Hi

On 05/01/12 12:02, Peter Meerwald wrote:

Hello,

the tlv320aic3x codec driver requests a number of supplies/regulators (IOVDD, DVDD, AVDD, DRVDD), these seem mandatory for the codec driver to operate and somehow tied to the rx51 platform

They are the supply voltages for the aix3x codecs and not tied to rx51 only.

I want to use the tlv320aic3x codec driver with some other board where I don't care about supplies/regulators -- how is this going to work? do I need to have dummy supplies just to keep tlv320aic3x happy?

shouldn't the ai3x_supply_names be something that is optional and passed in via platform_data?

Simplest option in case you don't have *any* controllable regulator or if the kernel is not touching them is to not enable CONFIG_REGULATOR.

IMHO optional platform data for CONFIG_REGULATOR=y case doesn't win much over defining fixed voltage regulators. Either it would be duplicate information or needs modification to a machine driver anyway. And the regulator framework can be useful in debugging too, like following the use_counts via sysfs and so on.