From mboxrd@z Thu Jan 1 00:00:00 1970 From: miquel.raynal@bootlin.com (Miquel Raynal) Date: Fri, 23 Nov 2018 17:17:28 +0100 Subject: [PATCH v2 4/6] dt-bindings: cp110: document the thermal interrupt capabilities In-Reply-To: <20181123161730.11289-1-miquel.raynal@bootlin.com> References: <20181123161730.11289-1-miquel.raynal@bootlin.com> Message-ID: <20181123161730.11289-5-miquel.raynal@bootlin.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The thermal IP can produce interrupts on overheat situation. Describe them. Signed-off-by: Miquel Raynal --- .../bindings/arm/marvell/cp110-system-controller.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt index 81ce742d2760..4db4119a6d19 100644 --- a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt +++ b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt @@ -199,6 +199,9 @@ Thermal: The thermal IP can probe the temperature all around the processor. It may feature several channels, each of them wired to one sensor. +It is possible to setup an overheat interrupt by giving at least one +critical point to any subnode of the thermal-zone node. + For common binding part and usage, refer to Documentation/devicetree/bindings/thermal/thermal.txt @@ -208,6 +211,11 @@ Required properties: - reg: register range associated with the thermal functions. Optional properties: +- interrupts-extended: overheat interrupt handle. Should point to + a line of the ICU-SEI irqchip (116 is what is usually used by the + firmware). The ICU-SEI will redirect towards interrupt line #37 of the + AP SEI which is shared across all CPs. + See interrupt-controller/interrupts.txt - #thermal-sensor-cells: shall be <1> when thermal-zones subnodes refer to this IP and represents the channel ID. There is one sensor per channel. O refers to the thermal IP internal channel. @@ -220,6 +228,7 @@ CP110_LABEL(syscon1): system-controller at 6f8000 { CP110_LABEL(thermal): thermal-sensor at 70 { compatible = "marvell,armada-cp110-thermal"; reg = <0x70 0x10>; + interrupts-extended = <&CP110_LABEL(icu_sei) 116 IRQ_TYPE_LEVEL_HIGH>; #thermal-sensor-cells = <1>; }; }; -- 2.19.1