diff mbox series

[v6,1/3] dt-bindings: i2c: Add Maxim MAX735x/MAX736x variants

Message ID 20220216074613.235725-2-patrick.rudolph@9elements.com
State Superseded
Headers show
Series Add support for Maxim MAX735x/MAX736x variants | expand

Commit Message

Patrick Rudolph Feb. 16, 2022, 7:46 a.m. UTC 
Update the pca954x bindings to add support for the Maxim MAX735x/MAX736x
chips. The functionality will be provided by the exisintg pca954x driver.

While on it make the interrupts support conditionally as not all of the
existing chips have interrupts.

For chips that are powered off by default add an optional regulator
called vdd-supply.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
---
 .../bindings/i2c/i2c-mux-pca954x.yaml         | 44 ++++++++++++++-----
 1 file changed, 34 insertions(+), 10 deletions(-)

Comments

Rob Herring (Arm) Feb. 16, 2022, 11:43 p.m. UTC | #1 
On Wed, 16 Feb 2022 08:46:10 +0100, Patrick Rudolph wrote:
> Update the pca954x bindings to add support for the Maxim MAX735x/MAX736x
> chips. The functionality will be provided by the exisintg pca954x driver.
> 
> While on it make the interrupts support conditionally as not all of the
> existing chips have interrupts.
> 
> For chips that are powered off by default add an optional regulator
> called vdd-supply.
> 
> Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
> ---
>  .../bindings/i2c/i2c-mux-pca954x.yaml         | 44 ++++++++++++++-----
>  1 file changed, 34 insertions(+), 10 deletions(-)
> 


Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.

If a tag was not added on purpose, please state why and what changed.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
index 9f1726d0356b..132c3e54e7ab 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
@@ -4,21 +4,48 @@ 
 $id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: NXP PCA954x I2C bus switch
+title: NXP PCA954x I2C and compatible bus switches
 
 maintainers:
   - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 
 description:
-  The binding supports NXP PCA954x and PCA984x I2C mux/switch devices.
+  The binding supports NXP PCA954x and PCA984x I2C mux/switch devices,
+  and the Maxim MAX735x and MAX736x I2C mux/switch devices.
 
 allOf:
   - $ref: /schemas/i2c/i2c-mux.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - maxim,max7367
+              - maxim,max7369
+              - nxp,pca9542
+              - nxp,pca9543
+              - nxp,pca9544
+              - nxp,pca9545
+    then:
+      properties:
+        interrupts:
+          maxItems: 1
+
+        "#interrupt-cells":
+          const: 2
+
+        interrupt-controller: true
 
 properties:
   compatible:
     oneOf:
       - enum:
+          - maxim,max7356
+          - maxim,max7357
+          - maxim,max7358
+          - maxim,max7367
+          - maxim,max7368
+          - maxim,max7369
           - nxp,pca9540
           - nxp,pca9542
           - nxp,pca9543
@@ -38,14 +65,6 @@  properties:
   reg:
     maxItems: 1
 
-  interrupts:
-    maxItems: 1
-
-  "#interrupt-cells":
-    const: 2
-
-  interrupt-controller: true
-
   reset-gpios:
     maxItems: 1
 
@@ -59,6 +78,9 @@  properties:
     description: if present, overrides i2c-mux-idle-disconnect
     $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state
 
+  vdd-supply:
+    description: A voltage regulator supplying power to the chip.
+
 required:
   - compatible
   - reg
@@ -79,6 +101,8 @@  examples:
             #size-cells = <0>;
             reg = <0x74>;
 
+            vdd-supply = <&p3v3>;
+
             interrupt-parent = <&ipic>;
             interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
             interrupt-controller;