[PATCH v2 4/4] arm64: dts: rockchip: Add PCIe clkreq stuff for RK3588 EVB1

Bjorn Helgaas
2025-11-18T21:43:40Z

From: Shawn Lin <shawn.lin@rock-chips.com>

Add supports-clkreq and pinmux for PCIe ASPM L1 substates.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hans Zhang <hans.zhang@cixtech.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/1761187883-150120-2-git-send-email-shawn.lin@rock-chips.com
---
arch/arm64/boot/dts/rockchip/rk3588-evb1-v10.dts | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-evb1-v10.dts b/arch/arm64/boot/dts/rockchip/rk3588-evb1-v10.dts
index ff1ba5ed56ef..c9d284cb738b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-evb1-v10.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-evb1-v10.dts
@@ -522,6 +522,7 @@ &pcie2x1l0 {
pinctrl-names = "default";
pinctrl-0 = <&pcie2_0_rst>, <&pcie2_0_wake>, <&pcie2_0_clkreq>, <&wifi_host_wake_irq>;
reset-gpios = <&gpio4 RK_PA5 GPIO_ACTIVE_HIGH>;
+ supports-clkreq;
vpcie3v3-supply = <&vcc3v3_wlan>;
status = "okay";

@@ -545,7 +546,8 @@ wifi: wifi@0,0 {
&pcie2x1l1 {
reset-gpios = <&gpio4 RK_PA2 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
- pinctrl-0 = <&pcie2_1_rst>, <&rtl8111_isolate>;
+ pinctrl-0 = <&pcie2_1_rst>, <&rtl8111_isolate>, <&pcie30x1m1_1_clkreqn>;
+ supports-clkreq;
status = "okay";
};

@@ -555,7 +557,8 @@ &pcie30phy {

&pcie3x4 {
pinctrl-names = "default";
- pinctrl-0 = <&pcie3_reset>;
+ pinctrl-0 = <&pcie3_reset>, <&pcie30x4m1_clkreqn>;
+ supports-clkreq;
reset-gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>;
vpcie3v3-supply = <&vcc3v3_pcie30>;
status = "okay";
--
2.43.0