[PATCH v2 1/2] dt-bindings: phy: qcom,snps-eusb2-repeater: Add more tuning overrides
From: Pengyu Luo
Date: Wed Apr 16 2025 - 08:06:02 EST
In downstream tree, many registers need to be overridden, it varies
from devices and platforms, not only HS trasmit amplitude(0x51),
HS disconnect threshold(0x53), Tx pre-emphasis tuning(0x57). And
some devices require different overrides for different dr_mode. So
add property entries for host mode, original entries will be used
for device mode.
Signed-off-by: Pengyu Luo <mitltlatltl@xxxxxxxxx>
---
.../phy/qcom,snps-eusb2-repeater.yaml | 41 +++++++++++++++++--
1 file changed, 38 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml
index d16a543a7..d0f5e770d 100644
--- a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml
@@ -36,25 +36,60 @@ properties:
qcom,tune-usb2-disc-thres:
$ref: /schemas/types.yaml#/definitions/uint8
- description: High-Speed disconnect threshold
+ description: High-Speed disconnect threshold for device mode
minimum: 0
maximum: 7
default: 0
qcom,tune-usb2-amplitude:
$ref: /schemas/types.yaml#/definitions/uint8
- description: High-Speed transmit amplitude
+ description: High-Speed transmit amplitude for device mode
minimum: 0
maximum: 15
default: 8
qcom,tune-usb2-preem:
$ref: /schemas/types.yaml#/definitions/uint8
- description: High-Speed TX pre-emphasis tuning
+ description: High-Speed TX pre-emphasis tuning for device mode
minimum: 0
maximum: 7
default: 5
+ qcom,tune-usb2-squelch:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: Squelch detection threshold tuning for device mode
+ minimum: 0
+ maximum: 7
+ default: 3
+
+ qcom,tune-usb2-disc-thres-host:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: High-Speed disconnect threshold for host mode
+ minimum: 0
+ maximum: 7
+ default: 0
+
+ qcom,tune-usb2-amplitude-host:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: High-Speed transmit amplitude for host mode
+ minimum: 0
+ maximum: 15
+ default: 8
+
+ qcom,tune-usb2-preem-host:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: High-Speed TX pre-emphasis tuning for host mode
+ minimum: 0
+ maximum: 7
+ default: 5
+
+ qcom,tune-usb2-squelch-host:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: Squelch detection threshold tuning for host mode
+ minimum: 0
+ maximum: 7
+ default: 3
+
required:
- compatible
- reg
--
2.49.0