From 5a026558d2a994a5e58ca6fcab34008b95fea7e1 Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Mon, 11 Apr 2022 14:13:39 -0700 Subject: [PATCH] arm64: dts: qcom: sc7280-herobrine: Audio codec wants 1.8V, not 1.62V The L2C rail on herobrine boards is intended to go to the audio codec. Let's override the 1.62V specified in the qcard.dtsi file to be 1.8V. Signed-off-by: Douglas Anderson Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20220411141332.v2.1.I9f06fec63b978699fe62591fec9e5ac31bb3a69d@changeid --- arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi index 10de5e1..d58045d 100644 --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi @@ -308,7 +308,10 @@ }; /* - * BOARD-LOCAL NAMES FOR REGULATORS THAT CONNECT TO QCARD + * ADJUSTMENTS TO QCARD REGULATORS + * + * Mostly this is just board-local names for regulators that come from + * Qcard, but this also has some minor regulator overrides. * * Names are only listed here if regulators go somewhere other than a * testpoint. @@ -352,6 +355,16 @@ vreg_edp_bl: &ppvar_sys {}; ts_avdd: &pp3300_left_in_mlb {}; vreg_edp_3p3: &pp3300_left_in_mlb {}; +/* Regulator overrides from Qcard */ + +/* + * Herobrine boards only use l2c to power an external audio codec (like + * alc5682) and we want that to be at 1.8V, not at some slightly lower voltage. + */ +&vreg_l2c_1p8 { + regulator-min-microvolt = <1800000>; +}; + /* ADDITIONS TO NODES DEFINED IN PARENT DEVICE TREE FILES */ ap_sar_sensor_i2c: &i2c1 { -- 2.7.4