ARM: tegra: ouya: Enable memory frequency thermal throttling using ACTMON

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 Ouya in order to
use it as a cooling device which throttles memory freq on overheat.

Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra30-ouya.dts b/arch/arm/boot/dts/tegra30-ouya.dts
index 9a10e0d..ab8744f 100644 (file)
--- a/arch/arm/boot/dts/tegra30-ouya.dts
+++ b/arch/arm/boot/dts/tegra30-ouya.dts
@@ -463,7 +463,9 @@
                                        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>;
                                };
                        };
                };