diff options
| author | dipen <dpatel@marvell.com> | 2012-08-10 16:42:44 -0400 |
|---|---|---|
| committer | Lubomir Rintel <lkundrak@v3.sk> | 2019-07-22 19:39:59 +0200 |
| commit | 012f9974a348e2f394fd2348a393f21707a0bdbc (patch) | |
| tree | 63f107432e62633f3909ef227d19b914b52e2eca | |
| parent | 3b2f5d4ae437212dbe0a6ec12cbedb2667e48438 (diff) | |
| download | linux-mmp3-dell-ariel-012f9974a348e2f394fd2348a393f21707a0bdbc.tar.gz | |
QSEVEN tsc2007 qseven touch screen support
Signed-off-by: dipen <dpatel@marvell.com>
Signed-off-by: Kiran Vedere <kvedere@marvell.com>
| -rw-r--r-- | arch/arm/mach-mmp/qseven.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/qseven.c b/arch/arm/mach-mmp/qseven.c index 1c8f4d19989e89..b2d703b386d4fc 100644 --- a/arch/arm/mach-mmp/qseven.c +++ b/arch/arm/mach-mmp/qseven.c @@ -228,6 +228,59 @@ static struct pxa27x_keypad_platform_data mmp3_keypad_info = { .active_low = 1, }; +#if defined(CONFIG_TOUCHSCREEN_TSC2007) +static int tsc2007_init_gpio_irq(void) +{ + int gpio = mfp_to_gpio(TSI_INT_N); + + if (gpio_request(gpio, "TSC2007 GPIO irq")) { + pr_err("gpio %d request failed\n", gpio); + return -1; + } + gpio_direction_input(gpio); + mdelay(100); + gpio_free(gpio); + return 0; +} + +static int tsc_2007_pen_state(void) +{ + int temp = mfp_to_gpio(TSI_INT_N); + int value; + if (gpio_request(temp, "TSC2007 GPIO")) { + pr_err("gpio %d request failed\n", temp); + return -1; + } + gpio_direction_input(temp); + value = gpio_get_value(temp); + gpio_free(temp); + return !value; +} + +struct tsc2007_platform_data tsc_2007_data = { + .model = 2007, + .x_plate_ohms = 180, + .init_platform_hw = NULL, + .get_pendown_state = tsc_2007_pen_state, + .clear_penirq = NULL, + .exit_platform_hw = NULL, + .poll_delay = 1, + .poll_period = 1, + +}; +#endif + +static struct i2c_board_info qseven_twsi4_info[] = { +#if defined(CONFIG_TOUCHSCREEN_TSC2007) + { + .type = "tsc2007", + .addr = (0x90>>1), + .irq = IRQ_GPIO(mfp_to_gpio(TSI_INT_N)), + .platform_data = &tsc_2007_data, + }, +#endif +}; + #ifdef CONFIG_REGULATOR_88PM867 #define PMIC_POWER_MAX MAR88PM867_VREG_MAX @@ -627,6 +680,12 @@ static void __init qseven_init(void) mmp3_add_twsi(1, NULL, ARRAY_AND_SIZE(qseven_twsi1_mar88pm867_info)); #endif +#if defined(CONFIG_TOUCHSCREEN_TSC2007) + tsc2007_init_gpio_irq(); +#endif + + mmp3_add_twsi(4, NULL, ARRAY_AND_SIZE(qseven_twsi4_info)); + mmp3_add_keypad(&mmp3_keypad_info); mmp3_add_videosram(&mmp3_videosram_info); |