linux-kernel - Re: [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in s6d7aa0

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Date:   Thu, 8 Jun 2023 11:36:06 +0200
From:   Andi Shyti <andi.shyti@...ux.intel.com>
To:     Wang Jianzheng <wangjianzheng@...o.com>
Cc:     Artur Weber <aweber.kernel@...il.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        "open list:DRM PANEL DRIVERS" <dri-devel@...ts.freedesktop.org>,
        open list <linux-kernel@...r.kernel.org>,
        opensource.kernel@...o.com
Subject: Re: [PATCH] drm/panel: s6d7aa0: remove the unneeded variable in
 s6d7aa0_lock

Hi Jianzheng,

On Thu, Jun 08, 2023 at 11:34:46AM +0800, Wang Jianzheng wrote:
> Remove unneeded variable and directly return 0.
> 
> Signed-off-by: Wang Jianzheng <wangjianzheng@...o.com>
> ---
>  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> index 102e1fc7ee38..fec0d014fd0e 100644
> --- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> +++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
> @@ -66,7 +66,6 @@ static void s6d7aa0_reset(struct s6d7aa0 *ctx)
>  static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)

actually this function can completely made void.

>  {
>  	struct mipi_dsi_device *dsi = ctx->dsi;
> -	int ret = 0;
>  
>  	if (lock) {
>  		mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD1, 0xa5, 0xa5);
> @@ -80,7 +79,7 @@ static int s6d7aa0_lock(struct s6d7aa0 *ctx, bool lock)
>  			mipi_dsi_dcs_write_seq(dsi, MCS_PASSWD3, 0xa5, 0xa5);
>  	}
>  
> -	return ret;
> +	return 0;

Anyway the patch is fine:

Reviewed-by: Andi Shyti <andi.shyti@...ux.intel.com> 

Andi

>  }
>  
>  static int s6d7aa0_on(struct s6d7aa0 *ctx)
> -- 
> 2.39.0