linux-kernel - Re: [PATCH v3 4/9] drm/bridge: lt9611: Don't log an error when DSI host can't be found

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Message-ID: <gcq33bcaindlrllyhjdcmfvn4irmr5onisekajdxji43rsrpt5@g5cbavz5xfcs>
Date: Tue, 16 Apr 2024 04:18:17 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Nícolas F. R. A. Prado <nfraprado@...labora.com>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>, 
	Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>, Jonas Karlman <jonas@...boo.se>, 
	Jernej Skrabec <jernej.skrabec@...il.com>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, owen <qwt9588@...il.com>, 
	Jagan Teki <jagan@...rulasolutions.com>, Marek Vasut <marex@...x.de>, 
	Adrien Grassein <adrien.grassein@...il.com>, Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, 
	Sam Ravnborg <sam@...nborg.org>, Bjorn Andersson <andersson@...nel.org>, 
	Vinod Koul <vkoul@...nel.org>, Vinay Simha BN <simhavcs@...il.com>, 
	Christopher Vollo <chris@...ewoutreach.org>, Jessica Zhang <quic_jesszhan@...cinc.com>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>, kernel@...labora.com, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
Subject: Re: [PATCH v3 4/9] drm/bridge: lt9611: Don't log an error when DSI
 host can't be found

On Mon, Apr 15, 2024 at 05:49:32PM -0400, Nícolas F. R. A. Prado wrote:
> Given that failing to find a DSI host causes the driver to defer probe,
> make use of dev_err_probe() to log the reason. This makes the defer
> probe reason available and avoids alerting userspace about something
> that is not necessarily an error.
> 
> Fixes: 23278bf54afe ("drm/bridge: Introduce LT9611 DSI to HDMI bridge")
> Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
> ---
>  drivers/gpu/drm/bridge/lontium-lt9611.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

-- 
With best wishes
Dmitry