[PATCH v2 0/2] Fix tuning on eUSB2 repeater

Luca Weiss luca.weiss at fairphone.com
Tue Jun 17 01:26:34 PDT 2025


Update the dt-bindings to remove the 'default' tuning values, since they
depend on the PMIC and are not guaranteed to be the same.

And add a fix into the driver to not zero-out all tuning registers if
they are not specified in the "init sequence", since zero is not the
reset value for most parameter and will lead to very unexpected tuning.

Signed-off-by: Luca Weiss <luca.weiss at fairphone.com>
---
Changes in v2:
- Fix wrong parameter used for refactored init tables
- Also drop "enum eusb2_reg_layout" completely since it's not used for
  anything now
- Use unsigned int instead of u8 in struct eusb2_repeater_init_tbl_reg
- Pick up tags
- Link to v1: https://lore.kernel.org/r/20250616-eusb2-repeater-tuning-v1-0-9457ff0fbf75@fairphone.com

---
Luca Weiss (2):
      dt-bindings: phy: qcom,snps-eusb2-repeater: Remove default tuning values
      phy: qualcomm: phy-qcom-eusb2-repeater: Don't zero-out registers

 .../bindings/phy/qcom,snps-eusb2-repeater.yaml     |  3 -
 drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c     | 83 ++++++++--------------
 2 files changed, 30 insertions(+), 56 deletions(-)
---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250616-eusb2-repeater-tuning-f56331c6b1fa

Best regards,
-- 
Luca Weiss <luca.weiss at fairphone.com>




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