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Date: Wed, 22 Mar 2023 13:17:30 +0100
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Subject: Re: [PATCH v14 05/10] drm/bridge: anx7625: Check for Type-C during
 panel registration
Content-Language: en-US
To: Pin-yen Lin <treapking@chromium.org>,
 Andrzej Hajda <andrzej.hajda@intel.com>,
 Neil Armstrong <neil.armstrong@linaro.org>, Robert Foss <rfoss@kernel.org>,
 Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
 Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@gmail.com>,
 David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
 Rob Herring <robh+dt@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
 Daniel Scally <djrscally@gmail.com>,
 Heikki Krogerus <heikki.krogerus@linux.intel.com>,
 Sakari Ailus <sakari.ailus@linux.intel.com>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 "Rafael J . Wysocki" <rafael@kernel.org>,
 Prashant Malani <pmalani@chromium.org>, Benson Leung <bleung@chromium.org>,
 Guenter Roeck <groeck@chromium.org>
Cc: Xin Ji <xji@analogixsemi.com>, linux-kernel@vger.kernel.org,
 Thomas Zimmermann <tzimmermann@suse.de>, linux-acpi@vger.kernel.org,
 Javier Martinez Canillas <javierm@redhat.com>,
 Hsin-Yi Wang <hsinyi@chromium.org>, Lyude Paul <lyude@redhat.com>,
 =?UTF-8?Q?N=c3=adcolas_F_=2e_R_=2e_A_=2e_Prado?= <nfraprado@collabora.com>,
 Allen Chen <allen.chen@ite.com.tw>, dri-devel@lists.freedesktop.org,
 Marek Vasut <marex@denx.de>, Stephen Boyd <swboyd@chromium.org>,
 chrome-platform@lists.linux.dev, devicetree@vger.kernel.org
References: <20230322104639.221402-1-treapking@chromium.org>
 <20230322104639.221402-6-treapking@chromium.org>
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
In-Reply-To: <20230322104639.221402-6-treapking@chromium.org>
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Il 22/03/23 11:46, Pin-yen Lin ha scritto:
> The output port endpoints can be connected to USB-C connectors.
> Running drm_of_find_panel_or_bridge() with such endpoints leads to
> a continuous return value of -EPROBE_DEFER, even though there is
> no panel present.
> 
> To avoid this, check for the existence of a "mode-switch" property in
> the port endpoint, and skip panel registration completely if so.
> 
> Signed-off-by: Pin-yen Lin <treapking@chromium.org>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> 

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>