From: Dien Pham <[email protected]> [dien.pham.ry: arm64: dts: r8a7796: Add support IPA for CA53 core]
Setup a thermal zone driven by SoC temperature sensor. Create passive trip points and bind them to CPUFreq cooling device that supports power extension. In R-Car Gen3, IPA is supportted for only one channel (on H3/M3/M3N board, it is channel THS3). Reason: Currently, IPA controls base on only CPU temperature. And only one thermal channel is assembled closest CPU cores is selected as target of IPA. If other channels are used, IPA controlling is not properly. Signed-off-by: Hien Dang <[email protected]> Signed-off-by: An Huynh <[email protected]> [takeshi.kihara.df: fix W=1 dtc unit_address_vs_reg warnings] Signed-off-by: Takeshi Kihara <[email protected]> Signed-off-by: Yoshihiro Kaneko <[email protected]> --- This patch is based on the devel branch of Simon Horman's renesas tree. arch/arm64/boot/dts/renesas/r8a7796.dtsi | 56 +++++++++++++++----------------- 1 file changed, 27 insertions(+), 29 deletions(-) diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi index afedbf5..98f621c 100644 --- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi @@ -160,6 +160,9 @@ power-domains = <&sysc R8A7796_PD_CA57_CPU0>; next-level-cache = <&L2_CA57>; enable-method = "psci"; + dynamic-power-coefficient = <854>; + cooling-min-level = <0>; + cooling-max-level = <2>; clocks = <&cpg CPG_CORE R8A7796_CLK_Z>; operating-points-v2 = <&cluster0_opp>; capacity-dmips-mhz = <1024>; @@ -186,6 +189,10 @@ power-domains = <&sysc R8A7796_PD_CA53_CPU0>; next-level-cache = <&L2_CA53>; enable-method = "psci"; + #cooling-cells = <2>; + dynamic-power-coefficient = <277>; + cooling-min-level = <0>; + cooling-max-level = <2>; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; capacity-dmips-mhz = <535>; @@ -2822,76 +2829,67 @@ polling-delay-passive = <250>; polling-delay = <1000>; thermal-sensors = <&tsc 0>; + sustainable-power = <3874>; trips { - sensor1_passive: sensor1-passive { - temperature = <95000>; - hysteresis = <1000>; - type = "passive"; - }; sensor1_crit: sensor1-crit { temperature = <120000>; hysteresis = <1000>; type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&sensor1_passive>; - cooling-device = <&a57_0 5 5>, <&a57_1 5 5>; - }; - }; }; sensor_thermal2: sensor-thermal2 { polling-delay-passive = <250>; polling-delay = <1000>; thermal-sensors = <&tsc 1>; + sustainable-power = <3874>; trips { - sensor2_passive: sensor2-passive { - temperature = <95000>; - hysteresis = <1000>; - type = "passive"; - }; sensor2_crit: sensor2-crit { temperature = <120000>; hysteresis = <1000>; type = "critical"; }; }; - - cooling-maps { - map0 { - trip = <&sensor2_passive>; - cooling-device = <&a57_0 5 5>, <&a57_1 5 5>; - }; - }; }; sensor_thermal3: sensor-thermal3 { polling-delay-passive = <250>; polling-delay = <1000>; thermal-sensors = <&tsc 2>; + sustainable-power = <3874>; trips { - sensor3_passive: sensor3-passive { - temperature = <95000>; + threshold: trip-point0 { + temperature = <90000>; hysteresis = <1000>; type = "passive"; }; + + target: trip-point1 { + temperature = <100000>; + hysteresis = <1000>; + type = "passive"; + }; + sensor3_crit: sensor3-crit { temperature = <120000>; hysteresis = <1000>; type = "critical"; }; }; - cooling-maps { map0 { - trip = <&sensor3_passive>; - cooling-device = <&a57_0 5 5>, <&a57_1 5 5>; + trip = <&target>; + cooling-device = <&a57_0 0 2>; + contribution = <1024>; + }; + map1 { + trip = <&target>; + cooling-device = <&a53_0 0 2>; + contribution = <1024>; }; }; }; -- 1.9.1
