[PATCH 0/3] Add DVFS support on CPU clock for Armada 37xx

Stephen Boyd sboyd at codeaurora.org
Thu Dec 21 15:13:41 PST 2017


On 11/30, Gregory CLEMENT wrote:
> Hi,
> 
> This small series is needed to use DVFS on Armada 37xx. When DVFS is
> enabled the CPU clock setting is done using an other set of registers
> from the North Bridge Power Management block.
> 
> The series adds the possibility to modify the CPU frequency using the
> associate load level matching the target frequency. However
> configuring the frequencies for each load is done by the cpufreq
> driver submitted in a separate series.
> 
> Obviously having both series (cpufreq and clk) is needed to support
> DVFS on Armada 37xx, but there is no dependencies between the series
> (for building or at runtime).
> 

Are you relying on the clk API returning an error to detect if
DVFS is present or not? Just curious why that part of the code
was there.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project



More information about the linux-arm-kernel mailing list