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From: Pavel Machek <pavel@ucw.cz>
To: Stephen Boyd <sboyd@codeaurora.org>
Cc: Mike Turquette <mturquette@linaro.org>,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	Viresh Kumar <viresh.kumar@linaro.org>,
	devicetree@vger.kernel.org
Subject: Re: [PATCH v3 00/13] Krait clocks + Krait CPUfreq
Date: Thu, 2 Apr 2015 08:17:40 +0200	[thread overview]
Message-ID: <20150402061740.GA23963@amd> (raw)
In-Reply-To: <1426920332-9340-1-git-send-email-sboyd@codeaurora.org>

Hi!

On Fri 2015-03-20 23:45:19, Stephen Boyd wrote:
> These patches provide cpufreq scaling on devices with Krait CPUs.
> In Krait CPU designs there's one PLL and two muxes per CPU, allowing
> us to switch CPU frequencies independently.
> 
> 				 secondary
> 	 +-----+                    +
> 	 | QSB |-------+------------|\
> 	 +-----+       |            | |-+
> 		       |    +-------|/  |
> 		       |    |       +   |
> 	 +-----+       |    |           |
> 	 | PLL |----+-------+           |   primary
> 	 +-----+    |  |                |     +
> 		    |  |                +-----|\       +------+
> 	 +-------+  |  |                      | \      |      |
> 	 | HFPLL |----------+-----------------|  |-----| CPU0 |
> 	 +-------+  |  |    |                 |  |     |      |
> 		    |  |    | +-----+         | /      +------+
> 		    |  |    +-| / 2 |---------|/
> 		    |  |      +-----+         +
> 		    |  |         secondary
> 		    |  |            +
> 		    |  +------------|\
> 		    |               | |-+
> 		    +---------------|/  |   primary
> 				    +   |     +
> 					+-----|\       +------+
> 	 +-------+          v                 | \      |      |
> 	 | HFPLL |----------------------------|  |-----| CPU1 |
> 	 +-------+          |                 |  |     |      |
> 			    | +-----+         | /      +------+
> 			    +-| / 2 |---------|/
> 			      +-----+         +

Nice ascii art :-). There should be "+" at place marked by "v" :-).

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  parent reply	other threads:[~2015-04-02  6:17 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-21  6:45 [PATCH v3 00/13] Krait clocks + Krait CPUfreq Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 01/13] ARM: Add Krait L2 register accessor functions Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 02/13] clk: mux: Split out register accessors for reuse Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 03/13] clk: Avoid sending high rates to downstream clocks during set_rate Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 04/13] clk: Add safe switch hook Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 05/13] clk: qcom: Add support for High-Frequency PLLs (HFPLLs) Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 06/13] clk: qcom: Add HFPLL driver Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 07/13] clk: qcom: Add MSM8960/APQ8064's HFPLLs Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 08/13] clk: qcom: Add IPQ806X's HFPLLs Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 09/13] clk: qcom: Add support for Krait clocks Stephen Boyd
     [not found] ` <1426920332-9340-1-git-send-email-sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-03-21  6:45   ` [PATCH v3 10/13] clk: qcom: Add KPSS ACC/GCC driver Stephen Boyd
2015-03-21  6:45   ` [PATCH v3 11/13] clk: qcom: Add Krait clock controller driver Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 12/13] cpufreq: Add module to register cpufreq on Krait CPUs Stephen Boyd
2015-03-21  6:45 ` [PATCH v3 13/13] ARM: dts: qcom: Add necessary DT data for Krait cpufreq Stephen Boyd
2015-04-02  6:17 ` Pavel Machek [this message]
2015-04-02  6:18 ` [PATCH v3 00/13] Krait clocks + Krait CPUfreq Pavel Machek

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