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Wed, 02 Sep 2026 09:43:30 -0700 (PDT) Received: from GLaDOS.station ([187.13.216.247]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49cee5dead1sm3844745e9.11.2026.09.02.09.43.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Sep 2026 09:43:30 -0700 (PDT) From: Stefano Radaelli X-Google-Original-From: Stefano Radaelli To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: pierluigi.p@variscite.com, Stefano Radaelli , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Luan Rafael Carneiro Subject: [PATCH v1 1/1] arm64: dts: imx8mp-var-dart-sonata: Fix Sonata SD I/O supply Date: Wed, 2 Sep 2026 18:43:17 +0200 Message-ID: <20260902164317.45925-1-stefano.r@variscite.com> X-Mailer: git-send-email 2.47.3 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: Stefano Radaelli LDO5 powers the USDHC2 I/O rail on DART-MX8M-PLUS. Without a regulator consumer, the kernel disables LDO5 during late init, which removes the SD card and causes filesystem I/O errors. Reference LDO5 as the Sonata USDHC2 VQMMC supply, so the regulator remains enabled while the SD interface is active. Co-developed-by: Luan Rafael Carneiro Signed-off-by: Luan Rafael Carneiro Signed-off-by: Stefano Radaelli --- arch/arm64/boot/dts/freescale/imx8mp-var-dart-sonata.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-dart-sonata.dts b/arch/arm64/boot/dts/freescale/imx8mp-var-dart-sonata.dts index 983d67a0c1de..7f78026e70ff 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-var-dart-sonata.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-var-dart-sonata.dts @@ -511,6 +511,7 @@ &usdhc2 { pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>; cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>; vmmc-supply = <®_usdhc2_vmmc>; + vqmmc-supply = <&ldo5>; bus-width = <4>; status = "okay"; }; -- 2.47.3