This patch updates the LM90's devicetree definition to include the #thermal-sensor-cells property as well as the sensor constants in include/dt-bindings/thermal/lm90.h. Cc: Wei Ni <wni@xxxxxxxxxx> Signed-off-by: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx> --- I'm aware that there was atleast one previous attempt to add thermal_zone temperature sensors for the LM90 module. This was discussed on: <http://www.gossamer-threads.com/lists/linux/kernel/1992853> <https://lkml.org/lkml/2014/3/4/194> This RFC is meant to get it going again. As I would really like to have this functionality for the Netgear WNDR4700. This router uses a G781 to measure the SoCs temperature in order to regulate a TC654 fan-controller. <https://git.lede-project.org/?p=source.git;a=commit;h=9e0fd1b52ad1f805a308bf6a5a13236f352fd962> --- Documentation/devicetree/bindings/hwmon/lm90.txt | 6 ++++++ MAINTAINERS | 1 + include/dt-bindings/thermal/lm90.h | 12 ++++++++++++ 3 files changed, 19 insertions(+) create mode 100644 include/dt-bindings/thermal/lm90.h diff --git a/Documentation/devicetree/bindings/hwmon/lm90.txt b/Documentation/devicetree/bindings/hwmon/lm90.txt index e8632486b9ef..97581266e329 100644 --- a/Documentation/devicetree/bindings/hwmon/lm90.txt +++ b/Documentation/devicetree/bindings/hwmon/lm90.txt @@ -33,6 +33,11 @@ Optional properties: LM90 "-ALERT" pin output. See interrupt-controller/interrupts.txt for the format. +- #thermal-sensor-cells: should be set to 1. See thermal/thermal.txt for + details. See <include/dt-bindings/thermal/lm90.h> for the + definition of the local, remote and 2nd remote sensor index + constants. + Example LM90 node: temp-sensor { @@ -41,4 +46,5 @@ temp-sensor { vcc-supply = <&palmas_ldo6_reg>; interrupt-parent = <&gpio>; interrupts = <TEGRA_GPIO(O, 4) IRQ_TYPE_LEVEL_LOW>; + #thermal-sensor-cells = <1>; } diff --git a/MAINTAINERS b/MAINTAINERS index 5e637e2b3ff9..8c2ea8a18064 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7541,6 +7541,7 @@ S: Maintained F: Documentation/hwmon/lm90 F: Documentation/devicetree/bindings/hwmon/lm90.txt F: drivers/hwmon/lm90.c +F: include/dt-bindings/thermal/lm90.h LM95234 HARDWARE MONITOR DRIVER M: Guenter Roeck <linux@xxxxxxxxxxxx> diff --git a/include/dt-bindings/thermal/lm90.h b/include/dt-bindings/thermal/lm90.h new file mode 100644 index 000000000000..39d90f3e63ee --- /dev/null +++ b/include/dt-bindings/thermal/lm90.h @@ -0,0 +1,12 @@ +/* + * This header provides constants for the LM90 thermal bindings. + */ + +#ifndef _DT_BINDINGS_THERMAL_LM90_H_ +#define _DT_BINDINGS_THERMAL_LM90_H_ + +#define LM90_REMOTE_TEMPERATURE 0 +#define LM90_LOCAL_TEMPERATURE 1 +#define LM90_REMOTE2_TEMPERATURE 2 + +#endif -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
