[PATCH v9 0/5] Add support for DisplayPort driver on SnapDragon

From: Tanmay Shah
Date: Fri Aug 07 2020 - 03:17:37 EST

These patches add Display-Port driver on SnapDragon/msm hardware.
This series also contains device-tree bindings for msm DP driver.
It also contains Makefile and Kconfig changes to compile msm DP driver.

The block diagram of DP driver is shown below:


+-------------+
|DRM FRAMEWORK|
+------+------+
|
+----v----+
| DP DRM |
+----+----+
|
+----v----+
+------------+| DP +----------++------+
+ +---+| DISPLAY |+---+ | |
| + +-+-----+-+ | | |
| | | | | | |
| | | | | | |
| | | | | | |
v v v v v v v
+------+ +------+ +---+ +----+ +----+ +---+ +-----+
| DP | | DP | |DP | | DP | | DP | |DP | | DP |
|PARSER| | HPD | |AUX| |LINK| |CTRL| |PHY| |POWER|
+--+---+ +---+--+ +---+ +----+ +--+-+ +-+-+ +-----+
| | |
+--v---+ +v-----v+
|DEVICE| | DP |
| TREE | |CATALOG|
+------+ +---+---+
|
+---v----+
|CTRL/PHY|
| HW |
+--------+

Changes in v7:

- Modify cover letter description and fix title.
- Introduce dp-controller.yaml for common bindings across SOC
- Rename dp-sc7180.yaml to dp-controller-sc7180.yaml for SC7180 bindings
- Rename compatible string to qcom,sc7180-dp
- Add assigned-clocks and assigned-clock-parents properties in bindings
- Remove redundant code from driver
- Extend series to include HPD detection logic

Changes in v8:

- Add MDSS AHB clock in bindings
- Replace mode->vrefresh use with drm_mode_vrefresh API
- Remove redundant aux config code from parser and aux module
- Assign default max lanes if data-lanes property is not available
- Fix use-after-free during DP driver remove
- Unregister hardware clocks during driver cleanup

Changes in v9:

- Drop YAML bindings change from the series
- Use assigne-clock-parents property and remove clk_set_parent use from code
- Access register address space without name
- Fix DP register dump utility
- Disable DP clocks after vsync generated
- Avoid 64-bit modulo operation
- Drop any unused code and fix function proptotyes to avoid W=1 warnings
- Drop DRM_MSM_DP_10NM_PLL config as only 10nm PLL is available

Chandan Uddaraju (4):
dt-bindings: msm/dp: add bindings of DP/DP-PLL driver for Snapdragon
drm: add constant N value in helper file
drm/msm/dp: add displayPort driver support
drm/msm/dp: add support for DP PLL driver

Jeykumar Sankaran (1):
drm/msm/dpu: add display port support in DPU

Tanmay Shah (1):
drm/msm/dp: Add Display Port HPD feature

drivers/gpu/drm/i915/display/intel_display.c | 2 +-
drivers/gpu/drm/msm/Kconfig | 9 +
drivers/gpu/drm/msm/Makefile | 14 +
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 27 +-
.../drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 8 +
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 83 +-
drivers/gpu/drm/msm/dp/dp_aux.c | 510 +++++
drivers/gpu/drm/msm/dp/dp_aux.h | 29 +
drivers/gpu/drm/msm/dp/dp_catalog.c | 1030 ++++++++++
drivers/gpu/drm/msm/dp/dp_catalog.h | 104 +
drivers/gpu/drm/msm/dp/dp_ctrl.c | 1693 +++++++++++++++++
drivers/gpu/drm/msm/dp/dp_ctrl.h | 35 +
drivers/gpu/drm/msm/dp/dp_display.c | 1017 ++++++++++
drivers/gpu/drm/msm/dp/dp_display.h | 31 +
drivers/gpu/drm/msm/dp/dp_drm.c | 168 ++
drivers/gpu/drm/msm/dp/dp_drm.h | 18 +
drivers/gpu/drm/msm/dp/dp_hpd.c | 69 +
drivers/gpu/drm/msm/dp/dp_hpd.h | 79 +
drivers/gpu/drm/msm/dp/dp_link.c | 1214 ++++++++++++
drivers/gpu/drm/msm/dp/dp_link.h | 132 ++
drivers/gpu/drm/msm/dp/dp_panel.c | 486 +++++
drivers/gpu/drm/msm/dp/dp_panel.h | 95 +
drivers/gpu/drm/msm/dp/dp_parser.c | 269 +++
drivers/gpu/drm/msm/dp/dp_parser.h | 138 ++
drivers/gpu/drm/msm/dp/dp_pll.c | 99 +
drivers/gpu/drm/msm/dp/dp_pll.h | 61 +
drivers/gpu/drm/msm/dp/dp_pll_10nm.c | 917 +++++++++
drivers/gpu/drm/msm/dp/dp_pll_private.h | 98 +
drivers/gpu/drm/msm/dp/dp_power.c | 373 ++++
drivers/gpu/drm/msm/dp/dp_power.h | 103 +
drivers/gpu/drm/msm/dp/dp_reg.h | 517 +++++
drivers/gpu/drm/msm/msm_drv.c | 2 +
drivers/gpu/drm/msm/msm_drv.h | 59 +-
include/drm/drm_dp_helper.h | 1 +
34 files changed, 9471 insertions(+), 19 deletions(-)
create mode 100644 drivers/gpu/drm/msm/dp/dp_aux.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_aux.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_catalog.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_catalog.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_ctrl.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_ctrl.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_display.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_display.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_drm.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_drm.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_hpd.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_hpd.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_link.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_link.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_panel.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_panel.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_parser.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_parser.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_pll.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_pll.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_pll_10nm.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_pll_private.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_power.c
create mode 100644 drivers/gpu/drm/msm/dp/dp_power.h
create mode 100644 drivers/gpu/drm/msm/dp/dp_reg.h


base-commit: 418eda8f3fe292782c150266d693d55d284c0c98
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