Re: [PATCH v3 3/5] i2c: designware: Add slave definitions

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On Fri, 2016-11-18 at 11:19 +0000, Luis Oliveira wrote:
>  - Add slave defintitions to i2c-designware-core
>  - Changes in Kconfig to auto-enable I2C_SLAVE when compiling the
> modules
>  - Add compatible string to designware-core.txt explaining the
> devicetree bindings
> 


> --- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
> @@ -2,7 +2,9 @@
>  
>  Required properties :
>  
> - - compatible : should be "snps,designware-i2c"
> + - compatible : should be:
> +   - "snps,designware-i2c" to setup the hardware block as I2C master.
> +   - "snps,designware-i2c-slave" to setup the hardware block as I2C
> slave.

Not sure about this one.

Compatible string is more generic than list of modes. Basically you have
to add a property which selects mode.

DT people's ACK is a must for this change.


--- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -470,6 +470,7 @@ config I2C_DESIGNWARE_CORE
>  config I2C_DESIGNWARE_PLATFORM
>  	tristate "Synopsys DesignWare Platform"
>  	select I2C_DESIGNWARE_CORE
> +	select I2C_SLAVE
> 

Common rule, generic dependencies usually go first

	select I2C_SLAVE
 	select I2C_DESIGNWARE_CORE

-- 
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy
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