Freescale i.MX6 PCIe host controller bindings, through referenced
snps,dw-pcie-common.yaml schema, already document "reset-gpios", just
like Linux kernel did for a long time.  Use the preferred form over
"reset-gpio" which is deprecated since commit 42694f9f6407
("dt-bindings: PCI: add snps,dw-pcie.yaml") in 2021.

Linux kernel already properly parses GPIO active level from phandle
arguments, thus we can also drop "reset-gpio-active-high".

However this change will impact U-Boot, because it only parses
"reset-gpio" property for imx6q amd imx6sq.  Intention is to update
U-Boot to work with newer DTS, but any other out of tree user of this
DTS which did not implement undeprecated "reset-gpios" will be affected
as well.  There was plenty of time for these projects to switch to
undeprecated "reset-gpios", though.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

---

Changes in v2:
1. Fix subject prefix
2. Drop reset-gpio-active-high, update commit msg
---
 arch/arm/boot/dts/nxp/imx/imx6sx-nitrogen6sx.dts         | 2 +-
 arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi                | 2 +-
 arch/arm/boot/dts/nxp/imx/imx6sx-softing-vining-2000.dts | 3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6sx-nitrogen6sx.dts b/arch/arm/boot/dts/nxp/imx/imx6sx-nitrogen6sx.dts
index 1c1515a854c8..6dd382cffa3d 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6sx-nitrogen6sx.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6sx-nitrogen6sx.dts
@@ -224,7 +224,7 @@ &i2c3 {
 &pcie {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pcie>;
-	reset-gpio = <&gpio4 10 GPIO_ACTIVE_LOW>;
+	reset-gpios = <&gpio4 10 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
 
diff --git a/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi b/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi
index 3e238d8118fa..11e8efcc1fce 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi
@@ -282,7 +282,7 @@ codec: wm8962@1a {
 &pcie {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pcie>;
-	reset-gpio = <&gpio2 0 GPIO_ACTIVE_LOW>;
+	reset-gpios = <&gpio2 0 GPIO_ACTIVE_LOW>;
 	vpcie-supply = <&reg_pcie_gpio>;
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/nxp/imx/imx6sx-softing-vining-2000.dts b/arch/arm/boot/dts/nxp/imx/imx6sx-softing-vining-2000.dts
index 2ffbe2df4776..9be9ee92018f 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6sx-softing-vining-2000.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6sx-softing-vining-2000.dts
@@ -499,8 +499,7 @@ MX6SX_PAD_SD4_DATA7__USDHC4_DATA7	0x170f9
 &pcie {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pcie>;
-	reset-gpio = <&gpio4 6 GPIO_ACTIVE_HIGH>;
-	reset-gpio-active-high;
+	reset-gpios = <&gpio4 6 GPIO_ACTIVE_HIGH>;
 	status = "okay";
 };
 

-- 
2.51.0