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authorLinus Torvalds <torvalds@linux-foundation.org>2020-04-07 20:00:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-07 20:00:16 -0700
commit34183ddd13dbfa859c4b68d16a30aad2cce72b11 (patch)
treebb32ff408c71c834352a9bdf1e7969c12cc91976 /drivers
parent8645f09bad14df3776484b44933a41c446343087 (diff)
parent11700fcb90b40a38fbfba55b2bedfc9909be8ec8 (diff)
downloadlinux-34183ddd13dbfa859c4b68d16a30aad2cce72b11.tar.bz2
Merge tag 'thermal-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal updates from Daniel Lezcano: - Convert tsens configuration DT binding to yaml (Rajeshwari) - Add interrupt support on the rcar sensor (Niklas Söderlund) - Add a new Spreadtrum thermal driver (Baolin Wang) - Add thermal binding for the fsl scu board, a new API to retrieve the sensor id bound to the thermal zone and i.MX system controller sensor (Anson Huang)) - Remove warning log when a deferred probe is requested on Exynos (Marek Szyprowski) - Add the thermal monitoring unit support for imx8mm with its DT bindings (Anson Huang) - Rephrase the Kconfig text for clarity (Linus Walleij) - Use the gpio descriptor for the ti-soc-thermal (Linus Walleij) - Align msg structure to 4 bytes for i.MX SC, fix the Kconfig dependency, add the __may_be unused annotation for PM functions and the COMPILE_TEST option for imx8mm (Anson Huang) - Fix a dependency on regmap in Kconfig for qoriq (Yuantian Tang) - Add DT binding and support for the rcar gen3 r8a77961 and improve the error path on the rcar init function (Niklas Söderlund) - Cleanup and improvements for the tsens Qcom sensor (Amit Kucheria) - Improve code by removing lock and caching values in the rcar thermal sensor (Niklas Söderlund) - Cleanup in the qoriq drivers and add a call to imx_thermal_unregister_legacy_cooling in the removal function (Anson Huang) - Remove redundant 'maxItems' in tsens and sprd DT bindings (Rob Herring) - Change the thermal DT bindings by making the cooling-maps optional (Yuantian Tang) - Add Tiger Lake support (Sumeet Pawnikar) - Use scnprintf() for avoiding potential buffer overflow (Takashi Iwai) - Make pkg_temp_lock a raw_spinlock_t(Clark Williams) - Fix incorrect data types by changing them to signed on i.MX SC (Anson Huang) - Replace zero-length array with flexible-array member (Gustavo A. R. Silva) - Add support for i.MX8MP in the driver and in the DT bindings (Anson Huang) - Fix return value of the cpufreq_set_cur_state() function (Willy Wolff) - Remove abusing and scary WARN_ON in the cpufreq cooling device (Daniel Lezcano) - Fix build warning of incorrect argument type reported by sparse on imx8mm (Anson Huang) - Fix stub for the devfreq cooling device (Martin Blumenstingl) - Fix cpu idle cooling documentation (Sergey Vidishev) * tag 'thermal-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (52 commits) Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycle thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=n thermal: imx8mm: Fix build warning of incorrect argument type thermal/drivers/cpufreq_cooling: Remove abusing WARN_ON thermal/drivers/cpufreq_cooling: Fix return of cpufreq_set_cur_state thermal: imx8mm: Add i.MX8MP support dt-bindings: thermal: imx8mm-thermal: Add support for i.MX8MP thermal: qcom: tsens.h: Replace zero-length array with flexible-array member thermal: imx_sc_thermal: Fix incorrect data type thermal: int340x_thermal: Use scnprintf() for avoiding potential buffer overflow thermal: int340x: processor_thermal: Add Tiger Lake support thermal/x86_pkg_temp: Make pkg_temp_lock a raw_spinlock_t dt-bindings: thermal: make cooling-maps property optional dt-bindings: thermal: qcom-tsens: Remove redundant 'maxItems' dt-bindings: thermal: sprd: Remove redundant 'maxItems' thermal: imx: Calling imx_thermal_unregister_legacy_cooling() in .remove thermal: qoriq: Sort includes alphabetically thermal: qoriq: Use devm_add_action_or_reset() to handle all cleanups thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp() thermal: rcar_thermal: Do not store ctemp in rcar_thermal_priv ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/thermal/Kconfig42
-rw-r--r--drivers/thermal/Makefile3
-rw-r--r--drivers/thermal/cpufreq_cooling.c5
-rw-r--r--drivers/thermal/imx8mm_thermal.c236
-rw-r--r--drivers/thermal/imx_sc_thermal.c148
-rw-r--r--drivers/thermal/imx_thermal.c16
-rw-r--r--drivers/thermal/intel/int340x_thermal/int3400_thermal.c2
-rw-r--r--drivers/thermal/intel/int340x_thermal/processor_thermal_device.c5
-rw-r--r--drivers/thermal/of-thermal.c62
-rw-r--r--drivers/thermal/qcom/tsens-8960.c4
-rw-r--r--drivers/thermal/qcom/tsens-common.c194
-rw-r--r--drivers/thermal/qcom/tsens-v0_1.c6
-rw-r--r--drivers/thermal/qcom/tsens-v1.c6
-rw-r--r--drivers/thermal/qcom/tsens-v2.c24
-rw-r--r--drivers/thermal/qcom/tsens.c65
-rw-r--r--drivers/thermal/qcom/tsens.h105
-rw-r--r--drivers/thermal/qoriq_thermal.c40
-rw-r--r--drivers/thermal/rcar_gen3_thermal.c31
-rw-r--r--drivers/thermal/rcar_thermal.c53
-rw-r--r--drivers/thermal/samsung/exynos_tmu.c4
-rw-r--r--drivers/thermal/sprd_thermal.c552
-rw-r--r--drivers/thermal/st/stm_thermal.c3
-rw-r--r--drivers/thermal/ti-soc-thermal/ti-bandgap.c44
-rw-r--r--drivers/thermal/ti-soc-thermal/ti-bandgap.h4
24 files changed, 1435 insertions, 219 deletions
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 5a05db5438d6..91af271e9bb0 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -1,17 +1,18 @@
# SPDX-License-Identifier: GPL-2.0-only
#
-# Generic thermal sysfs drivers configuration
+# Generic thermal drivers configuration
#
menuconfig THERMAL
- bool "Generic Thermal sysfs driver"
+ bool "Thermal drivers"
help
- Generic Thermal Sysfs driver offers a generic mechanism for
+ Thermal drivers offer a generic mechanism for
thermal management. Usually it's made up of one or more thermal
- zone and cooling device.
+ zones and cooling devices.
Each thermal zone contains its own temperature, trip points,
- cooling devices.
- All platforms with ACPI thermal support can use this driver.
+ and cooling devices.
+ All platforms with ACPI or Open Firmware thermal support can use
+ this driver.
If you want this support, you should say Y here.
if THERMAL
@@ -251,6 +252,27 @@ config IMX_THERMAL
cpufreq is used as the cooling device to throttle CPUs when the
passive trip is crossed.
+config IMX_SC_THERMAL
+ tristate "Temperature sensor driver for NXP i.MX SoCs with System Controller"
+ depends on IMX_SCU
+ depends on OF
+ help
+ Support for Temperature Monitor (TEMPMON) found on NXP i.MX SoCs with
+ system controller inside, Linux kernel has to communicate with system
+ controller via MU (message unit) IPC to get temperature from thermal
+ sensor. It supports one critical trip point and one
+ passive trip point for each thermal sensor.
+
+config IMX8MM_THERMAL
+ tristate "Temperature sensor driver for Freescale i.MX8MM SoC"
+ depends on ARCH_MXC || COMPILE_TEST
+ depends on OF
+ help
+ Support for Thermal Monitoring Unit (TMU) found on Freescale i.MX8MM SoC.
+ It supports one critical trip point and one passive trip point. The
+ cpufreq is used as the cooling device to throttle CPUs when the passive
+ trip is crossed.
+
config MAX77620_THERMAL
tristate "Temperature sensor driver for Maxim MAX77620 PMIC"
depends on MFD_MAX77620
@@ -265,6 +287,7 @@ config QORIQ_THERMAL
tristate "QorIQ Thermal Monitoring Unit"
depends on THERMAL_OF
depends on HAS_IOMEM
+ select REGMAP_MMIO
help
Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms.
It supports one critical trip point and one passive trip point. The
@@ -460,4 +483,11 @@ config UNIPHIER_THERMAL
Enable this to plug in UniPhier on-chip PVT thermal driver into the
thermal framework. The driver supports CPU thermal zone temperature
reporting and a couple of trip points.
+
+config SPRD_THERMAL
+ tristate "Temperature sensor on Spreadtrum SoCs"
+ depends on ARCH_SPRD || COMPILE_TEST
+ help
+ Support for the Spreadtrum thermal sensor driver in the Linux thermal
+ framework.
endif
diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index 9fb88e26fb10..8c8ed7b79915 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -43,6 +43,8 @@ obj-$(CONFIG_DB8500_THERMAL) += db8500_thermal.o
obj-$(CONFIG_ARMADA_THERMAL) += armada_thermal.o
obj-$(CONFIG_TANGO_THERMAL) += tango_thermal.o
obj-$(CONFIG_IMX_THERMAL) += imx_thermal.o
+obj-$(CONFIG_IMX_SC_THERMAL) += imx_sc_thermal.o
+obj-$(CONFIG_IMX8MM_THERMAL) += imx8mm_thermal.o
obj-$(CONFIG_MAX77620_THERMAL) += max77620_thermal.o
obj-$(CONFIG_QORIQ_THERMAL) += qoriq_thermal.o
obj-$(CONFIG_DA9062_THERMAL) += da9062-thermal.o
@@ -57,3 +59,4 @@ obj-$(CONFIG_GENERIC_ADC_THERMAL) += thermal-generic-adc.o
obj-$(CONFIG_ZX2967_THERMAL) += zx2967_thermal.o
obj-$(CONFIG_UNIPHIER_THERMAL) += uniphier_thermal.o
obj-$(CONFIG_AMLOGIC_THERMAL) += amlogic_thermal.o
+obj-$(CONFIG_SPRD_THERMAL) += sprd_thermal.o
diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c
index 4ae8c856c88e..e297e135c031 100644
--- a/drivers/thermal/cpufreq_cooling.c
+++ b/drivers/thermal/cpufreq_cooling.c
@@ -273,7 +273,7 @@ static int cpufreq_state2power(struct thermal_cooling_device *cdev,
struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
/* Request state should be less than max_level */
- if (WARN_ON(state > cpufreq_cdev->max_level))
+ if (state > cpufreq_cdev->max_level)
return -EINVAL;
num_cpus = cpumask_weight(cpufreq_cdev->policy->cpus);
@@ -437,7 +437,7 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
int ret;
/* Request state should be less than max_level */
- if (WARN_ON(state > cpufreq_cdev->max_level))
+ if (state > cpufreq_cdev->max_level)
return -EINVAL;
/* Check if the old cooling action is same as new cooling action */
@@ -456,6 +456,7 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
capacity = frequency * max_capacity;
capacity /= cpufreq_cdev->policy->cpuinfo.max_freq;
arch_set_thermal_pressure(cpus, max_capacity - capacity);
+ ret = 0;
}
return ret;
diff --git a/drivers/thermal/imx8mm_thermal.c b/drivers/thermal/imx8mm_thermal.c
new file mode 100644
index 000000000000..0d60f8d7894f
--- /dev/null
+++ b/drivers/thermal/imx8mm_thermal.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020 NXP.
+ *
+ * Author: Anson Huang <Anson.Huang@nxp.com>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/thermal.h>
+
+#include "thermal_core.h"
+
+#define TER 0x0 /* TMU enable */
+#define TPS 0x4
+#define TRITSR 0x20 /* TMU immediate temp */
+
+#define TER_EN BIT(31)
+#define TRITSR_TEMP0_VAL_MASK 0xff
+#define TRITSR_TEMP1_VAL_MASK 0xff0000
+
+#define PROBE_SEL_ALL GENMASK(31, 30)
+
+#define probe_status_offset(x) (30 + x)
+#define SIGN_BIT BIT(7)
+#define TEMP_VAL_MASK GENMASK(6, 0)
+
+#define VER1_TEMP_LOW_LIMIT 10000
+#define VER2_TEMP_LOW_LIMIT -40000
+#define VER2_TEMP_HIGH_LIMIT 125000
+
+#define TMU_VER1 0x1
+#define TMU_VER2 0x2
+
+struct thermal_soc_data {
+ u32 num_sensors;
+ u32 version;
+ int (*get_temp)(void *, int *);
+};
+
+struct tmu_sensor {
+ struct imx8mm_tmu *priv;
+ u32 hw_id;
+ struct thermal_zone_device *tzd;
+};
+
+struct imx8mm_tmu {
+ void __iomem *base;
+ struct clk *clk;
+ const struct thermal_soc_data *socdata;
+ struct tmu_sensor sensors[0];
+};
+
+static int imx8mm_tmu_get_temp(void *data, int *temp)
+{
+ struct tmu_sensor *sensor = data;
+ struct imx8mm_tmu *tmu = sensor->priv;
+ u32 val;
+
+ val = readl_relaxed(tmu->base + TRITSR) & TRITSR_TEMP0_VAL_MASK;
+ *temp = val * 1000;
+ if (*temp < VER1_TEMP_LOW_LIMIT)
+ return -EAGAIN;
+
+ return 0;
+}
+
+static int imx8mp_tmu_get_temp(void *data, int *temp)
+{
+ struct tmu_sensor *sensor = data;
+ struct imx8mm_tmu *tmu = sensor->priv;
+ unsigned long val;
+ bool ready;
+
+ val = readl_relaxed(tmu->base + TRITSR);
+ ready = test_bit(probe_status_offset(sensor->hw_id), &val);
+ if (!ready)
+ return -EAGAIN;
+
+ val = sensor->hw_id ? FIELD_GET(TRITSR_TEMP1_VAL_MASK, val) :
+ FIELD_GET(TRITSR_TEMP0_VAL_MASK, val);
+ if (val & SIGN_BIT) /* negative */
+ val = (~(val & TEMP_VAL_MASK) + 1);
+
+ *temp = val * 1000;
+ if (*temp < VER2_TEMP_LOW_LIMIT || *temp > VER2_TEMP_HIGH_LIMIT)
+ return -EAGAIN;
+
+ return 0;
+}
+
+static int tmu_get_temp(void *data, int *temp)
+{
+ struct tmu_sensor *sensor = data;
+ struct imx8mm_tmu *tmu = sensor->priv;
+
+ return tmu->socdata->get_temp(data, temp);
+}
+
+static struct thermal_zone_of_device_ops tmu_tz_ops = {
+ .get_temp = tmu_get_temp,
+};
+
+static void imx8mm_tmu_enable(struct imx8mm_tmu *tmu, bool enable)
+{
+ u32 val;
+
+ val = readl_relaxed(tmu->base + TER);
+ val = enable ? (val | TER_EN) : (val & ~TER_EN);
+ writel_relaxed(val, tmu->base + TER);
+}
+
+static void imx8mm_tmu_probe_sel_all(struct imx8mm_tmu *tmu)
+{
+ u32 val;
+
+ val = readl_relaxed(tmu->base + TPS);
+ val |= PROBE_SEL_ALL;
+ writel_relaxed(val, tmu->base + TPS);
+}
+
+static int imx8mm_tmu_probe(struct platform_device *pdev)
+{
+ const struct thermal_soc_data *data;
+ struct imx8mm_tmu *tmu;
+ int ret;
+ int i;
+
+ data = of_device_get_match_data(&pdev->dev);
+
+ tmu = devm_kzalloc(&pdev->dev, struct_size(tmu, sensors,
+ data->num_sensors), GFP_KERNEL);
+ if (!tmu)
+ return -ENOMEM;
+
+ tmu->socdata = data;
+
+ tmu->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(tmu->base))
+ return PTR_ERR(tmu->base);
+
+ tmu->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(tmu->clk)) {
+ ret = PTR_ERR(tmu->clk);
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev,
+ "failed to get tmu clock: %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(tmu->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to enable tmu clock: %d\n", ret);
+ return ret;
+ }
+
+ /* disable the monitor during initialization */
+ imx8mm_tmu_enable(tmu, false);
+
+ for (i = 0; i < data->num_sensors; i++) {
+ tmu->sensors[i].priv = tmu;
+ tmu->sensors[i].tzd =
+ devm_thermal_zone_of_sensor_register(&pdev->dev, i,
+ &tmu->sensors[i],
+ &tmu_tz_ops);
+ if (IS_ERR(tmu->sensors[i].tzd)) {
+ dev_err(&pdev->dev,
+ "failed to register thermal zone sensor[%d]: %d\n",
+ i, ret);
+ return PTR_ERR(tmu->sensors[i].tzd);
+ }
+ tmu->sensors[i].hw_id = i;
+ }
+
+ platform_set_drvdata(pdev, tmu);
+
+ /* enable all the probes for V2 TMU */
+ if (tmu->socdata->version == TMU_VER2)
+ imx8mm_tmu_probe_sel_all(tmu);
+
+ /* enable the monitor */
+ imx8mm_tmu_enable(tmu, true);
+
+ return 0;
+}
+
+static int imx8mm_tmu_remove(struct platform_device *pdev)
+{
+ struct imx8mm_tmu *tmu = platform_get_drvdata(pdev);
+
+ /* disable TMU */
+ imx8mm_tmu_enable(tmu, false);
+
+ clk_disable_unprepare(tmu->clk);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct thermal_soc_data imx8mm_tmu_data = {
+ .num_sensors = 1,
+ .version = TMU_VER1,
+ .get_temp = imx8mm_tmu_get_temp,
+};
+
+static struct thermal_soc_data imx8mp_tmu_data = {
+ .num_sensors = 2,
+ .version = TMU_VER2,
+ .get_temp = imx8mp_tmu_get_temp,
+};
+
+static const struct of_device_id imx8mm_tmu_table[] = {
+ { .compatible = "fsl,imx8mm-tmu", .data = &imx8mm_tmu_data, },
+ { .compatible = "fsl,imx8mp-tmu", .data = &imx8mp_tmu_data, },
+ { },
+};
+
+static struct platform_driver imx8mm_tmu = {
+ .driver = {
+ .name = "i.mx8mm_thermal",
+ .of_match_table = imx8mm_tmu_table,
+ },
+ .probe = imx8mm_tmu_probe,
+ .remove = imx8mm_tmu_remove,
+};
+module_platform_driver(imx8mm_tmu);
+
+MODULE_AUTHOR("Anson Huang <Anson.Huang@nxp.com>");
+MODULE_DESCRIPTION("i.MX8MM Thermal Monitor Unit driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c
new file mode 100644
index 000000000000..a8723b1eb8b0
--- /dev/null
+++ b/drivers/thermal/imx_sc_thermal.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018-2020 NXP.
+ */
+
+#include <linux/err.h>
+#include <linux/firmware/imx/sci.h>
+#include <linux/firmware/imx/types.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/thermal.h>
+
+#include "thermal_core.h"
+
+#define IMX_SC_MISC_FUNC_GET_TEMP 13
+
+static struct imx_sc_ipc *thermal_ipc_handle;
+
+struct imx_sc_sensor {
+ struct thermal_zone_device *tzd;
+ u32 resource_id;
+};
+
+struct req_get_temp {
+ u16 resource_id;
+ u8 type;
+} __packed __aligned(4);
+
+struct resp_get_temp {
+ s16 celsius;
+ s8 tenths;
+} __packed __aligned(4);
+
+struct imx_sc_msg_misc_get_temp {
+ struct imx_sc_rpc_msg hdr;
+ union {
+ struct req_get_temp req;
+ struct resp_get_temp resp;
+ } data;
+} __packed __aligned(4);
+
+static int imx_sc_thermal_get_temp(void *data, int *temp)
+{
+ struct imx_sc_msg_misc_get_temp msg;
+ struct imx_sc_rpc_msg *hdr = &msg.hdr;
+ struct imx_sc_sensor *sensor = data;
+ int ret;
+
+ msg.data.req.resource_id = sensor->resource_id;
+ msg.data.req.type = IMX_SC_C_TEMP;
+
+ hdr->ver = IMX_SC_RPC_VERSION;
+ hdr->svc = IMX_SC_RPC_SVC_MISC;
+ hdr->func = IMX_SC_MISC_FUNC_GET_TEMP;
+ hdr->size = 2;
+
+ ret = imx_scu_call_rpc(thermal_ipc_handle, &msg, true);
+ if (ret) {
+ dev_err(&sensor->tzd->device, "read temp sensor %d failed, ret %d\n",
+ sensor->resource_id, ret);
+ return ret;
+ }
+
+ *temp = msg.data.resp.celsius * 1000 + msg.data.resp.tenths * 100;
+
+ return 0;
+}
+
+static const struct thermal_zone_of_device_ops imx_sc_thermal_ops = {
+ .get_temp = imx_sc_thermal_get_temp,
+};
+
+static int imx_sc_thermal_probe(struct platform_device *pdev)
+{
+ struct device_node *np, *child, *sensor_np;
+ struct imx_sc_sensor *sensor;
+ int ret;
+
+ ret = imx_scu_get_handle(&thermal_ipc_handle);
+ if (ret)
+ return ret;
+
+ np = of_find_node_by_name(NULL, "thermal-zones");
+ if (!np)
+ return -ENODEV;
+
+ sensor_np = of_node_get(pdev->dev.of_node);
+
+ for_each_available_child_of_node(np, child) {
+ sensor = devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL);
+ if (!sensor) {
+ of_node_put(sensor_np);
+ return -ENOMEM;
+ }
+
+ ret = thermal_zone_of_get_sensor_id(child,
+ sensor_np,
+ &sensor->resource_id);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "failed to get valid sensor resource id: %d\n",
+ ret);
+ break;
+ }
+
+ sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev,
+ sensor->resource_id,
+ sensor,
+ &imx_sc_thermal_ops);
+ if (IS_ERR(sensor->tzd)) {
+ dev_err(&pdev->dev, "failed to register thermal zone\n");
+ ret = PTR_ERR(sensor->tzd);
+ break;
+ }
+ }
+
+ of_node_put(sensor_np);
+
+ return ret;
+}
+
+static int imx_sc_thermal_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static const struct of_device_id imx_sc_thermal_table[] = {
+ { .compatible = "fsl,imx-sc-thermal", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, imx_sc_thermal_table);
+
+static struct platform_driver imx_sc_thermal_driver = {
+ .probe = imx_sc_thermal_probe,
+ .remove = imx_sc_thermal_remove,
+ .driver = {
+ .name = "imx-sc-thermal",
+ .of_match_table = imx_sc_thermal_table,
+ },
+};
+module_platform_driver(imx_sc_thermal_driver);
+
+MODULE_AUTHOR("Anson Huang <Anson.Huang@nxp.com>");
+MODULE_DESCRIPTION("Thermal driver for NXP i.MX SoCs with system controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index bb6754a5342c..e761c9b42217 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -3,24 +3,17 @@
// Copyright 2013 Freescale Semiconductor, Inc.
#include <linux/clk.h>
-#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/cpu_cooling.h>
#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
-#include <linux/kernel.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
-#include <linux/platform_device.h>
#include <linux/regmap.h>
-#include <linux/slab.h>
#include <linux/thermal.h>
-#include <linux/types.h>
#include <linux/nvmem-consumer.h>
#define REG_SET 0x4
@@ -872,14 +865,12 @@ static int imx_thermal_remove(struct platform_device *pdev)
clk_disable_unprepare(data->thermal_clk);
thermal_zone_device_unregister(data->tz);
- cpufreq_cooling_unregister(data->cdev);
- cpufreq_cpu_put(data->policy);
+ imx_thermal_unregister_legacy_cooling(data);
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int imx_thermal_suspend(struct device *dev)
+static int __maybe_unused imx_thermal_suspend(struct device *dev)
{
struct imx_thermal_data *data = dev_get_drvdata(dev);
struct regmap *map = data->tempmon;
@@ -900,7 +891,7 @@ static int imx_thermal_suspend(struct device *dev)
return 0;
}
-static int imx_thermal_resume(struct device *dev)
+static int __maybe_unused imx_thermal_resume(struct device *dev)
{
struct imx_thermal_data *data = dev_get_drvdata(dev);
struct regmap *map = data->tempmon;
@@ -918,7 +909,6 @@ static int imx_thermal_resume(struct device *dev)
return 0;
}
-#endif
static SIMPLE_DEV_PM_OPS(imx_thermal_pm_ops,
imx_thermal_suspend, imx_thermal_resume);
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index 6cad15eb9cf4..ceef89c956bd 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -65,7 +65,7 @@ static ssize_t available_uuids_show(struct device *dev,
for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) {
if (priv->uuid_bitmap & (1 << i))
if (PAGE_SIZE - length > 0)
- length += snprintf(&buf[length],
+ length += scnprintf(&buf[length],
PAGE_SIZE - length,
"%s\n",
int3400_thermal_uuids[i]);
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
index b1fd34516e28..297db1d2d960 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
@@ -45,6 +45,9 @@
/* JasperLake thermal reporting device */
#define PCI_DEVICE_ID_PROC_JSL_THERMAL 0x4503
+/* TigerLake thermal reporting device */
+#define PCI_DEVICE_ID_PROC_TGL_THERMAL 0x9A03
+
#define DRV_NAME "proc_thermal"
struct power_config {
@@ -728,6 +731,8 @@ static const struct pci_device_id proc_thermal_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PROC_ICL_THERMAL),
.driver_data = (kernel_ulong_t)&rapl_mmio_hsw, },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PROC_JSL_THERMAL)},
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PROC_TGL_THERMAL),
+ .driver_data = (kernel_ulong_t)&rapl_mmio_hsw, },
{ 0, },
};
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index ef0baa954ff0..874a47d6923f 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -449,6 +449,50 @@ thermal_zone_of_add_sensor(struct device_node *zone,
}
/**
+ * thermal_zone_of_get_sensor_id - get sensor ID from a DT thermal zone
+ * @tz_np: a valid thermal zone device node.
+ * @sensor_np: a sensor node of a valid sensor device.
+ * @id: the sensor ID returned if success.
+ *
+ * This function will get sensor ID from a given thermal zone node and
+ * the sensor node must match the temperature provider @sensor_np.
+ *
+ * Return: 0 on success, proper error code otherwise.
+ */
+
+int thermal_zone_of_get_sensor_id(struct device_node *tz_np,
+ struct device_node *sensor_np,
+ u32 *id)
+{
+ struct of_phandle_args sensor_specs;
+ int ret;
+
+ ret = of_parse_phandle_with_args(tz_np,
+ "thermal-sensors",
+ "#thermal-sensor-cells",
+ 0,
+ &sensor_specs);
+ if (ret)
+ return ret;
+
+ if (sensor_specs.np != sensor_np) {
+ of_node_put(sensor_specs.np);
+ return -ENODEV;
+ }
+
+ if (sensor_specs.args_count > 1)
+ pr_warn("%pOFn: too many cells in sensor specifier %d\n",
+ sensor_specs.np, sensor_specs.args_count);
+
+ *id = sensor_specs.args_count ? sensor_specs.args[0] : 0;
+
+ of_node_put(sensor_specs.np);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(thermal_zone_of_get_sensor_id);
+
+/**
* thermal_zone_of_sensor_register - registers a sensor to a DT thermal zone
* @dev: a valid struct device pointer of a sensor device. Must contain
* a valid .of_node, for the sensor node.
@@ -499,36 +543,22 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
sensor_np = of_node_get(dev->of_node);
for_each_available_child_of_node(np, child) {
- struct of_phandle_args sensor_specs;
int ret, id;
/* For now, thermal framework supports only 1 sensor per zone */
- ret = of_parse_phandle_with_args(child, "thermal-sensors",
- "#thermal-sensor-cells",
- 0, &sensor_specs);
+ ret = thermal_zone_of_get_sensor_id(child, sensor_np, &id);
if (ret)
continue;
- if (sensor_specs.args_count >= 1) {
- id = sensor_specs.args[0];
- WARN(sensor_specs.args_count > 1,
- "%pOFn: too many cells in sensor specifier %d\n",
- sensor_specs.np, sensor_specs.args_count);
- } else {
- id = 0;
- }
-
- if (sensor_specs.np == sensor_np && id == sensor_id) {
+ if (id == sensor_id) {
tzd = thermal_zone_of_add_sensor(child, sensor_np,
data, ops);
if (!IS_ERR(tzd))
tzd->ops->set_mode(tzd, THERMAL_DEVICE_ENABLED);
- of_node_put(sensor_specs.np);
of_node_put(child);
goto exit;
}
- of_node_put(sensor_specs.np);
}
exit:
of_node_put(sensor_np);
diff --git a/drivers/thermal/qcom/tsens-8960.c b/drivers/thermal/qcom/tsens-8960.c
index fb77acb8d13b..2a28a5af209e 100644
--- a/drivers/thermal/qcom/tsens-8960.c
+++ b/drivers/thermal/qcom/tsens-8960.c
@@ -245,7 +245,7 @@ static inline int code_to_mdegC(u32 adc_code, const struct tsens_sensor *s)
return adc_code * slope + offset;
}
-static int get_temp_8960(struct tsens_sensor *s, int *temp)
+static int get_temp_8960(const struct tsens_sensor *s, int *temp)
{
int ret;
u32 code, trdy;
@@ -279,7 +279,7 @@ static const struct tsens_ops ops_8960 = {
.resume = resume_8960,
};
-const struct tsens_plat_data data_8960 = {
+struct tsens_plat_data data_8960 = {
.num_sensors = 11,
.ops = &ops_8960,
};
diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c
index c8d57ee0a5bb..172545366636 100644
--- a/drivers/thermal/qcom/tsens-common.c
+++ b/drivers/thermal/qcom/tsens-common.c
@@ -23,6 +23,10 @@
* @low_thresh: lower threshold temperature value
* @low_irq_mask: mask register for lower threshold irqs
* @low_irq_clear: clear register for lower threshold irqs
+ * @crit_viol: critical threshold violated
+ * @crit_thresh: critical threshold temperature value
+ * @crit_irq_mask: mask register for critical threshold irqs
+ * @crit_irq_clear: clear register for critical threshold irqs
*
* Structure containing data about temperature threshold settings and
* irq status if they were violated.
@@ -36,6 +40,10 @@ struct tsens_irq_data {
int low_thresh;
u32 low_irq_mask;
u32 low_irq_clear;
+ u32 crit_viol;
+ u32 crit_thresh;
+ u32 crit_irq_mask;
+ u32 crit_irq_clear;
};
char *qfprom_read(struct device *dev, const char *cname)
@@ -128,7 +136,7 @@ static inline int code_to_degc(u32 adc_code, const struct tsens_sensor *s)
* Return: Temperature in milliCelsius on success, a negative errno will
* be returned in error cases
*/
-static int tsens_hw_to_mC(struct tsens_sensor *s, int field)
+static int tsens_hw_to_mC(const struct tsens_sensor *s, int field)
{
struct tsens_priv *priv = s->priv;
u32 resolution;
@@ -160,7 +168,7 @@ static int tsens_hw_to_mC(struct tsens_sensor *s, int field)
*
* Return: ADC code or temperature in deciCelsius.
*/
-static int tsens_mC_to_hw(struct tsens_sensor *s, int temp)
+static int tsens_mC_to_hw(const struct tsens_sensor *s, int temp)
{
struct tsens_priv *priv = s->priv;
@@ -189,6 +197,9 @@ static void tsens_set_interrupt_v1(struct tsens_priv *priv, u32 hw_id,
case LOWER:
index = LOW_INT_CLEAR_0 + hw_id;
break;
+ case CRITICAL:
+ /* No critical interrupts before v2 */
+ return;
}
regmap_field_write(priv->rf[index], enable ? 0 : 1);
}
@@ -214,6 +225,10 @@ static void tsens_set_interrupt_v2(struct tsens_priv *priv, u32 hw_id,
index_mask = LOW_INT_MASK_0 + hw_id;
index_clear = LOW_INT_CLEAR_0 + hw_id;
break;
+ case CRITICAL:
+ index_mask = CRIT_INT_MASK_0 + hw_id;
+ index_clear = CRIT_INT_CLEAR_0 + hw_id;
+ break;
}
if (enable) {
@@ -268,14 +283,23 @@ static int tsens_threshold_violated(struct tsens_priv *priv, u32 hw_id,
ret = regmap_field_read(priv->rf[LOWER_STATUS_0 + hw_id], &d->low_viol);
if (ret)
return ret;
- if (d->up_viol || d->low_viol)
+
+ if (priv->feat->crit_int) {
+ ret = regmap_field_read(priv->rf[CRITICAL_STATUS_0 + hw_id],
+ &d->crit_viol);
+ if (ret)
+ return ret;
+ }
+
+ if (d->up_viol || d->low_viol || d->crit_viol)
return 1;
return 0;
}
static int tsens_read_irq_state(struct tsens_priv *priv, u32 hw_id,
- struct tsens_sensor *s, struct tsens_irq_data *d)
+ const struct tsens_sensor *s,
+ struct tsens_irq_data *d)
{
int ret;
@@ -292,22 +316,37 @@ static int tsens_read_irq_state(struct tsens_priv *priv, u32 hw_id,
ret = regmap_field_read(priv->rf[LOW_INT_MASK_0 + hw_id], &d->low_irq_mask);
if (ret)
return ret;
+ ret = regmap_field_read(priv->rf[CRIT_INT_CLEAR_0 + hw_id],
+ &d->crit_irq_clear);
+ if (ret)
+ return ret;
+ ret = regmap_field_read(priv->rf[CRIT_INT_MASK_0 + hw_id],
+ &d->crit_irq_mask);
+ if (ret)
+ return ret;
+
+ d->crit_thresh = tsens_hw_to_mC(s, CRIT_THRESH_0 + hw_id);
} else {
/* No mask register on older TSENS */
d->up_irq_mask = 0;
d->low_irq_mask = 0;
+ d->crit_irq_clear = 0;
+ d->crit_irq_mask = 0;
+ d->crit_thresh = 0;
}
d->up_thresh = tsens_hw_to_mC(s, UP_THRESH_0 + hw_id);
d->low_thresh = tsens_hw_to_mC(s, LOW_THRESH_0 + hw_id);
- dev_dbg(priv->dev, "[%u] %s%s: status(%u|%u) | clr(%u|%u) | mask(%u|%u)\n",
- hw_id, __func__, (d->up_viol || d->low_viol) ? "(V)" : "",
- d->low_viol, d->up_viol, d->low_irq_clear, d->up_irq_clear,
- d->low_irq_mask, d->up_irq_mask);
- dev_dbg(priv->dev, "[%u] %s%s: thresh: (%d:%d)\n", hw_id, __func__,
- (d->up_viol || d->low_viol) ? "(violation)" : "",
- d->low_thresh, d->up_thresh);
+ dev_dbg(priv->dev, "[%u] %s%s: status(%u|%u|%u) | clr(%u|%u|%u) | mask(%u|%u|%u)\n",
+ hw_id, __func__,
+ (d->up_viol || d->low_viol || d->crit_viol) ? "(V)" : "",
+ d->low_viol, d->up_viol, d->crit_viol,
+ d->low_irq_clear, d->up_irq_clear, d->crit_irq_clear,
+ d->low_irq_mask, d->up_irq_mask, d->crit_irq_mask);
+ dev_dbg(priv->dev, "[%u] %s%s: thresh: (%d:%d:%d)\n", hw_id, __func__,
+ (d->up_viol || d->low_viol || d->crit_viol) ? "(V)" : "",
+ d->low_thresh, d->up_thresh, d->crit_thresh);
return 0;
}
@@ -322,6 +361,76 @@ static inline u32 masked_irq(u32 hw_id, u32 mask, enum tsens_ver ver)
}
/**
+ * tsens_critical_irq_thread() - Threaded handler for critical interrupts
+ * @irq: irq number
+ * @data: tsens controller private data
+ *
+ * Check FSM watchdog bark status and clear if needed.
+ * Check all sensors to find ones that violated their critical threshold limits.
+ * Clear and then re-enable the interrupt.
+ *
+ * The level-triggered interrupt might deassert if the temperature returned to
+ * within the threshold limits by the time the handler got scheduled. We
+ * consider the irq to have been handled in that case.
+ *
+ * Return: IRQ_HANDLED
+ */
+irqreturn_t tsens_critical_irq_thread(int irq, void *data)
+{
+ struct tsens_priv *priv = data;
+ struct tsens_irq_data d;
+ int temp, ret, i;
+ u32 wdog_status, wdog_count;
+
+ if (priv->feat->has_watchdog) {
+ ret = regmap_field_read(priv->rf[WDOG_BARK_STATUS],
+ &wdog_status);
+ if (ret)
+ return ret;
+
+ if (wdog_status) {
+ /* Clear WDOG interrupt */
+ regmap_field_write(priv->rf[WDOG_BARK_CLEAR], 1);
+ regmap_field_write(priv->rf[WDOG_BARK_CLEAR], 0);
+ ret = regmap_field_read(priv->rf[WDOG_BARK_COUNT],
+ &wdog_count);
+ if (ret)
+ return ret;
+ if (wdog_count)
+ dev_dbg(priv->dev, "%s: watchdog count: %d\n",
+ __func__, wdog_count);
+
+ /* Fall through to handle critical interrupts if any */
+ }
+ }
+
+ for (i = 0; i < priv->num_sensors; i++) {
+ const struct tsens_sensor *s = &priv->sensor[i];
+ u32 hw_id = s->hw_id;
+
+ if (IS_ERR(s->tzd))
+ continue;
+ if (!tsens_threshold_violated(priv, hw_id, &d))
+ continue;
+ ret = get_temp_tsens_valid(s, &temp);
+ if (ret) {
+ dev_err(priv->dev, "[%u] %s: error reading sensor\n",
+ hw_id, __func__);
+ continue;
+ }
+
+ tsens_read_irq_state(priv, hw_id, s, &d);
+ if (d.crit_viol &&
+ !masked_irq(hw_id, d.crit_irq_mask, tsens_version(priv))) {
+ /* Mask critical interrupts, unused on Linux */
+ tsens_set_interrupt(priv, hw_id, CRITICAL, false);
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+/**
* tsens_irq_thread - Threaded interrupt handler for uplow interrupts
* @irq: irq number
* @data: tsens controller private data
@@ -346,10 +455,10 @@ irqreturn_t tsens_irq_thread(int irq, void *data)
for (i = 0; i < priv->num_sensors; i++) {
bool trigger = false;
- struct tsens_sensor *s = &priv->sensor[i];
+ const struct tsens_sensor *s = &priv->sensor[i];
u32 hw_id = s->hw_id;
- if (IS_ERR(priv->sensor[i].tzd))
+ if (IS_ERR(s->tzd))
continue;
if (!tsens_threshold_violated(priv, hw_id, &d))
continue;
@@ -368,7 +477,7 @@ irqreturn_t tsens_irq_thread(int irq, void *data)
tsens_set_interrupt(priv, hw_id, UPPER, disable);
if (d.up_thresh > temp) {
dev_dbg(priv->dev, "[%u] %s: re-arm upper\n",
- priv->sensor[i].hw_id, __func__);
+ hw_id, __func__);
tsens_set_interrupt(priv, hw_id, UPPER, enable);
} else {
trigger = true;
@@ -379,7 +488,7 @@ irqreturn_t tsens_irq_thread(int irq, void *data)
tsens_set_interrupt(priv, hw_id, LOWER, disable);
if (d.low_thresh < temp) {
dev_dbg(priv->dev, "[%u] %s: re-arm low\n",
- priv->sensor[i].hw_id, __func__);
+ hw_id, __func__);
tsens_set_interrupt(priv, hw_id, LOWER, enable);
} else {
trigger = true;
@@ -392,7 +501,7 @@ irqreturn_t tsens_irq_thread(int irq, void *data)
if (trigger) {
dev_dbg(priv->dev, "[%u] %s: TZ update trigger (%d mC)\n",
hw_id, __func__, temp);
- thermal_zone_device_update(priv->sensor[i].tzd,
+ thermal_zone_device_update(s->tzd,
THERMAL_EVENT_UNSPECIFIED);
} else {
dev_dbg(priv->dev, "[%u] %s: no violation: %d\n",
@@ -435,7 +544,7 @@ int tsens_set_trips(void *_sensor, int low, int high)
spin_unlock_irqrestore(&priv->ul_lock, flags);
dev_dbg(dev, "[%u] %s: (%d:%d)->(%d:%d)\n",
- s->hw_id, __func__, d.low_thresh, d.up_thresh, cl_low, cl_high);
+ hw_id, __func__, d.low_thresh, d.up_thresh, cl_low, cl_high);
return 0;
}
@@ -457,7 +566,7 @@ void tsens_disable_irq(struct tsens_priv *priv)
regmap_field_write(priv->rf[INT_EN], 0);
}
-int get_temp_tsens_valid(struct tsens_sensor *s, int *temp)
+int get_temp_tsens_valid(const struct tsens_sensor *s, int *temp)
{
struct tsens_priv *priv = s->priv;
int hw_id = s->hw_id;
@@ -486,7 +595,7 @@ int get_temp_tsens_valid(struct tsens_sensor *s, int *temp)
return 0;
}
-int get_temp_common(struct tsens_sensor *s, int *temp)
+int get_temp_common(const struct tsens_sensor *s, int *temp)
{
struct tsens_priv *priv = s->priv;
int hw_id = s->hw_id;
@@ -590,6 +699,7 @@ int __init init_common(struct tsens_priv *priv)
{
void __iomem *tm_base, *srot_base;
struct device *dev = priv->dev;
+ u32 ver_minor;
struct resource *res;
u32 enabled;
int ret, i, j;
@@ -602,7 +712,7 @@ int __init init_common(struct tsens_priv *priv)
/* DT with separate SROT and TM address space */
priv->tm_offset = 0;
res = platform_get_resource(op, IORESOURCE_MEM, 1);
- srot_base = devm_ioremap_resource(&op->dev, res);
+ srot_base = devm_ioremap_resource(dev, res);
if (IS_ERR(srot_base)) {
ret = PTR_ERR(srot_base);
goto err_put_device;
@@ -620,7 +730,7 @@ int __init init_common(struct tsens_priv *priv)
}
res = platform_get_resource(op, IORESOURCE_MEM, 0);
- tm_base = devm_ioremap_resource(&op->dev, res);
+ tm_base = devm_ioremap_resource(dev, res);
if (IS_ERR(tm_base)) {
ret = PTR_ERR(tm_base);
goto err_put_device;
@@ -639,6 +749,9 @@ int __init init_common(struct tsens_priv *priv)
if (IS_ERR(priv->rf[i]))
return PTR_ERR(priv->rf[i]);
}
+ ret = regmap_field_read(priv->rf[VER_MINOR], &ver_minor);
+ if (ret)
+ goto err_put_device;
}
priv->rf[TSENS_EN] = devm_regmap_field_alloc(dev, priv->srot_map,
@@ -683,12 +796,47 @@ int __init init_common(struct tsens_priv *priv)
}
}
+ if (priv->feat->crit_int) {
+ /* Loop might need changes if enum regfield_ids is reordered */
+ for (j = CRITICAL_STATUS_0; j <= CRIT_THRESH_15; j += 16) {
+ for (i = 0; i < priv->feat->max_sensors; i++) {
+ int idx = j + i;
+
+ priv->rf[idx] =
+ devm_regmap_field_alloc(dev,
+ priv->tm_map,
+ priv->fields[idx]);
+ if (IS_ERR(priv->rf[idx])) {
+ ret = PTR_ERR(priv->rf[idx]);
+ goto err_put_device;
+ }
+ }
+ }
+ }
+
+ if (tsens_version(priv) > VER_1_X && ver_minor > 2) {
+ /* Watchdog is present only on v2.3+ */
+ priv->feat->has_watchdog = 1;
+ for (i = WDOG_BARK_STATUS; i <= CC_MON_MASK; i++) {
+ priv->rf[i] = devm_regmap_field_alloc(dev, priv->tm_map,
+ priv->fields[i]);
+ if (IS_ERR(priv->rf[i])) {
+ ret = PTR_ERR(priv->rf[i]);
+ goto err_put_device;
+ }
+ }
+ /*
+ * Watchdog is already enabled, unmask the bark.
+ * Disable cycle completion monitoring
+ */
+ regmap_field_write(priv->rf[WDOG_BARK_MASK], 0);
+ regmap_field_write(priv->rf[CC_MON_MASK], 1);
+ }
+
spin_lock_init(&priv->ul_lock);
tsens_enable_irq(priv);
tsens_debug_init(op);
- return 0;
-
err_put_device:
put_device(&op->dev);
return ret;
diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c
index 4b8dd6de02ce..959a9371d205 100644
--- a/drivers/thermal/qcom/tsens-v0_1.c
+++ b/drivers/thermal/qcom/tsens-v0_1.c
@@ -327,7 +327,7 @@ static int calibrate_8974(struct tsens_priv *priv)
/* v0.1: 8916, 8974 */
-static const struct tsens_features tsens_v0_1_feat = {
+static struct tsens_features tsens_v0_1_feat = {
.ver_major = VER_0_1,
.crit_int = 0,
.adc = 1,
@@ -377,7 +377,7 @@ static const struct tsens_ops ops_8916 = {
.get_temp = get_temp_common,
};
-const struct tsens_plat_data data_8916 = {
+struct tsens_plat_data data_8916 = {
.num_sensors = 5,
.ops = &ops_8916,
.hw_ids = (unsigned int []){0, 1, 2, 4, 5 },
@@ -392,7 +392,7 @@ static const struct tsens_ops ops_8974 = {
.get_temp = get_temp_common,
};
-const struct tsens_plat_data data_8974 = {
+struct tsens_plat_data data_8974 = {
.num_sensors = 11,
.ops = &ops_8974,
.feat = &tsens_v0_1_feat,
diff --git a/drivers/thermal/qcom/tsens-v1.c b/drivers/thermal/qcom/tsens-v1.c
index bd2ddb684a45..b682a4df0081 100644
--- a/drivers/thermal/qcom/tsens-v1.c
+++ b/drivers/thermal/qcom/tsens-v1.c
@@ -299,7 +299,7 @@ static int calibrate_8976(struct tsens_priv *priv)
/* v1.x: msm8956,8976,qcs404,405 */
-static const struct tsens_features tsens_v1_feat = {
+static struct tsens_features tsens_v1_feat = {
.ver_major = VER_1_X,
.crit_int = 0,
.adc = 1,
@@ -368,7 +368,7 @@ static const struct tsens_ops ops_generic_v1 = {
.get_temp = get_temp_tsens_valid,
};
-const struct tsens_plat_data data_tsens_v1 = {
+struct tsens_plat_data data_tsens_v1 = {
.ops = &ops_generic_v1,
.feat = &tsens_v1_feat,
.fields = tsens_v1_regfields,
@@ -381,7 +381,7 @@ static const struct tsens_ops ops_8976 = {
};
/* Valid for both MSM8956 and MSM8976. Sensor ID 3 is unused. */
-const struct tsens_plat_data data_8976 = {
+struct tsens_plat_data data_8976 = {
.num_sensors = 11,
.ops = &ops_8976,
.hw_ids = (unsigned int[]){0, 1, 2, 4, 5, 6, 7, 8, 9, 10},
diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c
index a4d15e1abfdd..b293ed32174b 100644
--- a/drivers/thermal/qcom/tsens-v2.c
+++ b/drivers/thermal/qcom/tsens-v2.c
@@ -24,10 +24,11 @@
#define TM_Sn_CRITICAL_THRESHOLD_OFF 0x0060
#define TM_Sn_STATUS_OFF 0x00a0
#define TM_TRDY_OFF 0x00e4
+#define TM_WDOG_LOG_OFF 0x013c
/* v2.x: 8996, 8998, sdm845 */
-static const struct tsens_features tsens_v2_feat = {
+static struct tsens_features tsens_v2_feat = {
.ver_major = VER_2_X,
.crit_int = 1,
.adc = 0,
@@ -51,8 +52,9 @@ static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = {
[INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 2),
/* TEMPERATURE THRESHOLDS */
- REG_FIELD_FOR_EACH_SENSOR16(LOW_THRESH, TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 0, 11),
- REG_FIELD_FOR_EACH_SENSOR16(UP_THRESH, TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 12, 23),
+ REG_FIELD_FOR_EACH_SENSOR16(LOW_THRESH, TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 0, 11),
+ REG_FIELD_FOR_EACH_SENSOR16(UP_THRESH, TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 12, 23),
+ REG_FIELD_FOR_EACH_SENSOR16(CRIT_THRESH, TM_Sn_CRITICAL_THRESHOLD_OFF, 0, 11),
/* INTERRUPTS [CLEAR/STATUS/MASK] */
REG_FIELD_SPLIT_BITS_0_15(LOW_INT_STATUS, TM_UPPER_LOWER_INT_STATUS_OFF),
@@ -61,6 +63,18 @@ static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = {
REG_FIELD_SPLIT_BITS_16_31(UP_INT_STATUS, TM_UPPER_LOWER_INT_STATUS_OFF),
REG_FIELD_SPLIT_BITS_16_31(UP_INT_CLEAR, TM_UPPER_LOWER_INT_CLEAR_OFF),
REG_FIELD_SPLIT_BITS_16_31(UP_INT_MASK, TM_UPPER_LOWER_INT_MASK_OFF),
+ REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_STATUS, TM_CRITICAL_INT_STATUS_OFF),
+ REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_CLEAR, TM_CRITICAL_INT_CLEAR_OFF),
+ REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_MASK, TM_CRITICAL_INT_MASK_OFF),
+
+ /* WATCHDOG on v2.3 or later */
+ [WDOG_BARK_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 31, 31),
+ [WDOG_BARK_CLEAR] = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF, 31, 31),
+ [WDOG_BARK_MASK] = REG_FIELD(TM_CRITICAL_INT_MASK_OFF, 31, 31),
+ [CC_MON_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 30, 30),
+ [CC_MON_CLEAR] = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF, 30, 30),
+ [CC_MON_MASK] = REG_FIELD(TM_CRITICAL_INT_MASK_OFF, 30, 30),
+ [WDOG_BARK_COUNT] = REG_FIELD(TM_WDOG_LOG_OFF, 0, 7),
/* Sn_STATUS */
REG_FIELD_FOR_EACH_SENSOR16(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 11),
@@ -81,14 +95,14 @@ static const struct tsens_ops ops_generic_v2 = {
.get_temp = get_temp_tsens_valid,
};
-const struct tsens_plat_data data_tsens_v2 = {
+struct tsens_plat_data data_tsens_v2 = {
.ops = &ops_generic_v2,
.feat = &tsens_v2_feat,
.fields = tsens_v2_regfields,
};
/* Kept around for backward compatibility with old msm8996.dtsi */
-const struct tsens_plat_data data_8996 = {
+struct tsens_plat_data data_8996 = {
.num_sensors = 13,
.ops = &ops_generic_v2,
.feat = &tsens_v2_feat,
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 0e7cf5236932..2f77d235cf73 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -85,11 +85,42 @@ static const struct thermal_zone_of_device_ops tsens_of_ops = {
.set_trips = tsens_set_trips,
};
+static int tsens_register_irq(struct tsens_priv *priv, char *irqname,
+ irq_handler_t thread_fn)
+{
+ struct platform_device *pdev;
+ int ret, irq;
+
+ pdev = of_find_device_by_node(priv->dev->of_node);
+ if (!pdev)
+ return -ENODEV;
+
+ irq = platform_get_irq_byname(pdev, irqname);
+ if (irq < 0) {
+ ret = irq;
+ /* For old DTs with no IRQ defined */
+ if (irq == -ENXIO)
+ ret = 0;
+ } else {
+ ret = devm_request_threaded_irq(&pdev->dev, irq,
+ NULL, thread_fn,
+ IRQF_ONESHOT,
+ dev_name(&pdev->dev), priv);
+ if (ret)
+ dev_err(&pdev->dev, "%s: failed to get irq\n",
+ __func__);
+ else
+ enable_irq_wake(irq);
+ }
+
+ put_device(&pdev->dev);
+ return ret;
+}
+
static int tsens_register(struct tsens_priv *priv)
{
- int i, ret, irq;
+ int i, ret;
struct thermal_zone_device *tzd;
- struct platform_device *pdev;
for (i = 0; i < priv->num_sensors; i++) {
priv->sensor[i].priv = priv;
@@ -103,32 +134,14 @@ static int tsens_register(struct tsens_priv *priv)
priv->ops->enable(priv, i);
}
- pdev = of_find_device_by_node(priv->dev->of_node);
- if (!pdev)
- return -ENODEV;
-
- irq = platform_get_irq_byname(pdev, "uplow");
- if (irq < 0) {
- ret = irq;
- /* For old DTs with no IRQ defined */
- if (irq == -ENXIO)
- ret = 0;
- goto err_put_device;
- }
-
- ret = devm_request_threaded_irq(&pdev->dev, irq,
- NULL, tsens_irq_thread,
- IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
- dev_name(&pdev->dev), priv);
- if (ret) {
- dev_err(&pdev->dev, "%s: failed to get irq\n", __func__);
- goto err_put_device;
- }
+ ret = tsens_register_irq(priv, "uplow", tsens_irq_thread);
+ if (ret < 0)
+ return ret;
- enable_irq_wake(irq);
+ if (priv->feat->crit_int)
+ ret = tsens_register_irq(priv, "critical",
+ tsens_critical_irq_thread);
-err_put_device:
- put_device(&pdev->dev);
return ret;
}
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
index e24a865fbc34..502acf0e6828 100644
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -23,6 +23,7 @@
struct tsens_priv;
+/* IP version numbers in ascending order */
enum tsens_ver {
VER_0_1 = 0,
VER_1_X,
@@ -32,6 +33,7 @@ enum tsens_ver {
enum tsens_irq_type {
LOWER,
UPPER,
+ CRITICAL,
};
/**
@@ -67,7 +69,7 @@ struct tsens_ops {
/* mandatory callbacks */
int (*init)(struct tsens_priv *priv);
int (*calibrate)(struct tsens_priv *priv);
- int (*get_temp)(struct tsens_sensor *s, int *temp);
+ int (*get_temp)(const struct tsens_sensor *s, int *temp);
/* optional callbacks */
int (*enable)(struct tsens_priv *priv, int i);
void (*disable)(struct tsens_priv *priv);
@@ -374,6 +376,82 @@ enum regfield_ids {
CRITICAL_STATUS_13,
CRITICAL_STATUS_14,
CRITICAL_STATUS_15,
+ CRIT_INT_STATUS_0, /* CRITICAL interrupt status */
+ CRIT_INT_STATUS_1,
+ CRIT_INT_STATUS_2,
+ CRIT_INT_STATUS_3,
+ CRIT_INT_STATUS_4,
+ CRIT_INT_STATUS_5,
+ CRIT_INT_STATUS_6,
+ CRIT_INT_STATUS_7,
+ CRIT_INT_STATUS_8,
+ CRIT_INT_STATUS_9,
+ CRIT_INT_STATUS_10,
+ CRIT_INT_STATUS_11,
+ CRIT_INT_STATUS_12,
+ CRIT_INT_STATUS_13,
+ CRIT_INT_STATUS_14,
+ CRIT_INT_STATUS_15,
+ CRIT_INT_CLEAR_0, /* CRITICAL interrupt clear */
+ CRIT_INT_CLEAR_1,
+ CRIT_INT_CLEAR_2,
+ CRIT_INT_CLEAR_3,
+ CRIT_INT_CLEAR_4,
+ CRIT_INT_CLEAR_5,
+ CRIT_INT_CLEAR_6,
+ CRIT_INT_CLEAR_7,
+ CRIT_INT_CLEAR_8,
+ CRIT_INT_CLEAR_9,
+ CRIT_INT_CLEAR_10,
+ CRIT_INT_CLEAR_11,
+ CRIT_INT_CLEAR_12,
+ CRIT_INT_CLEAR_13,
+ CRIT_INT_CLEAR_14,
+ CRIT_INT_CLEAR_15,
+ CRIT_INT_MASK_0, /* CRITICAL interrupt mask */
+ CRIT_INT_MASK_1,
+ CRIT_INT_MASK_2,
+ CRIT_INT_MASK_3,
+ CRIT_INT_MASK_4,
+ CRIT_INT_MASK_5,
+ CRIT_INT_MASK_6,
+ CRIT_INT_MASK_7,
+ CRIT_INT_MASK_8,
+ CRIT_INT_MASK_9,
+ CRIT_INT_MASK_10,
+ CRIT_INT_MASK_11,
+ CRIT_INT_MASK_12,
+ CRIT_INT_MASK_13,
+ CRIT_INT_MASK_14,
+ CRIT_INT_MASK_15,
+ CRIT_THRESH_0, /* CRITICAL threshold values */
+ CRIT_THRESH_1,
+ CRIT_THRESH_2,
+ CRIT_THRESH_3,
+ CRIT_THRESH_4,
+ CRIT_THRESH_5,
+ CRIT_THRESH_6,
+ CRIT_THRESH_7,
+ CRIT_THRESH_8,
+ CRIT_THRESH_9,
+ CRIT_THRESH_10,
+ CRIT_THRESH_11,
+ CRIT_THRESH_12,
+ CRIT_THRESH_13,
+ CRIT_THRESH_14,
+ CRIT_THRESH_15,
+
+ /* WATCHDOG */
+ WDOG_BARK_STATUS,
+ WDOG_BARK_CLEAR,
+ WDOG_BARK_MASK,
+ WDOG_BARK_COUNT,
+
+ /* CYCLE COMPLETION MONITOR */
+ CC_MON_STATUS,
+ CC_MON_CLEAR,
+ CC_MON_MASK,
+
MIN_STATUS_0, /* MIN threshold violated */
MIN_STATUS_1,
MIN_STATUS_2,
@@ -418,6 +496,7 @@ enum regfield_ids {
* @adc: do the sensors only output adc code (instead of temperature)?
* @srot_split: does the IP neatly splits the register space into SROT and TM,
* with SROT only being available to secure boot firmware?
+ * @has_watchdog: does this IP support watchdog functionality?
* @max_sensors: maximum sensors supported by this version of the IP
*/
struct tsens_features {
@@ -425,6 +504,7 @@ struct tsens_features {
unsigned int crit_int:1;
unsigned int adc:1;
unsigned int srot_split:1;
+ unsigned int has_watchdog:1;
unsigned int max_sensors;
};
@@ -440,12 +520,14 @@ struct tsens_plat_data {
const u32 num_sensors;
const struct tsens_ops *ops;
unsigned int *hw_ids;
- const struct tsens_features *feat;
+ struct tsens_features *feat;
const struct reg_field *fields;
};
/**
* struct tsens_context - Registers to be saved/restored across a context loss
+ * @threshold: Threshold register value
+ * @control: Control register value
*/
struct tsens_context {
int threshold;
@@ -460,6 +542,8 @@ struct tsens_context {
* @srot_map: pointer to SROT register address space
* @tm_offset: deal with old device trees that don't address TM and SROT
* address space separately
+ * @ul_lock: lock while processing upper/lower threshold interrupts
+ * @crit_lock: lock while processing critical threshold interrupts
* @rf: array of regmap_fields used to store value of the field
* @ctx: registers to be saved and restored during suspend/resume
* @feat: features of the IP
@@ -481,36 +565,37 @@ struct tsens_priv {
struct regmap_field *rf[MAX_REGFIELDS];
struct tsens_context ctx;
- const struct tsens_features *feat;
+ struct tsens_features *feat;
const struct reg_field *fields;
const struct tsens_ops *ops;
struct dentry *debug_root;
struct dentry *debug;
- struct tsens_sensor sensor[0];
+ struct tsens_sensor sensor[];
};
char *qfprom_read(struct device *dev, const char *cname);
void compute_intercept_slope(struct tsens_priv *priv, u32 *pt1, u32 *pt2, u32 mode);
int init_common(struct tsens_priv *priv);
-int get_temp_tsens_valid(struct tsens_sensor *s, int *temp);
-int get_temp_common(struct tsens_sensor *s, int *temp);
+int get_temp_tsens_valid(const struct tsens_sensor *s, int *temp);
+int get_temp_common(const struct tsens_sensor *s, int *temp);
int tsens_enable_irq(struct tsens_priv *priv);
void tsens_disable_irq(struct tsens_priv *priv);
int tsens_set_trips(void *_sensor, int low, int high);
irqreturn_t tsens_irq_thread(int irq, void *data);
+irqreturn_t tsens_critical_irq_thread(int irq, void *data);
/* TSENS target */
-extern const struct tsens_plat_data data_8960;
+extern struct tsens_plat_data data_8960;
/* TSENS v0.1 targets */
-extern const struct tsens_plat_data data_8916, data_8974;
+extern struct tsens_plat_data data_8916, data_8974;
/* TSENS v1 targets */
-extern const struct tsens_plat_data data_tsens_v1, data_8976;
+extern struct tsens_plat_data data_tsens_v1, data_8976;
/* TSENS v2 targets */
-extern const struct tsens_plat_data data_8996, data_tsens_v2;
+extern struct tsens_plat_data data_8996, data_tsens_v2;
#endif /* __QCOM_TSENS_H__ */
diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c
index 874bc46e6c73..028a6bbf75dc 100644
--- a/drivers/thermal/qoriq_thermal.c
+++ b/drivers/thermal/qoriq_thermal.c
@@ -3,12 +3,11 @@
// Copyright 2016 Freescale Semiconductor, Inc.
#include <linux/clk.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/io.h>
+#include <linux/module.h>
#include <linux/of.h>
-#include <linux/of_address.h>
+#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/sizes.h>
#include <linux/thermal.h>
@@ -228,6 +227,14 @@ static const struct regmap_access_table qoriq_rd_table = {
.n_yes_ranges = ARRAY_SIZE(qoriq_yes_ranges),
};
+static void qoriq_tmu_action(void *p)
+{
+ struct qoriq_tmu_data *data = p;
+
+ regmap_write(data->regmap, REGS_TMR, TMR_DISABLE);
+ clk_disable_unprepare(data->clk);
+}
+
static int qoriq_tmu_probe(struct platform_device *pdev)
{
int ret;
@@ -278,6 +285,10 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
return ret;
}
+ ret = devm_add_action_or_reset(dev, qoriq_tmu_action, data);
+ if (ret)
+ return ret;
+
/* version register offset at: 0xbf8 on both v1 and v2 */
ret = regmap_read(data->regmap, REGS_IPBRR(0), &ver);
if (ret) {
@@ -290,35 +301,17 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
ret = qoriq_tmu_calibration(dev, data); /* TMU calibration */
if (ret < 0)
- goto err;
+ return ret;
ret = qoriq_tmu_register_tmu_zone(dev, data);
if (ret < 0) {
dev_err(dev, "Failed to register sensors\n");
- ret = -ENODEV;
- goto err;
+ return ret;
}
platform_set_drvdata(pdev, data);
return 0;
-
-err:
- clk_disable_unprepare(data->clk);
-
- return ret;
-}
-
-static int qoriq_tmu_remove(struct platform_device *pdev)
-{
- struct qoriq_tmu_data *data = platform_get_drvdata(pdev);
-
- /* Disable monitoring */
- regmap_write(data->regmap, REGS_TMR, TMR_DISABLE);
-
- clk_disable_unprepare(data->clk);
-
- return 0;
}
static int __maybe_unused qoriq_tmu_suspend(struct device *dev)
@@ -365,7 +358,6 @@ static struct platform_driver qoriq_tmu = {
.of_match_table = qoriq_tmu_match,
},
.probe = qoriq_tmu_probe,
- .remove = qoriq_tmu_remove,
};
module_platform_driver(qoriq_tmu);
diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index 72877bdc072d..58fe7c1ef00b 100644
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -81,8 +81,6 @@ struct rcar_gen3_thermal_tsc {
void __iomem *base;
struct thermal_zone_device *zone;
struct equation_coefs coef;
- int low;
- int high;
int tj_t;
int id; /* thermal channel id */
};
@@ -204,12 +202,14 @@ static int rcar_gen3_thermal_mcelsius_to_temp(struct rcar_gen3_thermal_tsc *tsc,
return INT_FIXPT(val);
}
-static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high)
+static int rcar_gen3_thermal_update_range(struct rcar_gen3_thermal_tsc *tsc)
{
- struct rcar_gen3_thermal_tsc *tsc = devdata;
+ int temperature, low, high;
+
+ rcar_gen3_thermal_get_temp(tsc, &temperature);
- low = clamp_val(low, -40000, 120000);
- high = clamp_val(high, -40000, 120000);
+ low = temperature - MCELSIUS(1);
+ high = temperature + MCELSIUS(1);
rcar_gen3_thermal_write(tsc, REG_GEN3_IRQTEMP1,
rcar_gen3_thermal_mcelsius_to_temp(tsc, low));
@@ -217,15 +217,11 @@ static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high)
rcar_gen3_thermal_write(tsc, REG_GEN3_IRQTEMP2,
rcar_gen3_thermal_mcelsius_to_temp(tsc, high));
- tsc->low = low;
- tsc->high = high;
-
return 0;
}
static const struct thermal_zone_of_device_ops rcar_gen3_tz_of_ops = {
.get_temp = rcar_gen3_thermal_get_temp,
- .set_trips = rcar_gen3_thermal_set_trips,
};
static void rcar_thermal_irq_set(struct rcar_gen3_thermal_priv *priv, bool on)
@@ -246,9 +242,11 @@ static irqreturn_t rcar_gen3_thermal_irq(int irq, void *data)
for (i = 0; i < priv->num_tscs; i++) {
status = rcar_gen3_thermal_read(priv->tscs[i], REG_GEN3_IRQSTR);
rcar_gen3_thermal_write(priv->tscs[i], REG_GEN3_IRQSTR, 0);
- if (status)
+ if (status) {
+ rcar_gen3_thermal_update_range(priv->tscs[i]);
thermal_zone_device_update(priv->tscs[i]->zone,
THERMAL_EVENT_UNSPECIFIED);
+ }
}
return IRQ_HANDLED;
@@ -325,6 +323,10 @@ static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
.data = &rcar_gen3_ths_tj_1_m3_w,
},
{
+ .compatible = "renesas,r8a77961-thermal",
+ .data = &rcar_gen3_ths_tj_1_m3_w,
+ },
+ {
.compatible = "renesas,r8a77965-thermal",
.data = &rcar_gen3_ths_tj_1,
},
@@ -446,14 +448,15 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
goto error_unregister;
ret = devm_add_action_or_reset(dev, rcar_gen3_hwmon_action, zone);
- if (ret) {
+ if (ret)
goto error_unregister;
- }
ret = of_thermal_get_ntrips(tsc->zone);
if (ret < 0)
goto error_unregister;
+ rcar_gen3_thermal_update_range(tsc);
+
dev_info(dev, "TSC%d: Loaded %d trip points\n", i, ret);
}
@@ -492,7 +495,7 @@ static int __maybe_unused rcar_gen3_thermal_resume(struct device *dev)
struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i];
priv->thermal_init(tsc);
- rcar_gen3_thermal_set_trips(tsc, tsc->low, tsc->high);
+ rcar_gen3_thermal_update_range(tsc);
}
rcar_thermal_irq_set(priv, true);
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 8f1aafa2044e..e0c1f2409035 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -95,7 +95,6 @@ struct rcar_thermal_priv {
struct mutex lock;
struct list_head list;
int id;
- u32 ctemp;
};
#define rcar_thermal_for_each_priv(pos, common) \
@@ -201,7 +200,6 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv)
struct device *dev = rcar_priv_to_dev(priv);
int i;
u32 ctemp, old, new;
- int ret = -EINVAL;
mutex_lock(&priv->lock);
@@ -247,37 +245,29 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv)
((ctemp - 1) << 0)));
}
- dev_dbg(dev, "thermal%d %d -> %d\n", priv->id, priv->ctemp, ctemp);
-
- priv->ctemp = ctemp;
- ret = 0;
err_out_unlock:
mutex_unlock(&priv->lock);
- return ret;
+
+ return ctemp ? ctemp : -EINVAL;
}
static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv,
int *temp)
{
- int tmp;
- int ret;
-
- ret = rcar_thermal_update_temp(priv);
- if (ret < 0)
- return ret;
+ int ctemp;
- mutex_lock(&priv->lock);
- if (priv->chip->ctemp_bands == 1)
- tmp = MCELSIUS((priv->ctemp * 5) - 65);
- else if (priv->ctemp < 24)
- tmp = MCELSIUS(((priv->ctemp * 55) - 720) / 10);
- else
- tmp = MCELSIUS((priv->ctemp * 5) - 60);
- mutex_unlock(&priv->lock);
+ ctemp = rcar_thermal_update_temp(priv);
+ if (ctemp < 0)
+ return ctemp;
/* Guaranteed operating range is -45C to 125C. */
- *temp = tmp;
+ if (priv->chip->ctemp_bands == 1)
+ *temp = MCELSIUS((ctemp * 5) - 65);
+ else if (ctemp < 24)
+ *temp = MCELSIUS(((ctemp * 55) - 720) / 10);
+ else
+ *temp = MCELSIUS((ctemp * 5) - 60);
return 0;
}
@@ -387,28 +377,17 @@ static void _rcar_thermal_irq_ctrl(struct rcar_thermal_priv *priv, int enable)
static void rcar_thermal_work(struct work_struct *work)
{
struct rcar_thermal_priv *priv;
- int cctemp, nctemp;
int ret;
priv = container_of(work, struct rcar_thermal_priv, work.work);
- ret = rcar_thermal_get_current_temp(priv, &cctemp);
- if (ret < 0)
- return;
-
ret = rcar_thermal_update_temp(priv);
if (ret < 0)
return;
rcar_thermal_irq_enable(priv);
- ret = rcar_thermal_get_current_temp(priv, &nctemp);
- if (ret < 0)
- return;
-
- if (nctemp != cctemp)
- thermal_zone_device_update(priv->zone,
- THERMAL_EVENT_UNSPECIFIED);
+ thermal_zone_device_update(priv->zone, THERMAL_EVENT_UNSPECIFIED);
}
static u32 rcar_thermal_had_changed(struct rcar_thermal_priv *priv, u32 status)
@@ -521,8 +500,10 @@ static int rcar_thermal_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM,
mres++);
common->base = devm_ioremap_resource(dev, res);
- if (IS_ERR(common->base))
- return PTR_ERR(common->base);
+ if (IS_ERR(common->base)) {
+ ret = PTR_ERR(common->base);
+ goto error_unregister;
+ }
idle = 0; /* polling delay is not needed */
}
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index fd4a17812f33..e9a90bc23b11 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -1094,7 +1094,9 @@ static int exynos_tmu_probe(struct platform_device *pdev)
&exynos_sensor_ops);
if (IS_ERR(data->tzd)) {
ret = PTR_ERR(data->tzd);
- dev_err(&pdev->dev, "Failed to register sensor: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Failed to register sensor: %d\n",
+ ret);
goto err_sclk;
}
diff --git a/drivers/thermal/sprd_thermal.c b/drivers/thermal/sprd_thermal.c
new file mode 100644
index 000000000000..a340374e8c51
--- /dev/null
+++ b/drivers/thermal/sprd_thermal.c
@@ -0,0 +1,552 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 Spreadtrum Communications Inc.
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/thermal.h>
+
+#define SPRD_THM_CTL 0x0
+#define SPRD_THM_INT_EN 0x4
+#define SPRD_THM_INT_STS 0x8
+#define SPRD_THM_INT_RAW_STS 0xc
+#define SPRD_THM_DET_PERIOD 0x10
+#define SPRD_THM_INT_CLR 0x14
+#define SPRD_THM_INT_CLR_ST 0x18
+#define SPRD_THM_MON_PERIOD 0x4c
+#define SPRD_THM_MON_CTL 0x50
+#define SPRD_THM_INTERNAL_STS1 0x54
+#define SPRD_THM_RAW_READ_MSK 0x3ff
+
+#define SPRD_THM_OFFSET(id) ((id) * 0x4)
+#define SPRD_THM_TEMP(id) (SPRD_THM_OFFSET(id) + 0x5c)
+#define SPRD_THM_THRES(id) (SPRD_THM_OFFSET(id) + 0x2c)
+
+#define SPRD_THM_SEN(id) BIT((id) + 2)
+#define SPRD_THM_SEN_OVERHEAT_EN(id) BIT((id) + 8)
+#define SPRD_THM_SEN_OVERHEAT_ALARM_EN(id) BIT((id) + 0)
+
+/* bits definitions for register THM_CTL */
+#define SPRD_THM_SET_RDY_ST BIT(13)
+#define SPRD_THM_SET_RDY BIT(12)
+#define SPRD_THM_MON_EN BIT(1)
+#define SPRD_THM_EN BIT(0)
+
+/* bits definitions for register THM_INT_CTL */
+#define SPRD_THM_BIT_INT_EN BIT(26)
+#define SPRD_THM_OVERHEAT_EN BIT(25)
+#define SPRD_THM_OTP_TRIP_SHIFT 10
+
+/* bits definitions for register SPRD_THM_INTERNAL_STS1 */
+#define SPRD_THM_TEMPER_RDY BIT(0)
+
+#define SPRD_THM_DET_PERIOD_DATA 0x800
+#define SPRD_THM_DET_PERIOD_MASK GENMASK(19, 0)
+#define SPRD_THM_MON_MODE 0x7
+#define SPRD_THM_MON_MODE_MASK GENMASK(3, 0)
+#define SPRD_THM_MON_PERIOD_DATA 0x10
+#define SPRD_THM_MON_PERIOD_MASK GENMASK(15, 0)
+#define SPRD_THM_THRES_MASK GENMASK(19, 0)
+#define SPRD_THM_INT_CLR_MASK GENMASK(24, 0)
+
+/* thermal sensor calibration parameters */
+#define SPRD_THM_TEMP_LOW -40000
+#define SPRD_THM_TEMP_HIGH 120000
+#define SPRD_THM_OTP_TEMP 120000
+#define SPRD_THM_HOT_TEMP 75000
+#define SPRD_THM_RAW_DATA_LOW 0
+#define SPRD_THM_RAW_DATA_HIGH 1000
+#define SPRD_THM_SEN_NUM 8
+#define SPRD_THM_DT_OFFSET 24
+#define SPRD_THM_RATION_OFFSET 17
+#define SPRD_THM_RATION_SIGN 16
+
+#define SPRD_THM_RDYST_POLLING_TIME 10
+#define SPRD_THM_RDYST_TIMEOUT 700
+#define SPRD_THM_TEMP_READY_POLL_TIME 10000
+#define SPRD_THM_TEMP_READY_TIMEOUT 600000
+#define SPRD_THM_MAX_SENSOR 8
+
+struct sprd_thermal_sensor {
+ struct thermal_zone_device *tzd;
+ struct sprd_thermal_data *data;
+ struct device *dev;
+ int cal_slope;
+ int cal_offset;
+ int id;
+};
+
+struct sprd_thermal_data {
+ const struct sprd_thm_variant_data *var_data;
+ struct sprd_thermal_sensor *sensor[SPRD_THM_MAX_SENSOR];
+ struct clk *clk;
+ void __iomem *base;
+ u32 ratio_off;
+ int ratio_sign;
+ int nr_sensors;
+};
+
+/*
+ * The conversion between ADC and temperature is based on linear relationship,
+ * and use idea_k to specify the slope and ideal_b to specify the offset.
+ *
+ * Since different Spreadtrum SoCs have different ideal_k and ideal_b,
+ * we should save ideal_k and ideal_b in the device data structure.
+ */
+struct sprd_thm_variant_data {
+ u32 ideal_k;
+ u32 ideal_b;
+};
+
+static const struct sprd_thm_variant_data ums512_data = {
+ .ideal_k = 262,
+ .ideal_b = 66400,
+};
+
+static inline void sprd_thm_update_bits(void __iomem *reg, u32 mask, u32 val)
+{
+ u32 tmp, orig;
+
+ orig = readl(reg);
+ tmp = orig & ~mask;
+ tmp |= val & mask;
+ writel(tmp, reg);
+}
+
+static int sprd_thm_cal_read(struct device_node *np, const char *cell_id,
+ u32 *val)
+{
+ struct nvmem_cell *cell;
+ void *buf;
+ size_t len;
+
+ cell = of_nvmem_cell_get(np, cell_id);
+ if (IS_ERR(cell))
+ return PTR_ERR(cell);
+
+ buf = nvmem_cell_read(cell, &len);
+ nvmem_cell_put(cell);
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+
+ if (len > sizeof(u32)) {
+ kfree(buf);
+ return -EINVAL;
+ }
+
+ memcpy(val, buf, len);
+
+ kfree(buf);
+ return 0;
+}
+
+static int sprd_thm_sensor_calibration(struct device_node *np,
+ struct sprd_thermal_data *thm,
+ struct sprd_thermal_sensor *sen)
+{
+ int ret;
+ /*
+ * According to thermal datasheet, the default calibration offset is 64,
+ * and the default ratio is 1000.
+ */
+ int dt_offset = 64, ratio = 1000;
+
+ ret = sprd_thm_cal_read(np, "sen_delta_cal", &dt_offset);
+ if (ret)
+ return ret;
+
+ ratio += thm->ratio_sign * thm->ratio_off;
+
+ /*
+ * According to the ideal slope K and ideal offset B, combined with
+ * calibration value of thermal from efuse, then calibrate the real
+ * slope k and offset b:
+ * k_cal = (k * ratio) / 1000.
+ * b_cal = b + (dt_offset - 64) * 500.
+ */
+ sen->cal_slope = (thm->var_data->ideal_k * ratio) / 1000;
+ sen->cal_offset = thm->var_data->ideal_b + (dt_offset - 128) * 250;
+
+ return 0;
+}
+
+static int sprd_thm_rawdata_to_temp(struct sprd_thermal_sensor *sen,
+ u32 rawdata)
+{
+ clamp(rawdata, (u32)SPRD_THM_RAW_DATA_LOW, (u32)SPRD_THM_RAW_DATA_HIGH);
+
+ /*
+ * According to the thermal datasheet, the formula of converting
+ * adc value to the temperature value should be:
+ * T_final = k_cal * x - b_cal.
+ */
+ return sen->cal_slope * rawdata - sen->cal_offset;
+}
+
+static int sprd_thm_temp_to_rawdata(int temp, struct sprd_thermal_sensor *sen)
+{
+ u32 val;
+
+ clamp(temp, (int)SPRD_THM_TEMP_LOW, (int)SPRD_THM_TEMP_HIGH);
+
+ /*
+ * According to the thermal datasheet, the formula of converting
+ * adc value to the temperature value should be:
+ * T_final = k_cal * x - b_cal.
+ */
+ val = (temp + sen->cal_offset) / sen->cal_slope;
+
+ return clamp(val, val, (u32)(SPRD_THM_RAW_DATA_HIGH - 1));
+}
+
+static int sprd_thm_read_temp(void *devdata, int *temp)
+{
+ struct sprd_thermal_sensor *sen = devdata;
+ u32 data;
+
+ data = readl(sen->data->base + SPRD_THM_TEMP(sen->id)) &
+ SPRD_THM_RAW_READ_MSK;
+
+ *temp = sprd_thm_rawdata_to_temp(sen, data);
+
+ return 0;
+}
+
+static const struct thermal_zone_of_device_ops sprd_thm_ops = {
+ .get_temp = sprd_thm_read_temp,
+};
+
+static int sprd_thm_poll_ready_status(struct sprd_thermal_data *thm)
+{
+ u32 val;
+ int ret;
+
+ /*
+ * Wait for thermal ready status before configuring thermal parameters.
+ */
+ ret = readl_poll_timeout(thm->base + SPRD_THM_CTL, val,
+ !(val & SPRD_THM_SET_RDY_ST),
+ SPRD_THM_RDYST_POLLING_TIME,
+ SPRD_THM_RDYST_TIMEOUT);
+ if (ret)
+ return ret;
+
+ sprd_thm_update_bits(thm->base + SPRD_THM_CTL, SPRD_THM_MON_EN,
+ SPRD_THM_MON_EN);
+ sprd_thm_update_bits(thm->base + SPRD_THM_CTL, SPRD_THM_SET_RDY,
+ SPRD_THM_SET_RDY);
+ return 0;
+}
+
+static int sprd_thm_wait_temp_ready(struct sprd_thermal_data *thm)
+{
+ u32 val;
+
+ /* Wait for first temperature data ready before reading temperature */
+ return readl_poll_timeout(thm->base + SPRD_THM_INTERNAL_STS1, val,
+ !(val & SPRD_THM_TEMPER_RDY),
+ SPRD_THM_TEMP_READY_POLL_TIME,
+ SPRD_THM_TEMP_READY_TIMEOUT);
+}
+
+static int sprd_thm_set_ready(struct sprd_thermal_data *thm)
+{
+ int ret;
+
+ ret = sprd_thm_poll_ready_status(thm);
+ if (ret)
+ return ret;
+
+ /*
+ * Clear interrupt status, enable thermal interrupt and enable thermal.
+ *
+ * The SPRD thermal controller integrates a hardware interrupt signal,
+ * which means if the temperature is overheat, it will generate an
+ * interrupt and notify the event to PMIC automatically to shutdown the
+ * system. So here we should enable the interrupt bits, though we have
+ * not registered an irq handler.
+ */
+ writel(SPRD_THM_INT_CLR_MASK, thm->base + SPRD_THM_INT_CLR);
+ sprd_thm_update_bits(thm->base + SPRD_THM_INT_EN,
+ SPRD_THM_BIT_INT_EN, SPRD_THM_BIT_INT_EN);
+ sprd_thm_update_bits(thm->base + SPRD_THM_CTL,
+ SPRD_THM_EN, SPRD_THM_EN);
+ return 0;
+}
+
+static void sprd_thm_sensor_init(struct sprd_thermal_data *thm,
+ struct sprd_thermal_sensor *sen)
+{
+ u32 otp_rawdata, hot_rawdata;
+
+ otp_rawdata = sprd_thm_temp_to_rawdata(SPRD_THM_OTP_TEMP, sen);
+ hot_rawdata = sprd_thm_temp_to_rawdata(SPRD_THM_HOT_TEMP, sen);
+
+ /* Enable the sensor' overheat temperature protection interrupt */
+ sprd_thm_update_bits(thm->base + SPRD_THM_INT_EN,
+ SPRD_THM_SEN_OVERHEAT_ALARM_EN(sen->id),
+ SPRD_THM_SEN_OVERHEAT_ALARM_EN(sen->id));
+
+ /* Set the sensor' overheat and hot threshold temperature */
+ sprd_thm_update_bits(thm->base + SPRD_THM_THRES(sen->id),
+ SPRD_THM_THRES_MASK,
+ (otp_rawdata << SPRD_THM_OTP_TRIP_SHIFT) |
+ hot_rawdata);
+
+ /* Enable the corresponding sensor */
+ sprd_thm_update_bits(thm->base + SPRD_THM_CTL, SPRD_THM_SEN(sen->id),
+ SPRD_THM_SEN(sen->id));
+}
+
+static void sprd_thm_para_config(struct sprd_thermal_data *thm)
+{
+ /* Set the period of two valid temperature detection action */
+ sprd_thm_update_bits(thm->base + SPRD_THM_DET_PERIOD,
+ SPRD_THM_DET_PERIOD_MASK, SPRD_THM_DET_PERIOD);
+
+ /* Set the sensors' monitor mode */
+ sprd_thm_update_bits(thm->base + SPRD_THM_MON_CTL,
+ SPRD_THM_MON_MODE_MASK, SPRD_THM_MON_MODE);
+
+ /* Set the sensors' monitor period */
+ sprd_thm_update_bits(thm->base + SPRD_THM_MON_PERIOD,
+ SPRD_THM_MON_PERIOD_MASK, SPRD_THM_MON_PERIOD);
+}
+
+static void sprd_thm_toggle_sensor(struct sprd_thermal_sensor *sen, bool on)
+{
+ struct thermal_zone_device *tzd = sen->tzd;
+
+ tzd->ops->set_mode(tzd,
+ on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
+}
+
+static int sprd_thm_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *sen_child;
+ struct sprd_thermal_data *thm;
+ struct sprd_thermal_sensor *sen;
+ const struct sprd_thm_variant_data *pdata;
+ int ret, i;
+ u32 val;
+
+ pdata = of_device_get_match_data(&pdev->dev);
+ if (!pdata) {
+ dev_err(&pdev->dev, "No matching driver data found\n");
+ return -EINVAL;
+ }
+
+ thm = devm_kzalloc(&pdev->dev, sizeof(*thm), GFP_KERNEL);
+ if (!thm)
+ return -ENOMEM;
+
+ thm->var_data = pdata;
+ thm->base = devm_platform_ioremap_resource(pdev, 0);
+ if (!thm->base)
+ return -ENOMEM;
+
+ thm->nr_sensors = of_get_child_count(np);
+ if (thm->nr_sensors == 0 || thm->nr_sensors > SPRD_THM_MAX_SENSOR) {
+ dev_err(&pdev->dev, "incorrect sensor count\n");
+ return -EINVAL;
+ }
+
+ thm->clk = devm_clk_get(&pdev->dev, "enable");
+ if (IS_ERR(thm->clk)) {
+ dev_err(&pdev->dev, "failed to get enable clock\n");
+ return PTR_ERR(thm->clk);
+ }
+
+ ret = clk_prepare_enable(thm->clk);
+ if (ret)
+ return ret;
+
+ sprd_thm_para_config(thm);
+
+ ret = sprd_thm_cal_read(np, "thm_sign_cal", &val);
+ if (ret)
+ goto disable_clk;
+
+ if (val > 0)
+ thm->ratio_sign = -1;
+ else
+ thm->ratio_sign = 1;
+
+ ret = sprd_thm_cal_read(np, "thm_ratio_cal", &thm->ratio_off);
+ if (ret)
+ goto disable_clk;
+
+ for_each_child_of_node(np, sen_child) {
+ sen = devm_kzalloc(&pdev->dev, sizeof(*sen), GFP_KERNEL);
+ if (!sen) {
+ ret = -ENOMEM;
+ goto disable_clk;
+ }
+
+ sen->data = thm;
+ sen->dev = &pdev->dev;
+
+ ret = of_property_read_u32(sen_child, "reg", &sen->id);
+ if (ret) {
+ dev_err(&pdev->dev, "get sensor reg failed");
+ goto disable_clk;
+ }
+
+ ret = sprd_thm_sensor_calibration(sen_child, thm, sen);
+ if (ret) {
+ dev_err(&pdev->dev, "efuse cal analysis failed");
+ goto disable_clk;
+ }
+
+ sprd_thm_sensor_init(thm, sen);
+
+ sen->tzd = devm_thermal_zone_of_sensor_register(sen->dev,
+ sen->id,
+ sen,
+ &sprd_thm_ops);
+ if (IS_ERR(sen->tzd)) {
+ dev_err(&pdev->dev, "register thermal zone failed %d\n",
+ sen->id);
+ ret = PTR_ERR(sen->tzd);
+ goto disable_clk;
+ }
+
+ thm->sensor[sen->id] = sen;
+ }
+
+ ret = sprd_thm_set_ready(thm);
+ if (ret)
+ goto disable_clk;
+
+ ret = sprd_thm_wait_temp_ready(thm);
+ if (ret)
+ goto disable_clk;
+
+ for (i = 0; i < thm->nr_sensors; i++)
+ sprd_thm_toggle_sensor(thm->sensor[i], true);
+
+ platform_set_drvdata(pdev, thm);
+ return 0;
+
+disable_clk:
+ clk_disable_unprepare(thm->clk);
+ return ret;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static void sprd_thm_hw_suspend(struct sprd_thermal_data *thm)
+{
+ int i;
+
+ for (i = 0; i < thm->nr_sensors; i++) {
+ sprd_thm_update_bits(thm->base + SPRD_THM_CTL,
+ SPRD_THM_SEN(thm->sensor[i]->id), 0);
+ }
+
+ sprd_thm_update_bits(thm->base + SPRD_THM_CTL,
+ SPRD_THM_EN, 0x0);
+}
+
+static int sprd_thm_suspend(struct device *dev)
+{
+ struct sprd_thermal_data *thm = dev_get_drvdata(dev);
+ int i;
+
+ for (i = 0; i < thm->nr_sensors; i++)
+ sprd_thm_toggle_sensor(thm->sensor[i], false);
+
+ sprd_thm_hw_suspend(thm);
+ clk_disable_unprepare(thm->clk);
+
+ return 0;
+}
+
+static int sprd_thm_hw_resume(struct sprd_thermal_data *thm)
+{
+ int ret, i;
+
+ for (i = 0; i < thm->nr_sensors; i++) {
+ sprd_thm_update_bits(thm->base + SPRD_THM_CTL,
+ SPRD_THM_SEN(thm->sensor[i]->id),
+ SPRD_THM_SEN(thm->sensor[i]->id));
+ }
+
+ ret = sprd_thm_poll_ready_status(thm);
+ if (ret)
+ return ret;
+
+ writel(SPRD_THM_INT_CLR_MASK, thm->base + SPRD_THM_INT_CLR);
+ sprd_thm_update_bits(thm->base + SPRD_THM_CTL,
+ SPRD_THM_EN, SPRD_THM_EN);
+ return sprd_thm_wait_temp_ready(thm);
+}
+
+static int sprd_thm_resume(struct device *dev)
+{
+ struct sprd_thermal_data *thm = dev_get_drvdata(dev);
+ int ret, i;
+
+ ret = clk_prepare_enable(thm->clk);
+ if (ret)
+ return ret;
+
+ ret = sprd_thm_hw_resume(thm);
+ if (ret)
+ goto disable_clk;
+
+ for (i = 0; i < thm->nr_sensors; i++)
+ sprd_thm_toggle_sensor(thm->sensor[i], true);
+
+ return 0;
+
+disable_clk:
+ clk_disable_unprepare(thm->clk);
+ return ret;
+}
+#endif
+
+static int sprd_thm_remove(struct platform_device *pdev)
+{
+ struct sprd_thermal_data *thm = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < thm->nr_sensors; i++) {
+ sprd_thm_toggle_sensor(thm->sensor[i], false);
+ devm_thermal_zone_of_sensor_unregister(&pdev->dev,
+ thm->sensor[i]->tzd);
+ }
+
+ clk_disable_unprepare(thm->clk);
+ return 0;
+}
+
+static const struct of_device_id sprd_thermal_of_match[] = {
+ { .compatible = "sprd,ums512-thermal", .data = &ums512_data },
+ { },
+};
+
+static const struct dev_pm_ops sprd_thermal_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(sprd_thm_suspend, sprd_thm_resume)
+};
+
+static struct platform_driver sprd_thermal_driver = {
+ .probe = sprd_thm_probe,
+ .remove = sprd_thm_remove,
+ .driver = {
+ .name = "sprd-thermal",
+ .pm = &sprd_thermal_pm_ops,
+ .of_match_table = sprd_thermal_of_match,
+ },
+};
+
+module_platform_driver(sprd_thermal_driver);
+
+MODULE_AUTHOR("Freeman Liu <freeman.liu@unisoc.com>");
+MODULE_DESCRIPTION("Spreadtrum thermal driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/thermal/st/stm_thermal.c b/drivers/thermal/st/stm_thermal.c
index ad9e3bf8fdf6..9314e3df6a42 100644
--- a/drivers/thermal/st/stm_thermal.c
+++ b/drivers/thermal/st/stm_thermal.c
@@ -478,7 +478,8 @@ static int stm_thermal_resume(struct device *dev)
}
#endif /* CONFIG_PM_SLEEP */
-SIMPLE_DEV_PM_OPS(stm_thermal_pm_ops, stm_thermal_suspend, stm_thermal_resume);
+static SIMPLE_DEV_PM_OPS(stm_thermal_pm_ops,
+ stm_thermal_suspend, stm_thermal_resume);
static const struct thermal_zone_of_device_ops stm_tz_ops = {
.get_temp = stm_thermal_get_temp,
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 2fa78f738568..263b0420fbe4 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -15,7 +15,7 @@
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/clk.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/types.h>
@@ -24,7 +24,6 @@
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
#include <linux/io.h>
#include "ti-bandgap.h"
@@ -743,27 +742,13 @@ exit:
static int ti_bandgap_tshut_init(struct ti_bandgap *bgp,
struct platform_device *pdev)
{
- int gpio_nr = bgp->tshut_gpio;
int status;
- /* Request for gpio_86 line */
- status = gpio_request(gpio_nr, "tshut");
- if (status < 0) {
- dev_err(bgp->dev, "Could not request for TSHUT GPIO:%i\n", 86);
- return status;
- }
- status = gpio_direction_input(gpio_nr);
- if (status) {
- dev_err(bgp->dev, "Cannot set input TSHUT GPIO %d\n", gpio_nr);
- return status;
- }
-
- status = request_irq(gpio_to_irq(gpio_nr), ti_bandgap_tshut_irq_handler,
+ status = request_irq(gpiod_to_irq(bgp->tshut_gpiod),
+ ti_bandgap_tshut_irq_handler,
IRQF_TRIGGER_RISING, "tshut", NULL);
- if (status) {
- gpio_free(gpio_nr);
+ if (status)
dev_err(bgp->dev, "request irq failed for TSHUT");
- }
return 0;
}
@@ -860,11 +845,10 @@ static struct ti_bandgap *ti_bandgap_build(struct platform_device *pdev)
} while (res);
if (TI_BANDGAP_HAS(bgp, TSHUT)) {
- bgp->tshut_gpio = of_get_gpio(node, 0);
- if (!gpio_is_valid(bgp->tshut_gpio)) {
- dev_err(&pdev->dev, "invalid gpio for tshut (%d)\n",
- bgp->tshut_gpio);
- return ERR_PTR(-EINVAL);
+ bgp->tshut_gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_IN);
+ if (IS_ERR(bgp->tshut_gpiod)) {
+ dev_err(&pdev->dev, "invalid gpio for tshut\n");
+ return ERR_CAST(bgp->tshut_gpiod);
}
}
@@ -1046,10 +1030,8 @@ put_clks:
put_fclock:
clk_put(bgp->fclock);
free_irqs:
- if (TI_BANDGAP_HAS(bgp, TSHUT)) {
- free_irq(gpio_to_irq(bgp->tshut_gpio), NULL);
- gpio_free(bgp->tshut_gpio);
- }
+ if (TI_BANDGAP_HAS(bgp, TSHUT))
+ free_irq(gpiod_to_irq(bgp->tshut_gpiod), NULL);
return ret;
}
@@ -1079,10 +1061,8 @@ int ti_bandgap_remove(struct platform_device *pdev)
if (TI_BANDGAP_HAS(bgp, TALERT))
free_irq(bgp->irq, bgp);
- if (TI_BANDGAP_HAS(bgp, TSHUT)) {
- free_irq(gpio_to_irq(bgp->tshut_gpio), NULL);
- gpio_free(bgp->tshut_gpio);
- }
+ if (TI_BANDGAP_HAS(bgp, TSHUT))
+ free_irq(gpiod_to_irq(bgp->tshut_gpiod), NULL);
return 0;
}
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
index bb9b0f7faf99..fce4657e9486 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
@@ -13,6 +13,8 @@
#include <linux/types.h>
#include <linux/err.h>
+struct gpio_desc;
+
/**
* DOC: bandgap driver data structure
* ==================================
@@ -199,7 +201,7 @@ struct ti_bandgap {
struct clk *div_clk;
spinlock_t lock; /* shields this struct */
int irq;
- int tshut_gpio;
+ struct gpio_desc *tshut_gpiod;
u32 clk_rate;
};