linux-kernel - Re: [PATCH 28/30] drm/sti: sti_vdo: Use drm_bridge

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Date:   Tue, 26 Nov 2019 20:37:40 +0100
From:   Sam Ravnborg <sam@...nborg.org>
To:     Mihail Atanassov <Mihail.Atanassov@....com>
Cc:     "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        David Airlie <airlied@...ux.ie>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        nd <nd@....com>, Vincent Abriou <vincent.abriou@...com>
Subject: Re: [PATCH 28/30] drm/sti: sti_vdo: Use drm_bridge_init()

Hi Mihail.

On Tue, Nov 26, 2019 at 01:16:26PM +0000, Mihail Atanassov wrote:
> No functional change.
> 
> Signed-off-by: Mihail Atanassov <mihail.atanassov@....com>
> ---
>  drivers/gpu/drm/sti/sti_dvo.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
> index 68289b0b063a..20a3956b33bc 100644
> --- a/drivers/gpu/drm/sti/sti_dvo.c
> +++ b/drivers/gpu/drm/sti/sti_dvo.c
> @@ -462,9 +462,7 @@ static int sti_dvo_bind(struct device *dev, struct device *master, void *data)
>  	if (!bridge)
>  		return -ENOMEM;
>  
> -	bridge->driver_private = dvo;
> -	bridge->funcs = &sti_dvo_bridge_funcs;
> -	bridge->of_node = dvo->dev.of_node;
> +	drm_bridge_init(bridge, &dvo->dev, &sti_dvo_bridge_funcs, NULL, dvo);
>  	drm_bridge_add(bridge);
>  
>  	err = drm_bridge_attach(encoder, bridge, NULL);

I can see from grepping that bridge.driver_private is used
in a couple of other files in sti/

Like sti_hdmi.c:
        bridge->driver_private = hdmi;
        bridge->funcs = &sti_hdmi_bridge_funcs;
        drm_bridge_attach(encoder, bridge, NULL);


I wonder if a drm_bridge_init() should be added there.
I did not look closely - but it looked suspisiously.

	Sam