The Qualcomm UFS phy switched from dedicated driver to QMP phy driver.
Eventually the old driver was removed in commit 02dca8c981b5 ("phy:
qcom: remove ufs qmp phy driver"). The original driver and its binding
used vddp-ref-clk regulator supply, but the new one did not and left the
supply unused.
The Qualcomm UFS phy bindings were also migrated to newer ones and
dropped support for vddp-ref-clk regulator in commit dc5cb63592bd
("dt-bindings: phy: migrate QMP UFS PHY bindings to
qcom,sc8280xp-qmp-ufs-phy.yaml").
It turns out that this regulator, although with inaccurate name
vddp-ref-clk, is actually needed to provide supply for VDD_PX10 (or
similar, depending on the SoC) used by UFS controller.
Bring back handling of this supply by using more appropriate regulator -
UFS controller host supply. This also fixes dtbs_check warning:
apq8096-db820c.dtb: phy@627000: 'vddp-ref-clk-supply' does not match any of the regexes: 'pinctrl-[0-9]+'
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/apq8096-db820c.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dts b/arch/arm64/boot/dts/qcom/apq8096-db820c.dts
index 385b178314db..d2aaff3e0d02 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dts
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dts
@@ -1091,7 +1091,6 @@ &ufsphy {
vdda-phy-supply = <&vreg_l28a_0p925>;
vdda-pll-supply = <&vreg_l12a_1p8>;
- vddp-ref-clk-supply = <&vreg_l25a_1p2>;
};
&ufshc {
@@ -1100,6 +1099,7 @@ &ufshc {
vcc-supply = <&vreg_l20a_2p95>;
vccq-supply = <&vreg_l25a_1p2>;
vccq2-supply = <&vreg_s4a_1p8>;
+ vdd-hba-supply = <&vreg_l25a_1p2>;
vcc-max-microamp = <600000>;
vccq-max-microamp = <450000>;
--
2.34.1
