[PATCH 3/4] arm64: dts: rockchip: rk3566-pinetab2: DW9714 coil requires higher voltage

David Heidelberg via B4 Relay devnull+david.ixit.cz at kernel.org
Fri Jul 31 17:35:22 PDT 2026


From: David Heidelberg <david at ixit.cz>

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 vcc2v8_dvp.

1.8 V here is likely used for i2c level shifter.

Fixes: 1b7e19448f8f ("arm64: dts: rockchip: Add devicetree for Pine64 PineTab2")
Cc: stable at vger.kernel.org
Signed-off-by: David Heidelberg <david at ixit.cz>
---
 arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi
index 08bf40de17ead..96511f1bb51d6 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-pinetab2.dtsi
@@ -581,17 +581,17 @@ touchscreen at 5d {
 &i2c2 {
 	clock-frequency = <400000>;
 	pinctrl-0 = <&i2c2m1_xfer>;
 	status = "okay";
 
 	vcm at c {
 		compatible = "dongwoon,dw9714";
 		reg = <0x0c>;
-		vcc-supply = <&vcc1v8_dvp>;
+		vcc-supply = <&vcc2v8_dvp>;
 	};
 
 	camera at 36 {
 		compatible = "ovti,ov5648";
 		reg = <0x36>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&camerab_pdn_l &camerab_rst_l>;
 

-- 
2.53.0





More information about the linux-arm-kernel mailing list