| Message ID | 20200902133543.17222-3-rogerq@ti.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | usb: cdns,usb3: Convert DT binding to YAML | expand |
On Wed, 02 Sep 2020 16:35:42 +0300, Roger Quadros wrote: > Controller version 0x0002450D has USB2 PHY RX sensitivity issues > that needs to be worked around by enabling phyrst-a-enable bit > in PHYRST_CFG register. > > There is no way to know controller version before device controller > is started and the workaround needs to be applied for both host and > device modes, so we add this DT property. > > Signed-off-by: Roger Quadros <rogerq@ti.com> > --- > Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml index 7bc0263accee..e670adc955e1 100644 --- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml +++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml @@ -58,6 +58,10 @@ properties: buffers expressed in KB $ref: /schemas/types.yaml#/definitions/uint32 + cdns,phyrst-a-enable: + description: Enable resetting of PHY if Rx fail is detected + type: boolean + required: - compatible - reg
Controller version 0x0002450D has USB2 PHY RX sensitivity issues that needs to be worked around by enabling phyrst-a-enable bit in PHYRST_CFG register. There is no way to know controller version before device controller is started and the workaround needs to be applied for both host and device modes, so we add this DT property. Signed-off-by: Roger Quadros <rogerq@ti.com> --- Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 4 ++++ 1 file changed, 4 insertions(+)