Re: [PATCH v2 0/25] drm/panel infrastructure + backlight update

From: Sam Ravnborg <sam@ravnborg•org>
To: dri-devel@lists•freedesktop.org,
	Thierry Reding <thierry.reding@gmail•com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard•com>,
	Linus Walleij <linus.walleij@linaro•org>
Cc: Neil Armstrong <narmstrong@baylibre•com>,
	David Airlie <airlied@linux•ie>, Stefan Agner <stefan@agner•ch>,
	Andrzej Hajda <a.hajda@samsung•com>,
	Benjamin Gaignard <benjamin.gaignard@linaro•org>,
	linux-samsung-soc@vger•kernel.org,
	linux-rockchip@lists•infradead.org,
	Tomi Valkeinen <tomi.valkeinen@ti•com>,
	Jagan Teki <jagan@amarulasolutions•com>,
	NXP Linux Team <linux-imx@nxp•com>,
	Jitao Shi <jitao.shi@mediatek•com>,
	Pengutronix Kernel Team <kernel@pengutronix•de>,
	Maarten Lankhorst <maarten.lankhorst@linux•intel.com>,
	Maxime Ripard <mripard@kernel•org>,
	linux-mediatek@lists•infradead.org,
	Abhinav Kumar <abhinavk@codeaurora•org>,
	linux-tegra@vger•kernel.org, Sean Paul <sean@poorly•run>,
	linux-arm-kernel@lists•infradead.org,
	Purism Kernel Team <kernel@puri•sm>,
	linux-renesas-soc@vger•kernel.org,
	Boris Brezillon <boris.brezillon@collabora•com>,
	Daniel Vetter <daniel@ffwll•ch>
Subject: Re: [PATCH v2 0/25] drm/panel infrastructure + backlight update
Date: Mon, 9 Dec 2019 23:04:59 +0100	[thread overview]
Message-ID: <20191209220459.GA11015@ravnborg.org> (raw)
In-Reply-To: <20191207140353.23967-1-sam@ravnborg.org>

On Sat, Dec 07, 2019 at 03:03:28PM +0100, Sam Ravnborg wrote:
> This patchset include a couple of different
> things - all related to panels.
> 
> - The callbacks are optional - so drop error if
>   callback is not present.
>  
> - Add support for backlight in drm_panel.
>   This allows us to make much simpler backlight
>   support to most panels.
>   The patchset include conversion of most of the
>   trivial cases.
> 
> - Drop drm_connector from drm_panel.
>   This change required many changes to most
>   panels and many bridges and display drivers.
>   This is by far the most invasive change in this patchset.
> 
> With this patchset drm_panel_(attach|detach) are nop's
> but they are kept for now.
> 
> A few of these patches has been sent out before - but versioning
> started again from v1 - as the most patches are new.
> 
> I have tested the panel-simple changes, and thus some
> of the infrastructure changes.
> The testing was done on an earlier iteration - and I ended
> up submitting this as Laurent and others started to depend on it.
> 
> v2:
>   This is mostly addressing comments from Laurent.
>   - drop get_timings removal, we should start using it
>   - do not fail in drm_panel_of_backlight() if DT is not enabled
>   - updated changelogs and code comments in many places (thanks Laurent!)
>   - get_modes is a mandatory callback - return -EOPNOTSUPP if not specified
>   - log if backlight update fails
>   - added a-b/r-bs
>     o thanks to Laurent and Linus for the prompt reviews!
> 
> When "drm/panel: add backlight support" is reviewed I plan to
> apply the full series to drm-misc-next.

Fixed the last bits pointed out by Laurent and pushed to drm-misc-next.

	Sam

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