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Tue, 15 Jul 2025 07:13:25 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.amarulasolutions.com ([2.196.40.133]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3b5e8e26daasm15579557f8f.91.2025.07.15.07.13.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Jul 2025 07:13:25 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Peng Fan , linux-amarula@amarulasolutions.com, Wolfgang Birkner , Dario Binacchi , Conor Dooley , Fabio Estevam , Krzysztof Kozlowski , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2] ARM: dts: imx6ulz-bsh-smm-m2: fix resume via console Date: Tue, 15 Jul 2025 16:13:10 +0200 Message-ID: <20250715141322.1305512-1-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Wolfgang Birkner 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 Signed-off-by: Dario Binacchi --- Changes in v2: - Improve commit message - Drop patches: - 1/3 ARM: dts: imx6ulz-bsh-smm-m2: Enable hardware rng - 3/3 ARM: dts: imx6ulz-bsh-smm-m2: Update wifi/bluetooth pinctrl arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts b/arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts index 6159ed70d966..2d9f495660c9 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts +++ b/arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts @@ -33,6 +33,10 @@ &snvs_poweroff { status = "okay"; }; +&uart2 { + status = "okay"; +}; + &uart3 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart3>; -- 2.43.0