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SubjectRe: [patch 3/6] xtensa: add spi mmc host to s6105 platform
Date
On Monday 23 March 2009, Daniel Glöckner wrote:
> Signed-off-by: Daniel Glöckner <dg@emlix.com>

Looks OK to me. FWIW I don't expect to ack arch patches
that just use public interfaces...


> ---
> arch/xtensa/platforms/s6105/device.c | 55 ++++++++++++++++++++++++++++++++++
> 1 files changed, 55 insertions(+), 0 deletions(-)
>
> diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c
> index a7ea916..789448e 100644
> --- a/arch/xtensa/platforms/s6105/device.c
> +++ b/arch/xtensa/platforms/s6105/device.c
> @@ -11,9 +11,11 @@
> #include <linux/init.h>
> #include <linux/irq.h>
> #include <linux/phy.h>
> +#include <linux/mmc/host.h>
> #include <linux/platform_device.h>
> #include <linux/serial.h>
> #include <linux/serial_8250.h>
> +#include <linux/spi/mmc_spi.h>
> #include <linux/spi/spi.h>
> #include <linux/spi/spi_s6000.h>
>
> @@ -209,7 +211,60 @@ static __devinitdata struct s6_spi_platform_data s6_spi_pdata = {
> #define S6_SPI_CS_EXPANSION 3
> #define S6_SPI_CS_MMC_SLOT 4
>
> +static int __devinit s6_init_mmc_host(struct device *spi,
> + irqreturn_t (*handler)(int, void *),
> + void *mmc)
> +{
> + int ret;
> + ret = gpio_request(GPIO_SD_WP, "mmc_wp");
> + if (ret < 0)
> + return ret;
> + ret = gpio_request(GPIO_SD_IRQ, "mmc_irq");
> + if (ret < 0)
> + return ret;
> + ret = gpio_direction_input(GPIO_SD_WP);
> + if (ret < 0)
> + return ret;
> + ret = gpio_direction_input(GPIO_SD_IRQ);
> + if (ret < 0)
> + return ret;
> + ret = gpio_to_irq(GPIO_SD_IRQ);
> + if (ret < 0)
> + return ret;
> + ret = request_irq(ret, handler,
> + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
> + "mmc_slot", mmc);
> + return ret;
> +}
> +
> +static void __devexit s6_exit_mmc_host(struct device *spi, void *mmc)
> +{
> + free_irq(gpio_to_irq(GPIO_SD_IRQ), mmc);
> + gpio_free(GPIO_SD_IRQ);
> + gpio_free(GPIO_SD_WP);
> +}
> +
> +static int s6_mmc_get_ro(struct device *spi)
> +{
> + return gpio_get_value(GPIO_SD_WP);
> +}
> +
> +static struct mmc_spi_platform_data s6_spi_mmc_pdata = {
> + .caps = 0,
> + .ocr_mask = MMC_VDD_32_33,
> + .init = s6_init_mmc_host,
> + .exit = __devexit_p(s6_exit_mmc_host),
> + .get_ro = s6_mmc_get_ro,
> +};
> +
> static struct spi_board_info __initdata s6_spi_devices[] = {
> + {
> + .modalias = "mmc_spi",
> + .platform_data = &s6_spi_mmc_pdata,
> + .bus_num = S6_SPI_BUS_NUM,
> + .chip_select = S6_SPI_CS_MMC_SLOT,
> + .max_speed_hz = 50000000,
> + },
> };
>
> static struct platform_device platform_devices[] = {
> --
> 1.6.2.107.ge47ee
>
>



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