linux-kernel - [PATCH 4/4] ARM: dts: qcom: msm8226-motorola-falcon: specify vddio

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Message-ID: <6143603464a65aebbed281fe6c6164316dd07269.1746711762.git.stano.jakubek@gmail.com>
Date: Thu, 8 May 2025 16:11:34 +0200
From: Stanislav Jakubek <stano.jakubek@...il.com>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, phone-devel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] ARM: dts: qcom: msm8226-motorola-falcon: specify
 vddio_disp output voltage

After some digging in downstream sources, it was found that the vddio_disp
regulator's output voltage is 1.8V. This is further confirmed by the
troubleshooting guide. Specify its output voltage as such.
While at it, add a comment specifying the IC, which according to the
schematic is the TI TPS22902.

Signed-off-by: Stanislav Jakubek <stano.jakubek@...il.com>
---
 arch/arm/boot/dts/qcom/msm8226-motorola-falcon.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/qcom/msm8226-motorola-falcon.dts b/arch/arm/boot/dts/qcom/msm8226-motorola-falcon.dts
index d6d5a86491aac..e6392f7d14c75 100644
--- a/arch/arm/boot/dts/qcom/msm8226-motorola-falcon.dts
+++ b/arch/arm/boot/dts/qcom/msm8226-motorola-falcon.dts
@@ -62,9 +62,12 @@ key-volume-up {
 		};
 	};
 
+	/* TI TPS22902 */
 	vddio_disp_vreg: regulator-vddio-disp {
 		compatible = "regulator-fixed";
 		regulator-name = "vddio_disp";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
 		gpio = <&tlmm 34 GPIO_ACTIVE_HIGH>;
 		vin-supply = <&pm8226_l8>;
 		startup-delay-us = <300>;
-- 
2.43.0