[d-kernel] [PATCH 22/32] dt-bindings: dw-hdmi: added ahb-audio-regshift

[Alexey Sheplyakov <asheplyakov@basealt.ru>]

Hardware revision 0x2a needs a register offset. It can't be
auto-detected: to figure out the hardware revision one need
to read HDMI_REVISION_ID register, and to read a register
one need to know the registers offset shift. Hence the correct
register offset shift has to be specified in the device tree.

Signed-off-by: Alexey Sheplyakov <asheplyakov@basealt.ru>
X-feature-Baikal-M
---
 .../bindings/display/bridge/synopsys,dw-hdmi.yaml          | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
index 4b7e54a8f037..85b3ac7d1057 100644
--- a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
@@ -29,6 +29,13 @@ properties:
     enum: [1, 4]
     default: 1
 
+  ahb-audio-regshift:
+    description:
+      AHB audio registers offset shift
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 2]
+    default: 0
+
   clocks:
     minItems: 2
     maxItems: 5
-- 
2.33.5