[PATCH 4/4] ARM: dts: qcom: msm8226-motorola-falcon: specify vddio_disp output voltage

From: Stanislav Jakubek
Date: Thu May 08 2025 - 10:15:08 EST


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@xxxxxxxxx>
---
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