From: Sascha Hauer <s.hauer@pengutronix.de> To: linux-pm@vger.kernel.org, Zhang Rui <rui.zhang@intel.com>, Eduardo Valentin <edubezval@gmail.com> Cc: linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Matthias Brugger <matthias.bgg@gmail.com> Subject: [PATCH v12] Add Mediatek thermal support Date: Mon, 30 Nov 2015 12:42:30 +0100 [thread overview] Message-ID: <1448883753-19068-1-git-send-email-s.hauer@pengutronix.de> (raw) 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 v11: - Fix usage of uninitialized variable gcc didn't warn about changes since v10: - Some style cleanup - Add comment to make clear why we use the sensors in banks even if we currently only use the maximum of all banks 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>; }; }; }; };
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From: s.hauer@pengutronix.de (Sascha Hauer) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v12] Add Mediatek thermal support Date: Mon, 30 Nov 2015 12:42:30 +0100 [thread overview] Message-ID: <1448883753-19068-1-git-send-email-s.hauer@pengutronix.de> (raw) 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 v11: - Fix usage of uninitialized variable gcc didn't warn about changes since v10: - Some style cleanup - Add comment to make clear why we use the sensors in banks even if we currently only use the maximum of all banks 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>; }; }; }; };
next reply other threads:[~2015-11-30 11:42 UTC|newest] Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-11-30 11:42 Sascha Hauer [this message] 2015-11-30 11:42 ` [PATCH v12] Add Mediatek thermal support Sascha Hauer 2015-11-30 11:42 ` [PATCH 1/3] dt-bindings: thermal: Add binding document for Mediatek thermal controller Sascha Hauer 2015-11-30 11:42 ` Sascha Hauer 2015-12-16 11:23 ` Daniel Kurtz 2015-12-16 11:23 ` Daniel Kurtz 2015-12-16 11:23 ` Daniel Kurtz 2015-12-17 19:23 ` Eduardo Valentin 2015-12-17 19:23 ` Eduardo Valentin 2015-12-17 19:23 ` Eduardo Valentin 2015-12-18 7:16 ` Sascha Hauer 2015-12-18 7:16 ` Sascha Hauer 2015-12-18 7:16 ` Sascha Hauer 2015-12-20 2:12 ` Eduardo Valentin 2015-12-20 2:12 ` Eduardo Valentin 2015-12-20 2:12 ` Eduardo Valentin 2015-11-30 11:42 ` [PATCH 2/3] thermal: Add Mediatek thermal controller support Sascha Hauer 2015-11-30 11:42 ` Sascha Hauer 2015-12-17 19:33 ` Eduardo Valentin 2015-12-17 19:33 ` Eduardo Valentin 2016-01-04 14:19 ` Sascha Hauer 2016-01-04 14:19 ` Sascha Hauer 2016-01-19 7:29 ` Sascha Hauer 2016-01-19 7:29 ` Sascha Hauer 2016-02-01 2:54 ` Eddie Huang 2016-02-01 2:54 ` Eddie Huang 2016-02-01 2:54 ` Eddie Huang 2016-02-15 2:11 ` Daniel Kurtz 2016-02-15 2:11 ` Daniel Kurtz 2016-02-15 2:11 ` Daniel Kurtz 2016-02-15 2:14 ` Daniel Kurtz 2016-02-15 2:14 ` Daniel Kurtz 2016-02-15 2:14 ` Daniel Kurtz 2016-02-17 17:05 ` Matthias Brugger 2016-02-17 17:05 ` Matthias Brugger 2016-02-17 17:05 ` Matthias Brugger 2016-02-18 10:56 ` Sascha Hauer 2016-02-18 10:56 ` Sascha Hauer 2016-02-18 10:56 ` Sascha Hauer 2016-02-18 14:28 ` Javi Merino 2016-02-18 14:28 ` Javi Merino 2016-02-18 14:28 ` Javi Merino 2016-02-18 15:15 ` Eduardo Valentin 2016-02-18 15:15 ` Eduardo Valentin 2016-02-18 15:15 ` Eduardo Valentin 2016-02-19 7:21 ` Sascha Hauer 2016-02-19 7:21 ` Sascha Hauer 2016-02-19 7:21 ` Sascha Hauer 2015-12-21 4:07 ` Daniel Kurtz 2015-12-21 4:07 ` Daniel Kurtz 2015-12-21 4:07 ` Daniel Kurtz 2016-01-04 14:31 ` Sascha Hauer 2016-01-04 14:31 ` Sascha Hauer 2016-01-04 14:31 ` Sascha Hauer 2016-01-04 15:43 ` Daniel Kurtz 2016-01-04 15:43 ` Daniel Kurtz 2016-01-04 15:43 ` Daniel Kurtz 2015-11-30 11:42 ` [PATCH 3/3] ARM64: dts: mt8173: Add thermal/auxadc device nodes Sascha Hauer 2015-11-30 11:42 ` Sascha Hauer 2016-02-18 16:18 ` Matthias Brugger 2016-02-18 16:18 ` Matthias Brugger 2016-02-19 7:20 ` Sascha Hauer 2016-02-19 7:20 ` Sascha Hauer 2016-04-20 11:23 ` Matthias Brugger 2016-04-20 11:23 ` Matthias Brugger 2015-12-14 10:37 ` [PATCH v12] Add Mediatek thermal support Sascha Hauer 2015-12-14 10:37 ` Sascha Hauer 2015-12-14 10:37 ` Sascha Hauer 2015-12-14 21:08 ` Eduardo Valentin 2015-12-14 21:08 ` Eduardo Valentin 2016-02-18 15:50 ` [PATCH 1/1] thermal: small style cleanup in mtk_thermal Eduardo Valentin 2016-02-18 15:50 ` Eduardo Valentin 2016-02-18 15:56 ` Matthias Brugger 2016-02-18 15:56 ` Matthias Brugger 2016-02-18 15:53 ` [PATCH v12] Add Mediatek thermal support Eduardo Valentin 2016-02-18 15:53 ` Eduardo Valentin
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