@@ -292,6 +292,18 @@ properties:
minimum: 0x0
maximum: 0xf
+ fsl,picophy-rise-fall-time-adjust:
+ description:
+ HS Transmitter Rise/Fall Time Adjustment. Adjust the rise/fall times
+ of the high-speed transmitter waveform. It has no unit. The rise/fall
+ time will be increased or decreased by a certain percentage relative
+ to design default time. (0:-10%; 1:design default; 2:+15%; 3:+20%)
+ Details can refer to TXRISETUNE0 bit of USBNC_n_PHY_CFG1.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+ default: 1
+
usb-phy:
description: phandle for the PHY device. Use "phys" instead.
$ref: /schemas/types.yaml#/definitions/phandle
The fsl,picophy-rise-fall-time-adjust property can help to adjust the rise/fall times of the high-speed transmitter waveform. The value can be 0~3. It has no unit. According to the description of USBNC_n_PHY_CFG1 register, the rise/fall time will be increased or decreased by a certain percentage relative to design default time if a value is given to this property. Signed-off-by: Xu Yang <xu.yang_2@nxp.com> --- Changes in v2: - rename property to fsl,picophy-rise-fall-time-adjust - add default: 1 - add some description in yaml and commit msg --- .../devicetree/bindings/usb/ci-hdrc-usb2.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+)