +600,12 @@ static struct i2c_board_info i2c_devs1[] __initdata = {
{ I2C_BOARD_INFO("24c128", 0x57), }, /* Samsung S524AD0XD1 */
};
+static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
+ .delay = 10000,
+ .presc = 49,
+ .oversampling_shift = 2,
+};
+
static void __init smdk6410_map_io(void)
{
u32 tmp;
@@ -625,6 +635,8 @@ static void __init smdk6410_machine_init(void)
s3c_i2c1_set_platdata(NULL);
s3c_fb_set_platdata(&smdk6410_lcd_pdata);
+ s3c24xx_ts_set_platdata(&s3c_ts_platform);
+
/* configure nCS1 width to 16 bits */
cs1 = __raw_readl(S3C64XX_SROM_BW) &
diff --git a/arch/arm/mach-s3c64xx/s3c6410.c b/arch/arm/mach-s3c64xx/s3c6410.c
index 31e53fa..4390ecb 100644
--- a/arch/arm/mach-s3c64xx/s3c6410.c
+++ b/arch/arm/mach-s3c64xx/s3c6410.c
@@ -55,6 +55,7 @@ void __init s3c6410_map_io(void)
s3c_device_adc.name = "s3c64xx-adc";
s3c_device_nand.name = "s3c6400-nand";
+ s3c_device_ts.name = "s3c64xx-ts";
}
void __init s3c6410_init_clocks(int xtal)
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 641649f..b466da8 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -196,6 +196,11 @@ config S3C64XX_DEV_SPI
Compile in platform device definitions for S3C64XX's type
SPI controllers.
+config SAMSUNG_DEV_TS
+ bool
+ help
+ Compile in platform device definition for Samsung Touch Screen.
+
# DMA
config S3C_DMA
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 3cf30a4..695ed99 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_S3C_DEV_USB_HOST) += dev-usb.o
obj-$(CONFIG_S3C_DEV_USB_HSOTG) += dev-usb-hsotg.o
obj-$(CONFIG_S3C_DEV_NAND) += dev-nand.o
obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
+obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
# DMA support
diff --git a/arch/arm/plat-samsung/dev-ts.c b/arch/arm/plat-samsung/dev-ts.c
new file mode 100644
index 0000000..7571691
--- /dev/null
+++ b/arch/arm/plat-samsung/dev-ts.c
@@ -0,0 +1,55 @@
+/* linux/arch/arm/plat-samsung/dev-ts.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ * Naveen Krishna Ch <ch.naveen at samsung.com>
+ *
+ * TouchScreen Device definition for Samsung S3C, S5P serie SoCs.
+ *
+ * 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/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <mach/map.h>
+#include <mach/irqs.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <plat/ts.h>
+
+static struct resource s3c_ts_resource[] = {
+[0] = {
+ .start = SAMSUNG_PA_ADC,
+ .end = SAMSUNG_PA_ADC + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_PENDN,
+ .end = IRQ_PENDN,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device s3c_device_ts = {
+ .name = "samsung-ts",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(s3c_ts_resource),
+ .resource = s3c_ts_resource,
+};
+
+void __init s3c24xx_ts_set_platdata(struct s3c2410_ts_mach_info *pd)
+{
+ struct s3c2410_ts_mach_info *npd;
+
+ npd = kmalloc(sizeof(*npd), GFP_KERNEL);
+ if (npd) {
+ memcpy(npd, pd, sizeof(*npd));
+ s3c_device_ts.dev.platform_data = npd;
+ } else {
+ printk(KERN_ERR "no memory for Touchscreen platform data\n");
+ }
+}
--
1.6.2.5
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