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drm/sun4i: Add Allwinner A31 MIPI-DSI controller support

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Most of the Allwinner SoCs since the A31 share the same MIPI-DSI
controller.

While that controller is mostly undocumented, the code is out there and has
been cleaned up in order to be integrated into DRM. However, there's still
some dark areas that are a bit unclear about how the block exactly
operates.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ad9e6224fced87c0889ddd2765d1942610061f72.1522835818.git-series.maxime.ripard@bootlin.com
This commit is contained in:
Maxime Ripard
2018-04-04 11:57:11 +02:00
parent 7605225004
commit 133add5b5a
5 changed files with 1476 additions and 0 deletions
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10
drivers/gpu/drm/sun4i/Kconfig
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@@ -40,6 +40,16 @@ config DRM_SUN4I_BACKEND
do some alpha blending and feed graphics to TCON. If M is
selected the module will be called sun4i-backend.
config DRM_SUN6I_DSI
tristate "Allwinner A31 MIPI-DSI Controller Support"
default MACH_SUN8I
select CRC_CCITT
select DRM_MIPI_DSI
help
Choose this option if you want have an Allwinner SoC with
MIPI-DSI support. If M is selected the module will be called
sun6i-dsi
config DRM_SUN8I_DW_HDMI
tristate "Support for Allwinner version of DesignWare HDMI"
depends on DRM_SUN4I