diff mbox series

[v3,2/4] dt-bindings: sound: add rockchip i2s-tdm binding

Message ID 20210828140205.21973-3-frattaroli.nicolas@gmail.com (mailing list archive)
State New
Headers show
Series Rockchip I2S/TDM controller | expand

Commit Message

Nicolas Frattaroli Aug. 28, 2021, 2:02 p.m. UTC
This adds the YAML bindings for the Rockchip I2S/TDM audio driver.

Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
---
 .../bindings/sound/rockchip,i2s-tdm.yaml      | 218 ++++++++++++++++++
 MAINTAINERS                                   |   1 +
 2 files changed, 219 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml

Comments

Rob Herring Aug. 31, 2021, 9:50 p.m. UTC | #1
On Sat, Aug 28, 2021 at 04:02:02PM +0200, Nicolas Frattaroli wrote:
> This adds the YAML bindings for the Rockchip I2S/TDM audio driver.
> 
> Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
> ---
>  .../bindings/sound/rockchip,i2s-tdm.yaml      | 218 ++++++++++++++++++
>  MAINTAINERS                                   |   1 +
>  2 files changed, 219 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml b/Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml
> new file mode 100644
> index 000000000000..ab8731779805
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml
> @@ -0,0 +1,218 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/rockchip,i2s-tdm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Rockchip I2S/TDM Controller
> +
> +description:
> +  The Rockchip I2S/TDM Controller is a Time Division Multiplexed
> +  audio interface found in various Rockchip SoCs, allowing up
> +  to 8 channels of audio over a serial interface.
> +
> +maintainers:
> +  - Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - rockchip,px30-i2s-tdm
> +      - rockchip,rk1808-i2s-tdm
> +      - rockchip,rk3308-i2s-tdm
> +      - rockchip,rk3568-i2s-tdm
> +      - rockchip,rv1126-i2s-tdm
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  dmas:
> +    minItems: 1
> +    maxItems: 2
> +
> +  dma-names:
> +    minItems: 1
> +    maxItems: 2
> +    items:
> +      enum:
> +        - rx
> +        - tx
> +
> +  clocks:
> +    minItems: 3
> +    items:
> +      - description: clock for TX
> +      - description: clock for RX
> +      - description: AHB clock driving the interface
> +      - description:
> +          Parent clock for mclk_tx (only required when using mclk-calibrate)
> +      - description:
> +          Parent clock for mclk_rx (only required when using mclk-calibrate)
> +      - description:
> +          Clock for sample rates that are an integer multiple of 8000
> +          (only required when using mclk-calibrate)
> +      - description:
> +          Clock for sample rates that are an integer multiple of 11025
> +          (only required when using mclk-calibrate)
> +
> +  clock-names:
> +    minItems: 3
> +    items:
> +      - const: mclk_tx
> +      - const: mclk_rx
> +      - const: hclk
> +      - const: mclk_tx_src
> +      - const: mclk_rx_src
> +      - const: mclk_root0
> +      - const: mclk_root1
> +
> +  rockchip,frame-width:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    default: 64
> +    minimum: 32
> +    maximum: 512
> +    description:
> +      Width of a frame, usually slot width multiplied by number of slots.
> +      Must be even.
> +
> +  resets:
> +    items:
> +      - description: reset for TX
> +      - description: reset for RX
> +
> +  reset-names:
> +    items:
> +      - const: tx-m
> +      - const: rx-m
> +
> +  rockchip,cru:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      The phandle of the cru.
> +      Required if neither trcm-sync-tx-only nor trcm-sync-rx-only are specified.
> +
> +  rockchip,grf:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      The phandle of the syscon node for the GRF register.
> +
> +  rockchip,mclk-calibrate:
> +    description:
> +      Switch between two root clocks depending on the audio sample rate.
> +      For integer multiples of 8000 (e.g. 48000 Hz), mclk_root0 is used.
> +      For integer multiples of 11025 (e.g. 44100 Hz), mclk_root1 is used.
> +    type: boolean
> +
> +  rockchip,trcm-sync-tx-only:
> +    type: boolean
> +    description: Use TX BCLK/LRCK for both TX and RX.
> +
> +  rockchip,trcm-sync-rx-only:
> +    type: boolean
> +    description: Use RX BCLK/LRCK for both TX and RX.
> +
> +  "#sound-dai-cells":
> +    const: 0
> +
> +  rockchip,i2s-rx-route:
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    description:
> +      Defines the mapping of I2S RX sdis to I2S data bus lines.
> +      By default, they are mapped one-to-one.
> +    items:
> +      - description: which sdi to connect to data line 0
> +      - description: which sdi to connect to data line 1
> +      - description: which sdi to connect to data line 2
> +      - description: which sdi to connect to data line 3

This would be better expressed as:

maxItems: 4
items:
  enum: [ 0, 1, 2, 3 ]

(I'm guessing on the allowed values here)

> +
> +  rockchip,i2s-tx-route:
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    description:
> +      Defines the mapping of I2S TX sdos to I2S data bus lines.
> +      By default, they are mapped one-to-one.
> +    items:
> +      - description: which sdo to connect to data line 0
> +      - description: which sdo to connect to data line 1
> +      - description: which sdo to connect to data line 2
> +      - description: which sdo to connect to data line 3

Same here.

> +
> +  rockchip,tdm-fsync-half-frame:
> +    description: Whether to use half frame fsync.
> +    type: boolean
> +
> +  rockchip,io-multiplex:
> +    description:
> +      Specify that the GPIO lines on the I2S bus are multiplexed such that
> +      the direction (input/output) needs to be dynamically adjusted.
> +    type: boolean
> +
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - dmas
> +  - dma-names
> +  - clocks
> +  - clock-names
> +  - resets
> +  - reset-names
> +  - rockchip,grf
> +  - "#sound-dai-cells"
> +
> +allOf:
> +  - if:
> +      properties:
> +        rockchip,trcm-sync-tx-only: false
> +        rockchip,trcm-sync-rx-only: false
> +    then:
> +      required:
> +        - rockchip,cru
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/rk3568-cru.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/pinctrl/rockchip.h>
> +
> +    foo {

bus {

> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +        i2s@fe410000 {
> +            compatible = "rockchip,rk3568-i2s-tdm";
> +            reg = <0x0 0xfe410000 0x0 0x1000>;
> +            interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cru MCLK_I2S1_8CH_TX>, <&cru MCLK_I2S1_8CH_RX>,
> +                     <&cru HCLK_I2S1_8CH>;
> +            clock-names = "mclk_tx", "mclk_rx", "hclk";
> +            dmas = <&dmac1 3>, <&dmac1 2>;
> +            dma-names = "rx", "tx";
> +            resets = <&cru SRST_M_I2S1_8CH_TX>, <&cru SRST_M_I2S1_8CH_RX>;
> +            reset-names = "tx-m", "rx-m";
> +            rockchip,trcm-sync-tx-only;
> +            rockchip,cru = <&cru>;
> +            rockchip,grf = <&grf>;
> +            #sound-dai-cells = <0>;
> +            pinctrl-names = "default";
> +            pinctrl-0 =
> +                <&i2s1m0_sclktx
> +                &i2s1m0_sclkrx
> +                &i2s1m0_lrcktx
> +                &i2s1m0_lrckrx
> +                &i2s1m0_sdi0
> +                &i2s1m0_sdi1
> +                &i2s1m0_sdi2
> +                &i2s1m0_sdi3
> +                &i2s1m0_sdo0
> +                &i2s1m0_sdo1
> +                &i2s1m0_sdo2
> +                &i2s1m0_sdo3>;
> +            status = "okay";

Still needs to be dropped.

> +        };
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 5d459d42672c..d2be16a85009 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -16053,6 +16053,7 @@ ROCKCHIP I2S TDM DRIVER
>  M:	Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
>  L:	linux-rockchip@lists.infradead.org
>  S:	Maintained
> +F:	Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml
>  F:	sound/soc/rockchip/rockchip_i2s_tdm.*
>  
>  ROCKCHIP ISP V1 DRIVER
> -- 
> 2.33.0
> 
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml b/Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml
new file mode 100644
index 000000000000..ab8731779805
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml
@@ -0,0 +1,218 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/rockchip,i2s-tdm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip I2S/TDM Controller
+
+description:
+  The Rockchip I2S/TDM Controller is a Time Division Multiplexed
+  audio interface found in various Rockchip SoCs, allowing up
+  to 8 channels of audio over a serial interface.
+
+maintainers:
+  - Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
+
+properties:
+  compatible:
+    enum:
+      - rockchip,px30-i2s-tdm
+      - rockchip,rk1808-i2s-tdm
+      - rockchip,rk3308-i2s-tdm
+      - rockchip,rk3568-i2s-tdm
+      - rockchip,rv1126-i2s-tdm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  dmas:
+    minItems: 1
+    maxItems: 2
+
+  dma-names:
+    minItems: 1
+    maxItems: 2
+    items:
+      enum:
+        - rx
+        - tx
+
+  clocks:
+    minItems: 3
+    items:
+      - description: clock for TX
+      - description: clock for RX
+      - description: AHB clock driving the interface
+      - description:
+          Parent clock for mclk_tx (only required when using mclk-calibrate)
+      - description:
+          Parent clock for mclk_rx (only required when using mclk-calibrate)
+      - description:
+          Clock for sample rates that are an integer multiple of 8000
+          (only required when using mclk-calibrate)
+      - description:
+          Clock for sample rates that are an integer multiple of 11025
+          (only required when using mclk-calibrate)
+
+  clock-names:
+    minItems: 3
+    items:
+      - const: mclk_tx
+      - const: mclk_rx
+      - const: hclk
+      - const: mclk_tx_src
+      - const: mclk_rx_src
+      - const: mclk_root0
+      - const: mclk_root1
+
+  rockchip,frame-width:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 64
+    minimum: 32
+    maximum: 512
+    description:
+      Width of a frame, usually slot width multiplied by number of slots.
+      Must be even.
+
+  resets:
+    items:
+      - description: reset for TX
+      - description: reset for RX
+
+  reset-names:
+    items:
+      - const: tx-m
+      - const: rx-m
+
+  rockchip,cru:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The phandle of the cru.
+      Required if neither trcm-sync-tx-only nor trcm-sync-rx-only are specified.
+
+  rockchip,grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The phandle of the syscon node for the GRF register.
+
+  rockchip,mclk-calibrate:
+    description:
+      Switch between two root clocks depending on the audio sample rate.
+      For integer multiples of 8000 (e.g. 48000 Hz), mclk_root0 is used.
+      For integer multiples of 11025 (e.g. 44100 Hz), mclk_root1 is used.
+    type: boolean
+
+  rockchip,trcm-sync-tx-only:
+    type: boolean
+    description: Use TX BCLK/LRCK for both TX and RX.
+
+  rockchip,trcm-sync-rx-only:
+    type: boolean
+    description: Use RX BCLK/LRCK for both TX and RX.
+
+  "#sound-dai-cells":
+    const: 0
+
+  rockchip,i2s-rx-route:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description:
+      Defines the mapping of I2S RX sdis to I2S data bus lines.
+      By default, they are mapped one-to-one.
+    items:
+      - description: which sdi to connect to data line 0
+      - description: which sdi to connect to data line 1
+      - description: which sdi to connect to data line 2
+      - description: which sdi to connect to data line 3
+
+  rockchip,i2s-tx-route:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description:
+      Defines the mapping of I2S TX sdos to I2S data bus lines.
+      By default, they are mapped one-to-one.
+    items:
+      - description: which sdo to connect to data line 0
+      - description: which sdo to connect to data line 1
+      - description: which sdo to connect to data line 2
+      - description: which sdo to connect to data line 3
+
+  rockchip,tdm-fsync-half-frame:
+    description: Whether to use half frame fsync.
+    type: boolean
+
+  rockchip,io-multiplex:
+    description:
+      Specify that the GPIO lines on the I2S bus are multiplexed such that
+      the direction (input/output) needs to be dynamically adjusted.
+    type: boolean
+
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - dmas
+  - dma-names
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - rockchip,grf
+  - "#sound-dai-cells"
+
+allOf:
+  - if:
+      properties:
+        rockchip,trcm-sync-tx-only: false
+        rockchip,trcm-sync-rx-only: false
+    then:
+      required:
+        - rockchip,cru
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3568-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/pinctrl/rockchip.h>
+
+    foo {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        i2s@fe410000 {
+            compatible = "rockchip,rk3568-i2s-tdm";
+            reg = <0x0 0xfe410000 0x0 0x1000>;
+            interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cru MCLK_I2S1_8CH_TX>, <&cru MCLK_I2S1_8CH_RX>,
+                     <&cru HCLK_I2S1_8CH>;
+            clock-names = "mclk_tx", "mclk_rx", "hclk";
+            dmas = <&dmac1 3>, <&dmac1 2>;
+            dma-names = "rx", "tx";
+            resets = <&cru SRST_M_I2S1_8CH_TX>, <&cru SRST_M_I2S1_8CH_RX>;
+            reset-names = "tx-m", "rx-m";
+            rockchip,trcm-sync-tx-only;
+            rockchip,cru = <&cru>;
+            rockchip,grf = <&grf>;
+            #sound-dai-cells = <0>;
+            pinctrl-names = "default";
+            pinctrl-0 =
+                <&i2s1m0_sclktx
+                &i2s1m0_sclkrx
+                &i2s1m0_lrcktx
+                &i2s1m0_lrckrx
+                &i2s1m0_sdi0
+                &i2s1m0_sdi1
+                &i2s1m0_sdi2
+                &i2s1m0_sdi3
+                &i2s1m0_sdo0
+                &i2s1m0_sdo1
+                &i2s1m0_sdo2
+                &i2s1m0_sdo3>;
+            status = "okay";
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 5d459d42672c..d2be16a85009 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16053,6 +16053,7 @@  ROCKCHIP I2S TDM DRIVER
 M:	Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
 L:	linux-rockchip@lists.infradead.org
 S:	Maintained
+F:	Documentation/devicetree/bindings/sound/rockchip,i2s-tdm.yaml
 F:	sound/soc/rockchip/rockchip_i2s_tdm.*
 
 ROCKCHIP ISP V1 DRIVER