[PATCH] arm64: dts: qcom: talos-lyra-evk: fix sdhc_2 vqmmc-supply for UHS-I mode
From: Monish Chunara
Date: Wed Oct 28 2026 - 08:21:05 EST
SD card is detected as SDHS instead of UHS-I because sdhc_2 was
configured with vreg_s4a as vqmmc-supply, which cannot switch between
1.8V and 3.3V.
Switch vqmmc-supply to vreg_l2a and update its voltage range to
1800000-2960000 uV to enable proper UHS-I signaling.
Signed-off-by: Monish Chunara <monish.chunara@xxxxxxxxxxxxxxxx>
This patch depends on base series -
https://lore.kernel.org/all/20261027-talos-lyra-evk-v2-v3-2-658fd5a7ec99@xxxxxxxxxxxxxxxx/
---
arch/arm64/boot/dts/qcom/talos-lyra-evk-som.dtsi | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/talos-lyra-evk-som.dtsi b/arch/arm64/boot/dts/qcom/talos-lyra-evk-som.dtsi
index 7d9a08471906..65a2ca78106d 100644
--- a/arch/arm64/boot/dts/qcom/talos-lyra-evk-som.dtsi
+++ b/arch/arm64/boot/dts/qcom/talos-lyra-evk-som.dtsi
@@ -57,8 +57,8 @@ vreg_l1a: ldo1 {
vreg_l2a: ldo2 {
regulator-name = "vreg_l2a";
- regulator-min-microvolt = <1650000>;
- regulator-max-microvolt = <3100000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2960000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
regulator-allow-set-load;
regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM
@@ -224,7 +224,7 @@ &sdhc_2 {
bus-width = <4>;
cd-gpios = <&tlmm 99 GPIO_ACTIVE_LOW>;
vmmc-supply = <&vreg_l10a>;
- vqmmc-supply = <&vreg_s4a>;
+ vqmmc-supply = <&vreg_l2a>;
status = "okay";
};
--
2.34.1