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From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Rob Clark <robdclark@gmail.com>
Cc: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	freedreno@lists.freedesktop.org,
	Stephen Boyd <swboyd@chromium.org>,
	Douglas Anderson <dianders@chromium.org>,
	Rob Clark <robdclark@chromium.org>,
	Andrzej Hajda <a.hajda@samsung.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Robert Foss <robert.foss@linaro.org>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Jagan Teki <jagan@amarulasolutions.com>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/4] drm/bridge: ti-sn65dsi86: Avoid creating multiple connectors
Date: Thu, 12 Aug 2021 19:38:09 +0300	[thread overview]
Message-ID: <YRVOca+VBeejHCdZ@pendragon.ideasonboard.com> (raw)
In-Reply-To: <20210811235253.924867-2-robdclark@gmail.com>

Hi Rob,

Thank you for the patch.

On Wed, Aug 11, 2021 at 04:52:47PM -0700, Rob Clark wrote:
> From: Rob Clark <robdclark@chromium.org>
> 
> If we created our own connector because the driver does not support the
> NO_CONNECTOR flag, we don't want the downstream bridge to *also* create
> a connector.  And if this driver did pass the NO_CONNECTOR flag (and we
> supported that mode) this would change nothing.
> 
> Fixes: 4e5763f03e10 ("drm/bridge: ti-sn65dsi86: Wrap panel with panel-bridge")
> Signed-off-by: Rob Clark <robdclark@chromium.org>

Makes complete sense.

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

> ---
>  drivers/gpu/drm/bridge/ti-sn65dsi86.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> index 9bf889302bcc..5d3b30b2f547 100644
> --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> @@ -736,6 +736,9 @@ static int ti_sn_bridge_attach(struct drm_bridge *bridge,
>  	}
>  	pdata->dsi = dsi;
>  
> +	/* We never want the next bridge to *also* create a connector: */
> +	flags |= DRM_BRIDGE_ATTACH_NO_CONNECTOR;
> +
>  	/* Attach the next bridge */
>  	ret = drm_bridge_attach(bridge->encoder, pdata->next_bridge,
>  				&pdata->bridge, flags);

-- 
Regards,

Laurent Pinchart

  parent reply	other threads:[~2021-08-12 16:38 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-11 23:52 [PATCH 0/4] drm/msm+ti-sn65dsi86: Fix NO_CONNECTOR fallout Rob Clark
2021-08-11 23:52 ` [PATCH 1/4] drm/bridge: ti-sn65dsi86: Avoid creating multiple connectors Rob Clark
2021-08-12  0:25   ` Stephen Boyd
2021-08-12 16:38   ` Laurent Pinchart [this message]
2021-08-12 16:54   ` Doug Anderson
2021-08-12 17:11     ` Rob Clark
2021-08-11 23:52 ` [PATCH 2/4] drm/msm/dsi: Support NO_CONNECTOR bridges Rob Clark
2021-08-12 16:44   ` Laurent Pinchart
     [not found]   ` <YRVa6Wy/24FUQEUw@ravnborg.org>
2021-08-12 17:45     ` Rob Clark
2021-08-11 23:52 ` [PATCH 3/4] drm/bridge: ti-sn65dsi86: Implement bridge->mode_valid() Rob Clark
2021-08-12 17:23   ` Doug Anderson
2021-08-12 18:44   ` Laurent Pinchart
2021-08-12 19:09     ` Rob Clark
2021-08-12 19:17       ` Laurent Pinchart
2021-08-11 23:52 ` [PATCH 4/4] drm/bridge: ti-sn65dsi86: Add NO_CONNECTOR support Rob Clark
2021-08-12 17:22   ` Doug Anderson
2021-08-12 19:26   ` Laurent Pinchart
2021-08-12 20:08     ` Doug Anderson
2021-09-20 18:32       ` Rob Clark
2021-09-23  0:39         ` Laurent Pinchart

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