linux-kernel - Re: [PATCH] drm/bridge/adv7511: set the bridge type properly

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Date:   Wed, 22 Jul 2020 15:15:54 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Laurentiu Palcu <laurentiu.palcu@....nxp.com>
Cc:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, linux-imx@....com,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/bridge/adv7511: set the bridge type properly

Hi Laurentiu,

Thank you for the patch.

On Mon, Jul 20, 2020 at 03:42:27PM +0300, Laurentiu Palcu wrote:
> From: Laurentiu Palcu <laurentiu.palcu@....com>
> 
> After the drm_bridge_connector_init() helper function has been added, the ADV
> driver has been changed accordingly. However, the 'type' field of the bridge
> structure was left unset, which makes the helper function always return -EINVAL.
> 
> Signed-off-by: Laurentiu Palcu <laurentiu.palcu@....com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
> Hi,
> 
> I've hit this while trying to use this helper in the new i.MX8MQ DCSS
> driver, as suggested by Sam, and I wanted to test it with NWL MIPI_DSI and
> ADV since support is already in mainline.
> 
>  drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> index f45cdca9cce5..a0d392c338da 100644
> --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> @@ -1283,6 +1283,7 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
>  	adv7511->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID
>  			    | DRM_BRIDGE_OP_HPD;
>  	adv7511->bridge.of_node = dev->of_node;
> +	adv7511->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
>  
>  	drm_bridge_add(&adv7511->bridge);
>  

-- 
Regards,

Laurent Pinchart