Re: [PATCH 10/11] drm/imx/tve: convert to struct drm_edid

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On Tue, May 14, 2024 at 03:55:16PM +0300, Jani Nikula wrote:
> Prefer the struct drm_edid based functions for reading the EDID and
> updating the connector.
> 
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> 
> ---
> 
> Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Cc: Maxime Ripard <mripard@xxxxxxxxxx>
> Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
> Cc: Fabio Estevam <festevam@xxxxxxxxx>
> Cc: imx@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> ---
>  drivers/gpu/drm/imx/ipuv3/imx-tve.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/imx/ipuv3/imx-tve.c b/drivers/gpu/drm/imx/ipuv3/imx-tve.c
> index b49bddb85535..29f494bfff67 100644
> --- a/drivers/gpu/drm/imx/ipuv3/imx-tve.c
> +++ b/drivers/gpu/drm/imx/ipuv3/imx-tve.c
> @@ -201,18 +201,16 @@ static int tve_setup_vga(struct imx_tve *tve)
>  static int imx_tve_connector_get_modes(struct drm_connector *connector)
>  {
>  	struct imx_tve *tve = con_to_tve(connector);
> -	struct edid *edid;
> -	int ret = 0;
> +	const struct drm_edid *drm_edid;
> +	int ret;
>  
>  	if (!tve->ddc)
>  		return 0;
>  
> -	edid = drm_get_edid(connector, tve->ddc);
> -	if (edid) {
> -		drm_connector_update_edid_property(connector, edid);
> -		ret = drm_add_edid_modes(connector, edid);
> -		kfree(edid);
> -	}
> +	drm_edid = drm_edid_read_ddc(connector, tve->ddc);
> +	drm_edid_connector_update(connector, drm_edid);
> +	ret = drm_edid_connector_add_modes(connector);
> +	drm_edid_free(drm_edid);

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

Nit: if you change two last lines, you can drop ret= assignment and use
return drm_edid_connector_add_modes(connector).

Maybe we shoud add cocci rule for such cases.

>  
>  	return ret;
>  }
> -- 
> 2.39.2
> 

-- 
With best wishes
Dmitry



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