[PATCH 2/3] dt-bindings: usb: ci-hdrc-usb2: add samsung,picophy-rise-fall-time-adjust property

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The samsung,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.

Signed-off-by: Xu Yang <xu.yang_2@xxxxxxx>
---
 .../devicetree/bindings/usb/ci-hdrc-usb2.yaml          | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
index 782402800d4a..d84c66c342ac 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
@@ -292,6 +292,16 @@ properties:
     minimum: 0x0
     maximum: 0xf
 
+  samsung,picophy-rise-fall-time-adjust:
+    description:
+      HS Transmitter Rise/Fall Time Adjustment. Adjust the rise/fall times
+      of the high-speed transmitter waveform. The range is from 0x0 to 0x3,
+      the default value is 0x1. Details can refer to TXRISETUNE0 bit of
+      USBNC_n_PHY_CFG1.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0x0
+    maximum: 0x3
+
   usb-phy:
     description: phandle for the PHY device. Use "phys" instead.
     $ref: /schemas/types.yaml#/definitions/phandle
-- 
2.34.1




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