Add a required property "memory-region", which is used to specify memory for DMA usage. Signed-off-by: Trevor Wu <trevor.wu@xxxxxxxxxxxx> --- .../devicetree/bindings/sound/mt8195-afe-pcm.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml index dcf790b053d2..6d0975b33d15 100644 --- a/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml +++ b/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml @@ -19,6 +19,12 @@ properties: interrupts: maxItems: 1 + memory-region: + maxItems: 1 + description: | + Shared memory region for AFE memif. A "shared-dma-pool". + See ../reserved-memory/reserved-memory.txt for details. + mediatek,topckgen: $ref: "/schemas/types.yaml#/definitions/phandle" description: The phandle of the mediatek topckgen controller @@ -125,6 +131,7 @@ required: - power-domains - clocks - clock-names + - memory-region additionalProperties: false @@ -139,6 +146,7 @@ examples: interrupts = <GIC_SPI 822 IRQ_TYPE_LEVEL_HIGH 0>; mediatek,topckgen = <&topckgen>; power-domains = <&spm 7>; //MT8195_POWER_DOMAIN_AUDIO + memory-region = <&snd_dma_mem_reserved>; clocks = <&clk26m>, <&topckgen 163>, //CLK_TOP_APLL1 <&topckgen 166>, //CLK_TOP_APLL2 -- 2.18.0