Re: [PATCH v8 7/9] arm64: dts: qcom: sc8280xp: Add multiport controller node for SC8280

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On 5/15/2023 7:56 PM, Johan Hovold wrote:
On Sun, May 14, 2023 at 11:19:15AM +0530, Krishna Kurapati wrote:
Add USB and DWC3 node for tertiary port of SC8280 along with multiport
IRQ's and phy's. This will be used as a base for SA8295P and SA8295-Ride
platforms.

Signed-off-by: Krishna Kurapati <quic_kriskura@xxxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 66 ++++++++++++++++++++++++++
  1 file changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
index 8fa9fbfe5d00..50f6a8424537 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -3133,6 +3133,72 @@ usb_1_role_switch: endpoint {
  			};
  		};
+ usb_2: usb@a4f8800 {

As I believe someone already pointed out, this node is not in sort order
(i.e. it should go before usb@a6f8800).

Hi Johan,

I missed that message, but since I named it usb_2, so I placed it in order after usb_1. Hope that is fine !!

+			compatible = "qcom,sc8280xp-dwc3-mp", "qcom,dwc3";
+			reg = <0 0x0a4f8800 0 0x400>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+
+			clocks = <&gcc GCC_CFG_NOC_USB3_MP_AXI_CLK>,
+				 <&gcc GCC_USB30_MP_MASTER_CLK>,
+				 <&gcc GCC_AGGRE_USB3_MP_AXI_CLK>,
+				 <&gcc GCC_USB30_MP_SLEEP_CLK>,
+				 <&gcc GCC_USB30_MP_MOCK_UTMI_CLK>,
+				 <&gcc GCC_AGGRE_USB_NOC_AXI_CLK>,
+				 <&gcc GCC_AGGRE_USB_NOC_NORTH_AXI_CLK>,
+				 <&gcc GCC_AGGRE_USB_NOC_SOUTH_AXI_CLK>,
+				 <&gcc GCC_SYS_NOC_USB_AXI_CLK>;
+			clock-names = "cfg_noc", "core", "iface", "sleep", "mock_utmi",
+				      "noc_aggr", "noc_aggr_north", "noc_aggr_south", "noc_sys";
+
+			assigned-clocks = <&gcc GCC_USB30_MP_MOCK_UTMI_CLK>,
+					  <&gcc GCC_USB30_MP_MASTER_CLK>;
+			assigned-clock-rates = <19200000>, <200000000>;
+
+			interrupts-extended = <&pdc 127 IRQ_TYPE_EDGE_RISING>,
+					      <&pdc 126 IRQ_TYPE_EDGE_RISING>,
+					      <&pdc 16 IRQ_TYPE_LEVEL_HIGH>,
+					      <&intc GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>,
+					      <&intc GIC_SPI 135 IRQ_TYPE_LEVEL_HIGH>,
+					      <&intc GIC_SPI 857 IRQ_TYPE_LEVEL_HIGH>,
+					      <&intc GIC_SPI 856 IRQ_TYPE_LEVEL_HIGH>;
+
+			interrupt-names = "dp_hs_phy_irq",
+					  "dm_hs_phy_irq",
+					  "ss_phy_irq",
+					  "pwr_event_1",
+					  "pwr_event_2",
+					  "pwr_event_3",
+					  "pwr_event_4";
+
+			power-domains = <&gcc USB30_MP_GDSC>;
+			required-opps = <&rpmhpd_opp_nom>;
+
+			resets = <&gcc GCC_USB30_MP_BCR>;
+
+			interconnects = <&aggre1_noc MASTER_USB3_1 0 &mc_virt SLAVE_EBI1 0>,
+					<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_USB3_1 0>;

This is not the correct interconnect master and slave; it should be
MASTER_USB3_MP and SLAVE_USB3_MP.

Thanks for pointing it out. I need to check how it was working all these days. (Probably since both of them vote for the same NOC, it didn't show any affect)
+			interconnect-names = "usb-ddr", "apps-usb";

Looks like 'wakeup-source' is missing here too.


I believe this property was added to enable wakeup from system suspend in host mode. I didn't add this property as currently I don't need to support wakeup. If any requirement comes in future, then I might need to add dp/dm interrupts (if any) for other ports as well and then need to change driver code to enable/disable them on suspend/resume.

+
+			status = "disabled";
+
+			usb_2_dwc3: usb@a400000 {
+				compatible = "snps,dwc3";
+				reg = <0 0x0a400000 0 0xcd00>;
+				interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>;
+				iommus = <&apps_smmu 0x800 0x0>;
+				phys = <&usb_2_hsphy0>, <&usb_2_qmpphy0>,
+					<&usb_2_hsphy1>, <&usb_2_qmpphy1>,
+					<&usb_2_hsphy2>,
+					<&usb_2_hsphy3>;
+				phy-names = "usb2-port0", "usb3-port0",
+						"usb2-port1", "usb3-port1",
+						"usb2-port2",
+						"usb2-port3";

The phys and phy-names continuation lines above are still not aligned.

Missed it. Will fix it in next version.

Thanks,
Krishna,
+			};
+		};
+
  		mdss0: display-subsystem@ae00000 {
  			compatible = "qcom,sc8280xp-mdss";
  			reg = <0 0x0ae00000 0 0x1000>;

Johan



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