[PATCH v2 00/18] drm/sun4i: Add A83t LVDS support

Maxime Ripard
2017-11-27T15:41:24Z

Hi,

Here is an attempt at supporting the LVDS output in our DRM driver. This
has been tested on the A83T (with DE2), but since everything is basically
in the TCON, it should also be usable on the older SoCs with minor
modifications.

This was the occasion to refactor a bunch of things. The most notable ones
would be the documentation, and split of the UI layers in the mixer code,
and the switch to kfifo for our endpoint parsing code in the driver that
fixes an issue introduced by the switch to BFS.

Let me know what you think,
Maxime

Changes from v1:
- Added a fix for the error path handling in the TCON
- Enable the TCON by default
- Removed the patch that changes the channels offset but kept most of the
modifications as a cleanup
- Deal with the LVDS clock being able to have another PLL parent on some
SoCs
- Renamed the TCON compatible to TCON-TV, following the convention used
on newer SoCs
- Removed the hardcoded timings
- Moved LVDS enable quirks to a separate function
- Used clock indices define in the DT
- Removed the hardcoded clock rate in the DT and moved it to the driver
- Changed sun8i_mixer_planes to sun8i_mixer_ui_planes to be consistent
- Added the various tags collected
- Rebased on top of 4.15

Maxime Ripard (18):
dt-bindings: panel: lvds: Document power-supply property
drm/panel: lvds: Add support for the power-supply property
dt-bindings: display: sun4i-drm: Add LVDS properties
drm/sun4i: Fix error path handling
drm/sun4i: Force the mixer rate at 150MHz
drm/sun4i: Rename layers to UI planes
drm/sun4i: sun8i: Rework the UI channels code
drm/sun4i: Reorder and document DE2 mixer registers
drm/sun4i: Create minimal multipliers and dividers
drm/sun4i: Add LVDS support
drm/sun4i: Add A83T support
drm/sun4i: Add A83T support
ARM: dts: sun8i: a83t: Add display pipeline
ARM: dts: sun8i: a83t: Enable the PWM
ARM: dts: sun8i: a83t: Add LVDS pins group
ARM: dts: sun8i: a83t: Add the PWM pin group
ARM: dts: sun8i: a711: Reinstate the PMIC compatible
ARM: dts: sun8i: a711: Enable the LCD

Documentation/devicetree/bindings/display/panel/panel-common.txt | 6 ++-
Documentation/devicetree/bindings/display/panel/panel-lvds.txt | 1 +-
Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt | 11 +++-
arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 62 ++++++++++++++++++-
arch/arm/boot/dts/sun8i-a83t.dtsi | 99 +++++++++++++++++++++++++++++-
drivers/gpu/drm/panel/panel-lvds.c | 23 +++++++-
drivers/gpu/drm/sun4i/Makefile | 3 +-
drivers/gpu/drm/sun4i/sun4i_dotclock.c | 10 ++-
drivers/gpu/drm/sun4i/sun4i_drv.c | 2 +-
drivers/gpu/drm/sun4i/sun4i_lvds.c | 183 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
drivers/gpu/drm/sun4i/sun4i_lvds.h | 18 +++++-
drivers/gpu/drm/sun4i/sun4i_tcon.c | 247 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
drivers/gpu/drm/sun4i/sun4i_tcon.h | 31 +++++++++-
drivers/gpu/drm/sun4i/sun8i_layer.c | 134 +---------------------------------------
drivers/gpu/drm/sun4i/sun8i_layer.h | 36 +----------
drivers/gpu/drm/sun4i/sun8i_mixer.c | 86 ++++++++++++++-----------
drivers/gpu/drm/sun4i/sun8i_mixer.h | 101 ++++++++++++++++-------------
drivers/gpu/drm/sun4i/sun8i_ui.c | 136 ++++++++++++++++++++++++++++++++++++++++-
drivers/gpu/drm/sun4i/sun8i_ui.h | 37 +++++++++++-
19 files changed, 968 insertions(+), 258 deletions(-)
create mode 100644 drivers/gpu/drm/sun4i/sun4i_lvds.c
create mode 100644 drivers/gpu/drm/sun4i/sun4i_lvds.h
delete mode 100644 drivers/gpu/drm/sun4i/sun8i_layer.c
delete mode 100644 drivers/gpu/drm/sun4i/sun8i_layer.h
create mode 100644 drivers/gpu/drm/sun4i/sun8i_ui.c
create mode 100644 drivers/gpu/drm/sun4i/sun8i_ui.h

base-commit: 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323
--
git-series 0.9.1