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

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Date:   Tue,  6 Apr 2021 19:33:03 +0800
From:   Clark Wang <xiaoning.wang@....com>
To:     aisheng.dong@....com, robh+dt@...nel.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, festevam@...il.com
Cc:     kernel@...gutronix.de, linux-imx@....com,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH V2 15/18] dt-bindings: i2c: imx-lpi2c: Add dma configuration example

Add i2c bus dma mode configuration example.

Signed-off-by: Clark Wang <xiaoning.wang@....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" ]
+
 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