linux-kernel - [PATCH 2/5] arm64: dts: ti: k3-am62a7-sk: Split vcc

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Message-ID: <20230731-mcasp_am62a-v1-2-8bd137ffa8f1@ti.com>
Date:   Mon, 31 Jul 2023 18:14:39 +0530
From:   Jai Luthra <j-luthra@...com>
To:     Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Jai Luthra <j-luthra@...com>, Devarsh Thakkar <devarsht@...com>
Subject: [PATCH 2/5] arm64: dts: ti: k3-am62a7-sk: Split vcc_3v3 regulators

VCC_3V3_MAIN is the output of LM5141-Q1, and it serves as an input to
TPS22965DSGT which produces VCC_3V3_SYS. [1]

Link: https://www.ti.com/lit/zip/sprr459 [1]
Signed-off-by: Jai Luthra <j-luthra@...com>
Reviewed-by: Devarsh Thakkar <devarsht@...com>
---
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 133e32f7c6cc..9d34b8fe4ecb 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -79,10 +79,10 @@ vcc_5v0: regulator-1 {
 		regulator-boot-on;
 	};
 
-	vcc_3v3_sys: regulator-2 {
+	vcc_3v3_main: regulator-2 {
 		/* output of LM5141-Q1 */
 		compatible = "regulator-fixed";
-		regulator-name = "vcc_3v3_sys";
+		regulator-name = "vcc_3v3_main";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		vin-supply = <&vmain_pd>;
@@ -101,6 +101,17 @@ vdd_mmc1: regulator-3 {
 		gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
 	};
 
+	vcc_3v3_sys: regulator-4 {
+		/* output of TPS222965DSGT */
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3_sys";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_3v3_main>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";

-- 
2.41.0