On 01/16/2012 10:36 PM, Maxime Ripard :
> Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
>
> Cc: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
> Cc: Patrice Vilchez <patrice.vilchez@xxxxxxxxx>
> Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
> ---
> arch/arm/mach-at91/at91sam9260_devices.c | 53 ++++++++++++++++++++++++++++++
> arch/arm/mach-at91/board-sam9g20ek.c | 13 +++++++
> 2 files changed, 66 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
> index 39f81f4..3598540 100644
> --- a/arch/arm/mach-at91/at91sam9260_devices.c
> +++ b/arch/arm/mach-at91/at91sam9260_devices.c
> @@ -16,6 +16,8 @@
> #include <linux/platform_device.h>
> #include <linux/i2c-gpio.h>
>
> +#include <linux/platform_data/at91_adc.h>
> +
> #include <mach/board.h>
> #include <mach/gpio.h>
> #include <mach/cpu.h>
> @@ -1312,6 +1314,57 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
> void __init at91_add_device_cf(struct at91_cf_data * data) {}
> #endif
>
> +/* --------------------------------------------------------------------
> + * ADCs
> + * -------------------------------------------------------------------- */
> +
> +#if defined(CONFIG_IIO_AT91_ADC) || defined(CONFIG_IIO_AT91_ADC_MODULE)
> +static struct at91_adc_data adc_data;
> +
> +static struct resource adc_resources[] = {
> + [0] = {
> + .start = AT91SAM9260_BASE_ADC,
> + .end = AT91SAM9260_BASE_ADC + SZ_16K - 1,
> + .flags = IORESOURCE_MEM,
> + },
> + [1] = {
> + .start = AT91SAM9260_ID_ADC,
> + .end = AT91SAM9260_ID_ADC,
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +static struct platform_device at91_adc_device = {
> + .name = "at91_adc",
> + .id = -1,
> + .dev = {
> + .platform_data = &adc_data,
> + },
> + .resource = adc_resources,
> + .num_resources = ARRAY_SIZE(adc_resources),
> +};
> +
> +void __init at91_add_device_adc(struct at91_adc_data *data)
> +{
> + if (!data)
> + return;
> +
> + if (test_bit(0, &data->channels_used))
> + at91_set_A_periph(AT91_PIN_PC0, 0);
> + if (test_bit(1, &data->channels_used))
> + at91_set_A_periph(AT91_PIN_PC1, 0);
> + if (test_bit(2, &data->channels_used))
> + at91_set_A_periph(AT91_PIN_PC2, 0);
> + if (test_bit(3, &data->channels_used))
> + at91_set_A_periph(AT91_PIN_PC3, 0);
> +
> + adc_data = *data;
> + platform_device_register(&at91_adc_device);
> +}
> +#else
> +void __init at91_add_device_adc(struct at91_adc_data *data) {}
> +#endif
> +
> /* -------------------------------------------------------------------- */
> /*
> * These devices are always present and don't need any board-specific
> diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
> index 817f59d..29dae9f 100644
> --- a/arch/arm/mach-at91/board-sam9g20ek.c
> +++ b/arch/arm/mach-at91/board-sam9g20ek.c
> @@ -31,6 +31,8 @@
> #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>
> @@ -314,6 +316,15 @@ 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),
> + .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"),
> @@ -389,6 +400,8 @@ 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) */
--
Nicolas Ferre
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