linux-kernel - Re: [PATCH v3 0/3] drm/panel-edp: remove several legacy compatibles used by the driver

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Date: Fri, 31 May 2024 20:43:37 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Jeffrey Hugo <quic_jhugo@...cinc.com>
Cc: Douglas Anderson <dianders@...omium.org>, 
	Neil Armstrong <neil.armstrong@...aro.org>, Jessica Zhang <quic_jesszhan@...cinc.com>, 
	Sam Ravnborg <sam@...nborg.org>, 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>, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v3 0/3] drm/panel-edp: remove several legacy compatibles
 used by the driver

On Fri, May 31, 2024 at 10:18:07AM -0600, Jeffrey Hugo wrote:
> On 5/30/2024 5:12 PM, Dmitry Baryshkov wrote:
> > There are two ways to describe an eDP panel in device tree. The
> > recommended way is to add a device on the AUX bus, ideally using the
> > edp-panel compatible. The legacy way is to define a top-level platform
> > device for the panel.
> > 
> > Document that adding support for eDP panels in a legacy way is strongly
> > discouraged (if not forbidden at all).
> > 
> > While we are at it, also drop legacy compatible strings and bindings for
> > five panels. These compatible strings were never used by a DT file
> > present in Linux kernel and most likely were never used with the
> > upstream Linux kernel.
> > 
> > The following compatibles were never used by the devices supported by
> > the upstream kernel and are a subject to possible removal:
> > 
> > - lg,lp097qx1-spa1
> > - samsung,lsn122dl01-c01
> > - sharp,ld-d5116z01b
> 
> Ok to drop the sharp one I added.  It should be able to be handled by the
> (newish) edp-panel, but I think the TI bridge driver needs some work for the
> specific platform (no I2C connection) to verify.

Thanks. I'm tempted to merge the series as is now and drop
sharp,ld-d5116z01b once you can confirm that it can be handled by
edp-panel on your platform.

-- 
With best wishes
Dmitry