diff options
| author | Linus Torvalds | 2020-04-07 20:00:16 -0700 |
|---|---|---|
| committer | Linus Torvalds | 2020-04-07 20:00:16 -0700 |
| commit | 34183ddd13dbfa859c4b68d16a30aad2cce72b11 (patch) | |
| tree | bb32ff408c71c834352a9bdf1e7969c12cc91976 | |
| parent | 8645f09bad14df3776484b44933a41c446343087 (diff) | |
| parent | 11700fcb90b40a38fbfba55b2bedfc9909be8ec8 (diff) | |
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
...
34 files changed, 1598 insertions, 241 deletions
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt index 8cac6fafaab0..623fedf12180 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -166,6 +166,17 @@ Required properties: followed by "fsl,imx-sc-key"; - linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml +Thermal bindings based on SCU Message Protocol +------------------------------------------------------------ + +Required properties: +- compatible: Should be : + "fsl,imx8qxp-sc-thermal" + followed by "fsl,imx-sc-thermal"; + +- #thermal-sensor-cells: See Documentation/devicetree/bindings/thermal/thermal.txt + for a description. + Example (imx8qxp): ------------- aliases { @@ -238,6 +249,11 @@ firmware { compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; timeout-sec = <60>; }; + + tsens: thermal-sensor { + compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal"; + #thermal-sensor-cells = <1>; + }; }; }; diff --git a/Documentation/devicetree/bindings/thermal/imx8mm-thermal.txt b/Documentation/devicetree/bindings/thermal/imx8mm-thermal.txt new file mode 100644 index 000000000000..3629d3c7e76a --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/imx8mm-thermal.txt @@ -0,0 +1,15 @@ +* Thermal Monitoring Unit (TMU) on Freescale i.MX8MM SoC + +Required properties: +- compatible : Must be "fsl,imx8mm-tmu" or "fsl,imx8mp-tmu". +- reg : Address range of TMU registers. +- clocks : TMU's clock source. +- #thermal-sensor-cells : Should be 0 or 1. See ./thermal.txt for a description. + +Example: +tmu: tmu@30260000 { + compatible = "fsl,imx8mm-tmu"; + reg = <0x30260000 0x10000>; + clocks = <&clk IMX8MM_CLK_TMU_ROOT>; + #thermal-sensor-cells = <0>; +}; diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml index a57b76ad7dea..2ddd39d96766 100644 --- a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml +++ b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml @@ -38,11 +38,11 @@ properties: - enum: - qcom,msm8996-tsens - qcom,msm8998-tsens + - qcom,sc7180-tsens - qcom,sdm845-tsens - const: qcom,tsens-v2 reg: - maxItems: 2 items: - description: TM registers - description: SROT registers diff --git a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt index 12c740b975f7..2993fa720195 100644 --- a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt @@ -11,6 +11,7 @@ Required properties: - "renesas,r8a774b1-thermal" (RZ/G2N) - "renesas,r8a7795-thermal" (R-Car H3) - "renesas,r8a7796-thermal" (R-Car M3-W) + - "renesas,r8a77961-thermal" (R-Car M3-W+) - "renesas,r8a77965-thermal" (R-Car M3-N) - "renesas,r8a77980-thermal" (R-Car V3H) - reg : Address ranges of the thermal registers. Each sensor diff --git a/Documentation/devicetree/bindings/thermal/sprd-thermal.yaml b/Documentation/devicetree/bindings/thermal/sprd-thermal.yaml new file mode 100644 index 000000000000..058c4cc06ba6 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/sprd-thermal.yaml @@ -0,0 +1,107 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/sprd-thermal.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Spreadtrum thermal sensor controller bindings + +maintainers: + - Orson Zhai <orsonzhai@gmail.com> + - Baolin Wang <baolin.wang7@gmail.com> + - Chunyan Zhang <zhang.lyra@gmail.com> + +properties: + compatible: + const: sprd,ums512-thermal + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: enable + + nvmem-cells: + maxItems: 2 + description: + Reference to nvmem nodes for the calibration data. + + nvmem-cell-names: + items: + - const: thm_sign_cal + - const: thm_ratio_cal + + "#thermal-sensor-cells": + const: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^([a-z]*-)?sensor(-section)?@[0-9]+$": + type: object + description: + Represent one thermal sensor. + + properties: + reg: + description: Specify the sensor id. + maxItems: 1 + + nvmem-cells: + maxItems: 1 + description: + Reference to an nvmem node for the calibration data. + + nvmem-cell-names: + const: sen_delta_cal + + required: + - reg + - nvmem-cells + - nvmem-cell-names + +required: + - compatible + - reg + - clocks + - clock-names + - nvmem-cells + - nvmem-cell-names + - "#thermal-sensor-cells" + - "#address-cells" + - "#size-cells" + +examples: + - | + ap_thm0: thermal@32200000 { + compatible = "sprd,ums512-thermal"; + reg = <0 0x32200000 0 0x10000>; + clock-names = "enable"; + clocks = <&aonapb_gate 32>; + #thermal-sensor-cells = <1>; + nvmem-cells = <&thm0_sign>, <&thm0_ratio>; + nvmem-cell-names = "thm_sign_cal", "thm_ratio_cal"; + #address-cells = <1>; + #size-cells = <0>; + + prometheus-sensor@0 { + reg = <0>; + nvmem-cells = <&thm0_sen0>; + nvmem-cell-names = "sen_delta_cal"; + }; + + ank-sensor@1 { + reg = <1>; + nvmem-cells = <&thm0_sen1>; + nvmem-cell-names = "sen_delta_cal"; + }; + }; +... diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt index ca14ba959e0d..f78bec19ca35 100644 --- a/Documentation/devicetree/bindings/thermal/thermal.txt +++ b/Documentation/devicetree/bindings/thermal/thermal.txt @@ -142,11 +142,11 @@ Required properties: - trips: A sub-node which is a container of only trip point nodes Type: sub-node required to describe the thermal zone. +Optional property: - cooling-maps: A sub-node which is a container of only cooling device Type: sub-node map nodes, used to describe the relation between trips and cooling devices. -Optional property: - coefficients: An array of integers (one signed cell) containing Type: array coefficients to compose a linear relation between Elem size: one cell the sensors listed in the thermal-sensors property. diff --git a/Documentation/driver-api/thermal/cpu-idle-cooling.rst b/Documentation/driver-api/thermal/cpu-idle-cooling.rst index 9f0016ee4cfb..a1c3edecae00 100644 --- a/Documentation/driver-api/thermal/cpu-idle-cooling.rst +++ b/Documentation/driver-api/thermal/cpu-idle-cooling.rst @@ -105,8 +105,8 @@ and this variation will modulate the cooling effect. idle <--------------> running - <-----------------------------> - duty cycle 33% + <---------------------> + duty cycle 33% ^ 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; }; diff --git a/include/linux/devfreq_cooling.h b/include/linux/devfreq_cooling.h index 4635f95000a4..79a6e37a1d6f 100644 --- a/include/linux/devfreq_cooling.h +++ b/include/linux/devfreq_cooling.h @@ -75,7 +75,7 @@ void devfreq_cooling_unregister(struct thermal_cooling_device *dfc); #else /* !CONFIG_DEVFREQ_THERMAL */ -struct thermal_cooling_device * +static inline struct thermal_cooling_device * of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, struct devfreq_cooling_power *dfc_power) { diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 126913c6a53b..c91b1e344d56 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -364,6 +364,9 @@ struct thermal_trip { /* Function declarations */ #ifdef CONFIG_THERMAL_OF +int thermal_zone_of_get_sensor_id(struct device_node *tz_np, + struct device_node *sensor_np, + u32 *id); struct thermal_zone_device * thermal_zone_of_sensor_register(struct device *dev, int id, void *data, const struct thermal_zone_of_device_ops *ops); @@ -375,6 +378,13 @@ struct thermal_zone_device *devm_thermal_zone_of_sensor_register( void devm_thermal_zone_of_sensor_unregister(struct device *dev, struct thermal_zone_device *tz); #else + +static inline int thermal_zone_of_get_sensor_id(struct device_node *tz_np, + struct device_node *sensor_np, + u32 *id) +{ + return -ENOENT; +} static inline struct thermal_zone_device * thermal_zone_of_sensor_register(struct device *dev, int id, void *data, const struct thermal_zone_of_device_ops *ops) diff --git a/tools/thermal/tmon/tmon.c b/tools/thermal/tmon/tmon.c index 83ec6e482f12..7eb3216a27f4 100644 --- a/tools/thermal/tmon/tmon.c +++ b/tools/thermal/tmon/tmon.c @@ -46,7 +46,7 @@ static void start_daemon_mode(void); pthread_t event_tid; pthread_mutex_t input_lock; -void usage() +void usage(void) { printf("Usage: tmon [OPTION...]\n"); printf(" -c, --control cooling device in control\n"); @@ -62,7 +62,7 @@ void usage() exit(0); } -void version() +void version(void) { printf("TMON version %s\n", VERSION); exit(EXIT_SUCCESS); @@ -70,7 +70,6 @@ void version() static void tmon_cleanup(void) { - syslog(LOG_INFO, "TMON exit cleanup\n"); fflush(stdout); refresh(); @@ -96,7 +95,6 @@ static void tmon_cleanup(void) exit(1); } - static void tmon_sig_handler(int sig) { syslog(LOG_INFO, "TMON caught signal %d\n", sig); @@ -120,7 +118,6 @@ static void tmon_sig_handler(int sig) tmon_exit = true; } - static void start_syslog(void) { if (debug_on) @@ -167,7 +164,6 @@ static void prepare_logging(void) return; } - fprintf(tmon_log, "#----------- THERMAL SYSTEM CONFIG -------------\n"); for (i = 0; i < ptdata.nr_tz_sensor; i++) { char binding_str[33]; /* size of long + 1 */ @@ -175,7 +171,7 @@ static void prepare_logging(void) memset(binding_str, 0, sizeof(binding_str)); for (j = 0; j < 32; j++) - binding_str[j] = (ptdata.tzi[i].cdev_binding & 1<<j) ? + binding_str[j] = (ptdata.tzi[i].cdev_binding & (1 << j)) ? '1' : '0'; fprintf(tmon_log, "#thermal zone %s%02d cdevs binding: %32s\n", @@ -187,7 +183,6 @@ static void prepare_logging(void) trip_type_name[ptdata.tzi[i].tp[j].type], ptdata.tzi[i].tp[j].temp); } - } for (i = 0; i < ptdata.nr_cooling_dev; i++) @@ -219,7 +214,6 @@ static struct option opts[] = { { 0, 0, NULL, 0 } }; - int main(int argc, char **argv) { int err = 0; @@ -283,7 +277,7 @@ int main(int argc, char **argv) if (signal(SIGINT, tmon_sig_handler) == SIG_ERR) syslog(LOG_DEBUG, "Cannot handle SIGINT\n"); if (signal(SIGTERM, tmon_sig_handler) == SIG_ERR) - syslog(LOG_DEBUG, "Cannot handle SIGINT\n"); + syslog(LOG_DEBUG, "Cannot handle SIGTERM\n"); if (probe_thermal_sysfs()) { pthread_mutex_destroy(&input_lock); @@ -328,8 +322,7 @@ int main(int argc, char **argv) show_cooling_device(); } time_elapsed += ticktime; - controller_handler(trec[0].temp[target_tz_index] / 1000, - &yk); + controller_handler(trec[0].temp[target_tz_index] / 1000, &yk); trec[0].pid_out_pct = yk; if (!dialogue_on) show_control_w(); @@ -340,14 +333,15 @@ int main(int argc, char **argv) return 0; } -static void start_daemon_mode() +static void start_daemon_mode(void) { daemon_mode = 1; /* fork */ pid_t sid, pid = fork(); - if (pid < 0) { + + if (pid < 0) exit(EXIT_FAILURE); - } else if (pid > 0) + else if (pid > 0) /* kill parent */ exit(EXIT_SUCCESS); @@ -366,11 +360,9 @@ static void start_daemon_mode() if ((chdir("/")) < 0) exit(EXIT_FAILURE); - sleep(10); close(STDIN_FILENO); close(STDOUT_FILENO); close(STDERR_FILENO); - } |