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authorLee Jones <lee.jones@linaro.org>2012-09-28 13:29:07 +0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-11-28 11:05:11 +0400
commit31fbcda71489d8cbe2b82819eaab4818524e3a49 (patch)
tree0f19938312a79b229877e31dc728fba75c73a688 /arch/arm/mach-ux500
parent8c587f7709f7f6377842968562bcf51ee6f47f09 (diff)
downloadlinux-31fbcda71489d8cbe2b82819eaab4818524e3a49.tar.xz
Input: bu21013_ts - move GPIO init and exit functions into the driver
These GPIO init and exit functions have no place in platform data, they should be part of the driver instead, Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'arch/arm/mach-ux500')
-rw-r--r--arch/arm/mach-ux500/board-mop500-stuib.c71
1 files changed, 1 insertions, 70 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-stuib.c b/arch/arm/mach-ux500/board-mop500-stuib.c
index 564f57d5d8a7..7e1f294f0434 100644
--- a/arch/arm/mach-ux500/board-mop500-stuib.c
+++ b/arch/arm/mach-ux500/board-mop500-stuib.c
@@ -77,9 +77,6 @@ static struct i2c_board_info __initdata mop500_i2c0_devices_stuib[] = {
* BU21013 ROHM touchscreen interface on the STUIBs
*/
-/* tracks number of bu21013 devices being enabled */
-static int bu21013_devices;
-
#define TOUCH_GPIO_PIN 84
#define TOUCH_XMAX 384
@@ -88,73 +85,8 @@ static int bu21013_devices;
#define PRCMU_CLOCK_OCR 0x1CC
#define TSC_EXT_CLOCK_9_6MHZ 0x840000
-/**
- * bu21013_gpio_board_init : configures the touch panel.
- * @reset_pin: reset pin number
- * This function can be used to configures
- * the voltage and reset the touch panel controller.
- */
-static int bu21013_gpio_board_init(int reset_pin)
-{
- int retval = 0;
-
- bu21013_devices++;
- if (bu21013_devices == 1) {
- retval = gpio_request(reset_pin, "touchp_reset");
- if (retval) {
- printk(KERN_ERR "Unable to request gpio reset_pin");
- return retval;
- }
- retval = gpio_direction_output(reset_pin, 1);
- if (retval < 0) {
- printk(KERN_ERR "%s: gpio direction failed\n",
- __func__);
- return retval;
- }
- }
-
- return retval;
-}
-
-/**
- * bu21013_gpio_board_exit : deconfigures the touch panel controller
- * @reset_pin: reset pin number
- * This function can be used to deconfigures the chip selection
- * for touch panel controller.
- */
-static int bu21013_gpio_board_exit(int reset_pin)
-{
- int retval = 0;
-
- if (bu21013_devices == 1) {
- retval = gpio_direction_output(reset_pin, 0);
- if (retval < 0) {
- printk(KERN_ERR "%s: gpio direction failed\n",
- __func__);
- return retval;
- }
- gpio_set_value(reset_pin, 0);
- }
- bu21013_devices--;
-
- return retval;
-}
-
-/**
- * bu21013_read_pin_val : get the interrupt pin value
- * This function can be used to get the interrupt pin value for touch panel
- * controller.
- */
-static int bu21013_read_pin_val(void)
-{
- return gpio_get_value(TOUCH_GPIO_PIN);
-}
-
static struct bu21013_platform_device tsc_plat_device = {
- .cs_en = bu21013_gpio_board_init,
- .cs_dis = bu21013_gpio_board_exit,
- .irq_read_val = bu21013_read_pin_val,
- .irq = NOMADIK_GPIO_TO_IRQ(TOUCH_GPIO_PIN),
+ .touch_pin = TOUCH_GPIO_PIN,
.touch_x_max = TOUCH_XMAX,
.touch_y_max = TOUCH_YMAX,
.ext_clk = false,
@@ -171,7 +103,6 @@ static struct i2c_board_info __initdata u8500_i2c3_devices_stuib[] = {
I2C_BOARD_INFO("bu21013_tp", 0x5D),
.platform_data = &tsc_plat_device,
},
-
};
void __init mop500_stuib_init(void)