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[v3,0/2] phy: cadence: Add driver and dt-bindings for Sierra PHY

Message ID 1542040906-9877-1-git-send-email-adouglas@cadence.com
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Series phy: cadence: Add driver and dt-bindings for Sierra PHY | expand

Message

Alan Douglas Nov. 12, 2018, 4:41 p.m. UTC 
The Cadence Sierra PHY supports a number of different protocols.  This
series adds a driver with support for USB3 and PCIe modes.

Only one clock frequency is currently supported, so the value of clock
provided in device tree is ignored.

Changes since v2:
* Rebased on 4.20-rc1
* Renamed cdns-sierra-phy.txt to phy-cadence-sierra.txt, to match DP PHY
* Renamed phy-cdns-sierra.c to phy-cadence-sierra.c, to match DP PHY
* Removed blank line at end of devicetree bindings description

Changes since v1:
* Moved subnode resets into each subnode in devicetree bindings
* Modified driver to put subnode resets on exit
* Changed driver filename to phy-cdns-sierra.c

Changes since RFC v2:
* Devicetree bindings modified as suggested by Rob Herring.
* Tidy up and correction of return paths in probe function.

Changes since RFC v1:
* Each group of lanes is now treated as a subnode, and a generic PHY
  device is created for each group.
* General cleanup based on comments
* A reset is now required for each subnode.  The complete PHY block
  is taken out of reset at initial probe, and remains out of reset.
* Added a binding to allow for hardware configuration of PHY registers


Alan Douglas (2):
  dt-bindings: phy: Document cadence Sierra PHY bindings
  phy: cadence: Add driver for Sierra PHY

 .../devicetree/bindings/phy/phy-cadence-sierra.txt |  67 ++++
 drivers/phy/cadence/Kconfig                        |   9 +-
 drivers/phy/cadence/Makefile                       |   1 +
 drivers/phy/cadence/phy-cadence-sierra.c           | 395 +++++++++++++++++++++
 4 files changed, 471 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/phy/phy-cadence-sierra.txt
 create mode 100644 drivers/phy/cadence/phy-cadence-sierra.c