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author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2016-12-22 11:38:20 +0100 |
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committer | Eduardo Valentin <edubezval@gmail.com> | 2017-01-20 05:15:28 +0100 |
commit | b022e9b9d0e67f4cba62bc790bd387e23c29dc6c (patch) | |
tree | 5bded76743c9eeedbdf0a40a98d4fc9f7b17d9cf /Documentation | |
parent | Revert "nvme: add support for the Write Zeroes command" (diff) | |
download | linux-b022e9b9d0e67f4cba62bc790bd387e23c29dc6c.tar.xz linux-b022e9b9d0e67f4cba62bc790bd387e23c29dc6c.zip |
thermal: rcar_gen3_thermal: Document the R-Car Gen3
Signed-off-by: Hien Dang <hien.dang.eb@renesas.com>
Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt new file mode 100644 index 000000000000..07a9713ae6a7 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt @@ -0,0 +1,56 @@ +* DT bindings for Renesas R-Car Gen3 Thermal Sensor driver + +On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal +sensors (THS) which are the analog circuits for measuring temperature (Tj) +inside the LSI. + +Required properties: +- compatible : "renesas,<soctype>-thermal", + Examples with soctypes are: + - "renesas,r8a7795-thermal" (R-Car H3) + - "renesas,r8a7796-thermal" (R-Car M3-W) +- reg : Address ranges of the thermal registers. Each sensor + needs one address range. Sorting must be done in + increasing order according to datasheet, i.e. + TSC1, TSC2, ... +- clocks : Must contain a reference to the functional clock. +- #thermal-sensor-cells : must be <1>. + +Optional properties: + +- interrupts : interrupts routed to the TSC (3 for H3 and M3-W) +- power-domain : Must contain a reference to the power domain. This + property is mandatory if the thermal sensor instance + is part of a controllable power domain. + +Example: + + tsc: thermal@e6198000 { + compatible = "renesas,r8a7795-thermal"; + reg = <0 0xe6198000 0 0x68>, + <0 0xe61a0000 0 0x5c>, + <0 0xe61a8000 0 0x5c>; + interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 522>; + power-domains = <&sysc R8A7795_PD_ALWAYS_ON>; + #thermal-sensor-cells = <1>; + status = "okay"; + }; + + thermal-zones { + sensor_thermal1: sensor-thermal1 { + polling-delay-passive = <250>; + polling-delay = <1000>; + thermal-sensors = <&tsc 0>; + + trips { + sensor1_crit: sensor1-crit { + temperature = <90000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + }; + }; |