diff options
| author | Robert Collins <rcollins@nvidia.com> | 2010-12-22 18:20:06 +0530 |
|---|---|---|
| committer | Bharat Nihalani <bnihalani@nvidia.com> | 2010-12-23 01:01:15 -0800 |
| commit | c1e7dd730c5d2aab3f85f8ce37b4d47e75314d1f (patch) | |
| tree | 243a1c96c1f96efbb3eee0bf6baf0536a596acc3 /arch | |
| parent | e413372af03ec3ef0379ede6e74ebee3328f27d5 (diff) | |
ARM: tegra: Atmel touchscreen board support
Implemented auto-detect for Atmel/Cypress-Panjit touch screens
Change-Id: I551ef2a040c2ab1bac8660714807218cbc0e5856
Reviewed-on: http://git-master/r/12632
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/board-ventana.c | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/arch/arm/mach-tegra/board-ventana.c b/arch/arm/mach-tegra/board-ventana.c index 42cc3806dece..ec2ed8bc0e9e 100644 --- a/arch/arm/mach-tegra/board-ventana.c +++ b/arch/arm/mach-tegra/board-ventana.c @@ -383,12 +383,12 @@ static int __init ventana_touch_init_panjit(void) * Reads the CHANGELINE state; interrupt is valid if the changeline * is low. */ -static u8 read_chg() +static u8 read_chg(void) { return gpio_get_value(TEGRA_GPIO_PV6); } -static u8 valid_interrupt() +static u8 valid_interrupt(void) { return !read_chg(); } @@ -447,13 +447,13 @@ static struct tegra_ehci_platform_data tegra_ehci_pdata[] = { }, }; -static void ventana_usb_init() +static void ventana_usb_init(void) { tegra_ehci3_device.dev.platform_data=&tegra_ehci_pdata[2]; platform_device_register(&tegra_ehci3_device); } -struct platform_device *tegra_usb_otg_host_register() +struct platform_device *tegra_usb_otg_host_register(void) { struct platform_device *pdev; void *platform_data; @@ -529,6 +529,10 @@ static void __init ventana_power_off_init(void) static void __init tegra_ventana_init(void) { char serial[20]; +#if defined(CONFIG_TOUCHSCREEN_PANJIT_I2C) && \ + defined(CONFIG_TOUCHSCREEN_ATMEL_MT_T9) + struct board_info BoardInfo; +#endif tegra_common_init(); tegra_clk_init_from_table(ventana_clk_init_table); @@ -545,11 +549,30 @@ static void __init tegra_ventana_init(void) ventana_charge_init(); ventana_regulator_init(); -#ifdef CONFIG_TOUCHSCREEN_PANJIT_I2C - ventana_touch_init_panjit(); -#endif -#ifdef CONFIG_TOUCHSCREEN_ATMEL_MT_T9 +#if defined(CONFIG_TOUCHSCREEN_PANJIT_I2C) && \ + defined(CONFIG_TOUCHSCREEN_ATMEL_MT_T9) + +#define NVODM_ATMEL_TOUCHSCREEN 0x0A00 +#define NVODM_PANJIT_TOUCHSCREEN 0x0000 + + tegra_get_board_info(&BoardInfo); + + switch (BoardInfo.sku & 0xFF00) { + case NVODM_ATMEL_TOUCHSCREEN: + pr_info("Initializing Atmel touch driver\n"); + ventana_touch_init_atmel(); + break; + default: + pr_info("Initializing Panjit touch driver\n"); + ventana_touch_init_panjit(); + break; + } +#elif defined(CONFIG_TOUCHSCREEN_ATMEL_MT_T9) + pr_info("Initializing Atmel touch driver\n"); ventana_touch_init_atmel(); +#elif defined(CONFIG_TOUCHSCREEN_PANJIT_I2C) + pr_info("Initializing Panjit touch driver\n"); + ventana_touch_init_panjit(); #endif #ifdef CONFIG_KEYBOARD_GPIO |