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ARM: AT91: Add the ADC to the sam9g20ek board

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This patch adds platform data for the AT91 ADC driver support for
the AT91SAM9G20-EK board.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Maxime Ripard
2012-05-11 15:35:34 +02:00
committed by Greg Kroah-Hartman
parent 0e589d5fb3
commit 67b5d7b3e2
3 changed files with 112 additions and 0 deletions
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14
arch/arm/mach-at91/board-sam9g20ek.c
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@@ -32,6 +32,8 @@
#include <linux/regulator/fixed.h>
#include <linux/regulator/consumer.h>
#include <linux/platform_data/at91_adc.h>
#include <mach/hardware.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
@@ -318,6 +320,16 @@ static void __init ek_add_device_buttons(void)
static void __init ek_add_device_buttons(void) {}
#endif
/*
* ADCs
*/
static struct at91_adc_data ek_adc_data = {
.channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3),
.use_external_triggers = true,
.vref = 3300,
};
#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
REGULATOR_SUPPLY("AVDD", "0-001b"),
@@ -393,6 +405,8 @@ static void __init ek_board_init(void)
ek_add_device_gpio_leds();
/* Push Buttons */
ek_add_device_buttons();
/* ADCs */
at91_add_device_adc(&ek_adc_data);
/* PCK0 provides MCLK to the WM8731 */
at91_set_B_periph(AT91_PIN_PC1, 0);
/* SSC (for WM8731) */