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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Wed, 01 May 2024 19:19:38 +0300
Subject: [PATCH 12/13] arm64: dts: sda660-ifc6560: document missing USB PHY
 supplies
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Message-Id: <20240501-qcom-phy-fixes-v1-12-f1fd15c33fb3@linaro.org>
References: <20240501-qcom-phy-fixes-v1-0-f1fd15c33fb3@linaro.org>
In-Reply-To: <20240501-qcom-phy-fixes-v1-0-f1fd15c33fb3@linaro.org>
To: Vinod Koul <vkoul@kernel.org>, 
 Kishon Vijay Abraham I <kishon@kernel.org>, Rob Herring <robh@kernel.org>, 
 Krzysztof Kozlowski <krzk+dt@kernel.org>, 
 Conor Dooley <conor+dt@kernel.org>, Abel Vesa <abel.vesa@linaro.org>, 
 Wesley Cheng <quic_wcheng@quicinc.com>, cros-qcom-dts-watchers@chromium.org, 
 Bjorn Andersson <andersson@kernel.org>, 
 Konrad Dybcio <konrad.dybcio@linaro.org>, 
 David Wronek <davidwronek@gmail.com>, Andy Gross <andy.gross@linaro.org>, 
 Evan Green <evgreen@chromium.org>, Douglas Anderson <dianders@chromium.org>, 
 Iskren Chernev <me@iskren.info>, Luca Weiss <luca.weiss@fairphone.com>, 
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>, 
 Yassine Oudjana <y.oudjana@protonmail.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>, 
 linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, 
 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, 
 Krzysztof Kozlowski <krzk@kernel.org>, 
 Konrad Dybcio <konrad.dybcio@somainline.org>, 
 Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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@linaro.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