linux-kernel - [PATCH RFC/RFT 2/2] arm64: dts: ti: k3-am69-sk: Mark tps659413 and children as bootph-all

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Message-Id: <20240906-j784s4-tps6594-bootph-v1-2-c5b58d43bf04@redhat.com>
Date: Fri, 06 Sep 2024 16:21:03 -0500
From: Andrew Halaney <ahalaney@...hat.com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>, 
 Tero Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Keerthy <j-keerthy@...com>, Neha Malcom Francis <n-francis@...com>, 
 Eric Chanudet <echanude@...hat.com>, Enric Balletbo <eballetb@...hat.com>, 
 Udit Kumar <u-kumar1@...com>, linux-arm-kernel@...ts.infradead.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Andrew Halaney <ahalaney@...hat.com>
Subject: [PATCH RFC/RFT 2/2] arm64: dts: ti: k3-am69-sk: Mark tps659413 and
 children as bootph-all

In order for the MCU domain to access this PMIC and its children in
u-boot SPL, the nodes need to be marked appropriately otherwise they
are not seen by SPL.

This is necessary if the MCU domain is to program the TPS6594 MCU ESM
state machine, which is required to wire up the watchdog in a manner
that will reset the board.

Signed-off-by: Andrew Halaney <ahalaney@...hat.com>
---
 arch/arm64/boot/dts/ti/k3-am69-sk.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
index 1e36965a1403..1c3427856982 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -729,6 +729,7 @@ eeprom@51 {
 	};
 
 	tps659413: pmic@48 {
+		bootph-all;
 		compatible = "ti,tps6594-q1";
 		reg = <0x48>;
 		system-power-controller;
@@ -749,7 +750,10 @@ tps659413: pmic@48 {
 		ldo4-supply = <&vsys_3v3>;
 
 		regulators {
+			bootph-all;
+
 			bucka12: buck12 {
+				bootph-all;
 				regulator-name = "vdd_ddr_1v1";
 				regulator-min-microvolt = <1100000>;
 				regulator-max-microvolt = <1100000>;
@@ -758,6 +762,7 @@ bucka12: buck12 {
 			};
 
 			bucka3: buck3 {
+				bootph-all;
 				regulator-name = "vdd_ram_0v85";
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <850000>;
@@ -766,6 +771,7 @@ bucka3: buck3 {
 			};
 
 			bucka4: buck4 {
+				bootph-all;
 				regulator-name = "vdd_io_1v8";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
@@ -774,6 +780,7 @@ bucka4: buck4 {
 			};
 
 			bucka5: buck5 {
+				bootph-all;
 				regulator-name = "vdd_mcu_0v85";
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <850000>;
@@ -782,6 +789,7 @@ bucka5: buck5 {
 			};
 
 			ldoa1: ldo1 {
+				bootph-all;
 				regulator-name = "vdd_mcuio_1v8";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
@@ -790,6 +798,7 @@ ldoa1: ldo1 {
 			};
 
 			ldoa2: ldo2 {
+				bootph-all;
 				regulator-name = "vdd_mcuio_3v3";
 				regulator-min-microvolt = <3300000>;
 				regulator-max-microvolt = <3300000>;
@@ -798,6 +807,7 @@ ldoa2: ldo2 {
 			};
 
 			ldoa3: ldo3 {
+				bootph-all;
 				regulator-name = "vds_dll_0v8";
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <800000>;
@@ -806,6 +816,7 @@ ldoa3: ldo3 {
 			};
 
 			ldoa4: ldo4 {
+				bootph-all;
 				regulator-name = "vda_mcu_1v8";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;

-- 
2.46.0