[alsa-devel] SSM2518 Device Tree support ?

Lars-Peter Clausen lars at metafoo.de
Thu Aug 13 14:21:52 CEST 2015


On 08/13/2015 02:12 PM, Ricard Wanderlof wrote:
> 
> We needed DT support in the SSM2518 codec driver, and I noticed that there 
> is already a set of bindings specified in Documentation/devicetree, 
> however, there doesn't seem to be any DT support in the driver itself. I 
> don't know if this is the result of a missing commit ? 

There is DT support in the driver. E.g. see the of_get_gpio() call.

What's not in the driver is a explicit of match table. It will work without
since the I2C subsystem supports matching based on the I2C ID table. But,
yes, it is better to add a explicit OF table to indicate that this works.

> 
> Documentation/devicetree/bindings/sound/ssm2518.c seems to have been added 
> in May 2013.
> 
> I've added rudimentary support for at least the compatible property so 
> that the driver can be used in a system with DT configuration (sent as a 
> separate email).


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