[PATCH 2/8] cpufreq: add driver for Armada XP
From: Thomas Petazzoni <hidden>
Date: 2014-07-16 15:47:41
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linux-pm
Dear Viresh Kumar, On Wed, 16 Jul 2014 21:02:29 +0530, Viresh Kumar wrote:
quoted
Would be good to have this soon, since the 3.17 merge window is approaching. You asked me to use this cpufreq-generic driver instead of a custom cpufreq driver, and I did the work to do that. So now I clearly hope that cpufreq-generic will be merged in 3.17.Yeah, I have already pinged Rafael few days back on this. He came back from holidays last week and this is what he told me: Jul 11 19:58:34 <vireshk> rafael, when are you going to pick stuff for 3.17? Jul 11 19:59:11 <rafael> vireshk: next week i suppose
Ok.
Do you depend on this patch btw? https://www.mail-archive.com/linux-kernel at vger.kernel.org/msg675398.html Actually there had been some objections to comparing clocks this way and we *might* hold this off, unless the bindings are finalized. Will get all other patches merged though.
I'm not sure to fully understand what this patch is doing, but I believe I depend on it. My system has one clock for each CPU, and therefore each CPU has a separately controllable frequency. See http://git.infradead.org/linux-mvebu.git/blob/3843607838cc5436d02a6771e661969a54c2fee0:/arch/arm/boot/dts/armada-xp-mv78460.dtsi#l30 for the Device Tree part describing the CPUs. So the existing cpufreq-cpu0 (as of 3.16) doesn't work because it assumes there is one single clock controlling the frequency. Best regards, Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com