From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Date: Fri, 28 Feb 2014 13:53:46 +0000 Subject: Re: [RFC 0/4] ARM: shmobile: Add CPUFreq support for r8a7790-lager platform Message-Id: <1649276.HB5pdkE1O7@avalon> List-Id: References: <1393456190-7870-1-git-send-email-bcousson@baylibre.com> In-Reply-To: <1393456190-7870-1-git-send-email-bcousson@baylibre.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sh@vger.kernel.org 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