[PATCH v2 0/6] ARM: berlin: add cpufreq support
From: Antoine Tenart <hidden>
Date: 2015-08-18 14:39:16
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linux-pm, lkml
Hi, On Tue, Aug 18, 2015 at 06:26:42PM +0530, Viresh Kumar wrote:
On Tue, Aug 18, 2015 at 5:16 PM, Antoine Tenart [off-list ref] wrote:quoted
This series adds the cpufreq support to the Berlin SoCs, using cpufreq-dt. First, the cpuclk clock is added to the BG2Q clock driver. This clock has a divider fixed to 1, so we use a fixed factor clock here. Then register a platform device for cpufreq-dt. I also added the OPP table definition in the BG2Q, BG2 and BG2CD device trees. When using a BG2Q, some bootloaders may update this table when booting (mine doesn't).You can switch to OPP-v2 bindings if you want. Just have a look, they are much more powerful.. Should be in linux-next/master.
Nice! However, it seems the OPP-v2 table takes precedence over the old one. When a default OPP-v2 table is supplied in the device tree, if the bootloader supplies an OPP table the old way it won't be taken into account. So if I understood correctly, this won't work here for the BG2Q. Antoine -- Antoine T?nart, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com