linux-kernel - Re: [PATCH v3 3/5] dt-bindings: display: st7701: Add Anbernic RG28XX panel

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Message-ID: <20240710-showdown-antirust-a3eb8b65c57f@spud>
Date: Wed, 10 Jul 2024 15:01:11 +0100
From: Conor Dooley <conor@...nel.org>
To: Hironori KIKUCHI <kikuchan98@...il.com>
Cc: linux-kernel@...r.kernel.org, Jagan Teki <jagan@...rulasolutions.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Jessica Zhang <quic_jesszhan@...cinc.com>,
	Sam Ravnborg <sam@...nborg.org>, David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v3 3/5] dt-bindings: display: st7701: Add Anbernic RG28XX
 panel

On Sat, Jul 06, 2024 at 07:23:34PM +0900, Hironori KIKUCHI wrote:
> The RG28XX panel is a display panel of the Anbernic RG28XX, a handheld
> gaming device from Anbernic. It is 2.8 inches in size (diagonally) with
> a resolution of 480x640.
> 
> This panel is driven by a variant of the ST7701 driver IC internally,
> confirmed by dumping and analyzing its BSP initialization sequence
> by using a logic analyzer. It is very similar to the existing
> densitron,dmt028vghmcmi-1a panel, but differs in some unknown
> register values, so add a new entry for the panel to distinguish them.
> 
> Additionally, the panel only has an SPI instead of MIPI DSI.
> So add and modify for SPI as well.
> 
> Signed-off-by: Hironori KIKUCHI <kikuchan98@...il.com>

With a mention in the commit message about why we are adding a property
and then immediately forbidding its use:
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks,
Conor.

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