linux-kernel - Re: [PATCH v1 1/1] mmc: sdhci-s3c: Replace deprecated of_get_named

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Date: Mon, 25 Mar 2024 14:18:14 +0100
From: Ulf Hansson <ulf.hansson@...aro.org>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Ben Dooks <ben-linux@...ff.org>, Jaehoon Chung <jh80.chung@...sung.com>, 
	Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [PATCH v1 1/1] mmc: sdhci-s3c: Replace deprecated of_get_named_gpio()

On Thu, 7 Mar 2024 at 13:19, Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> It seems the of_get_named_gpio() is solely used to check
> if the GPIO is present in DT as the function can return 0
> if and only if it's present and it becomes in the global
> number space 0. But this quite likely shows that the code
> wasn't ever been tested on the systems when no GPIO is provided.
> In any case, the proper test is just to call of_property_present()
> without any attempts in requesting GPIO (as we haven't saved the
> number or descriptor anywhere in the code).
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Applied for next, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/host/sdhci-s3c.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
> index 0e8a8ac14e56..6493b0edba34 100644
> --- a/drivers/mmc/host/sdhci-s3c.c
> +++ b/drivers/mmc/host/sdhci-s3c.c
> @@ -17,10 +17,8 @@
>  #include <linux/slab.h>
>  #include <linux/clk.h>
>  #include <linux/io.h>
> -#include <linux/gpio.h>
>  #include <linux/module.h>
>  #include <linux/of.h>
> -#include <linux/of_gpio.h>
>  #include <linux/pm.h>
>  #include <linux/pm_runtime.h>
>
> @@ -446,7 +444,7 @@ static int sdhci_s3c_parse_dt(struct device *dev,
>                 return 0;
>         }
>
> -       if (of_get_named_gpio(node, "cd-gpios", 0))
> +       if (of_property_present(node, "cd-gpios"))
>                 return 0;
>
>         /* assuming internal card detect that will be configured by pinctrl */
> --
> 2.43.0.rc1.1.gbec44491f096
>