Re: [PATCH 3/8] arm64: dts: qcom: ipq5332: Add USB Super-Speed PHY node

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On 29/09/2023 11:42, Praveenkumar I wrote:
Add USB Super-Speed UNIPHY node and populate the phandle on
gcc node for the parent clock map.

Signed-off-by: Praveenkumar I <quic_ipkumar@xxxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/ipq5332.dtsi | 25 ++++++++++++++++++++++++-
  1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq5332.dtsi b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
index d3fef2f80a81..b08ffd8c094e 100644
--- a/arch/arm64/boot/dts/qcom/ipq5332.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
@@ -158,6 +158,29 @@ usbphy0: phy@7b000 {
  			status = "disabled";
  		};
+ usbphy1: phy@4b0000 {

Are there other USB PHYs on this platform?

+			compatible = "qcom,ipq5332-usb-uniphy";
+			reg = <0x4b0000 0x800>;
+
+			clocks = <&gcc GCC_PCIE3X1_PHY_AHB_CLK>,
+				 <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
+				 <&gcc GCC_USB0_PIPE_CLK>;
+			clock-names = "ahb",
+				      "cfg_ahb",
+				      "pipe";
+
+			resets =  <&gcc GCC_USB0_PHY_BCR>;
+
+			#clock-cells = <0>;
+			clock-output-names = "usb0_pipe_clk_src";

I'm not sure, what is the best approach her. For QMP USB and PCIe PHYs we had to use fixed names historically. On the other hand for QMP DP clocks we are fine with the generated names. I'd prefer the latter case.

+
+			qcom,phy-usb-mux-sel = <&tcsr 0x10540>;
+
+			#phy-cells = <0>;
+
+			status = "disabled";
+		};
+
  		qfprom: efuse@a4000 {
  			compatible = "qcom,ipq5332-qfprom", "qcom,qfprom";
  			reg = <0x000a4000 0x721>;
@@ -200,7 +223,7 @@ gcc: clock-controller@1800000 {
  				 <&sleep_clk>,
  				 <0>,
  				 <0>,
-				 <0>;
+				 <&usbphy1>;
  		};
tcsr_mutex: hwlock@1905000 {

--
With best wishes
Dmitry




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