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| author | Peter Robinson <pbrobinson@gmail.com> | 2018-09-26 21:09:43 +0100 |
|---|---|---|
| committer | Peter Robinson <pbrobinson@gmail.com> | 2018-09-26 21:09:43 +0100 |
| commit | 49bf49c457f4216a8df24634689bb3e4dea46879 (patch) | |
| tree | 63544d97ba92513d5e380a65413b0201d6286e96 /bcm2835-cpufreq-add-CPU-frequency-control-driver.patch | |
| parent | 2b0301e373c42caefa2fc673afa64a4aaeb0b05f (diff) | |
| download | kernel-49bf49c457f4216a8df24634689bb3e4dea46879.tar.gz kernel-49bf49c457f4216a8df24634689bb3e4dea46879.tar.xz kernel-49bf49c457f4216a8df24634689bb3e4dea46879.zip | |
Add thermal trip to bcm283x (Raspberry Pi) cpufreq
Diffstat (limited to 'bcm2835-cpufreq-add-CPU-frequency-control-driver.patch')
| -rw-r--r-- | bcm2835-cpufreq-add-CPU-frequency-control-driver.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/bcm2835-cpufreq-add-CPU-frequency-control-driver.patch b/bcm2835-cpufreq-add-CPU-frequency-control-driver.patch index 1ab2c7750..e845e0070 100644 --- a/bcm2835-cpufreq-add-CPU-frequency-control-driver.patch +++ b/bcm2835-cpufreq-add-CPU-frequency-control-driver.patch @@ -299,3 +299,98 @@ index 4adb85e66be3..aaefb078f391 100644 -- 2.17.1 +From d00bd46b40001d3500b8a7207dcfe1d66600e47e Mon Sep 17 00:00:00 2001 +From: Stefan Wahren <stefan.wahren@i2se.com> +Date: Wed, 26 Sep 2018 21:13:22 +0200 +Subject: [PATCH] ARM: bcm2837: Use CPU0 as cooling device + +Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> +--- + arch/arm/boot/dts/bcm2837.dtsi | 25 +++++++++++++++++++++++++ + arch/arm/boot/dts/bcm283x.dtsi | 2 +- + 2 files changed, 26 insertions(+), 1 deletion(-) + +diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi +index 9cfc553..1590d94 100644 +--- a/arch/arm/boot/dts/bcm2837.dtsi ++++ b/arch/arm/boot/dts/bcm2837.dtsi +@@ -1,4 +1,5 @@ + #include "bcm283x.dtsi" ++#include <dt-bindings/thermal/thermal.h> + + / { + compatible = "brcm,bcm2837"; +@@ -47,6 +48,7 @@ + clocks = <&arm_clk>; + clock-names = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; ++ #cooling-cells = <2>; + }; + + cpu1: cpu@1 { +@@ -58,6 +60,7 @@ + clocks = <&arm_clk>; + clock-names = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; ++ #cooling-cells = <2>; + }; + + cpu2: cpu@2 { +@@ -69,6 +72,7 @@ + clocks = <&arm_clk>; + clock-names = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; ++ #cooling-cells = <2>; + }; + + cpu3: cpu@3 { +@@ -80,6 +84,7 @@ + clocks = <&arm_clk>; + clock-names = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; ++ #cooling-cells = <2>; + }; + }; + +@@ -117,6 +122,26 @@ + + &cpu_thermal { + coefficients = <(-538) 412000>; ++ ++ trips { ++ cpu_alert0: cpu-alert0 { ++ temperature = <70000>; ++ hysteresis = <0>; ++ type = "passive"; ++ }; ++ }; ++ ++ cooling-maps { ++ map0 { ++ trip = <&cpu_alert0>; ++ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; ++ }; ++ ++ map1 { ++ trip = <&cpu_crit>; ++ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; ++ }; ++ }; + }; + + /* enable thermal sensor with the correct compatible property set */ +diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi +index 31b2964..2def068 100644 +--- a/arch/arm/boot/dts/bcm283x.dtsi ++++ b/arch/arm/boot/dts/bcm283x.dtsi +@@ -38,7 +38,7 @@ + thermal-sensors = <&thermal>; + + trips { +- cpu-crit { ++ cpu_crit: cpu-crit { + temperature = <80000>; + hysteresis = <0>; + type = "critical"; +-- +2.7.4 |