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| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2017-09-03 10:43:45 -0700 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-09-21 11:21:56 +0200 |
| commit | 14cd18a89337b2fe509f2a70bea734c488d7a698 (patch) | |
| tree | 2ae520326173c353af5b2b6356f99791f4120b19 /arch/arm/mach-ep93xx | |
| parent | 80320927723ff6466b054eccdb673105179c036d (diff) | |
| download | linux-stable-14cd18a89337b2fe509f2a70bea734c488d7a698.tar.gz linux-stable-14cd18a89337b2fe509f2a70bea734c488d7a698.tar.bz2 linux-stable-14cd18a89337b2fe509f2a70bea734c488d7a698.zip | |
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>
Diffstat (limited to 'arch/arm/mach-ep93xx')
| -rw-r--r-- | arch/arm/mach-ep93xx/simone.c | 54 |
1 files changed, 3 insertions, 51 deletions
diff --git a/arch/arm/mach-ep93xx/simone.c b/arch/arm/mach-ep93xx/simone.c index c7a40f245892..1c353868f211 100644 --- a/arch/arm/mach-ep93xx/simone.c +++ b/arch/arm/mach-ep93xx/simone.c @@ -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 = { |