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Commit a95fe6bc authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "defconfig: msm8953: Enable bus scaling for msm8953"

parents 3f6f6d7c ec1f2e33

Documentation/devicetree/bindings/devfreq/devfreq-spdm.txt

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MSM SPDM bandwidth monitor device



devfreq-spdm is a device that represents a device that is monitored by the SPDM

hardware to measure the traffic status of configured master ports on the bus.





Required properties:

-compatible:			Must be "qcom,devfreq_spdm"

-clock-names:			Clocks used to measure current bus frequency.

				Expected names are "cci_clk"

-clocks:			References to named clocks

-qcom,spdm-client:		Client id of the port being monitored

-qcom,bw-upstep:		Initial up vote size in MB/s

-qcom,bw-dwnstep:		Initial down vote size in MB/s

-qcom,max-vote:			Vote ceiling in MB/s

-qcom,ports:			SPDM ports used by this device

-qcom,alpha-up:			SPDM filter up alpha value

-qcom,alpha-down:		SPDM filter down alpha value

-qcom,bucket-size:		SPDM filter bucket size

-qcom,pl-freqs:			The driver supports different filter values at

				three different performance levels.  This value

				defines the cut-over frequenices

-qcom,reject-rate:		Desired rejection rate used to calculate

				SPDM threshold

-qcom,response-time-us:	Desired response time used to calculate

				SPDM threshold

-qcom,cci-response-time-us:	Desired response time used to calculate

				SPDM threshold when CCI is under heavy load

-qcom,max-cci-freq:		CCI frequency at which cci_response_time_us

				is used

-qcom,up-step-multp:		used to increase rate of growth on up votes

-qcom,spdm-interval:		down-vote polling interval



Example:

devfreq_spdm_cpu {

	compatible = "qcom,devfreq_spdm";

	qcom,msm-bus,name = "devfreq_spdm";

	qcom,msm-bus,num-cases = <2>;

	qcom,msm-bus,num-paths = <1>;

	qcom,msm-bus,vectors-KBps =

			<1 512 0 0>,

			<1 512 0 0>;

	qcom,spdm-client = <0>;



	clock-names = "cci_clk";

	clocks = <&clock_cpu clk_cci_clk>;



	qcom,bw-upstep = <100>;

	qcom,bw-dwnstep = <100>;

	qcom,max-vote = <10000>;

	qcom,up-step-multp = <2>;

	qcom,spdm-interval = <100>;



	qcom,ports = <16>;

	qcom,alpha-up = <7>;

	qcom,alpha-down = <15>;

	qcom,bucket-size = <8>;



	/*max pl1 freq, max pl2 freq*/

	qcom,pl-freqs = <149999999 150000000>;



	/* pl1 low, pl1 high, pl2 low, pl2 high, pl3 low, pl3 high */

	qcom,reject-rate = <5000 5000 5000 5000 5000 5000>;

	/* pl1 low, pl1 high, pl2 low, pl2 high, pl3 low, pl3 high */

	qcom,response-time-us = <220 220 2000 2000 900 900>;

	/* pl1 low, pl1 high, pl2 low, pl2 high, pl3 low, pl3 high */

	qcom,cci-response-time-us = <50 50 30 30 20 20>;

	qcom,max-cci-freq = <600000000>;

};



This device is always used with the SPDM governor which requires a device tree

entry to know what IRQ to respond to.



Required properties:

-compatible			Must be "qcom,gov_spdm_hyp"

-interrupt-names		SPDM irq to handle.  Name should be "spdm-irq"

-interrupts			The interrupt number the SPDM hw is assigned



Example:

devfreq_spdm_gov {

	compatible = "qcom,gov_spdm_hyp";

	interrupt-names = "spdm-irq";

	interrupts = <0 192 0>;

};

arch/arm64/boot/dts/qcom/msm8953-bus.dtsi

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File added.

Preview size limit exceeded, changes collapsed.

arch/arm64/boot/dts/qcom/msm8953.dtsi

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@@ -128,6 +128,7 @@ 
#include "msm8953-pinctrl.dtsi"

#include "msm8953-cpu.dtsi"

#include "msm8953-pm.dtsi"

#include "msm8953-bus.dtsi"





&soc {

arch/arm64/configs/msm8953-perf_defconfig

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@@ -425,6 +425,7 @@ CONFIG_QCOM_EUD=y 
CONFIG_QCOM_WATCHDOG_V2=y

CONFIG_QCOM_MEMORY_DUMP_V2=y

CONFIG_MSM_RPM_SMD=y

CONFIG_QCOM_BUS_SCALING=y

CONFIG_QCOM_SECURE_BUFFER=y

CONFIG_QCOM_EARLY_RANDOM=y

CONFIG_MSM_SMEM=y
@@ -443,6 +444,8 @@ CONFIG_MSM_EVENT_TIMER=y 
CONFIG_MSM_PM=y

CONFIG_QTI_RPM_STATS_LOG=y

CONFIG_QCOM_FORCE_WDOG_BITE_ON_PANIC=y

CONFIG_SPDM_SCM=y

CONFIG_DEVFREQ_SPDM=y

CONFIG_PWM=y

CONFIG_PWM_QPNP=y

CONFIG_ARM_GIC_V3_ACL=y

arch/arm64/configs/msm8953_defconfig

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@@ -441,6 +441,7 @@ CONFIG_QCOM_EUD=y 
CONFIG_QCOM_WATCHDOG_V2=y

CONFIG_QCOM_MEMORY_DUMP_V2=y

CONFIG_MSM_RPM_SMD=y

CONFIG_QCOM_BUS_SCALING=y

CONFIG_QCOM_SECURE_BUFFER=y

CONFIG_QCOM_EARLY_RANDOM=y

CONFIG_MSM_SMEM=y
@@ -460,6 +461,8 @@ CONFIG_MSM_EVENT_TIMER=y 
CONFIG_MSM_PM=y

CONFIG_QTI_RPM_STATS_LOG=y

CONFIG_QCOM_FORCE_WDOG_BITE_ON_PANIC=y

CONFIG_SPDM_SCM=y

CONFIG_DEVFREQ_SPDM=y

CONFIG_PWM=y

CONFIG_PWM_QPNP=y

CONFIG_ARM_GIC_V3_ACL=y