[PATCH 5/5] arm64: dts: imx95: add ref clock for pcie nodes

Frank Li
2025-01-28T21:23:23Z

Add "ref" clock for i.MX95's pcie and fix below CHECK_DTBS warnings:
arch/arm64/boot/dts/freescale/imx95-19x19-evk.dtb: pcie@4c300000: clock-names: ['pcie', 'pcie_bus', 'pcie_phy', 'pcie_aux'] is too short
from schema $id: http://devicetree.org/schemas/pci/fsl,imx6q-pcie.yaml

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
arch/arm64/boot/dts/freescale/imx95.dtsi | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index 2cebeda43a52d..f0dc8be2abffa 100644
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
@@ -1537,6 +1537,14 @@ smmu: iommu@490d0000 {
};
};

+ hsio_blk_ctl: syscon@4c0100c0 {
+ compatible = "nxp,imx95-hsio-blk-ctl", "syscon";
+ reg = <0x0 0x4c0100c0 0x0 0x1>;
+ #clock-cells = <1>;
+ power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>;
+ clocks = <&dummy>;
+ };
+
pcie0: pcie@4c300000 {
compatible = "fsl,imx95-pcie";
reg = <0 0x4c300000 0 0x10000>,
@@ -1564,8 +1572,9 @@ pcie0: pcie@4c300000 {
clocks = <&scmi_clk IMX95_CLK_HSIO>,
<&scmi_clk IMX95_CLK_HSIOPLL>,
<&scmi_clk IMX95_CLK_HSIOPLL_VCO>,
- <&scmi_clk IMX95_CLK_HSIOPCIEAUX>;
- clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux";
+ <&scmi_clk IMX95_CLK_HSIOPCIEAUX>,
+ <&hsio_blk_ctl 0>;
+ clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "ref";
assigned-clocks =<&scmi_clk IMX95_CLK_HSIOPLL_VCO>,
<&scmi_clk IMX95_CLK_HSIOPLL>,
<&scmi_clk IMX95_CLK_HSIOPCIEAUX>;
@@ -1637,8 +1646,9 @@ pcie1: pcie@4c380000 {
clocks = <&scmi_clk IMX95_CLK_HSIO>,
<&scmi_clk IMX95_CLK_HSIOPLL>,
<&scmi_clk IMX95_CLK_HSIOPLL_VCO>,
- <&scmi_clk IMX95_CLK_HSIOPCIEAUX>;
- clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux";
+ <&scmi_clk IMX95_CLK_HSIOPCIEAUX>,
+ <&hsio_blk_ctl 0>;
+ clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "ref";
assigned-clocks =<&scmi_clk IMX95_CLK_HSIOPLL_VCO>,
<&scmi_clk IMX95_CLK_HSIOPLL>,
<&scmi_clk IMX95_CLK_HSIOPCIEAUX>;
--
2.34.1