linux-kernel - Re: [PATCH v1 07/14] dt-bindings: lcdif: Do not require power-domains for i.MX6ULL

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Message-ID: <a8b55331-a8c3-457e-83e0-2aa361ed23c6@gmx.net>
Date: Mon, 12 Feb 2024 20:20:35 +0100
From: Stefan Wahren <wahrenst@....net>
To: Sebastian Reichel <sre@...nel.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>, Fabio Estevam <festevam@...il.com>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 NXP Linux Team <linux-imx@....com>
Cc: Dong Aisheng <aisheng.dong@....com>,
 Linus Walleij <linus.walleij@...aro.org>,
 Dmitry Torokhov <dmitry.torokhov@...il.com>, Mark Brown
 <broonie@...nel.org>, linux-arm-kernel@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 07/14] dt-bindings: lcdif: Do not require power-domains
 for i.MX6ULL

Hi Sebastian,

Am 10.02.24 um 02:18 schrieb Sebastian Reichel:
> i.MX6UL(L) uses "fsl,imx6sx-lcdif" as fallback compatible string,
> but has only very lightweight DISPLAY power domain. Its DISPLAY
> power domain is not supported by the binding / Linux kernel at
> the moment. Since the current setup is working, let's remove the
> power-domain from being required for that platform to fix the warning
> printed by CHECK_DTBS=y.
i'm not sure this is a good idea. In case i.MX6UL(L) is different from
i.MX6SX here, then it should have a different compatible.

Regards