RE: [PATCH 1/3] i2c/at91: add support for runtime PM

2014-10-20 Thread Yang, Wenyou
.kernel.org; Ferre, Nicolas; linux-arm-ker...@lists.infradead.org > Subject: Re: [PATCH 1/3] i2c/at91: add support for runtime PM > > Hi Wenyou, > > On Mon, Oct 20, 2014 at 11:42:12AM +0800, Wenyou Yang wrote: > > Drivers should put the device into low power states proactively >

Re: [PATCH 1/3] i2c/at91: add support for runtime PM

2014-10-20 Thread Ludovic Desroches
Adding Kevin in the CC list since he had some comments about the PM runtime support for the SPI driver. On Mon, Oct 20, 2014 at 02:39:14PM +0200, Ludovic Desroches wrote: > Hi Wenyou, > > On Mon, Oct 20, 2014 at 11:42:12AM +0800, Wenyou Yang wrote: > > Drivers should put the device into low power

Re: [PATCH 1/3] i2c/at91: add support for runtime PM

2014-10-20 Thread Ludovic Desroches
Hi Wenyou, On Mon, Oct 20, 2014 at 11:42:12AM +0800, Wenyou Yang wrote: > Drivers should put the device into low power states proactively whenever the > device is not in use. Thus implement support for runtime PM and use the > autosuspend feature to make sure that we can still perform well in case