linux-kernel - RE: [PATCH v2] ARM: dts: imx6ulz-bsh-smm-m2: fix resume via console

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Message-ID:
 <PAXPR04MB8459C13B743A385FF26B2D09885DA@PAXPR04MB8459.eurprd04.prod.outlook.com>
Date: Mon, 21 Jul 2025 09:36:26 +0000
From: Peng Fan <peng.fan@....com>
To: Dario Binacchi <dario.binacchi@...rulasolutions.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC: "linux-amarula@...rulasolutions.com" <linux-amarula@...rulasolutions.com>,
	Wolfgang Birkner <wolfgang.birkner@...g.com>, Conor Dooley
	<conor+dt@...nel.org>, Fabio Estevam <festevam@...il.com>, Krzysztof
 Kozlowski <krzk+dt@...nel.org>, Pengutronix Kernel Team
	<kernel@...gutronix.de>, Rob Herring <robh@...nel.org>, Sascha Hauer
	<s.hauer@...gutronix.de>, Shawn Guo <shawnguo@...nel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"imx@...ts.linux.dev" <imx@...ts.linux.dev>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH v2] ARM: dts: imx6ulz-bsh-smm-m2: fix resume via console

> Subject: [PATCH v2] ARM: dts: imx6ulz-bsh-smm-m2: fix resume via
> console
> 
> From: Wolfgang Birkner <wolfgang.birkner@...g.com>
> 
> Despite the current configuration being compliant with the technical
> reference manual (TRM), testing on the system showed that resuming
> from suspend via UART4 (used as the console) fails unless any other
> UART is also enabled.
> 
> In our use case, UART2 is enabled to ensure reliable resume when
> UART4 is used as the console.
> 
> Signed-off-by: Wolfgang Birkner <wolfgang.birkner@...g.com>
> Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
> 

Not sure why there is dependency here, but enable it
does not harm, so

Ack-by: Peng Fan <peng.fan@....com>