Re: [RFC 0/4] ARM: shmobile: Add CPUFreq support for r8a7790-lager platform

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Benoit,

On Thursday 27 February 2014 00:09:46 Benoit Cousson wrote:
> Hi Magnus,
> 
> This not-yet-ready-to-merge series is adding CPUFreq support to Lager board.
> 
> Due to the missing data for the OPP voltage values, a safe 1.0v value is
> used for all OPPs.
> 
> At least this series can be used by Laurent to test the z-clock CCF node
> and the KICK bit fix I've just sent.
> 
> Bottom-line, no real DVFS so far, but just DFS :-)
> 
> Please note that this series is safe even in the case of Cortex A7 boot
> since the cpufreq-cpu0 driver is using the physical CPU@0 device node.
> In the case of CA7 boot, the first cpu will be the CPU@100, and thus
> the driver will fail at probe time due to the lack of CPU@0.

I'd like to test that on r8a7791, can I use the same parameters (voltages, 
frequencies and OPPs) ?

> Benoit Cousson (4):
>   ARM: dts: r8a7790-lager: Add VDD MPU regulator for DVFS
>   ARM: dts: r8a7790-lager: Add DVFS parameters into cpu0 node for
>     r8a7790
>   ARM: shmobile: lager-reference: Add cpufreq-cpu0 device for CPUFreq
>     support
>   ARM: shmobile: Make r8a77900 CPUFreq capable
> 
>  arch/arm/boot/dts/r8a7790-lager.dts            | 25 +++++++++++++++++++++++
>  arch/arm/boot/dts/r8a7790.dtsi                 | 11 +++++++++++
>  arch/arm/mach-shmobile/Kconfig                 |  2 ++
>  arch/arm/mach-shmobile/board-lager-reference.c |  3 +++
>  4 files changed, 41 insertions(+)

-- 
Regards,

Laurent Pinchart