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From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date: Tue, 12 Mar 2024 11:41:03 +0200
Subject: [PATCH 2/4] dt-bindings: display/xlnx/zynqmp-dpsub: Add audio DMAs
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References: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com>
In-Reply-To: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com>
To: Lars-Peter Clausen <lars@metafoo.de>, Jaroslav Kysela <perex@perex.cz>, 
 Takashi Iwai <tiwai@suse.com>, Liam Girdwood <lgirdwood@gmail.com>, 
 Mark Brown <broonie@kernel.org>, 
 Laurent Pinchart <laurent.pinchart@ideasonboard.com>, 
 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, 
 Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, 
 David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, 
 Rob Herring <robh+dt@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>, Michal Simek <michal.simek@amd.com>
Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, 
 dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, 
 linux-arm-kernel@lists.infradead.org, Vishal Sagar <vishal.sagar@amd.com>, 
 Anatoliy Klymenko <anatoliy.klymenko@amd.com>, 
 =?utf-8?q?P=C3=A9ter_Ujfalusi?= <peter.ujfalusi@gmail.com>, 
 Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

The DP subsystem for ZynqMP support audio via two channels, and the DP
DMA has dma-engines for those channels. For some reason the DT binding
has not specified those channels, even if the picture included in
xlnx,zynqmp-dpsub.yaml shows "2 x aud" DMAs.

Add the two audio DMAs to the binding.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
 .../devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml    | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml b/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml
index 554f9d5809d4..8a56ab923cca 100644
--- a/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml
+++ b/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml
@@ -100,12 +100,16 @@ properties:
       - description: Video layer, plane 1 (U/V or U)
       - description: Video layer, plane 2 (V)
       - description: Graphics layer
+      - description: Audio channel 0
+      - description: Audio channel 1
   dma-names:
     items:
       - const: vid0
       - const: vid1
       - const: vid2
       - const: gfx0
+      - const: aud0
+      - const: aud1
 
   phys:
     description: PHYs for the DP data lanes
@@ -194,11 +198,13 @@ examples:
         power-domains = <&pd_dp>;
         resets = <&reset ZYNQMP_RESET_DP>;
 
-        dma-names = "vid0", "vid1", "vid2", "gfx0";
+        dma-names = "vid0", "vid1", "vid2", "gfx0", "aud0", "aud1;
         dmas = <&xlnx_dpdma 0>,
                <&xlnx_dpdma 1>,
                <&xlnx_dpdma 2>,
-               <&xlnx_dpdma 3>;
+               <&xlnx_dpdma 3>,
+               <&xlnx_dpdma 4>,
+               <&xlnx_dpdma 5>;
 
         phys = <&psgtr 1 PHY_TYPE_DP 0 3>,
                <&psgtr 0 PHY_TYPE_DP 1 3>;

-- 
2.34.1