From 238f918800448da30895ae3f71680b5f72bebbfb Mon Sep 17 00:00:00 2001 From: Martin Kepplinger Date: Mon, 17 Jul 2023 10:00:53 +0000 Subject: arm64: dts: imx8mq-librem5: set audio-1v8 always-on Unfortunately the codec can't be switched off on it's own. It would ground the whole bus it's connected to (because of it's built-in diodes to VDD on i2c pins), making all the other devices on the same bus inaccessible: [ 0.237154] lm3692x 2-0036: Cannot read/clear faults: -11 [ 0.242628] lm3692x 2-0036: Fail writing initialization values [ 0.286462] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@30800000/mipi-dsi@30a00000 to encoder None-34: -517 Work around this hardware limitation by keeping audio-1v8 enabled. Signed-off-by: Martin Kepplinger Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm64/boot/dts/freescale') diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi index 38bfc822e930..cb14b6afdf63 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi @@ -91,6 +91,7 @@ regulator-max-microvolt = <1800000>; gpio = <&gpio1 4 GPIO_ACTIVE_HIGH>; enable-active-high; + regulator-always-on; }; reg_mic_2v4: regulator-mic-2v4 { -- cgit