[PATCH 4/4] arm64: dts: imx8mq-librem5: Dongwoon DW9714 coil requires higher voltage

David Heidelberg via B4 Relay <[email protected]> Sat, 01 Aug 2026 02:35:23 +0200
Newsgroups dev.linux.lists.imx,org.infradead.lists.linux-arm-kernel,org.infradead.lists.linux-rockchip,org.kernel.feeds.b4-sent,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-media,org.kernel.vger.phone-devel,org.kernel.vger.stable
Message-ID <[email protected]>
From: David Heidelberg <[email protected]>

By datasheet the VDD (in-kernel named vcc) range is between 2.3 to 4.3 V.
Usually it's around 2.8 V. Here it matches the reg_vcam_2v8.

1.8 V here is likely used for i2c level shifter.

Fixes: f00df2bdb512 ("arm64: dts: imx8mq-librem5: describe the voice coil motor for focus control")
Cc: [email protected]
Signed-off-by: David Heidelberg <[email protected]>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index f5d529c5baf3e..583cba2d3bebf 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -1167,17 +1167,17 @@ &i2c4 {
 	pinctrl-1 = <&pinctrl_i2c4_gpio>;
 	scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	status = "okay";
 
 	vcm@c {
 		compatible = "dongwoon,dw9714";
 		reg = <0x0c>;
-		vcc-supply = <&reg_csi_1v8>;
+		vcc-supply = <&reg_vcam_2v8>;
 	};
 
 	bat: fuel-gauge@36 {
 		compatible = "maxim,max17055";
 		reg = <0x36>;
 		interrupt-parent = <&gpio3>;
 		interrupts = <20 IRQ_TYPE_LEVEL_LOW>;
 		pinctrl-names = "default";

-- 
2.53.0