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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-19 11:49:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-19 11:49:33 -0700
commit349e1fba7e63b1067b5915337986060c13d9edd0 (patch)
tree7450f8355fb7f050066aab3fb94c1073e2080f7a /drivers/input
parentfa9dc265ace9774e62f0e31108e5f47911124bda (diff)
parent504d36e91ac12ccdb0e1193cee7bef9831a1c99e (diff)
Merge branch 'for-linus/samsung4' of git://git.fluff.org/bjdooks/linux
* 'for-linus/samsung4' of git://git.fluff.org/bjdooks/linux: (98 commits) Input: s3c24xx_ts - depend on SAMSUNG_DEV_TS and update menu entry Input: s3c24xx_ts - Add FEAT for Samsung touchscreen support Input: s3c24xx_ts - Implement generic GPIO configuration callback ARM: SAMSUNG: Move s3c64xx dev-ts.c to plat-samsung and rename configuration ARM: SAMSUNG: Implements cfg_gpio function for Samsung touchscreen ARM: S3C64XX: Add touchscreen platform device definition ARM: SAMSUNG: Move mach/ts.h to plat/ts.h ARM: S5PC100: Move i2c helpers from plat-s5pc1xx to mach-s5pc100 ARM: S5PC100: Move frame buffer helpers from plat-s5pc1xx to mach-s5pc100 ARM: S5PC100: gpio.h cleanup ARM: S5PC100: Move gpio support from plat-s5pc1xx to mach-s5pc100 ARM: S5PC100: Use common functions for gpiolib implementation drivers: serial: S5PC100 serial driver cleanup ARM: S5PC100: Pre-requisite clock patch for plat-s5pc1xx to plat-s5p move ARM: SAMSUNG: Copy common I2C0 device helpers to machine directories ARM: SAMSUNG: move driver strength gpio configuration helper to common dir ARM: S5PV210: Add GPIOlib support ARM: SAMSUNGy: fix broken timer irq base ARM: SMDK6440: Add audio devices on board ARM: S5P6440: Add audio platform devices ...
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/touchscreen/Kconfig4
-rw-r--r--drivers/input/touchscreen/s3c2410_ts.c40
2 files changed, 18 insertions, 26 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 3d1ade2e5196..6c0f1712f55b 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -142,8 +142,8 @@ config TOUCHSCREEN_FUJITSU
module will be called fujitsu-ts.
config TOUCHSCREEN_S3C2410
- tristate "Samsung S3C2410 touchscreen input driver"
- depends on ARCH_S3C2410
+ tristate "Samsung S3C2410/generic touchscreen input driver"
+ depends on ARCH_S3C2410 || SAMSUNG_DEV_TS
select S3C24XX_ADC
help
Say Y here if you have the s3c2410 touchscreen.
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 98a7d1279486..e0b7c834111d 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -37,9 +37,7 @@
#include <plat/adc.h>
#include <plat/regs-adc.h>
-
-#include <mach/regs-gpio.h>
-#include <mach/ts.h>
+#include <plat/ts.h>
#define TSC_SLEEP (S3C2410_ADCTSC_PULL_UP_DISABLE | S3C2410_ADCTSC_XY_PST(0))
@@ -57,6 +55,8 @@
S3C2410_ADCTSC_AUTO_PST | \
S3C2410_ADCTSC_XY_PST(0))
+#define FEAT_PEN_IRQ (1 << 0) /* HAS ADCCLRINTPNDNUP */
+
/* Per-touchscreen data. */
/**
@@ -71,6 +71,7 @@
* @irq_tc: The interrupt number for pen up/down interrupt
* @count: The number of samples collected.
* @shift: The log2 of the maximum count to read in one go.
+ * @features: The features supported by the TSADC MOdule.
*/
struct s3c2410ts {
struct s3c_adc_client *client;
@@ -83,26 +84,12 @@ struct s3c2410ts {
int irq_tc;
int count;
int shift;
+ int features;
};
static struct s3c2410ts ts;
/**
- * s3c2410_ts_connect - configure gpio for s3c2410 systems
- *
- * Configure the GPIO for the S3C2410 system, where we have external FETs
- * connected to the device (later systems such as the S3C2440 integrate
- * these into the device).
-*/
-static inline void s3c2410_ts_connect(void)
-{
- s3c2410_gpio_cfgpin(S3C2410_GPG(12), S3C2410_GPG12_XMON);
- s3c2410_gpio_cfgpin(S3C2410_GPG(13), S3C2410_GPG13_nXPON);
- s3c2410_gpio_cfgpin(S3C2410_GPG(14), S3C2410_GPG14_YMON);
- s3c2410_gpio_cfgpin(S3C2410_GPG(15), S3C2410_GPG15_nYPON);
-}
-
-/**
* get_down - return the down state of the pen
* @data0: The data read from ADCDAT0 register.
* @data1: The data read from ADCDAT1 register.
@@ -188,6 +175,11 @@ static irqreturn_t stylus_irq(int irq, void *dev_id)
else
dev_info(ts.dev, "%s: count=%d\n", __func__, ts.count);
+ if (ts.features & FEAT_PEN_IRQ) {
+ /* Clear pen down/up interrupt */
+ writel(0x0, ts.io + S3C64XX_ADCCLRINTPNDNUP);
+ }
+
return IRQ_HANDLED;
}
@@ -296,9 +288,9 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev)
goto err_clk;
}
- /* Configure the touchscreen external FETs on the S3C2410 */
- if (!platform_get_device_id(pdev)->driver_data)
- s3c2410_ts_connect();
+ /* inititalise the gpio */
+ if (info->cfg_gpio)
+ info->cfg_gpio(to_platform_device(ts.dev));
ts.client = s3c_adc_register(pdev, s3c24xx_ts_select,
s3c24xx_ts_conversion, 1);
@@ -334,6 +326,7 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev)
ts.input->id.version = 0x0102;
ts.shift = info->oversampling_shift;
+ ts.features = platform_get_device_id(pdev)->driver_data;
ret = request_irq(ts.irq_tc, stylus_irq, IRQF_DISABLED,
"s3c2410_ts_pen", ts.input);
@@ -420,15 +413,14 @@ static struct dev_pm_ops s3c_ts_pmops = {
#endif
static struct platform_device_id s3cts_driver_ids[] = {
- { "s3c2410-ts", 0 },
- { "s3c2440-ts", 1 },
+ { "s3c64xx-ts", FEAT_PEN_IRQ },
{ }
};
MODULE_DEVICE_TABLE(platform, s3cts_driver_ids);
static struct platform_driver s3c_ts_driver = {
.driver = {
- .name = "s3c24xx-ts",
+ .name = "samsung-ts",
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &s3c_ts_pmops,