linux-kernel - [PATCH v2 2/2] arm64: dts: ti: k3-am69-sk: Mark tps659413 regulators as bootph-all

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Message-Id: <20240911-j784s4-tps6594-bootph-v2-2-a83526264ab1@redhat.com>
Date: Wed, 11 Sep 2024 12:19:03 -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 v2 2/2] arm64: dts: ti: k3-am69-sk: Mark tps659413
 regulators as bootph-all

In order for the MCU domain to access this PMIC, a regulator
needs to be marked appropriately otherwise it is not seen by SPL and
therefore not configured.

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 | 8 ++++++++
 1 file changed, 8 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..f4d158a0b97d 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts
@@ -750,6 +750,7 @@ tps659413: pmic@48 {
 
 		regulators {
 			bucka12: buck12 {
+				bootph-all;
 				regulator-name = "vdd_ddr_1v1";
 				regulator-min-microvolt = <1100000>;
 				regulator-max-microvolt = <1100000>;
@@ -758,6 +759,7 @@ bucka12: buck12 {
 			};
 
 			bucka3: buck3 {
+				bootph-all;
 				regulator-name = "vdd_ram_0v85";
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <850000>;
@@ -766,6 +768,7 @@ bucka3: buck3 {
 			};
 
 			bucka4: buck4 {
+				bootph-all;
 				regulator-name = "vdd_io_1v8";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
@@ -774,6 +777,7 @@ bucka4: buck4 {
 			};
 
 			bucka5: buck5 {
+				bootph-all;
 				regulator-name = "vdd_mcu_0v85";
 				regulator-min-microvolt = <850000>;
 				regulator-max-microvolt = <850000>;
@@ -782,6 +786,7 @@ bucka5: buck5 {
 			};
 
 			ldoa1: ldo1 {
+				bootph-all;
 				regulator-name = "vdd_mcuio_1v8";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
@@ -790,6 +795,7 @@ ldoa1: ldo1 {
 			};
 
 			ldoa2: ldo2 {
+				bootph-all;
 				regulator-name = "vdd_mcuio_3v3";
 				regulator-min-microvolt = <3300000>;
 				regulator-max-microvolt = <3300000>;
@@ -798,6 +804,7 @@ ldoa2: ldo2 {
 			};
 
 			ldoa3: ldo3 {
+				bootph-all;
 				regulator-name = "vds_dll_0v8";
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <800000>;
@@ -806,6 +813,7 @@ ldoa3: ldo3 {
 			};
 
 			ldoa4: ldo4 {
+				bootph-all;
 				regulator-name = "vda_mcu_1v8";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;

-- 
2.46.0