On Wed, Sep 27, 2023 at 12:47:59PM +1300, Chris Packham wrote:
> Some newer Marvell SoCs support an "unstuck" function for I2C bus
> recovery. This is an alternative to the generic GPIO based recovery that
> the older SoCs use. The unstuck register falls outside of the usual
> address block for the I2C controller so requires an additional cell in
> the register property. This is optional and does not need to be
> supplied.
>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Thanks,
Conor.
> ---
> .../devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml b/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
> index 984fc1ed3ec6..461d1c9ee3f7 100644
> --- a/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
> +++ b/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
> @@ -45,7 +45,10 @@ properties:
> auto-detects this and sets it appropriately.
>
> reg:
> - maxItems: 1
> + minItems: 1
> + items:
> + - description: I2C controller registers
> + - description: I2C unstuck register
>
> interrupts:
> maxItems: 1
> --
> 2.42.0
>
>