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authorBoris Brezillon <boris.brezillon@free-electrons.com>2017-02-27 21:28:01 +0100
committerEric Anholt <eric@anholt.net>2017-03-16 18:33:30 +0100
commit199a76946d4303ce047e6ac9a49eefa0105f6e78 (patch)
tree0cad21b0a83e5a995486ce2f5c791f091afd5e5b /Documentation
parentdrm/atmel-hlcdc: Fix suspend/resume implementation (diff)
downloadlinux-199a76946d4303ce047e6ac9a49eefa0105f6e78.tar.xz
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dt-bindings: Document the dmas and dma-names properties for VC4 HDMI
These are optional, but necessary for HDMI audio support. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Rob Herring <robh@kernel.org> Link: http://patchwork.freedesktop.org/patch/msgid/20170227202803.12855-1-eric@anholt.net
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt b/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
index 34c7fddcea39..ca02d3e4db91 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
+++ b/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
@@ -34,6 +34,9 @@ Optional properties for HDMI:
- hpd-gpios: The GPIO pin for HDMI hotplug detect (if it doesn't appear
as an interrupt/status bit in the HDMI controller
itself). See bindings/pinctrl/brcm,bcm2835-gpio.txt
+- dmas: Should contain one entry pointing to the DMA channel used to
+ transfer audio data
+- dma-names: Should contain "audio-rx"
Required properties for DPI:
- compatible: Should be "brcm,bcm2835-dpi"