[PATCH v13 3/5] ARM: dts: add RK3288 Thermal data
From: dmitry.torokhov@gmail.com (Dmitry Torokhov)
Date: 2014-10-24 00:48:18
Also in:
linux-devicetree, linux-pm, lkml
Hi Caesar, On Thu, Oct 23, 2014 at 05:40:05PM +0800, Caesar Wang wrote:
quoted hunk ↗ jump to hunk
This patch changes a dtsi file to contain the thermal data on RK3288 and later SoCs. This data will enable a thermal shutdown over 125C. Signed-off-by: Caesar Wang <redacted> --- arch/arm/boot/dts/rk3288-thermal.dtsi | 65 +++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 arch/arm/boot/dts/rk3288-thermal.dtsidiff --git a/arch/arm/boot/dts/rk3288-thermal.dtsi b/arch/arm/boot/dts/rk3288-thermal.dtsi new file mode 100644 index 0000000..c361262 --- /dev/null +++ b/arch/arm/boot/dts/rk3288-thermal.dtsi@@ -0,0 +1,65 @@ +/* + * Device Tree Source for RK3288 SoC thermal + * + * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <dt-bindings/thermal/thermal.h> + +reserve_thermal: reserve_thermal { + polling-delay-passive = <500>; /* milliseconds */ + polling-delay = <1000>; /* milliseconds */ + + /* sensor ID */ + thermal-sensors = <&tsadc 0>; + +}; + +cpu_thermal: cpu_thermal { + polling-delay-passive = <500>; /* milliseconds */ + polling-delay = <1000>; /* milliseconds */
Given that the hardware supports alarm interrupts I think we should be able to lower polling frequency. I'd say 5 seconds for polling-delay and 1 second for when we trip over passive point? Thanks. -- Dmitry