Thread (10 messages) 10 messages, 4 authors, 2015-07-09

Re: [PATCH v5 1/2] dt-bindings: mediatek: Add MT8173 cpufreq driver binding

From: Viresh Kumar <viresh.kumar@linaro.org>
Date: 2015-07-08 11:19:12
Also in: linux-arm-kernel, linux-devicetree, linux-mediatek, lkml

On 01-07-15, 10:16, Pi-Cheng Chen wrote:
quoted hunk ↗ jump to hunk
This patch adds device tree binding document for MT8173 cpufreq driver.

Signed-off-by: Pi-Cheng Chen <redacted>
Reviewed-by: Michael Turquette <mturquette@baylibre.com>
---
 .../devicetree/bindings/cpufreq/cpufreq-mt8173.txt | 145 +++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-mt8173.txt
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mt8173.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-mt8173.txt
new file mode 100644
index 0000000..65701c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-mt8173.txt
@@ -0,0 +1,145 @@
+
+Mediatek MT8173 cpufreq driver
+------------------------------
+
+Mediatek MT8173 cpufreq driver for CPU frequency scaling.
+
+Required properties:
+- clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock names.
+- clock-names: Should contain the following:
+	"cpu"		- The multiplexer for clock input of CPU cluster.
+	"intermediate"	- A parent of "cpu" clock which is used as "intermediate" clock
+			  source (usually MAINPLL) when the original CPU PLL is under
+			  transition and not stable yet.
+	Please refer to Documentation/devicetree/bindings/clk/clock-bindings.txt for
+	generic clock consumer properties.
Don't have any intentions to halt this series anymore, I have
irritated you enough already :)

But, what about moving these bindings in something like a clock
driver?

@Mike: ?

I am asking because these really belong to the clock driver, as I
understood it from Mike. And clearly asked me to not take care of such
things in cpufreq core/drivers.

Another reason is that, later you will kill this driver one day and
use cpufreq-dt. And then you will be required to move these bindings
to a clock driver, as these will stay.

-- 
viresh
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