Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753325AbbKIKOZ (ORCPT ); Mon, 9 Nov 2015 05:14:25 -0500 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:35145 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753091AbbKIKOV (ORCPT ); Mon, 9 Nov 2015 05:14:21 -0500 From: Sascha Hauer To: linux-pm@vger.kernel.org, Zhang Rui , Eduardo Valentin Cc: linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Matthias Brugger , devicetree@vger.kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Subject: [PATCH v10] Add Mediatek thermal support Date: Mon, 9 Nov 2015 11:13:30 +0100 Message-Id: <1447064013-13026-1-git-send-email-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.6.1 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3062 Lines: 104 This series adds support for the thermal sensors included in the MT8173 SoC. Currently only basic temperature reading is supported without any interrupt support. The cpufreq driver for MT8173 is currently under review, so there's no real cooling device available in mainline. Until this is available the thermal driver can be tested with the following dts snippet. It creates a fake gpio fan and a fake trip point which is so low that it can easily be reached with a "cat /dev/zero > /dev/null" on the command line. Sascha changes since v9: - rebase on v4.3 - Add support for reading the calibration values from nvmem fuses - Only register a single thermal zone instead of four as it seems that's everything needed changes since v8: - Add commit description to binding patch - rebase on v4.3-rc2 changes since v7: - re-add some used defines removed in v5 - Use MT8173_THERMAL_ZONE_* defines as array indices in static initializers changes since v6: - remove dot in Hanyi Wus name changes since v5: - update copyright - remove unused defines Changes since v4: - give calibration constants more meaningful names (offset, slope) - Use define instead of 0x00c for register access. Changes since v3: - add include/dt-bindings/thermal/mt8173.h for to be able to use sensor names in dts files - fix disabling wrong clock in error path - remove now unused reset-names property from binding document - rename MT8173_NUM_BANKS -> MT8173_NUM_ZONES - rename MT8173_NUM_SENSING_POINTS -> MT8173_NUM_SENSORS_PER_ZONE - rename struct thermal_zone_device *tz -> struct thermal_zone_device *tzd Changes since v2: - sort #includes alphabetically - Add prefix to register defines - drop some members from struct mtk_thermal - simplify raw_to_mcelsius() - add and use more register bit defines - use device_reset() instead of devm_reset_control_get()/reset_control_reset() - misc other stuff Changes since v1: - Use "mediatek," prefix for custom properties - Drop "thermal: consistently use int for temperatures" dependency ------------- fan: gpio_fan { compatible = "gpio-fan"; gpios = <&pio 24 0>; gpio-fan,speed-map = <0 0 4500 1>; #cooling-cells = <2>; }; thermal-zones { cpu_thermal: cpu_thermal { polling-delay-passive = <1000>; /* milliseconds */ polling-delay = <1000>; /* milliseconds */ thermal-sensors = <&thermal>; trips { cpu_passive: cpu_passive { temperature = <47000>; /* millicelsius */ hysteresis = <2000>; /* millicelsius */ type = "passive"; }; cpu_crit { temperature = <90000>; /* millicelsius */ hysteresis = <2000>; /* millicelsius */ type = "critical"; }; }; cooling-maps { map0 { trip = <&cpu_passive>; cooling-device = <&fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; }; }; }; }; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/