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[v2,0/4] Add support for Maxim MAX735x/MAX736x variants

Message ID 20220108185759.2086347-1-patrick.rudolph@9elements.com
Headers show
Series Add support for Maxim MAX735x/MAX736x variants | expand

Message

Patrick Rudolph Jan. 8, 2022, 6:57 p.m. UTC 
v2:
- Move dt-bindings to separate file
- Added support for MAX736x as they are very similar
- Fixed an issue found by kernel test robot
- Dropped max735x property and custom IRQ check
- Added MAX7357 config register defines instead of magic values
- Renamed vcc-supply to vdd-supply

Patrick Rudolph (4):
  dt-bindings: i2c: Add Maxim MAX735x/MAX736x variants
  i2c: muxes: pca954x: Add MAX735x/MAX736x support
  dt-bindings: i2c: Add regulator to pca954x and max735x
  i2c: muxes: pca954x: Add regulator support

 .../bindings/i2c/i2c-mux-max735x.yaml         | 106 +++++++++++++++
 .../bindings/i2c/i2c-mux-pca954x.yaml         |   5 +
 drivers/i2c/muxes/Kconfig                     |   4 +-
 drivers/i2c/muxes/i2c-mux-pca954x.c           | 124 ++++++++++++++++--
 4 files changed, 228 insertions(+), 11 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml

Comments

Laurent Pinchart Jan. 8, 2022, 11:17 p.m. UTC | #1 
Hi Patrick,

Thank you for the patch.

On Sat, Jan 08, 2022 at 07:57:57PM +0100, Patrick Rudolph wrote:
> Add a regulator called vdd also present in datasheets of PCA954x
> and MAX735x and update the examples.
> 
> Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
> ---
>  Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml | 5 +++++
>  Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml | 5 +++++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml
> index dc924ec934ca..93eda07718e8 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml
> +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml
> @@ -57,6 +57,9 @@ 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
> @@ -75,6 +78,8 @@ examples:
>              #size-cells = <0>;
>              reg = <0x74>;
>  
> +            vdd-supply = <&p3v3>;
> +
>              i2c@1 {
>                  #address-cells = <1>;
>                  #size-cells = <0>;

This should be part of patch 1/4 (or better in my opinion, the two
binding files should be merged into a single one).

> diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> index 9f1726d0356b..b28d05dc956d 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> @@ -59,6 +59,9 @@ 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 +82,8 @@ examples:
>              #size-cells = <0>;
>              reg = <0x74>;
>  
> +            vdd-supply = <&p3v3>;
> +
>              interrupt-parent = <&ipic>;
>              interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
>              interrupt-controller;

For this part,

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>