dt-bindings: phy: qcom,qmp-usb3-dp: Add DP phy information

This binding only describes the USB phy inside the USB3 + DP "combo"
phy. Add information for the DP phy and describe the sub-nodes that
represent the DP and USB3 phys that exist inside the combo wrapper.
Remove reg-names from required properties because it isn't required nor
used by the kernel driver.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: <devicetree@vger.kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200916231202.3637932-2-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml

@@ -13,17 +13,21 @@ maintainers:
 properties:
   compatible:
     enum:
+      - qcom,sc7180-qmp-usb3-dp-phy
       - qcom,sc7180-qmp-usb3-phy
+      - qcom,sdm845-qmp-usb3-dp-phy
       - qcom,sdm845-qmp-usb3-phy
   reg:
     items:
-      - description: Address and length of PHY's common serdes block.
+      - description: Address and length of PHY's USB serdes block.
       - description: Address and length of the DP_COM control block.
+      - description: Address and length of PHY's DP serdes block.
 
   reg-names:
     items:
-      - const: reg-base
+      - const: usb
       - const: dp_com
+      - const: dp
 
   "#clock-cells":
     enum: [ 1, 2 ]
@@ -74,16 +78,74 @@ properties:
 
 #Required nodes:
 patternProperties:
-  "^phy@[0-9a-f]+$":
+  "^usb3-phy@[0-9a-f]+$":
     type: object
     description:
-      Each device node of QMP phy is required to have as many child nodes as
-      the number of lanes the PHY has.
+      The USB3 PHY.
+
+    properties:
+      reg:
+        items:
+          - description: Address and length of TX.
+          - description: Address and length of RX.
+          - description: Address and length of PCS.
+          - description: Address and length of TX2.
+          - description: Address and length of RX2.
+          - description: Address and length of pcs_misc.
+
+      clocks:
+        items:
+          - description: pipe clock
+
+      clock-names:
+        items:
+          - const: pipe0
+
+      clock-output-names:
+        items:
+          - const: usb3_phy_pipe_clk_src
+
+      '#clock-cells':
+        const: 0
+
+      '#phy-cells':
+        const: 0
+
+    required:
+      - reg
+      - clocks
+      - clock-names
+      - '#clock-cells'
+      - '#phy-cells'
+
+  "^dp-phy@[0-9a-f]+$":
+    type: object
+    description:
+      The DP PHY.
+
+    properties:
+      reg:
+        items:
+          - description: Address and length of TX.
+          - description: Address and length of RX.
+          - description: Address and length of PCS.
+          - description: Address and length of TX2.
+          - description: Address and length of RX2.
+
+      '#clock-cells':
+        const: 1
+
+      '#phy-cells':
+        const: 0
+
+    required:
+      - reg
+      - '#clock-cells'
+      - '#phy-cells'
 
 required:
   - compatible
   - reg
-  - reg-names
   - "#clock-cells"
   - "#address-cells"
   - "#size-cells"
@@ -101,14 +163,15 @@ examples:
   - |
     #include <dt-bindings/clock/qcom,gcc-sdm845.h>
     usb_1_qmpphy: phy-wrapper@88e9000 {
-        compatible = "qcom,sdm845-qmp-usb3-phy";
+        compatible = "qcom,sdm845-qmp-usb3-dp-phy";
         reg = <0x088e9000 0x18c>,
-              <0x088e8000 0x10>;
-        reg-names = "reg-base", "dp_com";
+              <0x088e8000 0x10>,
+              <0x088ea000 0x40>;
+        reg-names = "usb", "dp_com", "dp";
         #clock-cells = <1>;
         #address-cells = <1>;
         #size-cells = <1>;
-        ranges = <0x0 0x088e9000 0x1000>;
+        ranges = <0x0 0x088e9000 0x2000>;
 
         clocks = <&gcc GCC_USB3_PRIM_PHY_AUX_CLK>,
                  <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
@@ -123,7 +186,7 @@ examples:
         vdda-phy-supply = <&vdda_usb2_ss_1p2>;
         vdda-pll-supply = <&vdda_usb2_ss_core>;
 
-        phy@200 {
+        usb3-phy@200 {
             reg = <0x200 0x128>,
                   <0x400 0x200>,
                   <0xc00 0x218>,
@@ -136,4 +199,14 @@ examples:
             clock-names = "pipe0";
             clock-output-names = "usb3_phy_pipe_clk_src";
         };
+
+        dp-phy@88ea200 {
+            reg = <0xa200 0x200>,
+                  <0xa400 0x200>,
+                  <0xaa00 0x200>,
+                  <0xa600 0x200>,
+                  <0xa800 0x200>;
+            #clock-cells = <1>;
+            #phy-cells = <0>;
+        };
     };