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

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Message-ID: <7428a2f7-befc-6db8-76f4-3ca8dc12d31c@quicinc.com>
Date: Fri, 31 May 2024 10:18:07 -0600
From: Jeffrey Hugo <quic_jhugo@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        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>
CC: <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 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.

-Jeff