u-boot.git/drivers/phy, branch v2025.10

phy: rockchip: typec: Fix improper use of UCLASS_PHY

2025-08-30T16:48:15+00:00

The Rockchip TypeC glue driver improperly present itself as a UCLASS_PHY
driver, without ever implementing the required phy_ops.

This is something that in special circumstances can lead to a NULL
pointer dereference followed by a SError crash.

Change the glue driver to use UCLASS_NOP to fix this.

Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: inno-usb2: Fix improper use of UCLASS_PHY

2025-08-30T16:48:15+00:00

The Rockchip USB2PHY glue driver improperly present itself as a
UCLASS_PHY driver, without ever implementing the required phy_ops.

This is something that in special circumstances can lead to a NULL
pointer dereference followed by a SError crash.

Change the glue driver to use UCLASS_NOP to fix this.

Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: naneng-combphy: Use syscon_regmap_lookup_by_phandle

2025-08-30T16:48:15+00:00

Change to use syscon_regmap_lookup_by_phandle() helper instead of
finding the syscon udevice and making a call to syscon_get_regmap().

No runtime change is expected with this simplication.

Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: naneng-combphy: Simplify init ops

2025-08-30T16:48:15+00:00

The init ops for Rockchip COMBPHY driver is more complex than it needs
to be, e.g. declaring multiple init functions that only differ in the
error message.

Simplify the init ops based on code from the Linux mainline driver.

This change also ensure that errors returned from combphy_cfg() and
reset_deassert_bulk() is propertly propagated to the caller. No other
runtime change is expected with this simplication.

Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: naneng-combphy: Fix Generic PHY reference counting

2025-08-30T16:48:15+00:00

Generic PHY reference counting helps ensure driver ops for init/exit and
power on/off are called at correct state. For this to work the PHY
driver must initialize PHY-id to a persistent value in of_xlate ops.

The Rockchip COMBPHY driver does not initialize the PHY-id field, this
typically lead to use of unshared reference counting among different
struct phy instances.

Initialize the PHY-id in of_xlate ops to ensure use of shared reference
counting among all struct phy instances.

Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: usbdp: Simplify init ops

2025-08-30T16:48:15+00:00

With working shared reference counting for Generic PHY ops there is no
need for the Rockchip USBDP PHY driver to keep its own status (reference
counting) handling.

Simplify the init ops now that shared reference counting is working.
This also removes the unused mode_change handling as part of the
simplication.

No runtime change is expected with this simplication.

Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: usbdp: Fix Generic PHY reference counting

2025-08-30T16:48:15+00:00

Generic PHY reference counting helps ensure driver ops for init/exit and
power on/off are called at correct state. For this to work the PHY
driver must initialize PHY-id to a persistent value in of_xlate ops.

The Rockchip USBDP PHY driver does not initialize the PHY-id field, this
typically lead to use of unshared reference counting among different
struct phy instances.

Initialize the PHY-id in of_xlate ops to ensure use of shared reference
counting among all struct phy instances.

E.g. on a ROCK 5B following could be observed:

  => usb start
  starting USB...
  [...]
  Bus usb@fc400000: 2 USB Device(s) found
         scanning usb for storage devices... 1 Storage Device(s) found

  => usb reset
  resetting USB...
  [...]
  rockchip_udphy phy@fed90000: cmn ana lcpll lock timeout
  rockchip_udphy phy@fed90000: failed to init usbdp combophy
  rockchip_udphy phy@fed90000: PHY: Failed to init phy@fed90000: -110.
  Can't init PHY1
  Bus usb@fc400000: probe failed, error -110
         scanning usb for storage devices... 0 Storage Device(s) found

With shared reference counting this is fixed:

  => usb reset
  resetting USB...
  [...]
  Bus usb@fc400000: 2 USB Device(s) found
         scanning usb for storage devices... 1 Storage Device(s) found

Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: naneng-combphy: Add support for RK3528

2025-08-30T15:26:08+00:00

Add support for the PCIe/USB3 combo PHY used in the RK3528 SoC.

Config values are taken from vendor U-Boot linux-6.1-stan-rkr5 tag.

Signed-off-by: Jianwei Zheng 
Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: naneng-combphy: Add support for RK3576

2025-08-30T15:01:44+00:00

Add support for the PCIe/USB3/SATA combo PHYs used in the RK3576 SoC.

Config values are taken from vendor U-Boot linux-6.1-stan-rkr5 tag.

Signed-off-by: Jon Lin 
Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang

phy: rockchip: usbdp: Add support for RK3576

2025-08-30T15:01:29+00:00

Add support for the USB3.0+DP PHY used in the RK3576 SoC.

Config values are taken from vendor U-Boot linux-6.1-stan-rkr5 tag.

Signed-off-by: Frank Wang 
Signed-off-by: Jonas Karlman 
Reviewed-by: Kever Yang