[PATCH 1/3] mmc: s5p_sdhci: remove duplicated card detect code

[Sam Protsenko]

On Sun, Jul 20, 2025 at 12:00 PM Henrik Grimler <henrik at grimler.se> wrote:
>
> The common sdhci infrastructure is already parsing the cd-gpios
> property, since commit 451931ea7002 ("mmc: sdhci: Read cd-gpio from
> devicetree"). The s5p code is therefore duplicated, and also broken
> since it assumes that the GPIO value is inverted, while the sdhci code
> correctly follows the ACTIVE_LOW/ACTIVE_HIGH flag specified in the
> device tree.
>
> This fix was originally authored by Simon Shields:
> https://github.com/fourkbomb/u-boot/commit/2eac9dea7903
>
> The change has been tested on exynos4210-i9100, a device similar to
> exynos4210-trats.
>
> Signed-off-by: Henrik Grimler <henrik at grimler.se>
> ---

Reviewed-by: Sam Protsenko <semen.protsenko at linaro.org>

>  drivers/mmc/s5p_sdhci.c | 10 ----------
>  1 file changed, 10 deletions(-)
>
> diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c
> index 278019f02abbe7ee7f16c48758af3b48449ec078..b2faecefc00f479f53c2c6156da66a8fe46e4529 100644
> --- a/drivers/mmc/s5p_sdhci.c
> +++ b/drivers/mmc/s5p_sdhci.c
> @@ -141,14 +141,6 @@ static int do_sdhci_init(struct sdhci_host *host)
>                 }
>         }
>
> -       if (dm_gpio_is_valid(&host->cd_gpio)) {
> -               ret = dm_gpio_get_value(&host->cd_gpio);
> -               if (ret) {
> -                       debug("no SD card detected (%d)\n", ret);
> -                       return -ENODEV;
> -               }
> -       }
> -
>         return s5p_sdhci_core_init(host);
>  }
>
> @@ -183,8 +175,6 @@ static int sdhci_get_config(const void *blob, int node, struct sdhci_host *host)
>
>         gpio_request_by_name_nodev(offset_to_ofnode(node), "pwr-gpios", 0,
>                                    &host->pwr_gpio, GPIOD_IS_OUT);
> -       gpio_request_by_name_nodev(offset_to_ofnode(node), "cd-gpios", 0,
> -                                  &host->cd_gpio, GPIOD_IS_IN);
>
>         return 0;
>  }
>
> --
> 2.50.1
>