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Wed, 7 Nov 2018 17:10:37 +0000 (GMT) From: Lukasz Luba To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: rui.zhang@intel.com, edubezval@gmail.com, daniel.lezcano@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, corbet@lwn.net, b.zolnierkie@samsung.com, krzk@kernel.org, Lukasz Luba Subject: [PATCH v2 04/11] Doc: thermal: new irq-mode for trip point Date: Wed, 7 Nov 2018 18:09:46 +0100 Message-Id: <1541610593-28542-5-git-send-email-l.luba@partner.samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1541610593-28542-1-git-send-email-l.luba@partner.samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0WSa0hTYRjHfXd2zo7L6WlqvngLBoJKabcPB4pICjpYUvilaB9y5cHb5mXH S5akRHlLrdTMtHmbYi1FndNseJ2WqDUVp8tL2nQQZovRFAoscp5J337/5/88/+fh5cURYSfq jcclptLyRIlUhPG53e9/6w8/8l0TH9l46kl2VLahpHkwD5A1Nj+ydkSPkrWGOZScnGznkQs5 vqR6bUfV5zZyyRntC4y0FY8Assk4zSEf9I3wSLOpBDvjSrXUtADqbdVnHqXsXedQalUBRi3N 9WJUZ2M2pSwpQ6mhH70cqkSjApRN7X+Zf41/KpqWxqXT8tDTUfzY70NmTvK28JZpcYmXAxRu hcAZh8QJaMmd5xYCPi4kXgI4+tOKsGITwM2GAcAKG4BrXSu8vZEegw1jjWYAh5+voHZjd0TR 7lIIcBwjQmCPKsXe40FUA2jrV/LsAiGWABwvVyL2AXfiLNQatbupXCIAtrbqOXYWEOFwoK8U Ybf5w3l9wS47ExdgzYxlNwgSOh6stg07TjoHzaZOwLI7/DaqcdR94URZEZdlBn7MV2EsZ8G8 sR5Hz0k4PDqN2q9GiCDYpg21IyTCYMN9B7rCT5b99mZkB0u7nyFsWQDzc4VsRiDUFE1xWD4A m1sqHNkUXK6ocDxoDYDl1R+wx+Bg1f9ddQCogBedxshiaOZ4Ip0RwkhkTFpiTMjNJJka7Hyl ib+jWz2gf/uGDhA4ELkIprpMYiEqSWcyZToAcUTkISh+vSoWCqIlmbdpedJ1eZqUZnTAB+eK vAR3nL6IhUSMJJVOoOlkWr7ncnBn7xyQcS9l+Ykl4ZW0VeZzxXPxl6IyjBt06F18k37WfcN6 BVmNurotHZ99yB+PNGYIrBPeU5luC4F3PSKPBS/KwT4zHeibZTBalzcCjOtf+bmGqgjUTxL/ Z0Gx4nZR2SFQKsayw0s164PVKr86rVOXNvtSfUT81pvzgfVOwlRLRYqIy8RKjgYjckbyD2vm eXZGAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprOIsWRmVeSWpSXmKPExsVy+t/xe7p9Mo+jDU7cVrbYOGM9q8WTA+2M FvM+y1rMP3KO1WL+lWusFufPb2C3uNUgY7HpMZC3sG0Ji8XlXXPYLD73HmG0WHr9IpNF694j 7BZPHvaxOfB5rJm3htFj56y77B6L97xk8ti0qpPN4861PWwem5fUeyzum8zqcfDdHiaPvi2r GD0+b5IL4IrSsynKLy1JVcjILy6xVYo2tDDSM7S00DMysdQzNDaPtTIyVdK3s0lJzcksSy3S t0vQy3hz8AlTwR+hioe377A3MM7l72Lk5JAQMJHYceUzWxcjF4eQwFJGiR/XfrNBJMQkJu3b zg5hC0v8udYFVfSJUeJn813mLkYODjYBPYkdqwpB4iIC8xkljm66DFbELPCMUWLl9JdMIN3C As4Su67vApvEIqAqsXbtObA4r4CXxP69k5ghNshJ3DzXCWZzCnhLzLv8FqxeCKjm+6z1bBMY +RYwMqxiFEktLc5Nzy020itOzC0uzUvXS87P3cQIjJRtx35u2cHY9S74EKMAB6MSD6/GjofR QqyJZcWVuYcYJTiYlUR4e1c/ihbiTUmsrEotyo8vKs1JLT7EaAp01ERmKdHkfGAU55XEG5oa mltYGpobmxubWSiJ8543qIwSEkhPLEnNTk0tSC2C6WPi4JRqYLThyfe9oTX568T9Kjk9HlV3 zbb8yjva8Dr2yOZG9kwW1p/n1lS8POgg5e/LZnisoPuzueDqBZm177c4/GwN9tj5N3aqrcqc E2+rl7xN57yc2WDG3VpfffxKlci5+PB71mKTFx42nVux+tOKLdqOe/wqGouX7msQbBXOcF06 TWHnmnD/KcG/A5VYijMSDbWYi4oTASUF5VOqAgAA X-CMS-MailID: 20181107171038eucas1p1eb5dce12a1f5f7a3587f82f8396fa075 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20181107171038eucas1p1eb5dce12a1f5f7a3587f82f8396fa075 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20181107171038eucas1p1eb5dce12a1f5f7a3587f82f8396fa075 References: <1541610593-28542-1-git-send-email-l.luba@partner.samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Thermal trip point gets new flag in DT: irq-mode. Trip point may have a new explicit flag which indicate IRQ support when the temperature is met (so the thermal framework deos not need to set polling for it). It is useful for 'passive' cooling trip point, which now will not be register for polling the temperature. Update documentation about irq-mode for trip points. The new sysfs file shows 1 if the trip point supports IRQ. Cc: Jonathan Corbet Cc: Zhang Rui Cc: linux-doc@vger.kernel.org Signed-off-by: Lukasz Luba --- Documentation/thermal/sysfs-api.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt index 9113997..e405724 100644 --- a/Documentation/thermal/sysfs-api.txt +++ b/Documentation/thermal/sysfs-api.txt @@ -272,6 +272,7 @@ Thermal zone device sys I/F, created once it's registered: |---trip_point_[0-*]_temp: Trip point temperature |---trip_point_[0-*]_type: Trip point type |---trip_point_[0-*]_hyst: Hysteresis value for this trip point + |---trip_point_[0-*]_irq: Trip point supports triggering irq |---emul_temp: Emulated temperature set node |---sustainable_power: Sustainable dissipatable power |---k_po: Proportional term during temperature overshoot @@ -365,6 +366,10 @@ trip_point_[0-*]_type thermal zone. RO, Optional +trip_point_[0-*]_irq + Boolean which indicate that the trip point triggers irq. + RO, Optional + trip_point_[0-*]_hyst The hysteresis value for a trip point, represented as an integer Unit: Celsius @@ -544,12 +549,16 @@ method, the sys I/F structure will be built like this: |---available_policies: step_wise fair_share |---trip_point_0_temp: 100000 |---trip_point_0_type: critical + |---trip_point_0_irq: 1 |---trip_point_1_temp: 80000 |---trip_point_1_type: passive + |---trip_point_1_irq: 1 |---trip_point_2_temp: 70000 |---trip_point_2_type: active0 + |---trip_point_2_irq: 0 |---trip_point_3_temp: 60000 |---trip_point_3_type: active1 + |---trip_point_3_irq: 1 |---cdev0: --->/sys/class/thermal/cooling_device0 |---cdev0_trip_point: 1 /* cdev0 can be used for passive */ |---cdev0_weight: 1024 -- 2.7.4