[PATCH v4 00/10] Initial support for Cadence MHDP(HDMI/DP) for i.MX8MQ

[Sandor Yu]

The patch set initial support for Cadence MHDP(HDMI/DP) DRM bridge
drivers and Cadence HDP-TX PHY(HDMI/DP) drivers for iMX8MQ.

The patch set compose of DRM bridge drivers and PHY drivers.
Both of them need the followed two patches to pass build.
  drm: bridge: cadence: convert mailbox functions to macro functions
  phy: Add HDMI configuration options

DRM bridges driver patches:
  dts-bingings: display: bridge: Add MHDP HDMI bindings for i.MX8MQ
  drm: bridge: cadence: Add MHDP DP driver for i.MX8MQ
  dts-bindings: display: bridge: Add MHDP DP bindings for i.MX8MQ
  drm: bridge: cadence: Add MHDP HDMI driver for i.MX8MQ

PHY driver patches:
  dts-bindings: phy: Add Cadence HDP-TX DP PHY bindings
  phy: cadence: Add driver for HDP-TX DisplyPort PHY
  dts-bindings: phy: Add Cadence HDP-TX HDMI PHY bindings
  phy: cadence: Add driver for HDP-TX HDMI PHY

v3->v4:
dt-bindings:
- Correct dt-bindings coding style and address review comments.
- Add apb_clk description.
- Add output port for HDMI/DP connector
PHY:
- Alphabetically sorted in Kconfig and Makefile for DP and HDMI PHY
- Remove unused registers define from HDMI and DP PHY drivers.
- More description in phy_hdmi.h.
- Add apb_clk to HDMI and DP phy driver.
HDMI/DP:
- Use get_unaligned_le32() to replace hardcode type conversion
  in HDMI AVI infoframe data fill function.
- Add mailbox mutex lock in HDMI/DP driver for phy functions
  to reslove race conditions between HDMI/DP and PHY drivers.
- Add apb_clk to both HDMI and DP driver.
- Rename some function names and add prefix with "cdns_hdmi/cdns_dp".
- Remove bpc 12 and 16 optional that not supported.

v2->v3:
Address comments for dt-bindings files.
- Correct dts-bindings file names 
  Rename phy-cadence-hdptx-dp.yaml to cdns,mhdp-imx8mq-dp.yaml
  Rename phy-cadence-hdptx-hdmi.yaml to cdns,mhdp-imx8mq-hdmi.yaml
- Drop redundant words and descriptions.
- Correct hdmi/dp node name.

v2 is a completely different version compared to v1.
Previous v1 can be available here [1].

v1->v2:
- Reuse Cadence mailbox access functions from mhdp8546 instead of
  rockchip DP.
- Mailbox access functions be convert to marco functions
  that will be referenced by HDP-TX PHY(HDMI/DP) driver too.
- Plain bridge instead of component driver.
- Standalone Cadence HDP-TX PHY(HDMI/DP) driver.
- Audio driver are removed from the patch set, it will be add in another
  patch set later.

[1] https://patchwork.kernel.org/project/linux-rockchip/cover/cover.1590982881.git.Sandor.yu@nxp.com/

Sandor Yu (10):
  drm: bridge: cadence: convert mailbox functions to macro functions
  dt-bindings: display: bridge: Add MHDP DP for i.MX8MQ
  drm: bridge: cadence: Add MHDP DP driver for i.MX8MQ
  phy: Add HDMI configuration options
  dt-bindings: display: bridge: Add MHDP HDMI for i.MX8MQ
  drm: bridge: cadence: Add MHDP HDMI driver for i.MX8MQ
  dt-bindings: phy: Add Cadence HDP-TX DP PHY
  phy: cadence: Add driver for HDP-TX DisplyPort PHY
  dt-bindings: phy: Add Cadence HDP-TX HDMI PHY
  phy: cadence: Add driver for HDP-TX HDMI PHY

 .../display/bridge/cdns,mhdp-imx8mq-dp.yaml   |   93 ++
 .../display/bridge/cdns,mhdp-imx8mq-hdmi.yaml |   93 ++
 .../bindings/phy/cdns,hdptx-dp-phy.yaml       |   68 ++
 .../bindings/phy/cdns,hdptx-hdmi-phy.yaml     |   52 +
 drivers/gpu/drm/bridge/cadence/Kconfig        |   25 +
 drivers/gpu/drm/bridge/cadence/Makefile       |    3 +
 drivers/gpu/drm/bridge/cadence/cdns-dp-core.c | 1071 +++++++++++++++++
 .../gpu/drm/bridge/cadence/cdns-hdmi-core.c   | 1018 ++++++++++++++++
 .../gpu/drm/bridge/cadence/cdns-mhdp-common.h |  400 ++++++
 .../drm/bridge/cadence/cdns-mhdp8546-core.c   |  197 +--
 .../drm/bridge/cadence/cdns-mhdp8546-core.h   |    1 -
 drivers/phy/cadence/Kconfig                   |   16 +
 drivers/phy/cadence/Makefile                  |    2 +
 drivers/phy/cadence/phy-cadence-hdptx-dp.c    |  737 ++++++++++++
 drivers/phy/cadence/phy-cadence-hdptx-hdmi.c  |  891 ++++++++++++++
 include/drm/bridge/cdns-mhdp-mailbox.h        |  240 ++++
 include/linux/phy/phy-hdmi.h                  |   38 +
 include/linux/phy/phy.h                       |    7 +-
 18 files changed, 4755 insertions(+), 197 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp-imx8mq-dp.yaml
 create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp-imx8mq-hdmi.yaml
 create mode 100644 Documentation/devicetree/bindings/phy/cdns,hdptx-dp-phy.yaml
 create mode 100644 Documentation/devicetree/bindings/phy/cdns,hdptx-hdmi-phy.yaml
 create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-dp-core.c
 create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
 create mode 100644 drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.h
 create mode 100644 drivers/phy/cadence/phy-cadence-hdptx-dp.c
 create mode 100644 drivers/phy/cadence/phy-cadence-hdptx-hdmi.c
 create mode 100644 include/drm/bridge/cdns-mhdp-mailbox.h
 create mode 100644 include/linux/phy/phy-hdmi.h

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2.34.1