diff options
| author | Andrew Victor <linux@maxim.org.za> | 2008-09-18 22:45:35 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-22 01:58:39 +0400 |
| commit | f7647e63f32c501e8b59ccfdac50eb3d3e897c41 (patch) | |
| tree | c6987bc3c06b09f0c21b3b16077a2032d00a4d29 /arch/arm/mach-at91 | |
| parent | a7307bf22557e1e029df0ea6f2a2973de4d9c135 (diff) | |
| download | linux-f7647e63f32c501e8b59ccfdac50eb3d3e897c41.tar.xz | |
[ARM] 5260/1: [AT91] Touchscreen on AT91SAM9RL
This patch adds initialization of the Touchscreen controller for the
AT91SAM9RL processor.
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Signed-off-by: Dan Liang <dan.liang@atmel.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/at91sam9rl_devices.c | 45 | ||||
| -rw-r--r-- | arch/arm/mach-at91/board-sam9rlek.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-at91/include/mach/board.h | 3 |
3 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index 3f9fed4902b8..87deb1e1b529 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -527,6 +527,51 @@ static void __init at91_add_device_tc(void) { } /* -------------------------------------------------------------------- + * Touchscreen + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE) +static u64 tsadcc_dmamask = DMA_BIT_MASK(32); + +static struct resource tsadcc_resources[] = { + [0] = { + .start = AT91SAM9RL_BASE_TSC, + .end = AT91SAM9RL_BASE_TSC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9RL_ID_TSC, + .end = AT91SAM9RL_ID_TSC, + .flags = IORESOURCE_IRQ, + } +}; + +static struct platform_device at91sam9rl_tsadcc_device = { + .name = "atmel_tsadcc", + .id = -1, + .dev = { + .dma_mask = &tsadcc_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = tsadcc_resources, + .num_resources = ARRAY_SIZE(tsadcc_resources), +}; + +void __init at91_add_device_tsadcc(void) +{ + at91_set_A_periph(AT91_PIN_PA17, 0); /* AD0_XR */ + at91_set_A_periph(AT91_PIN_PA18, 0); /* AD1_XL */ + at91_set_A_periph(AT91_PIN_PA19, 0); /* AD2_YT */ + at91_set_A_periph(AT91_PIN_PA20, 0); /* AD3_TB */ + + platform_device_register(&at91sam9rl_tsadcc_device); +} +#else +void __init at91_add_device_tsadcc(void) {} +#endif + + +/* -------------------------------------------------------------------- * RTC * -------------------------------------------------------------------- */ diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c index 3d3f61572cff..270851864308 100644 --- a/arch/arm/mach-at91/board-sam9rlek.c +++ b/arch/arm/mach-at91/board-sam9rlek.c @@ -195,6 +195,8 @@ static void __init ek_board_init(void) at91_add_device_mmc(0, &ek_mmc_data); /* LCD Controller */ at91_add_device_lcdc(&ek_lcdc_data); + /* Touch Screen Controller */ + at91_add_device_tsadcc(); } MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK") diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h index e852609d802f..fb51f0e0a83f 100644 --- a/arch/arm/mach-at91/include/mach/board.h +++ b/arch/arm/mach-at91/include/mach/board.h @@ -172,6 +172,9 @@ extern void __init at91_add_device_ac97(struct atmel_ac97_data *data); /* ISI */ extern void __init at91_add_device_isi(void); + /* Touchscreen Controller */ +extern void __init at91_add_device_tsadcc(void); + /* LEDs */ extern void __init at91_init_leds(u8 cpu_led, u8 timer_led); extern void __init at91_gpio_leds(struct gpio_led *leds, int nr); |