ARM: tegra: apalis_t30: hog group for pcie switch reset gpio

The Apalis Evaluation Board uses Apalis GPIO7 on MXM3 pin 15 as reset
signal for its PLX PEX 8605 PCIe Switch.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra30-apalis-eval.dts b/arch/arm/boot/dts/tegra30-apalis-eval.dts
index bbde98f..9d9dda6 100644 (file)
--- a/arch/arm/boot/dts/tegra30-apalis-eval.dts
+++ b/arch/arm/boot/dts/tegra30-apalis-eval.dts
@@ -240,3 +240,13 @@
                vin-supply = <&reg_5v0>;
        };
 };
+
+&gpio {
+       /* Apalis GPIO7 MXM3 pin 15 PLX PEX 8605 PCIe Switch Reset */
+       pex-perst-n {
+               gpio-hog;
+               gpios = <TEGRA_GPIO(S, 7) GPIO_ACTIVE_HIGH>;
+               output-high;
+               line-name = "PEX_PERST_N";
+       };
+};