[PATCH v3 0/3] phy: cix: Add Sky1 DisplayPort PHY support

From: Luo Liu

Date: Tue Oct 13 2026 - 06:34:30 EST


Add dt-bindings, driver and DTS support for the dedicated DisplayPort
PHY on the CIX Sky1 SoC.

The PHY exposes a PMA/CDB register interface and is controlled through
the generic PHY DP configure ops (link rate, lane count, SSC and
voltage swing).

Patch 1 adds the binding and MAINTAINERS entry.
Patch 2 adds the PHY driver.
Patch 3 describes the SoC node and enables it on Radxa Orion O6.

Changes in v3:
- Rename cix,external-dp to cix,edp (select eDP vs DP swing table)
- Restore TX_DIAG_ACYA on cix_dp_phy_set_lane_voltage() error paths
- Note that the PHY APB clock is managed by the DPTx driver

Changes in v2:
- Move MAINTAINERS into the binding patch; keep tabs; add R: entry
- Require resets; use exclusive reset in the driver
- Include linux/property.h; document Sky1 1/2-lane physical routing
- Rename DT label to dp_phy; enable it on sky1-orion-o6
- After CDB_ENABLE, wait for busy then idle to avoid a stale READY race

Luo Liu (3):
dt-bindings: phy: Add CIX Sky1 DP PHY
phy: cix: Add Sky1 DP PHY driver
arm64: dts: cix: Add Sky1 DP PHY node

.../bindings/phy/cix,sky1-dp-phy.yaml | 56 +
MAINTAINERS | 8 +
arch/arm64/boot/dts/cix/sky1-orion-o6.dts | 4 +
arch/arm64/boot/dts/cix/sky1.dtsi | 8 +
drivers/phy/Kconfig | 1 +
drivers/phy/Makefile | 1 +
drivers/phy/cix/Kconfig | 18 +
drivers/phy/cix/Makefile | 2 +
drivers/phy/cix/phy-cix-dp.c | 987 ++++++++++++++++++
9 files changed, 1085 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/cix,sky1-dp-phy.yaml
create mode 100644 drivers/phy/cix/Kconfig
create mode 100644 drivers/phy/cix/Makefile
create mode 100644 drivers/phy/cix/phy-cix-dp.c


base-commit: cee9395acd8043be0644b25c34bfa86623f2b935
--
2.25.1