[PATCHv3 4/7] ARM: mvebu: update Armada XP DT for dynamic frequency scaling
From: Jason Cooper <hidden>
Date: 2014-07-16 12:55:27
Also in:
linux-pm
From: Jason Cooper <hidden>
Date: 2014-07-16 12:55:27
Also in:
linux-pm
On Wed, Jul 09, 2014 at 05:45:12PM +0200, Thomas Petazzoni wrote:
In order to support dynamic frequency scaling: * the cpuclk Device Tree node needs to be updated to describe a second set of registers describing the PMU DFS registers. * the clock-latency property of the CPUs must be filled, otherwise the ondemand and conservative cpufreq governors refuse to work. The latency is high because the cost of a frequency transition is quite high on those CPUs. Signed-off-by: Thomas Petazzoni <redacted> --- arch/arm/boot/dts/armada-xp-mv78230.dtsi | 2 ++ arch/arm/boot/dts/armada-xp-mv78260.dtsi | 2 ++ arch/arm/boot/dts/armada-xp-mv78460.dtsi | 4 ++++ arch/arm/boot/dts/armada-xp.dtsi | 2 +- 4 files changed, 9 insertions(+), 1 deletion(-)
Applied to mvebu/dt thx, Jason.