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From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/3] Add DVFS support on CPU clock for Armada 37xx
Date: Thu, 21 Dec 2017 15:13:41 -0800	[thread overview]
Message-ID: <20171221231341.GC7997@codeaurora.org> (raw)
In-Reply-To: <20171130134029.20751-1-gregory.clement@free-electrons.com>

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

  parent reply	other threads:[~2017-12-21 23:13 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-30 13:40 [PATCH 0/3] Add DVFS support on CPU clock for Armada 37xx Gregory CLEMENT
2017-11-30 13:40 ` [PATCH 1/3] clk: mvebu: armada-37xx-periph: cosmetic changes Gregory CLEMENT
2017-12-21 23:12   ` Stephen Boyd
2017-11-30 13:40 ` [PATCH 2/3] clk: mvebu: armada-37xx-periph: prepare cpu clk to be used with DVFS Gregory CLEMENT
2017-12-21 23:12   ` Stephen Boyd
2017-11-30 13:40 ` [PATCH 3/3] clk: mvebu: armada-37xx-periph: add DVFS support for cpu clocks Gregory CLEMENT
2017-12-21 23:12   ` Stephen Boyd
2017-12-21 10:53 ` [PATCH 0/3] Add DVFS support on CPU clock for Armada 37xx Gregory CLEMENT
2017-12-21 23:13 ` Stephen Boyd [this message]
2017-12-22 10:02   ` Gregory CLEMENT

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