Linux PCI subsystem development
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From: Shawn Lin <shawn.lin@rock-chips.com>
To: Heiko Stuebner <heiko@sntech.de>,
	Manivannan Sadhasivam <mani@kernel.org>,
	Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-rockchip@lists.infradead.org,
	Niklas Cassel <cassel@kernel.org>,
	linux-pci@vger.kernel.org, Shawn Lin <shawn.lin@rock-chips.com>
Subject: [PATCH v2 2/2] arm64: dts: rockchip: Add PCIe clkreq stuff for RK3588 EVB1
Date: Wed, 22 Oct 2025 19:35:54 +0800	[thread overview]
Message-ID: <1761132954-177344-2-git-send-email-shawn.lin@rock-chips.com> (raw)
In-Reply-To: <1761132954-177344-1-git-send-email-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>
---

Changes in v2: None

 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 ff1ba5e..c9d284c 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 @@
 	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 @@
 &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 @@
 
 &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";
-- 
2.7.4


  reply	other threads:[~2025-10-22 11:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-22 11:35 [PATCH v2 1/2] PCI: dw-rockchip: Add L1sub support Shawn Lin
2025-10-22 11:35 ` Shawn Lin [this message]
2025-10-22 11:52   ` [PATCH v2 2/2] arm64: dts: rockchip: Add PCIe clkreq stuff for RK3588 EVB1 Hans Zhang
2025-10-22 11:52 ` [PATCH v2 1/2] PCI: dw-rockchip: Add L1sub support Hans Zhang
2025-10-22 12:22   ` Shawn Lin
2025-10-22 16:03     ` Bjorn Helgaas
2025-10-22 13:04 ` Manivannan Sadhasivam
2025-10-22 14:27   ` Shawn Lin
2025-10-22 16:03     ` Manivannan Sadhasivam
2025-10-23  0:39       ` Shawn Lin

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