[V2,15/18] dt-bindings: i2c: imx-lpi2c: Add dma configuration example

Message ID 20210406113306.2633595-16-xiaoning.wang@nxp.com
State New
Headers show
Series
  • i2c: imx-lpi2c: New features and bug fixes
Related show

Commit Message

Clark Wang April 6, 2021, 11:33 a.m.
Add i2c bus dma mode configuration example.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
---
V2 changes:
 - New patch added in V2
---
 .../devicetree/bindings/i2c/i2c-imx-lpi2c.yaml       | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Comments

Rob Herring April 9, 2021, 4:33 p.m. | #1
On Tue, Apr 06, 2021 at 07:33:03PM +0800, Clark Wang wrote:
> Add i2c bus dma mode configuration example.

> 

> Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>

> ---

> V2 changes:

>  - New patch added in V2

> ---

>  .../devicetree/bindings/i2c/i2c-imx-lpi2c.yaml       | 12 ++++++++++++

>  1 file changed, 12 insertions(+)

> 

> diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml

> index 0a4b28827dcc..3868fec0cf27 100644

> --- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml

> +++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml

> @@ -51,6 +51,16 @@ properties:

>    sda-gpios:

>      maxItems: 1

>  

> +  dmas:

> +    minItems: 2

> +    maxItems: 2

> +

> +  dma-names:

> +    minItems: 2

> +    maxItems: 2

> +    items:

> +      enum: [ "tx", "rx" ]


Please define the order:

items:
  - const: tx
  - const: rx

> +

>  required:

>    - compatible

>    - reg

> @@ -75,4 +85,6 @@ examples:

>          pinctrl-1 = <&pinctrl_i2c_recovery>;

>          scl-gpios = <&gpio5 14 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;

>          sda-gpios = <&gpio5 15 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;

> +        dmas = <&edma1 0 16>, <&edma1 0 15>;

> +        dma-names = "tx","rx";

>      };

> -- 

> 2.25.1

>

Patch

diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
index 0a4b28827dcc..3868fec0cf27 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
@@ -51,6 +51,16 @@  properties:
   sda-gpios:
     maxItems: 1
 
+  dmas:
+    minItems: 2
+    maxItems: 2
+
+  dma-names:
+    minItems: 2
+    maxItems: 2
+    items:
+      enum: [ "tx", "rx" ]
+
 required:
   - compatible
   - reg
@@ -75,4 +85,6 @@  examples:
         pinctrl-1 = <&pinctrl_i2c_recovery>;
         scl-gpios = <&gpio5 14 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
         sda-gpios = <&gpio5 15 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+        dmas = <&edma1 0 16>, <&edma1 0 15>;
+        dma-names = "tx","rx";
     };