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![Linus Torvalds](/assets/img/avatar_default.png)
- Thermal framework cleanups (self-encapsulation, pointless stubs, private structures) (Daniel Lezcano) - Use the PM QoS frequency changes for the devfreq cooling device (Matthias Kaehlcke) - Remove duplicate error messages from platform_get_irq() error handling (Markus Elfring) - Add support for the bandgap sensors (Keerthy) - Statically initialize .get_mode/.set_mode ops (Andrzej Pietrasiewicz) - Add Renesas R-Car maintainer entry (Niklas Söderlund) - Fix error checking after calling ti_bandgap_get_sensor_data() for the TI SoC thermal (Sudip Mukherjee) - Add latency constraint for the idle injection, the DT binding and the change the registering function (Daniel Lezcano) - Convert the thermal framework binding to the Yaml schema (Amit Kucheria) - Replace zero-length array with flexible-array on i.MX 8MM (Gustavo A. R. Silva) - Thermal framework cleanups (alphabetic order for heads, replace module.h by export.h, make file naming consistent) (Amit Kucheria) - Merge tsens-common into the tsens driver (Amit Kucheria) - Fix platform dependency for the Qoriq driver (Geert Uytterhoeven) - Clean up the rcar_thermal_update_temp() function in the rcar thermal driver (Niklas Söderlund) - Fix the TMSAR register for the TMUv2 on the Qoriq platform (Yuantian Tang) - Export GDDV, OEM vendor variables, and don't require IDSP for the int340x thermal driver - trivial conflicts fixed (Matthew Garrett) -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEGn3N4YVz0WNVyHskqDIjiipP6E8FAl7jra8ACgkQqDIjiipP 6E+ugAgApBF6FsHoonWIvoSrzBrrbU2oqhEJA42Mx+iY/UnXi01I79vZ/8WpZt7M D1J01Kf0PUhRbywoKaoCX3Oh9ZO9PKq4N9ZC8yqdoD6GLl+rC9Wmr7Ui+c80klcv M9rYhpPYfNXTFj0saSbbFWNNhP4TvhzGsNj8foYVQDKyhjbSmNE5ipZlbmP23jlr O53SmJAwS5zxLOd8QA5nfSWP9FYYMuCR2AHj8BUCmxiAjXZLPNB/Hz2RRBr7q0MF zRo/4HJ04mSQYp0kluP/EBhz9g2wM/htIPyWRveB/ByKEYt3UNKjB++PJmPbu5UG dS3aXZhRfaPqpdsWrMB9fY7ll+oyfw== =T+RI -----END PGP SIGNATURE----- Merge tag 'thermal-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal updates from Daniel Lezcano: - Add the hwmon support on the i.MX SC (Anson Huang) - Thermal framework cleanups (self-encapsulation, pointless stubs, private structures) (Daniel Lezcano) - Use the PM QoS frequency changes for the devfreq cooling device (Matthias Kaehlcke) - Remove duplicate error messages from platform_get_irq() error handling (Markus Elfring) - Add support for the bandgap sensors (Keerthy) - Statically initialize .get_mode/.set_mode ops (Andrzej Pietrasiewicz) - Add Renesas R-Car maintainer entry (Niklas Söderlund) - Fix error checking after calling ti_bandgap_get_sensor_data() for the TI SoC thermal (Sudip Mukherjee) - Add latency constraint for the idle injection, the DT binding and the change the registering function (Daniel Lezcano) - Convert the thermal framework binding to the Yaml schema (Amit Kucheria) - Replace zero-length array with flexible-array on i.MX 8MM (Gustavo A. R. Silva) - Thermal framework cleanups (alphabetic order for heads, replace module.h by export.h, make file naming consistent) (Amit Kucheria) - Merge tsens-common into the tsens driver (Amit Kucheria) - Fix platform dependency for the Qoriq driver (Geert Uytterhoeven) - Clean up the rcar_thermal_update_temp() function in the rcar thermal driver (Niklas Söderlund) - Fix the TMSAR register for the TMUv2 on the Qoriq platform (Yuantian Tang) - Export GDDV, OEM vendor variables, and don't require IDSP for the int340x thermal driver - trivial conflicts fixed (Matthew Garrett) * tag 'thermal-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (48 commits) thermal/int340x_thermal: Don't require IDSP to exist thermal/int340x_thermal: Export OEM vendor variables thermal/int340x_thermal: Export GDDV thermal: qoriq: Update the settings for TMUv2 thermal: rcar_thermal: Clean up rcar_thermal_update_temp() thermal: qoriq: Add platform dependencies drivers: thermal: tsens: Merge tsens-common.c into tsens.c thermal/of: Rename of-thermal.c thermal/governors: Prefix all source files with gov_ thermal/drivers/user_space: Sort headers alphabetically thermal/drivers/of-thermal: Sort headers alphabetically thermal/drivers/cpufreq_cooling: Replace module.h with export.h thermal/drivers/cpufreq_cooling: Sort headers alphabetically thermal/drivers/clock_cooling: Include export.h thermal/drivers/clock_cooling: Sort headers alphabetically thermal/drivers/thermal_hwmon: Include export.h thermal/drivers/thermal_hwmon: Sort headers alphabetically thermal/drivers/thermal_helpers: Include export.h thermal/drivers/thermal_helpers: Sort headers alphabetically thermal/core: Replace module.h with export.h ...
152 lines
3.4 KiB
C
152 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2018-2020 NXP.
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*/
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#include <dt-bindings/firmware/imx/rsrc.h>
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#include <linux/err.h>
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#include <linux/firmware/imx/sci.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.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 "thermal_hwmon.h"
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#define IMX_SC_MISC_FUNC_GET_TEMP 13
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static struct imx_sc_ipc *thermal_ipc_handle;
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struct imx_sc_sensor {
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struct thermal_zone_device *tzd;
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u32 resource_id;
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};
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struct req_get_temp {
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u16 resource_id;
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u8 type;
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} __packed __aligned(4);
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struct resp_get_temp {
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s16 celsius;
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s8 tenths;
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} __packed __aligned(4);
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struct imx_sc_msg_misc_get_temp {
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struct imx_sc_rpc_msg hdr;
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union {
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struct req_get_temp req;
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struct resp_get_temp resp;
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} data;
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} __packed __aligned(4);
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static int imx_sc_thermal_get_temp(void *data, int *temp)
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{
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struct imx_sc_msg_misc_get_temp msg;
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struct imx_sc_rpc_msg *hdr = &msg.hdr;
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struct imx_sc_sensor *sensor = data;
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int ret;
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msg.data.req.resource_id = sensor->resource_id;
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msg.data.req.type = IMX_SC_C_TEMP;
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hdr->ver = IMX_SC_RPC_VERSION;
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hdr->svc = IMX_SC_RPC_SVC_MISC;
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hdr->func = IMX_SC_MISC_FUNC_GET_TEMP;
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hdr->size = 2;
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ret = imx_scu_call_rpc(thermal_ipc_handle, &msg, true);
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if (ret) {
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dev_err(&sensor->tzd->device, "read temp sensor %d failed, ret %d\n",
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sensor->resource_id, ret);
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return ret;
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}
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*temp = msg.data.resp.celsius * 1000 + msg.data.resp.tenths * 100;
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return 0;
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}
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static const struct thermal_zone_of_device_ops imx_sc_thermal_ops = {
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.get_temp = imx_sc_thermal_get_temp,
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};
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static int imx_sc_thermal_probe(struct platform_device *pdev)
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{
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struct device_node *np, *child, *sensor_np;
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struct imx_sc_sensor *sensor;
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int ret;
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ret = imx_scu_get_handle(&thermal_ipc_handle);
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if (ret)
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return ret;
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np = of_find_node_by_name(NULL, "thermal-zones");
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if (!np)
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return -ENODEV;
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sensor_np = of_node_get(pdev->dev.of_node);
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for_each_available_child_of_node(np, child) {
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sensor = devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL);
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if (!sensor) {
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of_node_put(sensor_np);
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return -ENOMEM;
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}
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ret = thermal_zone_of_get_sensor_id(child,
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sensor_np,
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&sensor->resource_id);
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if (ret < 0) {
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dev_err(&pdev->dev,
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"failed to get valid sensor resource id: %d\n",
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ret);
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break;
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}
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sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev,
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sensor->resource_id,
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sensor,
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&imx_sc_thermal_ops);
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if (IS_ERR(sensor->tzd)) {
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dev_err(&pdev->dev, "failed to register thermal zone\n");
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ret = PTR_ERR(sensor->tzd);
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break;
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}
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if (devm_thermal_add_hwmon_sysfs(sensor->tzd))
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dev_warn(&pdev->dev, "failed to add hwmon sysfs attributes\n");
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}
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of_node_put(sensor_np);
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return ret;
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}
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static int imx_sc_thermal_remove(struct platform_device *pdev)
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{
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return 0;
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}
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static const struct of_device_id imx_sc_thermal_table[] = {
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{ .compatible = "fsl,imx-sc-thermal", },
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{}
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};
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MODULE_DEVICE_TABLE(of, imx_sc_thermal_table);
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static struct platform_driver imx_sc_thermal_driver = {
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.probe = imx_sc_thermal_probe,
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.remove = imx_sc_thermal_remove,
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.driver = {
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.name = "imx-sc-thermal",
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.of_match_table = imx_sc_thermal_table,
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},
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};
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module_platform_driver(imx_sc_thermal_driver);
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MODULE_AUTHOR("Anson Huang <Anson.Huang@nxp.com>");
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MODULE_DESCRIPTION("Thermal driver for NXP i.MX SoCs with system controller");
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MODULE_LICENSE("GPL v2");
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