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Commit 527ca23a authored by Saravana Kannan's avatar Saravana Kannan
Browse files

cpufreq: Delete unused CPUBW and cache scaling code from cpufreq driver 



The devfreq cpufreq governor and the devfreq devices for CPUBW and cache
now handle CPUBW and cache frequency scaling based on CPU frequency. So,
delete all the unused code in the cpufreq driver that relates to scaling
CPUBW and cache.

Also update the msm-cpufreq DT format/data accordingly.

Change-Id: I30bf7d8478c964ffa300dd78039cd8c280ec63fc
Signed-off-by: default avatarSaravana Kannan <skannan@codeaurora.org>
parent 50de3d2a

Documentation/devicetree/bindings/arm/msm/msm-cpufreq.txt

+24 −24
Original line number Diff line number Diff line 
Qualcomm MSM CPUfreq device



msm-cpufreq is a device that represents the list of useable CPU frequencies

and the cache frequency and/or memory bandwidth required for each of them. It

also captures the bus master/slave ports towards which the bus bandwidth

requests need to be made to ensure the required memory bandwidth.

msm-cpufreq is a device that represents the list of usable CPU frequencies

and provides a device handle for the CPUfreq driver to get the CPU and cache

clocks.



Required properties:

- compatible:		Must be "qcom,msm-cpufreq"

- qcom,cpufreq-table:	A list of tuples where each tuple consists of a

			usable CPU frequency (KHz), an optional cache

			frequency (KHz) and a mandatory memory bandwidth

			value (MBPS) listed in that order.  The cache

			frequencies shall not be listed if the device cannot

			run the cache asynchronous to one or more CPUs.

- qcom,cpufreq-table:	A list of usable CPU frequencies (KHz)



Optional properties:

- clock-names:		When DT based binding of clock is available, this

			provides a list of CPU subsystem clocks.

			"cpuX_clk" for every CPU that's present.

			"l2_clk" when an async cache/CCI is present.



Example:

	qcom,msm-cpufreq@0 {

		regs = <0 4>

		compatible = "qcom,msm-cpufreq";

		qcom,cpufreq-table =

			<  300000  300000  600 >,

			<  422400  422400 1200 >,

			<  652800  499200 1600 >,

			<  729600  576000 2456 >,

			<  883200  576000 2456 >,

			<  960000  960000 3680 >,

			< 1036800 1036800 3680 >,

			< 1190400 1036800 3680 >,

			< 1267200 1267200 6400 >,

			< 1497600 1497600 6400 >,

			< 1574400 1574400 6400 >,

			< 1728000 1651200 6400 >,

			< 1958400 1728000 7448 >,

			< 2265600 1728000 7448 >;

			<  300000 >,

			<  422400 >,

			<  652800 >,

			<  729600 >,

			<  883200 >,

			<  960000 >,

			< 1036800 >,

			< 1190400 >,

			< 1267200 >,

			< 1497600 >,

			< 1574400 >,

			< 1728000 >,

			< 1958400 >,

			< 2265600 >;

	};

arch/arm/boot/dts/qcom/apq8084.dtsi

+18 −18
Original line number Diff line number Diff line
@@ -2626,24 +2626,24 @@ 
			 <&clock_krait clk_krait2_clk>,

			 <&clock_krait clk_krait3_clk>;

		qcom,cpufreq-table =

			<  300000  300000  1144 >,

			<  422400  422400  2288 >,

			<  652800  499200  3051 >,

			<  729600  576000  5996 >,

			<  883200  576000  5996 >,

			<  960000  960000  8056 >,

			< 1036800 1036800  8056 >,

			< 1190400 1036800  8056 >,

			< 1267200 1036800 10101 >,

			< 1497600 1036800 10101 >,

			< 1574400 1574400 12145 >,

			< 1728000 1651200 12145 >,

			< 1958400 1728000 16250 >,

			< 2265600 1728000 16250 >,

			< 2457600 1728000 16250 >,

			< 2496000 1728000 16250 >,

			< 2572800 1728000 16250 >,

			< 2649600 1728000 16250 >;

			<  300000 >,

			<  422400 >,

			<  652800 >,

			<  729600 >,

			<  883200 >,

			<  960000 >,

			< 1036800 >,

			< 1190400 >,

			< 1267200 >,

			< 1497600 >,

			< 1574400 >,

			< 1728000 >,

			< 1958400 >,

			< 2265600 >,

			< 2457600 >,

			< 2496000 >,

			< 2572800 >,

			< 2649600 >;

	};



	usb_otg: usb@f9a55000 {

arch/arm/boot/dts/qcom/fsm9900.dtsi

+14 −14
Original line number Diff line number Diff line
@@ -737,20 +737,20 @@ 
			 <&clock_krait clk_krait2_clk>,

			 <&clock_krait clk_krait3_clk>;

		qcom,cpufreq-table =

			<  300000  300000  572 >,

			<  422400  422400 1144 >,

			<  576000  576000 2342 >,

			<  729600  729600 2342 >,

			<  883200  883200 2342 >,

			< 1036800 1036800 3509 >,

			< 1190400 1190400 3509 >,

			< 1344000 1344000 6103 >,

			< 1497600 1497600 6103 >,

			< 1651200 1651200 6103 >,

			< 1804800 1651200 6103 >,

			< 1958400 1651200 6103 >,

			< 2112000 1651200 6103 >,

			< 2265600 1651200 6103 >;

			<  300000 >,

			<  422400 >,

			<  576000 >,

			<  729600 >,

			<  883200 >,

			< 1036800 >,

			< 1190400 >,

			< 1344000 >,

			< 1497600 >,

			< 1651200 >,

			< 1804800 >,

			< 1958400 >,

			< 2112000 >,

			< 2265600 >;

	};



	clock_krait: qcom,clock-krait@f9016000 {

arch/arm/boot/dts/qcom/mdm9630.dtsi

+5 −5
Original line number Diff line number Diff line
@@ -774,11 +774,11 @@ 
		reg = <0 4>;

		compatible = "qcom,msm-cpufreq";

		qcom,cpufreq-table =

			<  300000 1266 >,

			<  600000 1266 >,

			<  787200 2540 >,

			<  998400 3051 >,

			< 1152000 3051 >;

			<  300000 >,

			<  600000 >,

			<  787200 >,

			<  998400 >,

			< 1152000 >;

	};



	qcom,msm-thermal {

arch/arm/boot/dts/qcom/msm8226.dtsi

+14 −14
Original line number Diff line number Diff line
@@ -1027,20 +1027,20 @@ 
		reg = <0 4>;

		compatible = "qcom,msm-cpufreq";

		qcom,cpufreq-table =

			<  300000 1525 >,

			<  384000 1525 >,

			<  600000 1525 >,

			<  787200 1525 >,

			<  998400 4066 >,

			< 1094400 4066 >,

			< 1190400 4066 >,

			< 1305600 4066 >,

			< 1344000 4066 >,

			< 1401600 4066 >,

			< 1497600 4066 >,

			< 1593600 4066 >,

			< 1689600 4066 >,

			< 1785600 4066 >;

			<  300000 >,

			<  384000 >,

			<  600000 >,

			<  787200 >,

			<  998400 >,

			< 1094400 >,

			< 1190400 >,

			< 1305600 >,

			< 1344000 >,

			< 1401600 >,

			< 1497600 >,

			< 1593600 >,

			< 1689600 >,

			< 1785600 >;

	};



	qcom,ocmem@fdd00000 {