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464 lines
12 KiB
464 lines
12 KiB
/* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/pm.h>
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/slab.h>
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#include <linux/thermal.h>
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#include "thermal_core.h"
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#include "tsens.h"
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#include "qcom/qti_virtual_sensor.h"
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LIST_HEAD(tsens_device_list);
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#if defined(CONFIG_SEC_PM)
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static struct delayed_work ts_print_work;
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/* SM7150,SM7125 */
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#if defined (CONFIG_ARCH_SEC_SM7150) || defined (CONFIG_ARCH_ATOLL)
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struct tsens_device *ts_tmdev0 = NULL;
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struct tsens_device *ts_tmdev1 = NULL;
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static int ts_print_num_a[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}; //cpu0-7 cpuss0, gpuss0
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static int ts_print_num_b[] = {0, 3, 5, 8}; // aoss1, ddr, camera, npu
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/* SM6150 */
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#else
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struct tsens_device *ts_tmdev;
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static int ts_print_num[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
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#endif
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static int ts_print_count;
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#endif
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static int tsens_get_temp(void *data, int *temp)
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{
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struct tsens_sensor *s = data;
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struct tsens_device *tmdev = s->tmdev;
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return tmdev->ops->get_temp(s, temp);
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}
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static int tsens_set_trip_temp(void *data, int low_temp, int high_temp)
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{
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struct tsens_sensor *s = data;
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struct tsens_device *tmdev = s->tmdev;
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if (tmdev->ops->set_trips)
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return tmdev->ops->set_trips(s, low_temp, high_temp);
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return 0;
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}
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static int tsens_init(struct tsens_device *tmdev)
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{
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return tmdev->ops->hw_init(tmdev);
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}
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static int tsens_calib(struct tsens_device *tmdev)
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{
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return tmdev->ops->calibrate(tmdev);
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}
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static int tsens_register_interrupts(struct tsens_device *tmdev)
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{
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if (tmdev->ops->interrupts_reg)
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return tmdev->ops->interrupts_reg(tmdev);
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return 0;
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}
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static const struct of_device_id tsens_table[] = {
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{ .compatible = "qcom,msm8996-tsens",
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.data = &data_tsens2xxx,
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},
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{ .compatible = "qcom,msm8953-tsens",
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.data = &data_tsens2xxx,
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},
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{ .compatible = "qcom,msm8998-tsens",
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.data = &data_tsens2xxx,
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},
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{ .compatible = "qcom,msmhamster-tsens",
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.data = &data_tsens2xxx,
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},
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{ .compatible = "qcom,sdm660-tsens",
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.data = &data_tsens23xx,
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},
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{ .compatible = "qcom,sdm630-tsens",
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.data = &data_tsens23xx,
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},
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{ .compatible = "qcom,sm6150-tsens",
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.data = &data_tsens23xx,
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},
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{ .compatible = "qcom,sdm845-tsens",
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.data = &data_tsens24xx,
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},
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{ .compatible = "qcom,tsens24xx",
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.data = &data_tsens24xx,
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},
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{ .compatible = "qcom,msm8937-tsens",
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.data = &data_tsens14xx,
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},
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{ .compatible = "qcom,qcs405-tsens",
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.data = &data_tsens14xx_405,
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},
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{ .compatible = "qcom,mdm9607-tsens",
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.data = &data_tsens14xx_9607,
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},
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{}
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};
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MODULE_DEVICE_TABLE(of, tsens_table);
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static struct thermal_zone_of_device_ops tsens_tm_thermal_zone_ops = {
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.get_temp = tsens_get_temp,
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.set_trips = tsens_set_trip_temp,
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};
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static int get_device_tree_data(struct platform_device *pdev,
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struct tsens_device *tmdev)
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{
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struct device_node *of_node = pdev->dev.of_node;
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const struct of_device_id *id;
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const struct tsens_data *data;
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int rc = 0;
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struct resource *res_tsens_mem;
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if (!of_match_node(tsens_table, of_node)) {
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pr_err("Need to read SoC specific fuse map\n");
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return -ENODEV;
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}
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id = of_match_node(tsens_table, of_node);
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if (id == NULL) {
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pr_err("can not find tsens_table of_node\n");
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return -ENODEV;
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}
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data = id->data;
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tmdev->ops = data->ops;
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tmdev->ctrl_data = data;
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tmdev->pdev = pdev;
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if (!tmdev->ops || !tmdev->ops->hw_init || !tmdev->ops->get_temp) {
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pr_err("Invalid ops\n");
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return -EINVAL;
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}
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/* TSENS register region */
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res_tsens_mem = platform_get_resource_byname(pdev,
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IORESOURCE_MEM, "tsens_srot_physical");
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if (!res_tsens_mem) {
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pr_err("Could not get tsens physical address resource\n");
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return -EINVAL;
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}
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tmdev->tsens_srot_addr = devm_ioremap_resource(&pdev->dev,
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res_tsens_mem);
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if (IS_ERR(tmdev->tsens_srot_addr)) {
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dev_err(&pdev->dev, "Failed to IO map TSENS registers.\n");
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return PTR_ERR(tmdev->tsens_srot_addr);
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}
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/* TSENS TM register region */
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res_tsens_mem = platform_get_resource_byname(pdev,
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IORESOURCE_MEM, "tsens_tm_physical");
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if (!res_tsens_mem) {
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pr_err("Could not get tsens physical address resource\n");
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return -EINVAL;
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}
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tmdev->tsens_tm_addr = devm_ioremap_resource(&pdev->dev,
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res_tsens_mem);
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if (IS_ERR(tmdev->tsens_tm_addr)) {
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dev_err(&pdev->dev, "Failed to IO map TSENS TM registers.\n");
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return PTR_ERR(tmdev->tsens_tm_addr);
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}
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tmdev->phys_addr_tm = res_tsens_mem->start;
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/* TSENS eeprom register region */
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res_tsens_mem = platform_get_resource_byname(pdev,
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IORESOURCE_MEM, "tsens_eeprom_physical");
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if (!res_tsens_mem) {
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pr_debug("Could not get tsens physical address resource\n");
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} else {
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tmdev->tsens_calib_addr = devm_ioremap_resource(&pdev->dev,
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res_tsens_mem);
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if (IS_ERR(tmdev->tsens_calib_addr)) {
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dev_err(&pdev->dev, "Failed to IO map TSENS EEPROM registers.\n");
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rc = PTR_ERR(tmdev->tsens_calib_addr);
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} else {
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rc = tsens_calib(tmdev);
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if (rc) {
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pr_err("Error initializing TSENS controller\n");
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return rc;
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}
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}
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}
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tmdev->tsens_reinit_wa =
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of_property_read_bool(of_node, "tsens-reinit-wa");
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return rc;
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}
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static int tsens_thermal_zone_register(struct tsens_device *tmdev)
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{
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int i = 0, sensor_missing = 0;
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for (i = 0; i < TSENS_MAX_SENSORS; i++) {
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tmdev->sensor[i].tmdev = tmdev;
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tmdev->sensor[i].hw_id = i;
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if (tmdev->ops->sensor_en(tmdev, i)) {
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tmdev->sensor[i].tzd =
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devm_thermal_zone_of_sensor_register(
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&tmdev->pdev->dev, i,
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&tmdev->sensor[i], &tsens_tm_thermal_zone_ops);
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if (IS_ERR(tmdev->sensor[i].tzd)) {
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pr_debug("Error registering sensor:%d\n", i);
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sensor_missing++;
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continue;
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}
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} else {
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pr_debug("Sensor not enabled:%d\n", i);
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}
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}
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if (sensor_missing == TSENS_MAX_SENSORS) {
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pr_err("No TSENS sensors to register?\n");
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return -ENODEV;
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}
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/* Register virtual thermal sensors. */
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qti_virtual_sensor_register(&tmdev->pdev->dev);
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return 0;
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}
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static int tsens_tm_remove(struct platform_device *pdev)
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{
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platform_set_drvdata(pdev, NULL);
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#if CONFIG_SEC_PM_DEBUG
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cancel_delayed_work_sync(&ts_print_work);
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#endif
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return 0;
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}
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static void tsens_therm_fwk_notify(struct work_struct *work)
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{
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int i, rc, temp;
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struct tsens_device *tmdev =
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container_of(work, struct tsens_device, therm_fwk_notify);
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TSENS_DBG(tmdev, "Controller %pK\n", &tmdev->phys_addr_tm);
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for (i = 0; i < TSENS_MAX_SENSORS; i++) {
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if (tmdev->ops->sensor_en(tmdev, i)) {
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rc = tsens_get_temp(&tmdev->sensor[i], &temp);
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if (rc) {
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pr_err("%s: Error:%d reading temp sensor:%d\n",
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__func__, rc, i);
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continue;
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}
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TSENS_DBG(tmdev, "Calling trip_temp for sensor %d\n",
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i);
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of_thermal_handle_trip(tmdev->sensor[i].tzd);
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}
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}
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}
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#if defined(CONFIG_SEC_PM)
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static void __ref ts_print(struct work_struct *work)
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{
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struct tsens_sensor ts_sensor;
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int temp = 0;
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size_t i;
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int added = 0, ret = 0;
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char buffer[500] = { 0, };
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ret = snprintf(buffer + added, sizeof(buffer) - added, "tsens");
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added += ret;
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/* SM7150,SM7125 */
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#if defined (CONFIG_ARCH_SEC_SM7150) || defined (CONFIG_ARCH_ATOLL)
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/* print tsens0 (controller 0) */
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ts_sensor.tmdev = ts_tmdev0;
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for (i = 0; i < (sizeof(ts_print_num_a) / sizeof(int)); i++) {
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ts_sensor = ts_tmdev0->sensor[ts_print_num_a[i]];
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tsens_get_temp(&ts_sensor, &temp);
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ret = snprintf(buffer + added, sizeof(buffer) - added,
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"[%d:%d]", ts_print_num_a[i], temp/100);
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added += ret;
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}
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/* print tsens0 (controller 1) */
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ts_sensor.tmdev = ts_tmdev1;
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for (i = 0; i < (sizeof(ts_print_num_b) / sizeof(int)); i++) {
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ts_sensor = ts_tmdev1->sensor[ts_print_num_b[i]];
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tsens_get_temp(&ts_sensor, &temp);
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ret = snprintf(buffer + added, sizeof(buffer) - added,
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"[%d:%d]", ts_print_num_b[i] + 15, temp/100);
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added += ret;
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}
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/* SM6150 */
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#else
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ts_sensor.tmdev = ts_tmdev;
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for (i = 0; i < (sizeof(ts_print_num) / sizeof(int)); i++) {
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ts_sensor = ts_tmdev->sensor[ts_print_num[i]];
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tsens_get_temp(&ts_sensor, &temp);
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ret = snprintf(buffer + added, sizeof(buffer) - added,
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"[%d:%d]", ts_print_num[i], temp/100);
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added += ret;
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}
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#endif
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pr_info("%s\n", buffer);
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schedule_delayed_work(&ts_print_work, HZ * 5);
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}
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#endif
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int tsens_tm_probe(struct platform_device *pdev)
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{
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struct tsens_device *tmdev = NULL;
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int rc;
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char tsens_name[40];
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if (!(pdev->dev.of_node))
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return -ENODEV;
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tmdev = devm_kzalloc(&pdev->dev,
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sizeof(struct tsens_device) +
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TSENS_MAX_SENSORS *
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sizeof(struct tsens_sensor),
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GFP_KERNEL);
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if (tmdev == NULL)
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return -ENOMEM;
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rc = get_device_tree_data(pdev, tmdev);
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if (rc) {
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pr_err("Error reading TSENS DT\n");
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return rc;
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}
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rc = tsens_init(tmdev);
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if (rc) {
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pr_err("Error initializing TSENS controller\n");
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return rc;
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}
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snprintf(tsens_name, sizeof(tsens_name), "tsens_wq_%pa",
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&tmdev->phys_addr_tm);
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tmdev->tsens_reinit_work = alloc_workqueue(tsens_name,
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WQ_HIGHPRI, 0);
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if (!tmdev->tsens_reinit_work) {
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rc = -ENOMEM;
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return rc;
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}
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INIT_WORK(&tmdev->therm_fwk_notify, tsens_therm_fwk_notify);
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rc = tsens_thermal_zone_register(tmdev);
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if (rc) {
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pr_err("Error registering the thermal zone\n");
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return rc;
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}
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rc = tsens_register_interrupts(tmdev);
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if (rc < 0) {
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pr_err("TSENS interrupt register failed:%d\n", rc);
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return rc;
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}
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snprintf(tsens_name, sizeof(tsens_name), "tsens_%pa_0",
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&tmdev->phys_addr_tm);
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tmdev->ipc_log0 = ipc_log_context_create(IPC_LOGPAGES,
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tsens_name, 0);
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if (!tmdev->ipc_log0)
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pr_err("%s : unable to create IPC Logging 0 for tsens %pa",
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__func__, &tmdev->phys_addr_tm);
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snprintf(tsens_name, sizeof(tsens_name), "tsens_%pa_1",
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&tmdev->phys_addr_tm);
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tmdev->ipc_log1 = ipc_log_context_create(IPC_LOGPAGES,
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tsens_name, 0);
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if (!tmdev->ipc_log1)
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pr_err("%s : unable to create IPC Logging 1 for tsens %pa",
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__func__, &tmdev->phys_addr_tm);
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snprintf(tsens_name, sizeof(tsens_name), "tsens_%pa_2",
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&tmdev->phys_addr_tm);
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tmdev->ipc_log2 = ipc_log_context_create(IPC_LOGPAGES,
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tsens_name, 0);
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if (!tmdev->ipc_log2)
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pr_err("%s : unable to create IPC Logging 2 for tsens %pa",
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__func__, &tmdev->phys_addr_tm);
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list_add_tail(&tmdev->list, &tsens_device_list);
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platform_set_drvdata(pdev, tmdev);
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#if defined(CONFIG_SEC_PM)
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/* SM7150 SM7125 */
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#if defined (CONFIG_ARCH_SEC_SM7150) || defined (CONFIG_ARCH_ATOLL)
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if (!strncmp(tmdev->pdev->name, "c222000", 7)) {
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ts_tmdev0 = tmdev;
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} else if (!strncmp(tmdev->pdev->name, "c223000", 7)) {
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ts_tmdev1 = tmdev;
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}
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if (ts_print_count == 0 && ts_tmdev1 != NULL) {
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INIT_DELAYED_WORK(&ts_print_work, ts_print);
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schedule_delayed_work(&ts_print_work, 0);
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ts_print_count++;
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}
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/* SM6150 */
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#else
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if (ts_print_count == 0) {
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ts_tmdev = tmdev;
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INIT_DELAYED_WORK(&ts_print_work, ts_print);
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schedule_delayed_work(&ts_print_work, 0);
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ts_print_count++;
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}
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#endif
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#endif
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return rc;
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}
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static struct platform_driver tsens_tm_driver = {
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.probe = tsens_tm_probe,
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.remove = tsens_tm_remove,
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.driver = {
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.name = "msm-tsens",
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.owner = THIS_MODULE,
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.of_match_table = tsens_table,
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},
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};
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int __init tsens_tm_init_driver(void)
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{
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return platform_driver_register(&tsens_tm_driver);
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}
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subsys_initcall(tsens_tm_init_driver);
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static void __exit tsens_tm_deinit(void)
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{
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platform_driver_unregister(&tsens_tm_driver);
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}
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module_exit(tsens_tm_deinit);
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MODULE_ALIAS("platform:" TSENS_DRIVER_NAME);
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MODULE_LICENSE("GPL v2");
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