Re: [PATCH v7 1/9] dt-bindings: usb: qcom,dwc3: Add bindings for SC8280 Multiport

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On 5/2/2023 2:17 PM, Krzysztof Kozlowski wrote:
On 02/05/2023 10:35, Krishna Kurapati PSSNV wrote:


On 5/2/2023 1:18 PM, Krzysztof Kozlowski wrote:
On 01/05/2023 16:34, Krishna Kurapati wrote:
Add the compatible string for SC8280 Multiport USB controller from
Qualcomm.

There are 4 power event irq interrupts supported by this controller
(one for each port of multiport). Added all the 4 as non-optional
interrupts for SC8280XP-MP

Signed-off-by: Krishna Kurapati <quic_kriskura@xxxxxxxxxxx>
---
   .../devicetree/bindings/usb/qcom,dwc3.yaml    | 21 +++++++++++++++++++
   1 file changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
index d84281926f10..2c96da1ce5b8 100644
--- a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
@@ -26,6 +26,7 @@ properties:
             - qcom,sc7180-dwc3
             - qcom,sc7280-dwc3
             - qcom,sc8280xp-dwc3
+          - qcom,sc8280xp-dwc3-mp

SC8280xp comes with two USB controllers: one single-port and one multi-port?

Hi Krzysztof,

    SC8280XP comes with 3 controllers. The first two are single port
controller and the third one is a multiport controller. In DTSI:
usb_0 / usb1: have compatible set to : "qcom,sc8280xp-dwc3"

And multiport controller has it set to "qcom,sc8280xp-dwc3-mp"

OK, then this looks fine.

Please add the compatible to existing allOf:if:then to constrain clocks
and other pieces. If none of existing if:then: matches your case, add
new one.

Best regards,
Krzysztof


Thanks Krzysztof. One query:

Clocks are same for both single/multiport controllers. Would the following be fine ?

diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
index 2c96da1ce5b8..c0f4745febf0 100644
--- a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
@@ -263,6 +263,7 @@ allOf:
           contains:
             enum:
               - qcom,sc8280xp-dwc3
+             - qcom,sc8280xp-dwc3-mp
     then:
       properties:
         clocks:

Regards,
Krishna,



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