linux-kernel - Re: [RFT PATCH v2 47/48] drm/panel: sony-acx565akm: Don't call disable at remove

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Message-ID: <CACRpkdajJ0dkSm7uE=YN5B90tdE_GzczMRxO7eaNWuZLVzP_eg@mail.gmail.com>
Date: Mon, 6 May 2024 08:49:50 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Douglas Anderson <dianders@...omium.org>
Cc: dri-devel@...ts.freedesktop.org, Maxime Ripard <mripard@...nel.org>, 
	Chris Morgan <macromorgan@...mail.com>, Yuran Pereira <yuran.pereira@...mail.com>, 
	Neil Armstrong <neil.armstrong@...aro.org>, 
	Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
	Sebastian Reichel <sebastian.reichel@...labora.com>, Daniel Vetter <daniel@...ll.ch>, 
	David Airlie <airlied@...il.com>, Jessica Zhang <quic_jesszhan@...cinc.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Sam Ravnborg <sam@...nborg.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: [RFT PATCH v2 47/48] drm/panel: sony-acx565akm: Don't call
 disable at remove

On Fri, May 3, 2024 at 11:38 PM Douglas Anderson <dianders@...omiumorg> wrote:

> It's the responsibility of a correctly written DRM modeset driver to
> call drm_atomic_helper_shutdown() at shutdown time and that should be
> disabling / unpreparing the panel if needed. Panel drivers shouldn't
> be calling these functions themselves.
>
> A recent effort was made to fix as many DRM modeset drivers as
> possible [1] [2] [3] and most drivers are fixed now.
>
> A grep through mainline for compatible strings used by this driver
> indicates that it is used by TI OMAP boards. The TI OMAP driver
> appears to be correctly calling drm_atomic_helper_shutdown() so we can
> remove the calls.
>
> [1] https://lore.kernel.org/r/20230901234015.566018-1-dianders@chromium.org
> [2] https://lore.kernel.org/r/20230901234202.566951-1-dianders@chromium.org
> [3] https://lore.kernel.org/r/20230921192749.1542462-1-dianders@chromium.org
>
> Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> Cc: Sebastian Reichel <sebastian.reichel@...labora.com>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij