diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-12 20:58:45 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-12 20:58:45 +0200 |
commit | 6a776e47a045462a1df1a3a9592598259ffd614f (patch) | |
tree | 79c3ea4b96e48c7c4389114e738dcc0a972c97c0 /Documentation/devicetree | |
parent | Merge tag 'drm-fixes-for-v4.12-rc1' of git://people.freedesktop.org/~airlied/... (diff) | |
parent | Merge branch 'thermal-soc' into next (diff) | |
download | linux-6a776e47a045462a1df1a3a9592598259ffd614f.tar.xz linux-6a776e47a045462a1df1a3a9592598259ffd614f.zip |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:
- Fix a problem where orderly_shutdown() is called for multiple times
due to multiple critical overheating events raised in a short period
by platform thermal driver. (Keerthy)
- Introduce a backup thermal shutdown mechanism, which invokes
kernel_power_off()/emergency_restart() directly, after
orderly_shutdown() being issued for certain amount of time(specified
via Kconfig). This is useful in certain conditions that userspace may
be unable to power off the system in a clean manner and leaves the
system in a critical state, like in the middle of driver probing
phase. (Keerthy)
- Introduce a new interface in thermal devfreq_cooling code so that the
driver can provide more precise data regarding actual power to the
thermal governor every time the power budget is calculated. (Lukasz
Luba)
- Introduce BCM 2835 soc thermal driver and northstar thermal driver,
within a new sub-folder. (Rafał Miłecki)
- Introduce DA9062/61 thermal driver. (Steve Twiss)
- Remove non-DT booting on TI-SoC driver. Also add support to fetching
coefficients from DT. (Keerthy)
- Refactorf RCAR Gen3 thermal driver. (Niklas Söderlund)
- Small fix on MTK and intel-soc-dts thermal driver. (Dawei Chien,
Brian Bian)
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits)
thermal: core: Add a back up thermal shutdown mechanism
thermal: core: Allow orderly_poweroff to be called only once
Thermal: Intel SoC DTS: Change interrupt request behavior
trace: thermal: add another parameter 'power' to the tracing function
thermal: devfreq_cooling: add new interface for direct power read
thermal: devfreq_cooling: refactor code and add get_voltage function
thermal: mt8173: minor mtk_thermal.c cleanups
thermal: bcm2835: move to the broadcom subdirectory
thermal: broadcom: ns: specify myself as MODULE_AUTHOR
thermal: da9062/61: Thermal junction temperature monitoring driver
Documentation: devicetree: thermal: da9062/61 TJUNC temperature binding
thermal: broadcom: add Northstar thermal driver
dt-bindings: thermal: add support for Broadcom's Northstar thermal
thermal: bcm2835: add thermal driver for bcm2835 SoC
dt-bindings: Add thermal zone to bcm2835-thermal example
thermal: rcar_gen3_thermal: add suspend and resume support
thermal: rcar_gen3_thermal: store device match data in private structure
thermal: rcar_gen3_thermal: enable hardware interrupts for trip points
thermal: rcar_gen3_thermal: record and check number of TSCs found
thermal: rcar_gen3_thermal: check that TSC exists before memory allocation
...
Diffstat (limited to 'Documentation/devicetree')
3 files changed, 101 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/thermal/brcm,bcm2835-thermal.txt b/Documentation/devicetree/bindings/thermal/brcm,bcm2835-thermal.txt index 474531d2b2c5..da8c5b73ad10 100644 --- a/Documentation/devicetree/bindings/thermal/brcm,bcm2835-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/brcm,bcm2835-thermal.txt @@ -3,15 +3,39 @@ Binding for Thermal Sensor driver for BCM2835 SoCs. Required parameters: ------------------- -compatible: should be one of: "brcm,bcm2835-thermal", - "brcm,bcm2836-thermal" or "brcm,bcm2837-thermal" -reg: Address range of the thermal registers. -clocks: Phandle of the clock used by the thermal sensor. +compatible: should be one of: "brcm,bcm2835-thermal", + "brcm,bcm2836-thermal" or "brcm,bcm2837-thermal" +reg: Address range of the thermal registers. +clocks: Phandle of the clock used by the thermal sensor. +#thermal-sensor-cells: should be 0 (see thermal.txt) Example: +thermal-zones { + cpu_thermal: cpu-thermal { + polling-delay-passive = <0>; + polling-delay = <1000>; + + thermal-sensors = <&thermal>; + + trips { + cpu-crit { + temperature = <80000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + coefficients = <(-538) 407000>; + + cooling-maps { + }; + }; +}; + thermal: thermal@7e212000 { compatible = "brcm,bcm2835-thermal"; reg = <0x7e212000 0x8>; clocks = <&clocks BCM2835_CLOCK_TSENS>; + #thermal-sensor-cells = <0>; }; diff --git a/Documentation/devicetree/bindings/thermal/brcm,ns-thermal b/Documentation/devicetree/bindings/thermal/brcm,ns-thermal new file mode 100644 index 000000000000..68e047170039 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/brcm,ns-thermal @@ -0,0 +1,37 @@ +* Broadcom Northstar Thermal + +This binding describes thermal sensor that is part of Northstar's DMU (Device +Management Unit). + +Required properties: +- compatible : Must be "brcm,ns-thermal" +- reg : iomem address range of PVTMON registers +- #thermal-sensor-cells : Should be <0> + +Example: + +thermal: thermal@1800c2c0 { + compatible = "brcm,ns-thermal"; + reg = <0x1800c2c0 0x10>; + #thermal-sensor-cells = <0>; +}; + +thermal-zones { + cpu_thermal: cpu-thermal { + polling-delay-passive = <0>; + polling-delay = <1000>; + coefficients = <(-556) 418000>; + thermal-sensors = <&thermal>; + + trips { + cpu-crit { + temperature = <125000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + }; + }; +}; diff --git a/Documentation/devicetree/bindings/thermal/da9062-thermal.txt b/Documentation/devicetree/bindings/thermal/da9062-thermal.txt new file mode 100644 index 000000000000..e241bb5a5584 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/da9062-thermal.txt @@ -0,0 +1,36 @@ +* Dialog DA9062/61 TJUNC Thermal Module + +This module is part of the DA9061/DA9062. For more details about entire +DA9062 and DA9061 chips see Documentation/devicetree/bindings/mfd/da9062.txt + +Junction temperature thermal module uses an interrupt signal to identify +high THERMAL_TRIP_HOT temperatures for the PMIC device. + +Required properties: + +- compatible: should be one of the following valid compatible string lines: + "dlg,da9061-thermal", "dlg,da9062-thermal" + "dlg,da9062-thermal" + +Optional properties: + +- polling-delay-passive : Specify the polling period, measured in + milliseconds, between thermal zone device update checks. + +Example: DA9062 + + pmic0: da9062@58 { + thermal { + compatible = "dlg,da9062-thermal"; + polling-delay-passive = <3000>; + }; + }; + +Example: DA9061 using a fall-back compatible for the DA9062 onkey driver + + pmic0: da9061@58 { + thermal { + compatible = "dlg,da9061-thermal", "dlg,da9062-thermal"; + polling-delay-passive = <3000>; + }; + }; |