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Wed, 23 Oct 2024 03:59:36 -0400 (EDT) From: Ryan Walklin To: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Chris Morgan , Philippe Simons Cc: linux-sound@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, Ryan Walklin Subject: [PATCH v3 2/7] dt-bindings: allwinner: add H616 sun4i audio codec binding Date: Wed, 23 Oct 2024 20:56:58 +1300 Message-ID: <20241023075917.186835-3-ryan@testtoast.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241023075917.186835-1-ryan@testtoast.com> References: <20241023075917.186835-1-ryan@testtoast.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The H616 has an audio codec compatible with the sun4i-a10 driver. The codec is relatively cut down compared to some of the other Allwinner SoCs and only has a single line-out route (relying on a separate digital microphone IP block for input). HDMI and SPDIF audio are handled separately by an audio hub IP block, which is not currently implemented in mainline kernels. This requires some additional flexibility in the DMA bindings. Add compatible string and routing for the H616 audio codec, and update the required DMA descriptions. Signed-off-by: Ryan Walklin Reviewed-by: Krzysztof Kozlowski --- Changelog v1..v2: - Remove PLL_AUDIO_4X clock from definition (defined internally but not used by driver and so not required in DTSI) - Restrict TX-only DMA definition to H616 Changelog v2..v3: - Fix missing - in H616 conditional binding reported by dt_binding_check. --- .../sound/allwinner,sun4i-a10-codec.yaml | 53 ++++++++++++++++--- 1 file changed, 47 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml index 78273647f7665..ebc9097f936ad 100644 --- a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml +++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml @@ -22,6 +22,7 @@ properties: - allwinner,sun8i-a23-codec - allwinner,sun8i-h3-codec - allwinner,sun8i-v3s-codec + - allwinner,sun50i-h616-codec reg: maxItems: 1 @@ -40,14 +41,20 @@ properties: - const: codec dmas: - items: - - description: RX DMA Channel - - description: TX DMA Channel + oneOf: + - items: + - description: RX DMA Channel + - description: TX DMA Channel + - items: + - description: TX DMA Channel dma-names: - items: - - const: rx - - const: tx + oneOf: + - items: + - const: rx + - const: tx + - items: + - const: tx resets: maxItems: 1 @@ -229,6 +236,40 @@ allOf: - Mic - Speaker + - if: + properties: + compatible: + enum: + - allwinner,sun50i-h616-codec + + then: + properties: + allwinner,audio-routing: + items: + enum: + - LINEOUT + - Line Out + + dmas: + items: + - description: TX DMA Channel + + dma-names: + items: + - const: tx + + else: + properties: + dmas: + items: + - description: RX DMA Channel + - description: TX DMA Channel + + dma-names: + items: + - const: rx + - const: tx + unevaluatedProperties: false examples: