[RFC] ARM: dts: imx27: Add core voltages

[Shawn Guo]

On Mon, Jul 08, 2013 at 08:34:04AM +0400, Alexander Shiyan wrote:
> > On Sun, Jul 07, 2013 at 06:51:02PM +0400, Alexander Shiyan wrote:
> > > This patch adds core voltages for i.MX27 CPUs. Only 266 and 400 MHz modes
> > > is documented in the datasheet, we add a 266 MHz frequency for conform this.
> > > For 133 MHz CPU frequency minimal voltage is used (1.2V).
> > > 
> > Ok, just checked i.MX27 data sheet, it seems that only 266 and 400 MHz
> > set points are officially supported.  So there is no documented voltage
> > for 133 MHz.  I'm wondering if we should have 133 MHz set point at all
> > if it's not officially supported.
> 
> Then how about removing the frequency of 133MHz, and increase tolerance
> of up to 5% in order to be able to play voltages for devices demanding low
> power consumption?

Sounds good to me.

Shawn