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ARM: ep93xx: simone: let the mmc_spi driver handle the card detect 

This board uses a GPIO for the MMC card detect. Let the mmc_spi
driver handle it instead of the platform code.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
H Hartley Sweeten 2017-09-03 10:43:45 -07:00 committed by Linus Walleij
parent 8032092772
commit 14cd18a893
1 changed files with 3 additions and 51 deletions
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54
arch/arm/mach-ep93xx/simone.c
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@ -43,60 +43,12 @@ static struct ep93xxfb_mach_info __initdata simone_fb_info = {
.flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
};
/*
* GPIO lines used for MMC card detection.
*/
#define MMC_CARD_DETECT_GPIO EP93XX_GPIO_LINE_EGPIO0
/*
* MMC card detection GPIO setup.
*/
static int simone_mmc_spi_init(struct device *dev,
irqreturn_t (*irq_handler)(int, void *), void *mmc)
{
unsigned int gpio = MMC_CARD_DETECT_GPIO;
int irq, err;
err = gpio_request(gpio, dev_name(dev));
if (err)
return err;
err = gpio_direction_input(gpio);
if (err)
goto fail;
irq = gpio_to_irq(gpio);
if (irq < 0)
goto fail;
err = request_irq(irq, irq_handler, IRQF_TRIGGER_FALLING,
"MMC card detect", mmc);
if (err)
goto fail;
printk(KERN_INFO "%s: using irq %d for MMC card detection\n",
dev_name(dev), irq);
return 0;
fail:
gpio_free(gpio);
return err;
}
static void simone_mmc_spi_exit(struct device *dev, void *mmc)
{
unsigned int gpio = MMC_CARD_DETECT_GPIO;
free_irq(gpio_to_irq(gpio), mmc);
gpio_free(gpio);
}
static struct mmc_spi_platform_data simone_mmc_spi_data = {
.init = simone_mmc_spi_init,
.exit = simone_mmc_spi_exit,
.detect_delay = 500,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.flags = MMC_SPI_USE_CD_GPIO,
.cd_gpio = EP93XX_GPIO_LINE_EGPIO0,
.cd_debounce = 1,
};
static struct spi_board_info simone_spi_devices[] __initdata = {