On 2/23/19 17:52, Bjorn Andersson wrote:

On Thu 07 Feb 03:17 PST 2019, Jorge Ramirez-Ortiz wrote:

quoted

Binding description for Qualcomm's Synopsys 1.0.0 SuperSpeed phy
controller embedded in QCS404.

Based on Sriharsha Allenki's [off-list ref] original
definitions.

Signed-off-by: Jorge Ramirez-Ortiz <redacted>
---
 .../bindings/phy/qcom,snps-usb-ssphy.txt      | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/qcom,snps-usb-ssphy.txt

diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-usb-ssphy.txt b/Documentation/devicetree/bindings/phy/qcom,snps-usb-ssphy.txt
new file mode 100644
index 000000000000..354e6f9cef62
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,snps-usb-ssphy.txt

@@ -0,0 +1,79 @@
+Qualcomm Synopsys 1.0.0 SS phy controller
+===========================================
+
+Qualcomm 1.0.0 SS phy controller supports SuperSpeed USB connectivity on
+some Qualcomm platforms.
+
+Required properties:
+
+- compatible:
+    Value type: <string>
+    Definition: Should contain "qcom,snps-usb-ssphy".

Per Rob's request make this:

Should contain "qcom,qcs404-snps-usb-ssphy" and "qcom,snps-usb-ssphy"

ok

You can then leave the driver matching on qcom,snps-usb-ssphy for now
and if we ever find this to be incompatible with other platforms we can
make the driver match on the platform-specific compatible.

ok

quoted

+
+- reg:
+    Value type: <prop-encoded-array>
+    Definition: USB PHY base address and length of the register map.
+
+- #phy-cells:
+    Value type: <u32>
+    Definition: Should be 0. See phy/phy-bindings.txt for details.
+
+- clocks:
+    Value type: <prop-encoded-array>
+    Definition: See clock-bindings.txt section "consumers". List of
+		 three clock specifiers for reference, phy core and
+		 pipe clocks.
+
+- clock-names:
+    Value type: <string>
+    Definition: Names of the clocks in 1-1 correspondence with the "clocks"
+		 property. Must contain "ref", "phy" and "pipe".
+
+- vdd-supply:
+    Value type: <phandle>
+    Definition: phandle to the regulator VDD supply node.
+
+- vdda1p8-supply:
+    Value type: <phandle>
+    Definition: phandle to the regulator 1.8V supply node.
+
+Optional properties:
+
+- resets:
+    Value type: <prop-encoded-array>
+    Definition: See reset.txt section "consumers". Specifiers for COM and
+		 PHY resets.
+
+- reset-names:
+    Value type: <string>
+    Definition: Names of the resets in 1-1 correspondence with the "resets"
+		 property. Must contain "com" and "phy" if the property is
+		 specified.
+
+Required child nodes:
+
+- usb connector node as defined in bindings/connector/usb-connector.txt
+  containing the property vbus-supply.
+
+Example:
+
+usb3_phy: usb3-phy@78000 {
+	compatible = "qcom,snps-usb-ssphy";
+	reg = <0x78000 0x400>;
+	#phy-cells = <0>;
+	clocks = <&rpmcc RPM_SMD_LN_BB_CLK>,
+		 <&gcc GCC_USB_HS_PHY_CFG_AHB_CLK>,
+		 <&gcc GCC_USB3_PHY_PIPE_CLK>;
+	clock-names = "ref", "phy", "pipe";
+	resets = <&gcc GCC_USB3_PHY_BCR>,
+		 <&gcc GCC_USB3PHY_PHY_BCR>;
+	reset-names = "com", "phy";
+	vdd-supply = <&vreg_l3_1p05>;
+	vdda1p8-supply = <&vreg_l5_1p8>;
+	usb3_c_connector: usb3-c-connector {

The USB-C connector is attached both to the HS and SS PHYs, so I think
you should represent this external to this node and use of_graph to
query it.

but AFAICS we wont be able to retrieve the vbux-supply from an external
node (that interface does not exist).

rob, do you have a suggestion?

So the connector should look similar to example 2 in
connector/usb-connector.txt.

Regards,
Bjorn

quoted

+		compatible = "usb-c-connector";
+		label = "USB-C";
+		type = "micro";
+		vbus-supply = <&usb3_vbus_reg>;
+	};
+};
-- 
2.20.1

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