1 /* 2 * Copyright (C) 2018 Marvell International Ltd. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 * https://spdx.org/licenses 6 */ 7 8 /* Driver for thermal unit located in Marvell ARMADA 8K and compatible SoCs */ 9 10 #include <common/debug.h> 11 #include <drivers/marvell/thermal.h> 12 marvell_thermal_init(struct tsen_config * tsen_cfg)13int marvell_thermal_init(struct tsen_config *tsen_cfg) 14 { 15 if (tsen_cfg->tsen_ready == 1) { 16 INFO("thermal sensor is already initialized\n"); 17 return 0; 18 } 19 20 if (tsen_cfg->ptr_tsen_probe == NULL) { 21 ERROR("initial thermal sensor configuration is missing\n"); 22 return -1; 23 } 24 25 if (tsen_cfg->ptr_tsen_probe(tsen_cfg)) { 26 ERROR("thermal sensor initialization failed\n"); 27 return -1; 28 } 29 30 VERBOSE("thermal sensor was initialized\n"); 31 32 return 0; 33 } 34 marvell_thermal_read(struct tsen_config * tsen_cfg,int * temp)35int marvell_thermal_read(struct tsen_config *tsen_cfg, int *temp) 36 { 37 if (temp == NULL) { 38 ERROR("NULL pointer for temperature read\n"); 39 return -1; 40 } 41 42 if (tsen_cfg->ptr_tsen_read == NULL || 43 tsen_cfg->tsen_ready == 0) { 44 ERROR("thermal sensor was not initialized\n"); 45 return -1; 46 } 47 48 if (tsen_cfg->ptr_tsen_read(tsen_cfg, temp)) { 49 ERROR("temperature read failed\n"); 50 return -1; 51 } 52 53 return 0; 54 } 55