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AT91: add platform parameters for atmel_tsadcc in at91sam9rlek 

Setup platform parameters in at91sam9rl-ek board to be passed to
atmel_tsadcc touchscreen.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Nicolas Ferre 2009-11-19 09:31:20 -08:00 committed by Dmitry Torokhov
parent 970435a141
commit 423c9b0dc3
3 changed files with 25 additions and 4 deletions
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10
arch/arm/mach-at91/at91sam9rl_devices.c
View File

@ -622,6 +622,7 @@ static void __init at91_add_device_tc(void) { }
#if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
static struct at91_tsadcc_data tsadcc_data;
static struct resource tsadcc_resources[] = {
[0] = {
@ -642,22 +643,27 @@ static struct platform_device at91sam9rl_tsadcc_device = {
.dev = {
.dma_mask = &tsadcc_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &tsadcc_data,
},
.resource = tsadcc_resources,
.num_resources = ARRAY_SIZE(tsadcc_resources),
};
void __init at91_add_device_tsadcc(void)
void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
{
if (!data)
return;
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 */
tsadcc_data = *data;
platform_device_register(&at91sam9rl_tsadcc_device);
}
#else
void __init at91_add_device_tsadcc(void) {}
void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
#endif

12
arch/arm/mach-at91/board-sam9rlek.c
View File

@ -242,6 +242,16 @@ static struct gpio_led ek_leds[] = {
};
/*
* Touchscreen
*/
static struct at91_tsadcc_data ek_tsadcc_data = {
.adc_clock = 1000000,
.pendet_debounce = 0x0f,
.ts_sample_hold_time = 0x03,
};
/*
* GPIO Buttons
*/
@ -310,7 +320,7 @@ static void __init ek_board_init(void)
/* AC97 */
at91_add_device_ac97(&ek_ac97_data);
/* Touch Screen Controller */
at91_add_device_tsadcc();
at91_add_device_tsadcc(&ek_tsadcc_data);
/* LEDs */
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
/* Push Buttons */

7
arch/arm/mach-at91/include/mach/board.h
View File

@ -186,7 +186,12 @@ extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);
extern void __init at91_add_device_isi(void);
/* Touchscreen Controller */
extern void __init at91_add_device_tsadcc(void);
struct at91_tsadcc_data {
unsigned int adc_clock;
u8 pendet_debounce;
u8 ts_sample_hold_time;
};
extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data);
/* CAN */
struct at91_can_data {