Add dt-binding for the i2s driver of SpacemiT's K1 SoC.
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
.../devicetree/bindings/sound/spacemit,k1-i2s.yaml | 88 ++++++++++++++++++++++
1 file changed, 88 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml b/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7d9110638d71792db6e5bb72559f6abaf4cb59bb
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/spacemit,k1-i2s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: K1 I2S controller
+
+description:
+ The I2S bus (Inter-IC sound bus) is a serial link for digital
+ audio data transfer between devices in the system.
+
+maintainers:
+ - Troy Mitchell <troy.mitchell@linux.spacemit.com>
+
+allOf:
+ - $ref: dai-common.yaml#
+
+properties:
+ compatible:
+ const: spacemit,k1-i2s
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: clock for I2S sysclk
+ - description: clock for I2S bclk
+ - description: clock for I2S bus
+ - description: clock for I2S controller
+
+ clock-names:
+ items:
+ - const: sysclk
+ - const: bclk
+ - const: bus
+ - const: func
+
+ dmas:
+ minItems: 1
+ maxItems: 2
+
+ dma-names:
+ oneOf:
+ - const: rx
+ - items:
+ - const: tx
+ - const: rx
+
+ resets:
+ maxItems: 1
+
+ port:
+ $ref: audio-graph-port.yaml#
+ unevaluatedProperties: false
+
+ "#sound-dai-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - dmas
+ - dma-names
+ - resets
+ - "#sound-dai-cells"
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/spacemit,k1-syscon.h>
+ i2s@d4026000 {
+ compatible = "spacemit,k1-i2s";
+ reg = <0xd4026000 0x30>;
+ clocks = <&syscon_mpmu CLK_I2S_SYSCLK>,
+ <&syscon_mpmu CLK_I2S_BCLK>,
+ <&syscon_apbc CLK_SSPA0_BUS>,
+ <&syscon_apbc CLK_SSPA0>;
+ clock-names = "sysclk", "bclk", "bus", "func";
+ dmas = <&pdma0 21 1>, <&pdma0 22 1>;
+ dma-names = "tx", "rx";
+ resets = <&syscon_apbc RESET_SSPA0>;
+ #sound-dai-cells = <0>;
+ };
--
2.50.1On Thu, Aug 14, 2025 at 04:54:19PM +0800, Troy Mitchell wrote: > Add dt-binding for the i2s driver of SpacemiT's K1 SoC. > > Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com> > --- > .../devicetree/bindings/sound/spacemit,k1-i2s.yaml | 88 ++++++++++++++++++++++ > 1 file changed, 88 insertions(+) Please run scripts/checkpatch.pl on the patches and fix reported warnings. After that, run also 'scripts/checkpatch.pl --strict' on the patches and (probably) fix more warnings. Some warnings can be ignored, especially from --strict run, but the code here looks like it needs a fix. Feel free to get in touch if the warning is not clear. Please use subject prefixes matching the subsystem. You can get them for example with 'git log --oneline -- DIRECTORY_OR_FILE' on the directory your patch is touching. For bindings, the preferred subjects are explained here: https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters Best regards, Krzysztof
On Thu, Aug 14, 2025 at 04:54:19PM +0800, Troy Mitchell wrote:
> Add dt-binding for the i2s driver of SpacemiT's K1 SoC.
>
> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
> ---
> .../devicetree/bindings/sound/spacemit,k1-i2s.yaml | 88 ++++++++++++++++++++++
> 1 file changed, 88 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml b/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..7d9110638d71792db6e5bb72559f6abaf4cb59bb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml
> @@ -0,0 +1,88 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/spacemit,k1-i2s.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: K1 I2S controller
> +
> +description:
> + The I2S bus (Inter-IC sound bus) is a serial link for digital
> + audio data transfer between devices in the system.
> +
> +maintainers:
> + - Troy Mitchell <troy.mitchell@linux.spacemit.com>
> +
> +allOf:
> + - $ref: dai-common.yaml#
> +
> +properties:
> + compatible:
> + const: spacemit,k1-i2s
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: clock for I2S sysclk
> + - description: clock for I2S bclk
> + - description: clock for I2S bus
> + - description: clock for I2S controller
> +
> + clock-names:
> + items:
> + - const: sysclk
> + - const: bclk
> + - const: bus
> + - const: func
> +
> + dmas:
> + minItems: 1
> + maxItems: 2
> +
> + dma-names:
> + oneOf:
> + - const: rx
> + - items:
> + - const: tx
> + - const: rx
> +
> + resets:
> + maxItems: 1
> +
> + port:
> + $ref: audio-graph-port.yaml#
> + unevaluatedProperties: false
> +
> + "#sound-dai-cells":
> + const: 0
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - clock-names
> + - dmas
> + - dma-names
> + - resets
> + - "#sound-dai-cells"
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/spacemit,k1-syscon.h>
> + i2s@d4026000 {
> + compatible = "spacemit,k1-i2s";
> + reg = <0xd4026000 0x30>;
> + clocks = <&syscon_mpmu CLK_I2S_SYSCLK>,
> + <&syscon_mpmu CLK_I2S_BCLK>,
> + <&syscon_apbc CLK_SSPA0_BUS>,
> + <&syscon_apbc CLK_SSPA0>;
> + clock-names = "sysclk", "bclk", "bus", "func";
> + dmas = <&pdma0 21 1>, <&pdma0 22 1>;
I'll keep to 1 cell in the next version.
> + dma-names = "tx", "rx";
> + resets = <&syscon_apbc RESET_SSPA0>;
> + #sound-dai-cells = <0>;
> + };
>
> --
> 2.50.1
>
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