| Message ID | 20230830-topic-eusb2_override-v1-1-ab23825385a8@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | EUSB2 repeater init sequence override | expand |
On Wed, Aug 30, 2023 at 04:40:15AM +0200, Konrad Dybcio wrote: > The EUSB2 repeater requires some alterations to its init sequence, > depending on board design. > > Add support for making the necessary changes to that sequence to make USB > functional on SM8550-based Xperia 1 V. > > They all have lackluster description due to lack of information. > > Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> > --- > .../bindings/phy/qcom,snps-eusb2-repeater.yaml | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml > index 029569d5fcf3..83fd6f936bf9 100644 > --- a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml > +++ b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml > @@ -32,6 +32,27 @@ properties: > > vdd3-supply: true > > + qcom,tune-hsdisc-value: Is '-value' redundant? '-thres' or '-threshold' would be more descriptive. > + $ref: /schemas/types.yaml#/definitions/uint8 > + description: High-Speed disconnect threshold > + minimum: 0 > + maximum: 7 > + default: 0 > + > + qcom,tune-iusb2-value: -amplitude? > + $ref: /schemas/types.yaml#/definitions/uint8 > + description: High-Speed trasmit amplitude > + minimum: 0 > + maximum: 15 > + default: 8 > + > + qcom,tune-usb2-preem-value: We have 'hs', 'iusb2', and 'usb2'. Can you be consistent? > + $ref: /schemas/types.yaml#/definitions/uint8 > + description: TX pre-emphasis tuning > + minimum: 0 > + maximum: 7 > + default: 5 > + > required: > - compatible > - reg > > -- > 2.42.0 >
On 5.09.2023 18:38, Rob Herring wrote: > On Wed, Aug 30, 2023 at 04:40:15AM +0200, Konrad Dybcio wrote: >> The EUSB2 repeater requires some alterations to its init sequence, >> depending on board design. >> >> Add support for making the necessary changes to that sequence to make USB >> functional on SM8550-based Xperia 1 V. >> >> They all have lackluster description due to lack of information. >> >> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> >> --- >> .../bindings/phy/qcom,snps-eusb2-repeater.yaml | 21 +++++++++++++++++++++ >> 1 file changed, 21 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml >> index 029569d5fcf3..83fd6f936bf9 100644 >> --- a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml >> +++ b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml >> @@ -32,6 +32,27 @@ properties: >> >> vdd3-supply: true >> >> + qcom,tune-hsdisc-value: > > Is '-value' redundant? > > '-thres' or '-threshold' would be more descriptive. All these names are essentially qcom,register-name-value But I do see your point, it probably makes sense to make it more human-readable. > >> + $ref: /schemas/types.yaml#/definitions/uint8 >> + description: High-Speed disconnect threshold >> + minimum: 0 >> + maximum: 7 >> + default: 0 >> + >> + qcom,tune-iusb2-value: > > -amplitude? ack > >> + $ref: /schemas/types.yaml#/definitions/uint8 >> + description: High-Speed trasmit amplitude transmit* >> + minimum: 0 >> + maximum: 15 >> + default: 8 >> + >> + qcom,tune-usb2-preem-value: > > We have 'hs', 'iusb2', and 'usb2'. Can you be consistent? Again, this is taken from register names. I can use 'usb2' everywhere if you wish. Konrad
diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml index 029569d5fcf3..83fd6f936bf9 100644 --- a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml +++ b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml @@ -32,6 +32,27 @@ properties: vdd3-supply: true + qcom,tune-hsdisc-value: + $ref: /schemas/types.yaml#/definitions/uint8 + description: High-Speed disconnect threshold + minimum: 0 + maximum: 7 + default: 0 + + qcom,tune-iusb2-value: + $ref: /schemas/types.yaml#/definitions/uint8 + description: High-Speed trasmit amplitude + minimum: 0 + maximum: 15 + default: 8 + + qcom,tune-usb2-preem-value: + $ref: /schemas/types.yaml#/definitions/uint8 + description: TX pre-emphasis tuning + minimum: 0 + maximum: 7 + default: 5 + required: - compatible - reg
The EUSB2 repeater requires some alterations to its init sequence, depending on board design. Add support for making the necessary changes to that sequence to make USB functional on SM8550-based Xperia 1 V. They all have lackluster description due to lack of information. Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> --- .../bindings/phy/qcom,snps-eusb2-repeater.yaml | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)