[RFC][PATCH] ARM: dts: renesas: Add missing ethernet PHY reset GPIO on Gen2 reference boards

[marek.vasut@xxxxxxxxx]

From: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>

The ethernet PHY reset GPIO was missing and the kernel was depending
solely on the bootloader to bring the PHY out of reset. Fix this to
get rid of the dependency on bootloader.

Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Cc: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Cc: linux-renesas-soc@xxxxxxxxxxxxxxx
To: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
---
NOTE: Thus far tested on R8A7791 Koelsch
---
 arch/arm/boot/dts/r8a7790-lager.dts   | 1 +
 arch/arm/boot/dts/r8a7790-stout.dts   | 1 +
 arch/arm/boot/dts/r8a7791-koelsch.dts | 1 +
 arch/arm/boot/dts/r8a7791-porter.dts  | 1 +
 arch/arm/boot/dts/r8a7793-gose.dts    | 1 +
 arch/arm/boot/dts/r8a7794-alt.dts     | 1 +
 arch/arm/boot/dts/r8a7794-silk.dts    | 1 +
 7 files changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index 097fd9317c6e..b88d4f4d5d9e 100644
--- a/arch/arm/boot/dts/r8a7790-lager.dts
+++ b/arch/arm/boot/dts/r8a7790-lager.dts
@@ -671,6 +671,7 @@ &ether {
 
 	phy1: ethernet-phy@1 {
 		reg = <1>;
+		reset-gpios = <&gpio5 31 GPIO_ACTIVE_LOW>;
 		interrupt-parent = <&irqc0>;
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
 		micrel,led-mode = <1>;
diff --git a/arch/arm/boot/dts/r8a7790-stout.dts b/arch/arm/boot/dts/r8a7790-stout.dts
index a315ba749aa4..98dcfcbf0b70 100644
--- a/arch/arm/boot/dts/r8a7790-stout.dts
+++ b/arch/arm/boot/dts/r8a7790-stout.dts
@@ -200,6 +200,7 @@ &ether {
 
 	phy1: ethernet-phy@1 {
 		reg = <1>;
+		reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
 		interrupt-parent = <&irqc0>;
 		interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
 		micrel,led-mode = <1>;
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index 2b096d5e06fb..6619689a17d4 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -630,6 +630,7 @@ &ether {
 
 	phy1: ethernet-phy@1 {
 		reg = <1>;
+		reset-gpios = <&gpio5 22 GPIO_ACTIVE_LOW>;
 		interrupt-parent = <&irqc0>;
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
 		micrel,led-mode = <1>;
diff --git a/arch/arm/boot/dts/r8a7791-porter.dts b/arch/arm/boot/dts/r8a7791-porter.dts
index f9ece7ab2010..2ba2e8e5f1c3 100644
--- a/arch/arm/boot/dts/r8a7791-porter.dts
+++ b/arch/arm/boot/dts/r8a7791-porter.dts
@@ -304,6 +304,7 @@ &ether {
 
 	phy1: ethernet-phy@1 {
 		reg = <1>;
+		reset-gpios = <&gpio5 22 GPIO_ACTIVE_LOW>;
 		interrupt-parent = <&irqc0>;
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
 		micrel,led-mode = <1>;
diff --git a/arch/arm/boot/dts/r8a7793-gose.dts b/arch/arm/boot/dts/r8a7793-gose.dts
index 22ca7cd1e7d2..4da82f1e1e94 100644
--- a/arch/arm/boot/dts/r8a7793-gose.dts
+++ b/arch/arm/boot/dts/r8a7793-gose.dts
@@ -588,6 +588,7 @@ &ether {
 
 	phy1: ethernet-phy@1 {
 		reg = <1>;
+		reset-gpios = <&gpio5 22 GPIO_ACTIVE_LOW>;
 		interrupt-parent = <&irqc0>;
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
 		micrel,led-mode = <1>;
diff --git a/arch/arm/boot/dts/r8a7794-alt.dts b/arch/arm/boot/dts/r8a7794-alt.dts
index f79fce74cd9c..7aa1e8ca808b 100644
--- a/arch/arm/boot/dts/r8a7794-alt.dts
+++ b/arch/arm/boot/dts/r8a7794-alt.dts
@@ -340,6 +340,7 @@ &ether {
 
 	phy1: ethernet-phy@1 {
 		reg = <1>;
+		reset-gpios = <&gpio1 24 GPIO_ACTIVE_LOW>;
 		interrupt-parent = <&irqc0>;
 		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
 		micrel,led-mode = <1>;
diff --git a/arch/arm/boot/dts/r8a7794-silk.dts b/arch/arm/boot/dts/r8a7794-silk.dts
index 2c16ad854300..3c0ed684f4a1 100644
--- a/arch/arm/boot/dts/r8a7794-silk.dts
+++ b/arch/arm/boot/dts/r8a7794-silk.dts
@@ -391,6 +391,7 @@ &ether {
 
 	phy1: ethernet-phy@1 {
 		reg = <1>;
+		reset-gpios = <&gpio1 24 GPIO_ACTIVE_LOW>;
 		interrupt-parent = <&irqc0>;
 		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
 		micrel,led-mode = <1>;
-- 
2.24.1