[PATCH v2 00/26] drm: Add Allwinner A10 display engine support

Maxime Ripard
2016-01-14T15:24:43Z

Hi everyone,

The Allwinner SoCs (except for the very latest ones) all share the
same set of controllers, loosely coupled together to form the display
pipeline.

Depending on the SoC, the number of instances of the controller will
change (2 instances of each in the A10, only one in the A13, for
example), and the output availables will change too (HDMI, composite,
VGA on the A20, none of them on the A13).

On most featured SoCs, it looks like that:

+--------------------------------------------+
| RAM |
+--------------------------------------------+
| | | |
v | | v
+----------------+ | | +----------------+
| Frontend | | | | Frontend |
+----------------+ | | +----------------+
| | | |
v | | v
+----------------+ | | +----------------+
| Backend |<+ +>| Backend |
+----------------+ +----------------+
| |
v v
+----------------+ +----------------+---> LVDS
| TCON | | TCON |---> RGB
+----------------+ +----------------+
| +---+ +---+ |
| | | |
v v v v
+------------+ +------------+ +------------+---> VGA
| TV Encoder | | HDMI | | TV Encoder |---> Composite
+------------+ +------------+ +------------+

The current code only assumes that there is a single instance of all
the controllers. It also supports only the RGB and Composite
interfaces.

Let me know what you think,
Maxime

Changes from v1:
- Rebased on top of 4.4

- Merged the clock drivers for the display and TCON channel 0 clocks
- Replaced the container_of calls in the display reset clocks to an
inline function
- Checked the return code of of_clk_parent_fill in the clocks
drivers
- Checked the return code of of_clk_add_provider in the tcon-ch1 and
PLL3 clocks
- Added missing clocks headers
- Created a composite clock unregister function

- Moved the binding documentation to
Documentation/devicetree/bindings/display
- Added the clocks binding documentation
- Added the Olimex vendor to the list of DT vendors
- Moved to the OF graph representation and the component framework

- Moved the reset cells count check into the reset framework to
avoid duplicating the code in every xlate implementation.
- Made the reset_ops const

- Reworked the DRM cmdline mode parsing code to allow named mode
- Fixed the TV mode lookup when the mode name is not present (for
example because it was given by the userspace)

- Made the driver outputs optional (to avoid crashing when a board
doesn't have either a panel or a composite output enabled)
- Added multiple plane support with transparency
- Moved the backend registers writes commit in the CRTC atomic_flush
callback
- Removed the load / unload functions
- Removed the enabled booleans in my private structure and removed
the implicit call to disable_unused_functions in the DRM core to
push it in the drivers.
- Fixed a few bitmasks on some bitfields definition
- Fixed the RGB connector mode validation that was not testing the
right values

Matthias Brugger (1):
clk: Add regmap support

Maxime Ripard (25):
reset: Move DT cell size check to the core
reset: Make reset_control_ops const
clk: composite: Add unregister function
clk: sunxi: Add display and TCON0 clocks driver
clk: sunxi: Add PLL3 clock
clk: sunxi: Add TCON channel1 clock
clk: sun5i: add DRAM gates
ARM: sun5i: dt: Add pll3 and pll7 clocks
ARM: sun5i: a13: Add display and TCON clocks
ARM: sun5i: Add DRAM gates
ARM: sun5i: Add TV encoder gate to the DTSI
drm/fb_cma_helper: Remove implicit call to disable_unused_functions
drm/modes: Rewrite the command line parser
drm/modes: Support modes names on the command line
drm: Add Allwinner A10 Display Engine support
drm: sun4i: Add DT bindings documentation
drm: sun4i: Add RGB output
drm: sun4i: Add composite output
drm: sun4i: tv: Add PAL output standard
drm: sun4i: tv: Add NTSC output standard
ARM: sun5i: r8: Add display blocks to the DTSI
ARM: sun5i: chip: Enable the TV Encoder
devicetree: Add olimex vendor prefix
drm/panel: simple: Add timings for the Olimex LCD-OLinuXino-4.3TS
DO NOT MERGE: ARM: sun5i: chip: Enable the LCD panel

Documentation/devicetree/bindings/clock/sunxi.txt | 5 +
.../display/panel/olimex,lcd-olinuxino-43-ts.txt | 7 +
.../bindings/display/sunxi/sun4i-drm.txt | 228 +++++++
.../devicetree/bindings/vendor-prefixes.txt | 1 +
arch/arm/boot/dts/sun5i-a10s.dtsi | 7 +-
arch/arm/boot/dts/sun5i-a13.dtsi | 46 +-
arch/arm/boot/dts/sun5i-r8-chip.dts | 17 +
arch/arm/boot/dts/sun5i-r8.dtsi | 139 ++++-
arch/arm/boot/dts/sun5i.dtsi | 62 ++
drivers/clk/Makefile | 1 +
drivers/clk/clk-composite.c | 15 +
drivers/clk/clk-divider.c | 68 ++-
drivers/clk/clk-gate.c | 54 +-
drivers/clk/clk-io.c | 48 ++
drivers/clk/clk-io.h | 22 +
drivers/clk/clk-mux.c | 94 ++-
drivers/clk/sunxi/Makefile | 3 +
drivers/clk/sunxi/clk-simple-gates.c | 2 +
drivers/clk/sunxi/clk-sun4i-display.c | 241 ++++++++
drivers/clk/sunxi/clk-sun4i-pll3.c | 90 +++
drivers/clk/sunxi/clk-sun4i-tcon-ch1.c | 154 +++++
drivers/gpu/drm/Kconfig | 2 +
drivers/gpu/drm/Makefile | 3 +-
drivers/gpu/drm/drm_crtc.c | 3 +-
drivers/gpu/drm/drm_fb_cma_helper.c | 3 -
drivers/gpu/drm/drm_fb_helper.c | 4 +
drivers/gpu/drm/drm_modes.c | 327 ++++++----
drivers/gpu/drm/imx/imx-drm-core.c | 1 +
drivers/gpu/drm/panel/panel-simple.c | 26 +
drivers/gpu/drm/sti/sti_drv.c | 1 +
drivers/gpu/drm/sun4i/Kconfig | 14 +
drivers/gpu/drm/sun4i/Makefile | 12 +
drivers/gpu/drm/sun4i/sun4i_backend.c | 321 ++++++++++
drivers/gpu/drm/sun4i/sun4i_backend.h | 160 +++++
drivers/gpu/drm/sun4i/sun4i_crtc.c | 120 ++++
drivers/gpu/drm/sun4i/sun4i_crtc.h | 30 +
drivers/gpu/drm/sun4i/sun4i_drv.c | 325 ++++++++++
drivers/gpu/drm/sun4i/sun4i_drv.h | 30 +
drivers/gpu/drm/sun4i/sun4i_framebuffer.c | 54 ++
drivers/gpu/drm/sun4i/sun4i_framebuffer.h | 19 +
drivers/gpu/drm/sun4i/sun4i_layer.c | 160 +++++
drivers/gpu/drm/sun4i/sun4i_layer.h | 30 +
drivers/gpu/drm/sun4i/sun4i_rgb.c | 229 +++++++
drivers/gpu/drm/sun4i/sun4i_rgb.h | 18 +
drivers/gpu/drm/sun4i/sun4i_tcon.c | 521 ++++++++++++++++
drivers/gpu/drm/sun4i/sun4i_tcon.h | 177 ++++++
drivers/gpu/drm/sun4i/sun4i_tv.c | 675 +++++++++++++++++++++
drivers/gpu/drm/tilcdc/tilcdc_drv.c | 1 +
drivers/reset/core.c | 6 +-
include/drm/drm_modes.h | 1 +
include/linux/clk-provider.h | 55 +-
include/linux/reset-controller.h | 2 +-
52 files changed, 4455 insertions(+), 179 deletions(-)
create mode 100644 Documentation/devicetree/bindings/display/panel/olimex,lcd-olinuxino-43-ts.txt
create mode 100644 Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
create mode 100644 drivers/clk/clk-io.c
create mode 100644 drivers/clk/clk-io.h
create mode 100644 drivers/clk/sunxi/clk-sun4i-display.c
create mode 100644 drivers/clk/sunxi/clk-sun4i-pll3.c
create mode 100644 drivers/clk/sunxi/clk-sun4i-tcon-ch1.c
create mode 100644 drivers/gpu/drm/sun4i/Kconfig
create mode 100644 drivers/gpu/drm/sun4i/Makefile
create mode 100644 drivers/gpu/drm/sun4i/sun4i_backend.c
create mode 100644 drivers/gpu/drm/sun4i/sun4i_backend.h
create mode 100644 drivers/gpu/drm/sun4i/sun4i_crtc.c
create mode 100644 drivers/gpu/drm/sun4i/sun4i_crtc.h
create mode 100644 drivers/gpu/drm/sun4i/sun4i_drv.c
create mode 100644 drivers/gpu/drm/sun4i/sun4i_drv.h
create mode 100644 drivers/gpu/drm/sun4i/sun4i_framebuffer.c
create mode 100644 drivers/gpu/drm/sun4i/sun4i_framebuffer.h
create mode 100644 drivers/gpu/drm/sun4i/sun4i_layer.c
create mode 100644 drivers/gpu/drm/sun4i/sun4i_layer.h
create mode 100644 drivers/gpu/drm/sun4i/sun4i_rgb.c
create mode 100644 drivers/gpu/drm/sun4i/sun4i_rgb.h
create mode 100644 drivers/gpu/drm/sun4i/sun4i_tcon.c
create mode 100644 drivers/gpu/drm/sun4i/sun4i_tcon.h
create mode 100644 drivers/gpu/drm/sun4i/sun4i_tv.c

--
2.6.4