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SubjectRe: [PATCH v2 02/11] dt-bindings: i2c: npcm: support NPCM845
On Sun, Feb 20, 2022 at 11:53:12AM +0800, Tyrone Ting wrote:
> From: Tyrone Ting <kfting@nuvoton.com>
>
> Add compatible and nuvoton,sys-mgr description for NPCM i2c module.
>
> Signed-off-by: Tyrone Ting <kfting@nuvoton.com>
> Signed-off-by: Tali Perry <tali.perry1@gmail.com>
> ---
> .../bindings/i2c/nuvoton,npcm7xx-i2c.yaml | 17 ++++++++++++-----
> 1 file changed, 12 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml b/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
> index 128444942aec..809c51ac32fe 100644
> --- a/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
> +++ b/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
> @@ -7,17 +7,18 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
> title: nuvoton NPCM7XX I2C Controller Device Tree Bindings
>
> description: |
> - The NPCM750x includes sixteen I2C bus controllers. All Controllers support
> - both master and slave mode. Each controller can switch between master and slave
> - at run time (i.e. IPMB mode). Each controller has two 16 byte HW FIFO for TX and
> - RX.
> + I2C bus controllers of the NPCM series support both master and
> + slave mode. Each controller can switch between master and slave at run time
> + (i.e. IPMB mode). HW FIFO for TX and RX are supported.
>
> maintainers:
> - Tali Perry <tali.perry1@gmail.com>
>
> properties:
> compatible:
> - const: nuvoton,npcm750-i2c
> + enum:
> + - nuvoton,npcm750-i2c
> + - nuvoton,npcm845-i2c
>
> reg:
> maxItems: 1
> @@ -36,11 +37,16 @@ properties:
> default: 100000
> enum: [100000, 400000, 1000000]
>
> + nuvoton,sys-mgr:
> + $ref: "/schemas/types.yaml#/definitions/phandle"
> + description: The phandle of system manager register node.
> +
> required:
> - compatible
> - reg
> - interrupts
> - clocks
> + - nuvoton,sys-mgr

You can't make nuvoton,sys-mgr required for existing users. You can add
an if/then schema for nuvoton,npcm845-i2c if you want to make it
required in that case.

Rob

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