linux-kernel - [PATCH 12/13] arm64: dts: sda660-ifc6560: document missing USB PHY supplies

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Date: Wed, 01 May 2024 19:19:38 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Vinod Koul <vkoul@...nel.org>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Abel Vesa <abel.vesa@...aro.org>, 
 Wesley Cheng <quic_wcheng@...cinc.com>, cros-qcom-dts-watchers@...omium.org, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, 
 David Wronek <davidwronek@...il.com>, Andy Gross <andy.gross@...aro.org>, 
 Evan Green <evgreen@...omium.org>, Douglas Anderson <dianders@...omium.org>, 
 Iskren Chernev <me@...ren.info>, Luca Weiss <luca.weiss@...rphone.com>, 
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
 Yassine Oudjana <y.oudjana@...tonmail.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Krzysztof Kozlowski <krzk@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...ainline.org>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: [PATCH 12/13] arm64: dts: sda660-ifc6560: document missing USB PHY
 supplies

On the IFC6560 one of the USB PHY supplies is the L10A power supply.
However this regulator also supplies VDDA_APC1_CS, VDD_PLL2 and VDD_P11
consumers. Touching the supply causes the board to be reset. Document
the supply as a fixed always-on regulator.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts b/arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts
index 702ab49bbc59..60412281ab27 100644
--- a/arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts
+++ b/arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts
@@ -96,6 +96,18 @@ v5p0_boost: v5p0-boost-regulator {
 
 		vin-supply = <&vph_pwr>;
 	};
+
+	/*
+	 * this is also used for APC1 CPU power, touching it resets the board
+	 */
+	vreg_l10a_1p8: vreg-l10a-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vreg_l10a_1p8";
+		regulator-min-microvolt = <1804000>;
+		regulator-max-microvolt = <1896000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
 };
 
 &adsp_pil {
@@ -220,6 +232,7 @@ &qusb2phy0 {
 	status = "okay";
 
 	vdd-supply = <&vreg_l1b_0p925>;
+	vdda-pll-supply = <&vreg_l10a_1p8>;
 	vdda-phy-dpdm-supply = <&vreg_l7b_3p125>;
 };
 
@@ -227,6 +240,7 @@ &qusb2phy1 {
 	status = "okay";
 
 	vdd-supply = <&vreg_l1b_0p925>;
+	vdda-pll-supply = <&vreg_l10a_1p8>;
 	vdda-phy-dpdm-supply = <&vreg_l7b_3p125>;
 };
 
@@ -464,5 +478,6 @@ &usb3_dwc3 {
 
 &usb3_qmpphy {
 	vdda-phy-supply = <&vreg_l1b_0p925>;
+	vdda-pll-supply = <&vreg_l10a_1p8>;
 	status = "okay";
 };

-- 
2.39.2