From: Chen-Yu Tsai <wenst@chromium.org>
Date: Thu, 12 Jun 2025 07:48:55 +0000 (+0800)
Subject: ASoC: dt-bindings: mt8186-afe-pcm: Allow specifying reserved memory region
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81c73294a4eb2df31e974db2fc4397f5e0ecae09;p=thirdparty%2Fkernel%2Flinux.git

ASoC: dt-bindings: mt8186-afe-pcm: Allow specifying reserved memory region

It is desirable to reserve memory for the audio frontend.

Allow the "memory-region" property, to be used to point to a reserved
memory region.

Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://patch.msgid.link/20250612074901.4023253-5-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml
index 7fe85b08f9dfa..f5af2cf18158b 100644
--- a/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml
+++ b/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml
@@ -25,6 +25,10 @@ properties:
   reset-names:
     const: audiosys
 
+  memory-region:
+    description: memory region for audio DMA buffers
+    maxItems: 1
+
   mediatek,apmixedsys:
     $ref: /schemas/types.yaml#/definitions/phandle
     description: The phandle of the mediatek apmixedsys controller
@@ -170,6 +174,7 @@ examples:
                       "top_apll12_div_tdm",
                       "top_mux_audio_h",
                       "top_clk26m_clk";
+        memory-region = <&afe_dma_mem>;
     };
 
 ...