On 26 May 2014 21:27, Lucas Stach wrote:
> No, we need the regulator to determine which OPPs are actually useable.
> If the regulator is only supplying 1.1V we can only scale to 800MHz max,
> which is the case for some of the industrial i.MX53 versions.
Go and add another binding for this max-vol
Am Montag, den 26.05.2014, 21:05 +0530 schrieb Viresh Kumar:
> On 26 May 2014 20:58, Lucas Stach wrote:
> > The platform I'm working on supports cpu rail voltage regulation just
> > fine.
>
> So, the regulator can be scaled to support all values from your dts
> and we can work without MAX-volt pa
On 26 May 2014 20:58, Lucas Stach wrote:
> The platform I'm working on supports cpu rail voltage regulation just
> fine.
So, the regulator can be scaled to support all values from your dts
and we can work without MAX-volt parameter here..
> I just want to make sure that the driver works properly
Am Montag, den 26.05.2014, 20:52 +0530 schrieb Viresh Kumar:
> On 26 May 2014 19:28, Lucas Stach wrote:
> > Right, the OPP in my example define the minimum required voltage for
> > each frequency. This is in accordance to the OPP binding. But for this
> > chip the datasheet explicitly says that it
On 26 May 2014 19:28, Lucas Stach wrote:
> Right, the OPP in my example define the minimum required voltage for
> each frequency. This is in accordance to the OPP binding. But for this
> chip the datasheet explicitly says that it is ok to power the cpu rail
> with up to 1.4V, regardless of the cur
Am Montag, den 26.05.2014, 19:14 +0530 schrieb Viresh Kumar:
> On 26 May 2014 18:41, Lucas Stach wrote:
>
> Just to mention that I am trying to help you and am not opposing any
> change. We can add this field if its really required and I am just trying
> to understand your problem and if we can s
On 26 May 2014 18:41, Lucas Stach wrote:
Just to mention that I am trying to help you and am not opposing any
change. We can add this field if its really required and I am just trying
to understand your problem and if we can solve it with current code.
> No, setting voltage-tolerance to zero mea
Am Montag, den 26.05.2014, 18:26 +0530 schrieb Viresh Kumar:
> On 26 May 2014 18:05, Lucas Stach wrote:
[...]
>
> > 2. Usage of a fixed max voltage, rather than a voltage-tolerance. i.MX5
> > has a fixed maximum voltage, which is valid across all operating points.
> > I'm really opposed to using
On 26 May 2014 18:05, Lucas Stach wrote:
> Ok I can push down the clock handling into the imx5 clk driver.
Great !!
> This leaves two more differences between imx5-cpufreq and cpufreq-cpu0:
>
> 1. Disabling of OPPs that could not be supported by the connected
> regulator. I think this part can e
Am Montag, den 26.05.2014, 16:36 +0530 schrieb Viresh Kumar:
> On 26 May 2014 16:15, Lucas Stach wrote:
> > This driver handles the i.MX5 specific clock reparenting to be able to
> > reprogramm the PLL. cpufreq-cpu0 can only change a postdivider of the
> > PLL, which means we can't reach the exact
On 26 May 2014 16:15, Lucas Stach wrote:
> This driver handles the i.MX5 specific clock reparenting to be able to
> reprogramm the PLL. cpufreq-cpu0 can only change a postdivider of the
> PLL, which means we can't reach the exact OPP frequencies and can not
> profit from the additional power savin
Am Montag, den 26.05.2014, 16:02 +0530 schrieb Viresh Kumar:
> On 26 May 2014 15:45, Lucas Stach wrote:
> > SoC specific driver to be able to handle PLL reprogramming
> > for exact OPP frequencies and additional power saving.
> >
> > Signed-off-by: Lucas Stach
> > ---
> > .../devicetree/bindings
On 26 May 2014 15:45, Lucas Stach wrote:
> SoC specific driver to be able to handle PLL reprogramming
> for exact OPP frequencies and additional power saving.
>
> Signed-off-by: Lucas Stach
> ---
> .../devicetree/bindings/cpufreq/cpufreq-imx5.txt | 43 +++
> drivers/cpufreq/Kconfig.arm
SoC specific driver to be able to handle PLL reprogramming
for exact OPP frequencies and additional power saving.
Signed-off-by: Lucas Stach
---
.../devicetree/bindings/cpufreq/cpufreq-imx5.txt | 43 +++
drivers/cpufreq/Kconfig.arm| 8 +
drivers/cpufreq/Makefile
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