Re: [PATCH v5 3/7] drm: sunxi: add DE2 HDMI support

This patch adds a HDMI driver to the DE2 based Allwinner's SoCs
as A83T and H3.
Audio and video are supported.

Signed-off-by: Jean-Francois Moine <redacted>
---
 .../devicetree/bindings/display/sunxi/hdmi.txt     |  52 ++
 drivers/gpu/drm/sunxi/Kconfig                      |   8 +
 drivers/gpu/drm/sunxi/Makefile                     |   2 +
 drivers/gpu/drm/sunxi/de2_hdmi.c                   | 396 +++++++++
 drivers/gpu/drm/sunxi/de2_hdmi.h                   |  40 +
 drivers/gpu/drm/sunxi/de2_hdmi_io.c                | 927 +++++++++++++++++++++
 drivers/gpu/drm/sunxi/de2_hdmi_io.h                |  25 +
 7 files changed, 1450 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/sunxi/hdmi.txt
 create mode 100644 drivers/gpu/drm/sunxi/de2_hdmi.c
 create mode 100644 drivers/gpu/drm/sunxi/de2_hdmi.h
 create mode 100644 drivers/gpu/drm/sunxi/de2_hdmi_io.c
 create mode 100644 drivers/gpu/drm/sunxi/de2_hdmi_io.h

diff --git a/Documentation/devicetree/bindings/display/sunxi/hdmi.txt b/Documentation/devicetree/bindings/display/sunxi/hdmi.txt
new file mode 100644
index 0000000..0558c07
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/sunxi/hdmi.txt

@@ -0,0 +1,52 @@
+Allwinner HDMI Transmitter
+==========================
+
+The Allwinner HDMI transmitters are included in the SoCs.
+They support audio and video.
+
+Required properties:
+ - #address-cells : should be <1>
+ - #size-cells : should be <0>
+ - compatible : should be
+		"allwinner,sun8i-a83t-hdmi" or
+		"allwinner,sun8i-h3-hdmi"
+ - clocks : phandles to the HDMI clocks as described in
+	Documentation/devicetree/bindings/clock/clock-bindings.txt
+ - clock-names : must be
+		"gate" : bus gate
+		"clock" : streaming clock
+		"ddc-clock" : DDC clock
+ - resets : One or two phandles to the HDMI resets
+ - reset-names : must be
+		"hdmi0" and "hdmi1"
+
+Required nodes:
+ - port: Audio and video input port nodes with endpoint definitions
+	as defined in Documentation/devicetree/bindings/graph.txt.