Re: [PATCH v5 4/4] drm/lcdif: switch to devm_drm_of_get_bridge

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Hello Marek,

Am Freitag, 19. August 2022, 16:08:52 CEST schrieb Marek Vasut:
> The function "drm_of_find_panel_or_bridge" has been deprecated in
> favor of "devm_drm_of_get_bridge".
> 
> Switch to the new function and reduce boilerplate.
> 
> Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Reviewed-by: Liu Ying <victor.liu@xxxxxxx>
> Reported-by: Liu Ying <victor.liu@xxxxxxxxxxx>
> Tested-by: Martyn Welch <martyn.welch@xxxxxxxxxxxxx>
> Fixes: 9db35bb349a0e ("drm: lcdif: Add support for i.MX8MP LCDIF variant")
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: Liu Ying <victor.liu@xxxxxxx>
> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> Cc: Marek Vasut <marex@xxxxxxx>
> Cc: Martyn Welch <martyn.welch@xxxxxxxxxxxxx>
> Cc: Peng Fan <peng.fan@xxxxxxx>
> Cc: Robby Cai <robby.cai@xxxxxxx>
> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Cc: Stefan Agner <stefan@xxxxxxxx>
> ---
> V2: Add RB from Liu
> V3: Add TB from Martyn from V1
> V4: Add AB from Sam from V2
> V5: Rebase on current drm-misc-next
> ---
>  drivers/gpu/drm/mxsfb/lcdif_drv.c | 18 +++---------------
>  1 file changed, 3 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mxsfb/lcdif_drv.c
> b/drivers/gpu/drm/mxsfb/lcdif_drv.c index 4f16947212b60..075002ed6fb09
> 100644
> --- a/drivers/gpu/drm/mxsfb/lcdif_drv.c
> +++ b/drivers/gpu/drm/mxsfb/lcdif_drv.c
> @@ -42,23 +42,11 @@ static int lcdif_attach_bridge(struct lcdif_drm_private
> *lcdif) {
>  	struct drm_device *drm = lcdif->drm;
>  	struct drm_bridge *bridge;
> -	struct drm_panel *panel;
>  	int ret;
> 
> -	ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel,
> -					  &bridge);
> -	if (ret)
> -		return ret;
> -
> -	if (panel) {
> -		bridge = devm_drm_panel_bridge_add_typed(drm->dev, 
panel,
> -							 
DRM_MODE_CONNECTOR_DPI);
> -		if (IS_ERR(bridge))
> -			return PTR_ERR(bridge);
> -	}
> -
> -	if (!bridge)
> -		return -ENODEV;
> +	bridge = devm_drm_of_get_bridge(drm->dev, drm->dev->of_node, 0, 0);
> +	if (IS_ERR(bridge))
> +		return PTR_ERR(bridge);
> 
>  	ret = drm_bridge_attach(&lcdif->encoder, bridge, NULL, 0);
>  	if (ret)


Reviewed-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>






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