| Message ID | 20170616112825.31025-2-mperttunen@nvidia.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Eduardo Valentin |
| Headers | show |
On Fri, Jun 16, 2017 at 02:28:23PM +0300, Mikko Perttunen wrote: > In Tegra186, the BPMP (Boot and Power Management Processor) implements > an interface that is used to read system temperatures, including CPU > cluster and GPU temperatures. This binding describes the thermal sensor > that is exposed by BPMP. > > Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> > --- > .../thermal/nvidia,tegra186-bpmp-thermal.txt | 32 ++++++++++++++++++++++ > .../dt-bindings/thermal/tegra186-bpmp-thermal.h | 14 ++++++++++ > 2 files changed, 46 insertions(+) > create mode 100644 Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt > create mode 100644 include/dt-bindings/thermal/tegra186-bpmp-thermal.h Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt b/Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt new file mode 100644 index 000000000000..276387dd6815 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt @@ -0,0 +1,32 @@ +NVIDIA Tegra186 BPMP thermal sensor + +In Tegra186, the BPMP (Boot and Power Management Processor) implements an +interface that is used to read system temperatures, including CPU cluster +and GPU temperatures. This binding describes the thermal sensor that is +exposed by BPMP. + +The BPMP thermal node must be located directly inside the main BPMP node. See +../firmware/nvidia,tegra186-bpmp.txt for details of the BPMP binding. + +This node represents a thermal sensor. See thermal.txt for details of the +core thermal binding. + +Required properties: +- compatible: + Array of strings. + One of: + - "nvidia,tegra186-bpmp-thermal". +- #thermal-sensor-cells: Cell for sensor index. + Single-cell integer. + Must be <1>. + +Example: + +bpmp { + ... + + bpmp_thermal: thermal { + compatible = "nvidia,tegra186-bpmp-thermal"; + #thermal-sensor-cells = <1>; + }; +}; diff --git a/include/dt-bindings/thermal/tegra186-bpmp-thermal.h b/include/dt-bindings/thermal/tegra186-bpmp-thermal.h new file mode 100644 index 000000000000..a96b8fa31aab --- /dev/null +++ b/include/dt-bindings/thermal/tegra186-bpmp-thermal.h @@ -0,0 +1,14 @@ +/* + * This header provides constants for binding nvidia,tegra186-bpmp-thermal. + */ + +#ifndef _DT_BINDINGS_THERMAL_TEGRA186_BPMP_THERMAL_H +#define _DT_BINDINGS_THERMAL_TEGRA186_BPMP_THERMAL_H + +#define TEGRA186_BPMP_THERMAL_ZONE_CPU 2 +#define TEGRA186_BPMP_THERMAL_ZONE_GPU 3 +#define TEGRA186_BPMP_THERMAL_ZONE_AUX 4 +#define TEGRA186_BPMP_THERMAL_ZONE_PLLX 5 +#define TEGRA186_BPMP_THERMAL_ZONE_AO 6 + +#endif
In Tegra186, the BPMP (Boot and Power Management Processor) implements an interface that is used to read system temperatures, including CPU cluster and GPU temperatures. This binding describes the thermal sensor that is exposed by BPMP. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> --- .../thermal/nvidia,tegra186-bpmp-thermal.txt | 32 ++++++++++++++++++++++ .../dt-bindings/thermal/tegra186-bpmp-thermal.h | 14 ++++++++++ 2 files changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt create mode 100644 include/dt-bindings/thermal/tegra186-bpmp-thermal.h