[PATCH v5 00/10] Initial support for Cadence MHDP(HDMI/DP) for i.MX8MQ

From: Sandor Yu
Date: Mon Nov 28 2022 - 02:38:00 EST


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

v4->v5:
- Drop "clk" suffix in clock name.
- Add output port property in the example of hdmi/dp.

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@xxxxxxx/

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 | 102 ++
.../display/bridge/cdns,mhdp-imx8mq-hdmi.yaml | 102 ++
.../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, 4773 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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