arm64: dts: rockchip: enable internal pull-up on PCIE_WAKE# for RK3399 Puma

[ Upstream commit 945a7c8570916650a415757d15d83e0fa856a686 ]

The PCIE_WAKE# has a diode used as a level-shifter, and is used as an
input pin. While the SoC default is to enable the pull-up, the core
rk3399 pinconf for this pin opted for pull-none. So as to not disturb
the behaviour of other boards which may rely on pull-none instead of
pull-up, set the needed pull-up only for RK3399 Puma.

Fixes: 60fd9f72ce8a ("arm64: dts: rockchip: add Haikou baseboard with RK3399-Q7 SoM")
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20240308-puma-diode-pu-v2-2-309f83da110a@theobroma-systems.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index aaa042fba1ebfe9b3ea72227f604fda7f1aae353..5455bdc2df841f2f5457749c45c33e56997d2fc9 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -430,6 +430,11 @@
        gpio1830-supply = <&vcc_1v8>;
 };
 
+&pcie_clkreqn_cpm {
+       rockchip,pins =
+               <2 RK_PD2 RK_FUNC_GPIO &pcfg_pull_up>;
+};
+
 &pinctrl {
        i2c8 {
                i2c8_xfer_a: i2c8-xfer {