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Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details the full gnu general public license is included in this distribution in the file called copying this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope [that] it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details the full gnu general public license is included in this distribution in the file called copying extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 57 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.515993066@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2017 Chelsio Communications. All rights reserved.
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*
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* Written by: Ganesh Goudar (ganeshgr@chelsio.com)
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*/
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#include "cxgb4.h"
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#define CXGB4_NUM_TRIPS 1
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static int cxgb4_thermal_get_temp(struct thermal_zone_device *tzdev,
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int *temp)
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{
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struct adapter *adap = tzdev->devdata;
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u32 param, val;
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int ret;
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param = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
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FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) |
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FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_TMP));
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ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1,
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¶m, &val);
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if (ret < 0 || val == 0)
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return -1;
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*temp = val * 1000;
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return 0;
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}
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static int cxgb4_thermal_get_trip_type(struct thermal_zone_device *tzdev,
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int trip, enum thermal_trip_type *type)
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{
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struct adapter *adap = tzdev->devdata;
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if (!adap->ch_thermal.trip_temp)
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return -EINVAL;
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*type = adap->ch_thermal.trip_type;
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return 0;
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}
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static int cxgb4_thermal_get_trip_temp(struct thermal_zone_device *tzdev,
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int trip, int *temp)
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{
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struct adapter *adap = tzdev->devdata;
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if (!adap->ch_thermal.trip_temp)
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return -EINVAL;
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*temp = adap->ch_thermal.trip_temp;
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return 0;
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}
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static struct thermal_zone_device_ops cxgb4_thermal_ops = {
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.get_temp = cxgb4_thermal_get_temp,
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.get_trip_type = cxgb4_thermal_get_trip_type,
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.get_trip_temp = cxgb4_thermal_get_trip_temp,
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};
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int cxgb4_thermal_init(struct adapter *adap)
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{
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struct ch_thermal *ch_thermal = &adap->ch_thermal;
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int num_trip = CXGB4_NUM_TRIPS;
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u32 param, val;
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int ret;
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/* on older firmwares we may not get the trip temperature,
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* set the num of trips to 0.
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*/
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param = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) |
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FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) |
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FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_MAXTMPTHRESH));
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ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 1,
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¶m, &val);
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if (ret < 0) {
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num_trip = 0; /* could not get trip temperature */
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} else {
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ch_thermal->trip_temp = val * 1000;
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ch_thermal->trip_type = THERMAL_TRIP_CRITICAL;
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}
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ch_thermal->tzdev = thermal_zone_device_register("cxgb4", num_trip,
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0, adap,
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&cxgb4_thermal_ops,
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NULL, 0, 0);
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if (IS_ERR(ch_thermal->tzdev)) {
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ret = PTR_ERR(ch_thermal->tzdev);
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dev_err(adap->pdev_dev, "Failed to register thermal zone\n");
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ch_thermal->tzdev = NULL;
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return ret;
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}
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return 0;
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}
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int cxgb4_thermal_remove(struct adapter *adap)
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{
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if (adap->ch_thermal.tzdev)
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thermal_zone_device_unregister(adap->ch_thermal.tzdev);
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return 0;
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}
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