arm64: dts: apple: t8103: Mark PCIe PERST# polarity active low in DT

As the name indicates, PERST# is active low. Fix the DT description to
match the HW behaviour.

Fixes: ff2a8d91d80c ("arm64: apple: Add PCIe node")
Link: https://lore.kernel.org/r/20211123180636.80558-3-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index fc8b2bb..e22c943 100644 (file)
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -7,6 +7,7 @@
  * Copyright The Asahi Linux Contributors
  */
 
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/apple-aic.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/apple.h>
@@ -281,7 +282,7 @@
                        port00: pci@0,0 {
                                device_type = "pci";
                                reg = <0x0 0x0 0x0 0x0 0x0>;
-                               reset-gpios = <&pinctrl_ap 152 0>;
+                               reset-gpios = <&pinctrl_ap 152 GPIO_ACTIVE_LOW>;
                                max-link-speed = <2>;
 
                                #address-cells = <3>;
@@ -301,7 +302,7 @@
                        port01: pci@1,0 {
                                device_type = "pci";
                                reg = <0x800 0x0 0x0 0x0 0x0>;
-                               reset-gpios = <&pinctrl_ap 153 0>;
+                               reset-gpios = <&pinctrl_ap 153 GPIO_ACTIVE_LOW>;
                                max-link-speed = <2>;
 
                                #address-cells = <3>;
@@ -321,7 +322,7 @@
                        port02: pci@2,0 {
                                device_type = "pci";
                                reg = <0x1000 0x0 0x0 0x0 0x0>;
-                               reset-gpios = <&pinctrl_ap 33 0>;
+                               reset-gpios = <&pinctrl_ap 33 GPIO_ACTIVE_LOW>;
                                max-link-speed = <1>;
 
                                #address-cells = <3>;