linux-kernel - Re: [PATCH 3/8] drm/panel: boe-tv101wum-nl6: Check for errors on the NOP in prepare()

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Date: Mon, 20 May 2024 11:48:36 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Douglas Anderson <dianders@...omium.org>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg <sam@...nborg.org>
Cc: Linus Walleij <linus.walleij@...aro.org>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
 Daniel Vetter <daniel@...ll.ch>, David Airlie <airlied@...il.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Shuijing Li <shuijing.li@...iatek.com>,
 Thomas Zimmermann <tzimmermann@...e.de>, Xinlei Lee
 <xinlei.lee@...iatek.com>, dri-devel@...ts.freedesktop.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/8] drm/panel: boe-tv101wum-nl6: Check for errors on the
 NOP in prepare()

Il 17/05/24 23:36, Douglas Anderson ha scritto:
> The mipi_dsi_dcs_nop() function returns an error but we weren't
> checking it in boe_panel_prepare(). Add a check. This is highly
> unlikely to matter in practice. If the NOP failed then likely later
> MIPI commands would fail too.
> 
> Found by code inspection.
> 
> Fixes: 812562b8d881 ("drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence")
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

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