Hi,
Here is an preliminary version of the MIPI-DSI support for the Allwinner SoCs.
This controller can be found on a number of recent SoCs, such as the A31, A33 or the A64.
Given the sparse documentation, there's a number of obscure areas, but the current implementation has been tested with a 4-lanes DSI panel on an A33.
The support is a bit rough around the edges at the time, and some artifacts are still shown on the screen for some reasons. Wider testing with different display will hopefully nail those down.
Let me know what you think, Maxime
Changes from v1: - Rebased on 4.16-rc1 - Constified a few function arguments and structures - Reworked the DT binding example a bit - Reworked the panel driver to check for DSI return codes, and use DCS helpers when possible
Maxime Ripard (10): regmap: mmio: Add function to attach a clock drm/sun4i: tcon: Add TRI finish interrupt for vblank drm/sun4i: Protect the TCON pixel clocks dt-bindings: display: Add Allwinner MIPI-DSI bindings drm/sun4i: Add Allwinner A31 MIPI-DSI controller support dt-bindings: vendor: Add Huarui Lighting dt-bindings: panel: Add Huarui LHR050H41 panel documentation drm/panel: Add Huarui LHR050H41 panel driver arm: dts: sun8i: a33: Add the DSI-related nodes [DO NOT MERGE] arm: dts: sun8i: bpi-m2m: Add DSI display
Documentation/devicetree/bindings/display/panel/huarui,lhr050h41.txt | 19 +- Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt | 84 +++++- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +- arch/arm/boot/dts/sun8i-a33.dtsi | 35 ++- arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts | 39 +++- drivers/base/regmap/regmap-mmio.c | 24 ++- drivers/gpu/drm/panel/Kconfig | 9 +- drivers/gpu/drm/panel/Makefile | 1 +- drivers/gpu/drm/panel/panel-huarui-lhr050h41.c | 506 +++++++++++++++++++++++++++++++++- drivers/gpu/drm/sun4i/Kconfig | 10 +- drivers/gpu/drm/sun4i/Makefile | 4 +- drivers/gpu/drm/sun4i/sun4i_tcon.c | 115 ++++++- drivers/gpu/drm/sun4i/sun4i_tcon.h | 46 +++- drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c | 297 +++++++++++++++++++- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 1111 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h | 67 ++++- include/linux/regmap.h | 3 +- 17 files changed, 2366 insertions(+), 5 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/panel/huarui,lhr050h41.txt create mode 100644 Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt create mode 100644 drivers/gpu/drm/panel/panel-huarui-lhr050h41.c create mode 100644 drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c create mode 100644 drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c create mode 100644 drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
base-commit: 91ab883eb21325ad80f3473633f794c78ac87f51