diff options
| author | Heinrich Schuchardt <heinrich.schuchardt@canonical.com> | 2024-07-21 08:59:07 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-09-05 19:08:14 -0600 |
| commit | cbaf53fdf12534be50075fdd84105c682955424f (patch) | |
| tree | 08fc9ab1714a1bfe606926d5d3ff93d9c2e74a95 | |
| parent | e24c8cc65841b8885cca7910a43096a976b7244b (diff) | |
mmc: consider cd-gpios in Synopsys DesignWare driver
The JH7110 SoC uses a GPIO for card detect.
* In the of_to_plat function check if a cd-gpios definition exists and
request the GPIO.
* In the getcd function return the GPIO value in this case.
Reported-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
| -rw-r--r-- | drivers/mmc/snps_dw_mmc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/snps_dw_mmc.c b/drivers/mmc/snps_dw_mmc.c index f30331e51f7..47ab5654bd6 100644 --- a/drivers/mmc/snps_dw_mmc.c +++ b/drivers/mmc/snps_dw_mmc.c @@ -12,6 +12,7 @@ #include <dwmmc.h> #include <errno.h> #include <fdtdec.h> +#include <asm/gpio.h> #include <dm/device_compat.h> #include <linux/libfdt.h> #include <linux/err.h> @@ -29,6 +30,7 @@ struct snps_dwmci_plat { struct snps_dwmci_priv_data { struct dwmci_host host; u32 f_max; + struct gpio_desc cd_gpio; }; static int snps_dwmmc_clk_setup(struct udevice *dev) @@ -104,6 +106,10 @@ static int snps_dwmmc_of_to_plat(struct udevice *dev) if (!ret && priv->f_max < CLOCK_MIN) return -EINVAL; + if (CONFIG_IS_ENABLED(DM_GPIO)) + gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, + GPIOD_IS_IN); + host->fifo_mode = dev_read_bool(dev, "fifo-mode"); host->name = dev->name; host->dev_index = 0; @@ -117,6 +123,9 @@ int snps_dwmmc_getcd(struct udevice *dev) struct snps_dwmci_priv_data *priv = dev_get_priv(dev); struct dwmci_host *host = &priv->host; + if (CONFIG_IS_ENABLED(DM_GPIO) && dm_gpio_is_valid(&priv->cd_gpio)) + return dm_gpio_get_value(&priv->cd_gpio); + return !(dwmci_readl(host, DWMCI_CDETECT) & 1); } |