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[v1,6/7] ARM: tegra: nexus7: Enable memory frequency thermal throttling using ACTMON

Message ID 20210510211008.30300-7-digetx@gmail.com
State Accepted
Commit fe7482b88590635939c4bb786e1cd3bbd9ea1682
Headers show
Series Add thermal cooling support to NVIDIA Tegra devfreq | expand

Commit Message

Dmitry Osipenko May 10, 2021, 9:10 p.m. UTC 
The ACTMON module monitors activity of memory clients and then devfreq
driver makes decisions about a required memory frequency based on info
from ACTMON. Add ACTMON device to the thermal zone of Nexus 7 in order
to use it as a cooling device which throttles memory freq on overheat.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
index c6264738f593..27adca7f4175 100644
--- a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
+++ b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
@@ -1279,7 +1279,8 @@  map0 {
 					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
 							 <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
 							 <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
-							 <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+							 <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&actmon THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
 				};
 			};
 		};