Hi everyone,
This series adds basic support for the display pipelines found on the Allwinner A80 SoC. Currently only parallel RGB output via TCON0 is supported. TCON1 drives the HDMI encoder, which I've not been able to get working yet.
Patch 1 adds device tree bindings for the TCONs on the A80. In particular, TCON0 requires the eDP reset control in addition to its own.
Patch 2 adds a device tree binding for the Detail Enhancement Unit found only on the A80.
Patch 3 adds driver support for the TCONs.
Patch 4 adds compatible strings to the device tree bindings for all the remaining peripherals covered by this series.
Patch 5 adds support for the compatible strings from the previous patch to the sun4i-drm driver.
Patch 6 adds the display pipeline device nodes to the A80 .dtsi file.
Patch 7 adds a pinmux setting for RGB888 output for TCON0.
Patch 8 enables VGA output on the Cubieboard4 via an external DAC and an I2C bus from the SoC for DDC.
I've had these patches for quite some time now, rebasing them as more features were added to sun4i-drm. Please have a look.
Regards ChenYu
Chen-Yu Tsai (8): drm/sun4i: Add compatible strings for A80 TCONs drm/sun4i: Add DT binding for Detail Enhancement Unit in Allwinner A80 SoC drm/sun4i: Add support for A80 TCONs drm/sun4i: Add compatible strings for the A80 display pipeline drm/sun4i: Add driver support for A80 display pipeline ARM: dts: sun9i: Add device nodes for documented display pipelines for A80 ARM: dts: sun9i: Add pinmux settings for LCD0 RGB888 output. ARM: dts: sun9i: cubieboard4: Enable VGA display output
.../bindings/display/sunxi/sun4i-drm.txt | 39 +- arch/arm/boot/dts/sun9i-a80-cubieboard4.dts | 68 ++++ arch/arm/boot/dts/sun9i-a80.dtsi | 392 +++++++++++++++++++++ drivers/gpu/drm/sun4i/sun4i_backend.c | 7 + drivers/gpu/drm/sun4i/sun4i_drv.c | 12 +- drivers/gpu/drm/sun4i/sun4i_tcon.c | 27 ++ drivers/gpu/drm/sun4i/sun4i_tcon.h | 1 + drivers/gpu/drm/sun4i/sun6i_drc.c | 1 + 8 files changed, 541 insertions(+), 6 deletions(-)