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Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

Browse source 
Pull thermal management updates from Zhang Rui:

 - introduce brcmstb AVS TMON thermal driver (Brian Norris)

 - add Rockchip RV1108 support in rockchip thermal driver (Rocky Hao)

 - major rework on HISI driver plus additional support of hisi3660
   (Daniel Lezcano)

 - add nvmem-cells binding on imx6sx (Leonard Crestez)

 - fix a NULL pointer dereference on ti thermal driver unloading (Tony
   Lindgren)

 - improve tmon tool to make it easier to cross-compile tmon (Markus
   Mayer)

 - add Coffee Lake and Cannon Lake support for intel processor and pch
   thermal drivers (Srinivas Pandruvada)

 - other small fixes and cleanups (Arvind Yadav, Colin Ian King, Allen
   Wild, Nicolin Chen, Baruch SiachNiklas Söderlund, Arnd Bergmann)

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (44 commits)
  thermal: pch: Add Cannon Lake support
  thermal: int340x: processor_thermal: Add Coffee Lake support
  thermal: int340x: processor_thermal: Add Cannon Lake support
  thermal: bxt: remove redundant variable trip
  thermal: cpu_cooling: pr_err() strings should end with newlines
  thermal: add brcmstb AVS TMON driver
  Documentation: devicetree: add binding for Broadcom STB AVS TMON
  thermal/drivers/hisi: Add support for hi3660 SoC
  thermal/drivers/hisi: Prepare to add support for other hisi platforms
  thermal/drivers/hisi: Add platform prefix to function name
  thermal/drivers/hisi: Put platform code together
  thermal/drivers/qcom-spmi: Use devm_iio_channel_get
  thermal/drivers/generic-iio-adc: Switch tz request to devm version
  thermal/drivers/step_wise: Fix temperature regulation misbehavior
  thermal/drivers/hisi: Use round up step value
  thermal/drivers/hisi: Move the clk setup in the corresponding functions
  thermal/drivers/hisi: Remove mutex_lock in the code
  thermal/drivers/hisi: Remove thermal data back pointer
  thermal/drivers/hisi: Convert long to int
  thermal/drivers/hisi: Rename and remove unused field
  ...
This commit is contained in:
Linus Torvalds 2017-11-17 14:31:27 -08:00
commit bec04432cb
25 changed files with 1055 additions and 327 deletions
Download patch file Download diff file Expand all files Collapse all files

3
drivers/thermal/Kconfig
View file

@ -206,6 +206,7 @@ config HISI_THERMAL
config IMX_THERMAL
tristate "Temperature sensor driver for Freescale i.MX SoCs"
depends on (ARCH_MXC && CPU_THERMAL) || COMPILE_TEST
depends on NVMEM || !NVMEM
depends on MFD_SYSCON
depends on OF
help
@ -408,7 +409,7 @@ config MTK_THERMAL
controller present in Mediatek SoCs
menu "Broadcom thermal drivers"
depends on ARCH_BCM || COMPILE_TEST
depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || COMPILE_TEST
source "drivers/thermal/broadcom/Kconfig"
endmenu

2
drivers/thermal/armada_thermal.c
View file

@ -58,7 +58,7 @@ struct armada_thermal_data {
/* Test for a valid sensor value (optional) */
bool (*is_valid)(struct armada_thermal_priv *);
/* Formula coeficients: temp = (b + m * reg) / div */
/* Formula coeficients: temp = (b - m * reg) / div */
unsigned long coef_b;
unsigned long coef_m;
unsigned long coef_div;

7
drivers/thermal/broadcom/Kconfig
View file

@ -6,6 +6,13 @@ config BCM2835_THERMAL
help
Support for thermal sensors on Broadcom bcm2835 SoCs.
config BRCMSTB_THERMAL
tristate "Broadcom STB AVS TMON thermal driver"
depends on ARCH_BRCMSTB || COMPILE_TEST
help
Enable this driver if you have a Broadcom STB SoC and would like
thermal framework support.
config BCM_NS_THERMAL
tristate "Northstar thermal driver"
depends on ARCH_BCM_IPROC || COMPILE_TEST

1
drivers/thermal/broadcom/Makefile
View file

@ -1,2 +1,3 @@
obj-$(CONFIG_BCM2835_THERMAL) += bcm2835_thermal.o
obj-$(CONFIG_BRCMSTB_THERMAL) += brcmstb_thermal.o
obj-$(CONFIG_BCM_NS_THERMAL) += ns-thermal.o

387
drivers/thermal/broadcom/brcmstb_thermal.c Normal file
View file

@ -0,0 +1,387 @@
/*
* Broadcom STB AVS TMON thermal sensor driver
*
* Copyright (c) 2015-2017 Broadcom
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#define DRV_NAME "brcmstb_thermal"
#define pr_fmt(fmt) DRV_NAME ": " fmt
#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/irqreturn.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <linux/thermal.h>
#define AVS_TMON_STATUS 0x00
#define AVS_TMON_STATUS_valid_msk BIT(11)
#define AVS_TMON_STATUS_data_msk GENMASK(10, 1)
#define AVS_TMON_STATUS_data_shift 1
#define AVS_TMON_EN_OVERTEMP_RESET 0x04
#define AVS_TMON_EN_OVERTEMP_RESET_msk BIT(0)
#define AVS_TMON_RESET_THRESH 0x08
#define AVS_TMON_RESET_THRESH_msk GENMASK(10, 1)
#define AVS_TMON_RESET_THRESH_shift 1
#define AVS_TMON_INT_IDLE_TIME 0x10
#define AVS_TMON_EN_TEMP_INT_SRCS 0x14
#define AVS_TMON_EN_TEMP_INT_SRCS_high BIT(1)
#define AVS_TMON_EN_TEMP_INT_SRCS_low BIT(0)
#define AVS_TMON_INT_THRESH 0x18
#define AVS_TMON_INT_THRESH_high_msk GENMASK(26, 17)
#define AVS_TMON_INT_THRESH_high_shift 17
#define AVS_TMON_INT_THRESH_low_msk GENMASK(10, 1)
#define AVS_TMON_INT_THRESH_low_shift 1
#define AVS_TMON_TEMP_INT_CODE 0x1c
#define AVS_TMON_TP_TEST_ENABLE 0x20
/* Default coefficients */
#define AVS_TMON_TEMP_SLOPE -487
#define AVS_TMON_TEMP_OFFSET 410040
/* HW related temperature constants */
#define AVS_TMON_TEMP_MAX 0x3ff
#define AVS_TMON_TEMP_MIN -88161
#define AVS_TMON_TEMP_MASK AVS_TMON_TEMP_MAX
enum avs_tmon_trip_type {
TMON_TRIP_TYPE_LOW = 0,
TMON_TRIP_TYPE_HIGH,
TMON_TRIP_TYPE_RESET,
TMON_TRIP_TYPE_MAX,
};
struct avs_tmon_trip {
/* HW bit to enable the trip */
u32 enable_offs;
u32 enable_mask;
/* HW field to read the trip temperature */
u32 reg_offs;
u32 reg_msk;
int reg_shift;
};
static struct avs_tmon_trip avs_tmon_trips[] = {
/* Trips when temperature is below threshold */
[TMON_TRIP_TYPE_LOW] = {
.enable_offs = AVS_TMON_EN_TEMP_INT_SRCS,
.enable_mask = AVS_TMON_EN_TEMP_INT_SRCS_low,
.reg_offs = AVS_TMON_INT_THRESH,
.reg_msk = AVS_TMON_INT_THRESH_low_msk,
.reg_shift = AVS_TMON_INT_THRESH_low_shift,
},
/* Trips when temperature is above threshold */
[TMON_TRIP_TYPE_HIGH] = {
.enable_offs = AVS_TMON_EN_TEMP_INT_SRCS,
.enable_mask = AVS_TMON_EN_TEMP_INT_SRCS_high,
.reg_offs = AVS_TMON_INT_THRESH,
.reg_msk = AVS_TMON_INT_THRESH_high_msk,
.reg_shift = AVS_TMON_INT_THRESH_high_shift,
},
/* Automatically resets chip when above threshold */
[TMON_TRIP_TYPE_RESET] = {
.enable_offs = AVS_TMON_EN_OVERTEMP_RESET,
.enable_mask = AVS_TMON_EN_OVERTEMP_RESET_msk,
.reg_offs = AVS_TMON_RESET_THRESH,
.reg_msk = AVS_TMON_RESET_THRESH_msk,
.reg_shift = AVS_TMON_RESET_THRESH_shift,
},
};
struct brcmstb_thermal_priv {
void __iomem *tmon_base;
struct device *dev;
struct thermal_zone_device *thermal;
};
static void avs_tmon_get_coeffs(struct thermal_zone_device *tz, int *slope,
int *offset)
{
*slope = thermal_zone_get_slope(tz);
*offset = thermal_zone_get_offset(tz);
}
/* Convert a HW code to a temperature reading (millidegree celsius) */
static inline int avs_tmon_code_to_temp(struct thermal_zone_device *tz,
u32 code)
{
const int val = code & AVS_TMON_TEMP_MASK;
int slope, offset;
avs_tmon_get_coeffs(tz, &slope, &offset);
return slope * val + offset;
}
/*
* Convert a temperature value (millidegree celsius) to a HW code
*
* @temp: temperature to convert
* @low: if true, round toward the low side
*/
static inline u32 avs_tmon_temp_to_code(struct thermal_zone_device *tz,
int temp, bool low)
{
int slope, offset;
if (temp < AVS_TMON_TEMP_MIN)
return AVS_TMON_TEMP_MAX; /* Maximum code value */
avs_tmon_get_coeffs(tz, &slope, &offset);
if (temp >= offset)
return 0; /* Minimum code value */
if (low)
return (u32)(DIV_ROUND_UP(offset - temp, abs(slope)));
else
return (u32)((offset - temp) / abs(slope));
}
static int brcmstb_get_temp(void *data, int *temp)
{
struct brcmstb_thermal_priv *priv = data;
u32 val;
long t;
val = __raw_readl(priv->tmon_base + AVS_TMON_STATUS);
if (!(val & AVS_TMON_STATUS_valid_msk)) {
dev_err(priv->dev, "reading not valid\n");
return -EIO;
}
val = (val & AVS_TMON_STATUS_data_msk) >> AVS_TMON_STATUS_data_shift;
t = avs_tmon_code_to_temp(priv->thermal, val);
if (t < 0)
*temp = 0;
else
*temp = t;
return 0;
}
static void avs_tmon_trip_enable(struct brcmstb_thermal_priv *priv,
enum avs_tmon_trip_type type, int en)
{
struct avs_tmon_trip *trip = &avs_tmon_trips[type];
u32 val = __raw_readl(priv->tmon_base + trip->enable_offs);
dev_dbg(priv->dev, "%sable trip, type %d\n", en ? "en" : "dis", type);
if (en)
val |= trip->enable_mask;
else
val &= ~trip->enable_mask;
__raw_writel(val, priv->tmon_base + trip->enable_offs);
}
static int avs_tmon_get_trip_temp(struct brcmstb_thermal_priv *priv,
enum avs_tmon_trip_type type)
{
struct avs_tmon_trip *trip = &avs_tmon_trips[type];
u32 val = __raw_readl(priv->tmon_base + trip->reg_offs);
val &= trip->reg_msk;
val >>= trip->reg_shift;
return avs_tmon_code_to_temp(priv->thermal, val);
}
static void avs_tmon_set_trip_temp(struct brcmstb_thermal_priv *priv,
enum avs_tmon_trip_type type,
int temp)
{
struct avs_tmon_trip *trip = &avs_tmon_trips[type];
u32 val, orig;
dev_dbg(priv->dev, "set temp %d to %d\n", type, temp);
/* round toward low temp for the low interrupt */
val = avs_tmon_temp_to_code(priv->thermal, temp,
type == TMON_TRIP_TYPE_LOW);
val <<= trip->reg_shift;
val &= trip->reg_msk;
orig = __raw_readl(priv->tmon_base + trip->reg_offs);
orig &= ~trip->reg_msk;
orig |= val;
__raw_writel(orig, priv->tmon_base + trip->reg_offs);
}
static int avs_tmon_get_intr_temp(struct brcmstb_thermal_priv *priv)
{
u32 val;
val = __raw_readl(priv->tmon_base + AVS_TMON_TEMP_INT_CODE);
return avs_tmon_code_to_temp(priv->thermal, val);
}
static irqreturn_t brcmstb_tmon_irq_thread(int irq, void *data)
{
struct brcmstb_thermal_priv *priv = data;
int low, high, intr;
low = avs_tmon_get_trip_temp(priv, TMON_TRIP_TYPE_LOW);
high = avs_tmon_get_trip_temp(priv, TMON_TRIP_TYPE_HIGH);
intr = avs_tmon_get_intr_temp(priv);
dev_dbg(priv->dev, "low/intr/high: %d/%d/%d\n",
low, intr, high);
/* Disable high-temp until next threshold shift */
if (intr >= high)
avs_tmon_trip_enable(priv, TMON_TRIP_TYPE_HIGH, 0);
/* Disable low-temp until next threshold shift */
if (intr <= low)
avs_tmon_trip_enable(priv, TMON_TRIP_TYPE_LOW, 0);
/*
* Notify using the interrupt temperature, in case the temperature
* changes before it can next be read out
*/
thermal_zone_device_update(priv->thermal, intr);
return IRQ_HANDLED;
}
static int brcmstb_set_trips(void *data, int low, int high)
{
struct brcmstb_thermal_priv *priv = data;
dev_dbg(priv->dev, "set trips %d <--> %d\n", low, high);
/*
* Disable low-temp if "low" is too small. As per thermal framework
* API, we use -INT_MAX rather than INT_MIN.
*/
if (low <= -INT_MAX) {
avs_tmon_trip_enable(priv, TMON_TRIP_TYPE_LOW, 0);
} else {
avs_tmon_set_trip_temp(priv, TMON_TRIP_TYPE_LOW, low);
avs_tmon_trip_enable(priv, TMON_TRIP_TYPE_LOW, 1);
}
/* Disable high-temp if "high" is too big. */
if (high == INT_MAX) {
avs_tmon_trip_enable(priv, TMON_TRIP_TYPE_HIGH, 0);
} else {
avs_tmon_set_trip_temp(priv, TMON_TRIP_TYPE_HIGH, high);
avs_tmon_trip_enable(priv, TMON_TRIP_TYPE_HIGH, 1);
}
return 0;
}
static struct thermal_zone_of_device_ops of_ops = {
.get_temp = brcmstb_get_temp,
.set_trips = brcmstb_set_trips,
};
static const struct of_device_id brcmstb_thermal_id_table[] = {
{ .compatible = "brcm,avs-tmon" },
{},
};
MODULE_DEVICE_TABLE(of, brcmstb_thermal_id_table);
static int brcmstb_thermal_probe(struct platform_device *pdev)
{
struct thermal_zone_device *thermal;
struct brcmstb_thermal_priv *priv;
struct resource *res;
int irq, ret;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->tmon_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(priv->tmon_base))
return PTR_ERR(priv->tmon_base);
priv->dev = &pdev->dev;
platform_set_drvdata(pdev, priv);
thermal = thermal_zone_of_sensor_register(&pdev->dev, 0, priv, &of_ops);
if (IS_ERR(thermal)) {
ret = PTR_ERR(thermal);
dev_err(&pdev->dev, "could not register sensor: %d\n", ret);
return ret;
}
priv->thermal = thermal;
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "could not get IRQ\n");
ret = irq;
goto err;
}
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
brcmstb_tmon_irq_thread, IRQF_ONESHOT,
DRV_NAME, priv);
if (ret < 0) {
dev_err(&pdev->dev, "could not request IRQ: %d\n", ret);
goto err;
}
dev_info(&pdev->dev, "registered AVS TMON of-sensor driver\n");
return 0;
err:
thermal_zone_of_sensor_unregister(&pdev->dev, thermal);
return ret;
}
static int brcmstb_thermal_exit(struct platform_device *pdev)
{
struct brcmstb_thermal_priv *priv = platform_get_drvdata(pdev);
struct thermal_zone_device *thermal = priv->thermal;
if (thermal)
thermal_zone_of_sensor_unregister(&pdev->dev, priv->thermal);
return 0;
}
static struct platform_driver brcmstb_thermal_driver = {
.probe = brcmstb_thermal_probe,
.remove = brcmstb_thermal_exit,
.driver = {
.name = DRV_NAME,
.of_match_table = brcmstb_thermal_id_table,
},
};
module_platform_driver(brcmstb_thermal_driver);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Brian Norris");
MODULE_DESCRIPTION("Broadcom STB AVS TMON thermal driver");

2
drivers/thermal/cpu_cooling.c
View file

@ -696,7 +696,7 @@ __cpufreq_cooling_register(struct device_node *np,
bool first;
if (IS_ERR_OR_NULL(policy)) {
pr_err("%s: cpufreq policy isn't valid: %p", __func__, policy);
pr_err("%s: cpufreq policy isn't valid: %p\n", __func__, policy);
return ERR_PTR(-EINVAL);
}

640
drivers/thermal/hisi_thermal.c
View file

@ -23,186 +23,423 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/of_device.h>
#include "thermal_core.h"
#define TEMP0_TH (0x4)
#define TEMP0_RST_TH (0x8)
#define TEMP0_CFG (0xC)
#define TEMP0_EN (0x10)
#define TEMP0_INT_EN (0x14)
#define TEMP0_INT_CLR (0x18)
#define TEMP0_RST_MSK (0x1C)
#define TEMP0_VALUE (0x28)
#define HI6220_TEMP0_LAG (0x0)
#define HI6220_TEMP0_TH (0x4)
#define HI6220_TEMP0_RST_TH (0x8)
#define HI6220_TEMP0_CFG (0xC)
#define HI6220_TEMP0_CFG_SS_MSK (0xF000)
#define HI6220_TEMP0_CFG_HDAK_MSK (0x30)
#define HI6220_TEMP0_EN (0x10)
#define HI6220_TEMP0_INT_EN (0x14)
#define HI6220_TEMP0_INT_CLR (0x18)
#define HI6220_TEMP0_RST_MSK (0x1C)
#define HI6220_TEMP0_VALUE (0x28)
#define HISI_TEMP_BASE (-60)
#define HISI_TEMP_RESET (100000)
#define HI3660_OFFSET(chan) ((chan) * 0x40)
#define HI3660_TEMP(chan) (HI3660_OFFSET(chan) + 0x1C)
#define HI3660_TH(chan) (HI3660_OFFSET(chan) + 0x20)
#define HI3660_LAG(chan) (HI3660_OFFSET(chan) + 0x28)
#define HI3660_INT_EN(chan) (HI3660_OFFSET(chan) + 0x2C)
#define HI3660_INT_CLR(chan) (HI3660_OFFSET(chan) + 0x30)
#define HISI_MAX_SENSORS 4
#define HI6220_TEMP_BASE (-60000)
#define HI6220_TEMP_RESET (100000)
#define HI6220_TEMP_STEP (785)
#define HI6220_TEMP_LAG (3500)
#define HI3660_TEMP_BASE (-63780)
#define HI3660_TEMP_STEP (205)
#define HI3660_TEMP_LAG (4000)
#define HI6220_DEFAULT_SENSOR 2
#define HI3660_DEFAULT_SENSOR 1
struct hisi_thermal_sensor {
struct hisi_thermal_data *thermal;
struct thermal_zone_device *tzd;
long sensor_temp;
uint32_t id;
uint32_t thres_temp;
};
struct hisi_thermal_data {
struct mutex thermal_lock; /* protects register data */
int (*get_temp)(struct hisi_thermal_data *data);
int (*enable_sensor)(struct hisi_thermal_data *data);
int (*disable_sensor)(struct hisi_thermal_data *data);
int (*irq_handler)(struct hisi_thermal_data *data);
struct platform_device *pdev;
struct clk *clk;
struct hisi_thermal_sensor sensors[HISI_MAX_SENSORS];
int irq, irq_bind_sensor;
bool irq_enabled;
struct hisi_thermal_sensor sensor;
void __iomem *regs;
int irq;
};
/* in millicelsius */
static inline int _step_to_temp(int step)
/*
* The temperature computation on the tsensor is as follow:
* Unit: millidegree Celsius
* Step: 200/255 (0.7843)
* Temperature base: -60°C
*
* The register is programmed in temperature steps, every step is 785
* millidegree and begins at -60 000 m°C
*
* The temperature from the steps:
*
* Temp = TempBase + (steps x 785)
*
* and the steps from the temperature:
*
* steps = (Temp - TempBase) / 785
*
*/
static inline int hi6220_thermal_step_to_temp(int step)
{
/*
* Every step equals (1 * 200) / 255 celsius, and finally
* need convert to millicelsius.
*/
return (HISI_TEMP_BASE * 1000 + (step * 200000 / 255));
return HI6220_TEMP_BASE + (step * HI6220_TEMP_STEP);
}
static inline long _temp_to_step(long temp)
static inline int hi6220_thermal_temp_to_step(int temp)
{
return ((temp - HISI_TEMP_BASE * 1000) * 255) / 200000;
return DIV_ROUND_UP(temp - HI6220_TEMP_BASE, HI6220_TEMP_STEP);
}
static long hisi_thermal_get_sensor_temp(struct hisi_thermal_data *data,
struct hisi_thermal_sensor *sensor)
/*
* for Hi3660,
* Step: 189/922 (0.205)
* Temperature base: -63.780°C
*
* The register is programmed in temperature steps, every step is 205
* millidegree and begins at -63 780 m°C
*/
static inline int hi3660_thermal_step_to_temp(int step)
{
long val;
return HI3660_TEMP_BASE + step * HI3660_TEMP_STEP;
}
mutex_lock(&data->thermal_lock);
static inline int hi3660_thermal_temp_to_step(int temp)
{
return DIV_ROUND_UP(temp - HI3660_TEMP_BASE, HI3660_TEMP_STEP);
}
/* disable interrupt */
writel(0x0, data->regs + TEMP0_INT_EN);
writel(0x1, data->regs + TEMP0_INT_CLR);
/*
* The lag register contains 5 bits encoding the temperature in steps.
*
* Each time the temperature crosses the threshold boundary, an
* interrupt is raised. It could be when the temperature is going
* above the threshold or below. However, if the temperature is
* fluctuating around this value due to the load, we can receive
* several interrupts which may not desired.
*
* We can setup a temperature representing the delta between the
* threshold and the current temperature when the temperature is
* decreasing.
*
* For instance: the lag register is 5°C, the threshold is 65°C, when
* the temperature reaches 65°C an interrupt is raised and when the
* temperature decrease to 65°C - 5°C another interrupt is raised.
*
* A very short lag can lead to an interrupt storm, a long lag
* increase the latency to react to the temperature changes. In our
* case, that is not really a problem as we are polling the
* temperature.
*
* [0:4] : lag register
*
* The temperature is coded in steps, cf. HI6220_TEMP_STEP.
*
* Min : 0x00 : 0.0 °C
* Max : 0x1F : 24.3 °C
*
* The 'value' parameter is in milliCelsius.
*/
static inline void hi6220_thermal_set_lag(void __iomem *addr, int value)
{
writel(DIV_ROUND_UP(value, HI6220_TEMP_STEP) & 0x1F,
addr + HI6220_TEMP0_LAG);
}
static inline void hi6220_thermal_alarm_clear(void __iomem *addr, int value)
{
writel(value, addr + HI6220_TEMP0_INT_CLR);
}
static inline void hi6220_thermal_alarm_enable(void __iomem *addr, int value)
{
writel(value, addr + HI6220_TEMP0_INT_EN);
}
static inline void hi6220_thermal_alarm_set(void __iomem *addr, int temp)
{
writel(hi6220_thermal_temp_to_step(temp) | 0x0FFFFFF00,
addr + HI6220_TEMP0_TH);
}
static inline void hi6220_thermal_reset_set(void __iomem *addr, int temp)
{
writel(hi6220_thermal_temp_to_step(temp), addr + HI6220_TEMP0_RST_TH);
}
static inline void hi6220_thermal_reset_enable(void __iomem *addr, int value)
{
writel(value, addr + HI6220_TEMP0_RST_MSK);
}
static inline void hi6220_thermal_enable(void __iomem *addr, int value)
{
writel(value, addr + HI6220_TEMP0_EN);
}
static inline int hi6220_thermal_get_temperature(void __iomem *addr)
{
return hi6220_thermal_step_to_temp(readl(addr + HI6220_TEMP0_VALUE));
}
/*
* [0:6] lag register
*
* The temperature is coded in steps, cf. HI3660_TEMP_STEP.
*
* Min : 0x00 : 0.0 °C
* Max : 0x7F : 26.0 °C
*
*/
static inline void hi3660_thermal_set_lag(void __iomem *addr,
int id, int value)
{
writel(DIV_ROUND_UP(value, HI3660_TEMP_STEP) & 0x7F,
addr + HI3660_LAG(id));
}
static inline void hi3660_thermal_alarm_clear(void __iomem *addr,
int id, int value)
{
writel(value, addr + HI3660_INT_CLR(id));
}
static inline void hi3660_thermal_alarm_enable(void __iomem *addr,
int id, int value)
{
writel(value, addr + HI3660_INT_EN(id));
}
static inline void hi3660_thermal_alarm_set(void __iomem *addr,
int id, int value)
{
writel(value, addr + HI3660_TH(id));
}
static inline int hi3660_thermal_get_temperature(void __iomem *addr, int id)
{
return hi3660_thermal_step_to_temp(readl(addr + HI3660_TEMP(id)));
}
/*
* Temperature configuration register - Sensor selection
*
* Bits [19:12]
*
* 0x0: local sensor (default)
* 0x1: remote sensor 1 (ACPU cluster 1)
* 0x2: remote sensor 2 (ACPU cluster 0)
* 0x3: remote sensor 3 (G3D)
*/
static inline void hi6220_thermal_sensor_select(void __iomem *addr, int sensor)
{
writel((readl(addr + HI6220_TEMP0_CFG) & ~HI6220_TEMP0_CFG_SS_MSK) |
(sensor << 12), addr + HI6220_TEMP0_CFG);
}
/*
* Temperature configuration register - Hdak conversion polling interval
*
* Bits [5:4]
*
* 0x0 : 0.768 ms
* 0x1 : 6.144 ms
* 0x2 : 49.152 ms
* 0x3 : 393.216 ms
*/
static inline void hi6220_thermal_hdak_set(void __iomem *addr, int value)
{
writel((readl(addr + HI6220_TEMP0_CFG) & ~HI6220_TEMP0_CFG_HDAK_MSK) |
(value << 4), addr + HI6220_TEMP0_CFG);
}
static int hi6220_thermal_irq_handler(struct hisi_thermal_data *data)
{
hi6220_thermal_alarm_clear(data->regs, 1);
return 0;
}
static int hi3660_thermal_irq_handler(struct hisi_thermal_data *data)
{
hi3660_thermal_alarm_clear(data->regs, data->sensor.id, 1);
return 0;
}
static int hi6220_thermal_get_temp(struct hisi_thermal_data *data)
{
return hi6220_thermal_get_temperature(data->regs);
}
static int hi3660_thermal_get_temp(struct hisi_thermal_data *data)
{
return hi3660_thermal_get_temperature(data->regs, data->sensor.id);
}
static int hi6220_thermal_disable_sensor(struct hisi_thermal_data *data)
{
/* disable sensor module */
hi6220_thermal_enable(data->regs, 0);
hi6220_thermal_alarm_enable(data->regs, 0);
hi6220_thermal_reset_enable(data->regs, 0);
clk_disable_unprepare(data->clk);
return 0;
}
static int hi3660_thermal_disable_sensor(struct hisi_thermal_data *data)
{
/* disable sensor module */
hi3660_thermal_alarm_enable(data->regs, data->sensor.id, 0);
return 0;
}
static int hi6220_thermal_enable_sensor(struct hisi_thermal_data *data)
{
struct hisi_thermal_sensor *sensor = &data->sensor;
int ret;
/* enable clock for tsensor */
ret = clk_prepare_enable(data->clk);
if (ret)
return ret;
/* disable module firstly */
writel(0x0, data->regs + TEMP0_EN);
hi6220_thermal_reset_enable(data->regs, 0);
hi6220_thermal_enable(data->regs, 0);
/* select sensor id */
writel((sensor->id << 12), data->regs + TEMP0_CFG);
/* enable module */
writel(0x1, data->regs + TEMP0_EN);
usleep_range(3000, 5000);
val = readl(data->regs + TEMP0_VALUE);
val = _step_to_temp(val);
mutex_unlock(&data->thermal_lock);
return val;
}
static void hisi_thermal_enable_bind_irq_sensor
(struct hisi_thermal_data *data)
{
struct hisi_thermal_sensor *sensor;
mutex_lock(&data->thermal_lock);
sensor = &data->sensors[data->irq_bind_sensor];
hi6220_thermal_sensor_select(data->regs, sensor->id);
/* setting the hdak time */
writel(0x0, data->regs + TEMP0_CFG);
hi6220_thermal_hdak_set(data->regs, 0);
/* disable module firstly */
writel(0x0, data->regs + TEMP0_RST_MSK);
writel(0x0, data->regs + TEMP0_EN);
/* select sensor id */
writel((sensor->id << 12), data->regs + TEMP0_CFG);
/* setting lag value between current temp and the threshold */
hi6220_thermal_set_lag(data->regs, HI6220_TEMP_LAG);
/* enable for interrupt */
writel(_temp_to_step(sensor->thres_temp) | 0x0FFFFFF00,
data->regs + TEMP0_TH);
hi6220_thermal_alarm_set(data->regs, sensor->thres_temp);
writel(_temp_to_step(HISI_TEMP_RESET), data->regs + TEMP0_RST_TH);
hi6220_thermal_reset_set(data->regs, HI6220_TEMP_RESET);
/* enable module */
writel(0x1, data->regs + TEMP0_RST_MSK);
writel(0x1, data->regs + TEMP0_EN);
hi6220_thermal_reset_enable(data->regs, 1);
hi6220_thermal_enable(data->regs, 1);
writel(0x0, data->regs + TEMP0_INT_CLR);
writel(0x1, data->regs + TEMP0_INT_EN);
hi6220_thermal_alarm_clear(data->regs, 0);
hi6220_thermal_alarm_enable(data->regs, 1);
usleep_range(3000, 5000);
mutex_unlock(&data->thermal_lock);
return 0;
}
static void hisi_thermal_disable_sensor(struct hisi_thermal_data *data)
static int hi3660_thermal_enable_sensor(struct hisi_thermal_data *data)
{
mutex_lock(&data->thermal_lock);
unsigned int value;
struct hisi_thermal_sensor *sensor = &data->sensor;
/* disable sensor module */
writel(0x0, data->regs + TEMP0_INT_EN);
writel(0x0, data->regs + TEMP0_RST_MSK);
writel(0x0, data->regs + TEMP0_EN);
/* disable interrupt */
hi3660_thermal_alarm_enable(data->regs, sensor->id, 0);
mutex_unlock(&data->thermal_lock);
/* setting lag value between current temp and the threshold */
hi3660_thermal_set_lag(data->regs, sensor->id, HI3660_TEMP_LAG);
/* set interrupt threshold */
value = hi3660_thermal_temp_to_step(sensor->thres_temp);
hi3660_thermal_alarm_set(data->regs, sensor->id, value);
/* enable interrupt */
hi3660_thermal_alarm_clear(data->regs, sensor->id, 1);
hi3660_thermal_alarm_enable(data->regs, sensor->id, 1);
return 0;
}
static int hisi_thermal_get_temp(void *_sensor, int *temp)
static int hi6220_thermal_probe(struct hisi_thermal_data *data)
{
struct hisi_thermal_sensor *sensor = _sensor;
struct hisi_thermal_data *data = sensor->thermal;
struct platform_device *pdev = data->pdev;
struct device *dev = &pdev->dev;
struct resource *res;
int ret;
int sensor_id = -1, i;
long max_temp = 0;
data->get_temp = hi6220_thermal_get_temp;
data->enable_sensor = hi6220_thermal_enable_sensor;
data->disable_sensor = hi6220_thermal_disable_sensor;
data->irq_handler = hi6220_thermal_irq_handler;
*temp = hisi_thermal_get_sensor_temp(data, sensor);
sensor->sensor_temp = *temp;
for (i = 0; i < HISI_MAX_SENSORS; i++) {
if (!data->sensors[i].tzd)
continue;
if (data->sensors[i].sensor_temp >= max_temp) {
max_temp = data->sensors[i].sensor_temp;
sensor_id = i;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
data->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(data->regs)) {
dev_err(dev, "failed to get io address\n");
return PTR_ERR(data->regs);
}
/* If no sensor has been enabled, then skip to enable irq */
if (sensor_id == -1)
return 0;
mutex_lock(&data->thermal_lock);
data->irq_bind_sensor = sensor_id;
mutex_unlock(&data->thermal_lock);
dev_dbg(&data->pdev->dev, "id=%d, irq=%d, temp=%d, thres=%d\n",
sensor->id, data->irq_enabled, *temp, sensor->thres_temp);
/*
* Bind irq to sensor for two cases:
* Reenable alarm IRQ if temperature below threshold;
* if irq has been enabled, always set it;
*/
if (data->irq_enabled) {
hisi_thermal_enable_bind_irq_sensor(data);
return 0;
data->clk = devm_clk_get(dev, "thermal_clk");
if (IS_ERR(data->clk)) {
ret = PTR_ERR(data->clk);
if (ret != -EPROBE_DEFER)
dev_err(dev, "failed to get thermal clk: %d\n", ret);
return ret;
}
if (max_temp < sensor->thres_temp) {
data->irq_enabled = true;
hisi_thermal_enable_bind_irq_sensor(data);
enable_irq(data->irq);
data->irq = platform_get_irq(pdev, 0);
if (data->irq < 0)
return data->irq;
data->sensor.id = HI6220_DEFAULT_SENSOR;
return 0;
}
static int hi3660_thermal_probe(struct hisi_thermal_data *data)
{
struct platform_device *pdev = data->pdev;
struct device *dev = &pdev->dev;
struct resource *res;
data->get_temp = hi3660_thermal_get_temp;
data->enable_sensor = hi3660_thermal_enable_sensor;
data->disable_sensor = hi3660_thermal_disable_sensor;
data->irq_handler = hi3660_thermal_irq_handler;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
data->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(data->regs)) {
dev_err(dev, "failed to get io address\n");
return PTR_ERR(data->regs);
}
data->irq = platform_get_irq(pdev, 0);
if (data->irq < 0)
return data->irq;
data->sensor.id = HI3660_DEFAULT_SENSOR;
return 0;
}
static int hisi_thermal_get_temp(void *__data, int *temp)
{
struct hisi_thermal_data *data = __data;
struct hisi_thermal_sensor *sensor = &data->sensor;
*temp = data->get_temp(data);
dev_dbg(&data->pdev->dev, "id=%d, temp=%d, thres=%d\n",
sensor->id, *temp, sensor->thres_temp);
return 0;
}
@ -210,35 +447,26 @@ static const struct thermal_zone_of_device_ops hisi_of_thermal_ops = {
.get_temp = hisi_thermal_get_temp,
};
static irqreturn_t hisi_thermal_alarm_irq(int irq, void *dev)
{
struct hisi_thermal_data *data = dev;
disable_irq_nosync(irq);
data->irq_enabled = false;
return IRQ_WAKE_THREAD;
}
static irqreturn_t hisi_thermal_alarm_irq_thread(int irq, void *dev)
{
struct hisi_thermal_data *data = dev;
struct hisi_thermal_sensor *sensor;
int i;
struct hisi_thermal_sensor *sensor = &data->sensor;
int temp = 0;
mutex_lock(&data->thermal_lock);
sensor = &data->sensors[data->irq_bind_sensor];
data->irq_handler(data);
dev_crit(&data->pdev->dev, "THERMAL ALARM: T > %d\n",
sensor->thres_temp / 1000);
mutex_unlock(&data->thermal_lock);
hisi_thermal_get_temp(data, &temp);
for (i = 0; i < HISI_MAX_SENSORS; i++) {
if (!data->sensors[i].tzd)
continue;
if (temp >= sensor->thres_temp) {
dev_crit(&data->pdev->dev, "THERMAL ALARM: %d > %d\n",
temp, sensor->thres_temp);
thermal_zone_device_update(data->sensors[i].tzd,
thermal_zone_device_update(data->sensor.tzd,
THERMAL_EVENT_UNSPECIFIED);
} else {
dev_crit(&data->pdev->dev, "THERMAL ALARM stopped: %d < %d\n",
temp, sensor->thres_temp);
}
return IRQ_HANDLED;
@ -246,17 +474,14 @@ static irqreturn_t hisi_thermal_alarm_irq_thread(int irq, void *dev)
static int hisi_thermal_register_sensor(struct platform_device *pdev,
struct hisi_thermal_data *data,
struct hisi_thermal_sensor *sensor,
int index)
struct hisi_thermal_sensor *sensor)
{
int ret, i;
const struct thermal_trip *trip;
sensor->id = index;
sensor->thermal = data;
sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev,
sensor->id, sensor, &hisi_of_thermal_ops);
sensor->id, data,
&hisi_of_thermal_ops);
if (IS_ERR(sensor->tzd)) {
ret = PTR_ERR(sensor->tzd);
sensor->tzd = NULL;
@ -278,7 +503,14 @@ static int hisi_thermal_register_sensor(struct platform_device *pdev,
}
static const struct of_device_id of_hisi_thermal_match[] = {
{ .compatible = "hisilicon,tsensor" },
{
.compatible = "hisilicon,tsensor",
.data = hi6220_thermal_probe
},
{
.compatible = "hisilicon,hi3660-tsensor",
.data = hi3660_thermal_probe
},
{ /* end */ }
};
MODULE_DEVICE_TABLE(of, of_hisi_thermal_match);
@ -295,88 +527,63 @@ static void hisi_thermal_toggle_sensor(struct hisi_thermal_sensor *sensor,
static int hisi_thermal_probe(struct platform_device *pdev)
{
struct hisi_thermal_data *data;
struct resource *res;
int i;
int const (*platform_probe)(struct hisi_thermal_data *);
struct device *dev = &pdev->dev;
int ret;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
mutex_init(&data->thermal_lock);
data->pdev = pdev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
data->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(data->regs)) {
dev_err(&pdev->dev, "failed to get io address\n");
return PTR_ERR(data->regs);
}
data->irq = platform_get_irq(pdev, 0);
if (data->irq < 0)
return data->irq;
ret = devm_request_threaded_irq(&pdev->dev, data->irq,
hisi_thermal_alarm_irq,
hisi_thermal_alarm_irq_thread,
0, "hisi_thermal", data);
if (ret < 0) {
dev_err(&pdev->dev, "failed to request alarm irq: %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, data);
data->clk = devm_clk_get(&pdev->dev, "thermal_clk");
if (IS_ERR(data->clk)) {
ret = PTR_ERR(data->clk);
if (ret != -EPROBE_DEFER)
dev_err(&pdev->dev,
"failed to get thermal clk: %d\n", ret);
return ret;
platform_probe = of_device_get_match_data(dev);
if (!platform_probe) {
dev_err(dev, "failed to get probe func\n");
return -EINVAL;
}
/* enable clock for thermal */
ret = clk_prepare_enable(data->clk);
ret = platform_probe(data);
if (ret)
return ret;
ret = hisi_thermal_register_sensor(pdev, data,
&data->sensor);
if (ret) {
dev_err(&pdev->dev, "failed to enable thermal clk: %d\n", ret);
dev_err(dev, "failed to register thermal sensor: %d\n", ret);
return ret;
}
hisi_thermal_enable_bind_irq_sensor(data);
irq_get_irqchip_state(data->irq, IRQCHIP_STATE_MASKED,
&data->irq_enabled);
for (i = 0; i < HISI_MAX_SENSORS; ++i) {
ret = hisi_thermal_register_sensor(pdev, data,
&data->sensors[i], i);
if (ret)
dev_err(&pdev->dev,
"failed to register thermal sensor: %d\n", ret);
else
hisi_thermal_toggle_sensor(&data->sensors[i], true);
ret = data->enable_sensor(data);
if (ret) {
dev_err(dev, "Failed to setup the sensor: %d\n", ret);
return ret;
}
if (data->irq) {
ret = devm_request_threaded_irq(dev, data->irq, NULL,
hisi_thermal_alarm_irq_thread,
IRQF_ONESHOT, "hisi_thermal", data);
if (ret < 0) {
dev_err(dev, "failed to request alarm irq: %d\n", ret);
return ret;
}
}
hisi_thermal_toggle_sensor(&data->sensor, true);
return 0;
}
static int hisi_thermal_remove(struct platform_device *pdev)
{
struct hisi_thermal_data *data = platform_get_drvdata(pdev);
int i;
struct hisi_thermal_sensor *sensor = &data->sensor;
for (i = 0; i < HISI_MAX_SENSORS; i++) {
struct hisi_thermal_sensor *sensor = &data->sensors[i];
hisi_thermal_toggle_sensor(sensor, false);
if (!sensor->tzd)
continue;
hisi_thermal_toggle_sensor(sensor, false);
}
hisi_thermal_disable_sensor(data);
clk_disable_unprepare(data->clk);
data->disable_sensor(data);
return 0;
}
@ -386,10 +593,7 @@ static int hisi_thermal_suspend(struct device *dev)
{
struct hisi_thermal_data *data = dev_get_drvdata(dev);
hisi_thermal_disable_sensor(data);
data->irq_enabled = false;
clk_disable_unprepare(data->clk);
data->disable_sensor(data);
return 0;
}
@ -397,16 +601,8 @@ static int hisi_thermal_suspend(struct device *dev)
static int hisi_thermal_resume(struct device *dev)
{
struct hisi_thermal_data *data = dev_get_drvdata(dev);
int ret;
ret = clk_prepare_enable(data->clk);
if (ret)
return ret;
data->irq_enabled = true;
hisi_thermal_enable_bind_irq_sensor(data);
return 0;
return data->enable_sensor(data);
}
#endif

104
drivers/thermal/imx_thermal.c
View file

@ -25,6 +25,7 @@
#include <linux/slab.h>
#include <linux/thermal.h>
#include <linux/types.h>
#include <linux/nvmem-consumer.h>
#define REG_SET 0x4
#define REG_CLR 0x8
@ -94,7 +95,7 @@ struct imx_thermal_data {
struct thermal_cooling_device *cdev;
enum thermal_device_mode mode;
struct regmap *tempmon;
u32 c1, c2; /* See formula in imx_get_sensor_data() */
u32 c1, c2; /* See formula in imx_init_calib() */
int temp_passive;
int temp_critical;
int temp_max;
@ -177,7 +178,7 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
n_meas = (val & TEMPSENSE0_TEMP_CNT_MASK) >> TEMPSENSE0_TEMP_CNT_SHIFT;
/* See imx_get_sensor_data() for formula derivation */
/* See imx_init_calib() for formula derivation */
*temp = data->c2 - n_meas * data->c1;
/* Update alarm value to next higher trip point for TEMPMON_IMX6Q */
@ -346,29 +347,12 @@ static struct thermal_zone_device_ops imx_tz_ops = {
.set_trip_temp = imx_set_trip_temp,
};
static int imx_get_sensor_data(struct platform_device *pdev)
static int imx_init_calib(struct platform_device *pdev, u32 val)
{
struct imx_thermal_data *data = platform_get_drvdata(pdev);
struct regmap *map;
int t1, n1;
int ret;
u32 val;
u64 temp64;
map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
"fsl,tempmon-data");
if (IS_ERR(map)) {
ret = PTR_ERR(map);
dev_err(&pdev->dev, "failed to get sensor regmap: %d\n", ret);
return ret;
}
ret = regmap_read(map, OCOTP_ANA1, &val);
if (ret) {
dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret);
return ret;
}
if (val == 0 || val == ~0) {
dev_err(&pdev->dev, "invalid sensor calibration data\n");
return -EINVAL;
@ -405,12 +389,12 @@ static int imx_get_sensor_data(struct platform_device *pdev)
data->c1 = temp64;
data->c2 = n1 * data->c1 + 1000 * t1;
/* use OTP for thermal grade */
ret = regmap_read(map, OCOTP_MEM0, &val);
if (ret) {
dev_err(&pdev->dev, "failed to read temp grade: %d\n", ret);
return ret;
}
return 0;
}
static void imx_init_temp_grade(struct platform_device *pdev, u32 val)
{
struct imx_thermal_data *data = platform_get_drvdata(pdev);
/* The maximum die temp is specified by the Temperature Grade */
switch ((val >> 6) & 0x3) {
@ -438,6 +422,55 @@ static int imx_get_sensor_data(struct platform_device *pdev)
*/
data->temp_critical = data->temp_max - (1000 * 5);
data->temp_passive = data->temp_max - (1000 * 10);
}
static int imx_init_from_tempmon_data(struct platform_device *pdev)
{
struct regmap *map;
int ret;
u32 val;
map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
"fsl,tempmon-data");
if (IS_ERR(map)) {
ret = PTR_ERR(map);
dev_err(&pdev->dev, "failed to get sensor regmap: %d\n", ret);
return ret;
}
ret = regmap_read(map, OCOTP_ANA1, &val);
if (ret) {
dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret);
return ret;
}
ret = imx_init_calib(pdev, val);
if (ret)
return ret;
ret = regmap_read(map, OCOTP_MEM0, &val);
if (ret) {
dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret);
return ret;
}
imx_init_temp_grade(pdev, val);
return 0;
}
static int imx_init_from_nvmem_cells(struct platform_device *pdev)
{
int ret;
u32 val;
ret = nvmem_cell_read_u32(&pdev->dev, "calib", &val);
if (ret)
return ret;
imx_init_calib(pdev, val);
ret = nvmem_cell_read_u32(&pdev->dev, "temp_grade", &val);
if (ret)
return ret;
imx_init_temp_grade(pdev, val);
return 0;
}
@ -514,10 +547,21 @@ static int imx_thermal_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, data);
ret = imx_get_sensor_data(pdev);
if (ret) {
dev_err(&pdev->dev, "failed to get sensor data\n");
return ret;
if (of_find_property(pdev->dev.of_node, "nvmem-cells", NULL)) {
ret = imx_init_from_nvmem_cells(pdev);
if (ret == -EPROBE_DEFER)
return ret;
if (ret) {
dev_err(&pdev->dev, "failed to init from nvmem: %d\n",
ret);
return ret;
}
} else {
ret = imx_init_from_tempmon_data(pdev);
if (ret) {
dev_err(&pdev->dev, "failed to init from from fsl,tempmon-data\n");
return ret;
}
}
/* Make sure sensor is in known good state for measurements */

6
drivers/thermal/int340x_thermal/processor_thermal_device.c
View file

@ -30,6 +30,10 @@
/* Skylake thermal reporting device */
#define PCI_DEVICE_ID_PROC_SKL_THERMAL 0x1903
/* CannonLake thermal reporting device */
#define PCI_DEVICE_ID_PROC_CNL_THERMAL 0x5a03
#define PCI_DEVICE_ID_PROC_CFL_THERMAL 0x3E83
/* Braswell thermal reporting device */
#define PCI_DEVICE_ID_PROC_BSW_THERMAL 0x22DC
@ -461,6 +465,8 @@ static const struct pci_device_id proc_thermal_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PROC_BXT1_THERMAL)},
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PROC_BXTX_THERMAL)},
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PROC_BXTP_THERMAL)},
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PROC_CNL_THERMAL)},
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PROC_CFL_THERMAL)},
{ 0, },
};

3
drivers/thermal/intel_bxt_pmic_thermal.c
View file

@ -166,7 +166,7 @@ static irqreturn_t pmic_thermal_irq_handler(int irq, void *data)
struct pmic_thermal_data *td;
struct intel_soc_pmic *pmic;
struct regmap *regmap;
u8 reg_val, mask, irq_stat, trip;
u8 reg_val, mask, irq_stat;
u16 reg, evt_stat_reg;
int i, j, ret;
@ -201,7 +201,6 @@ static irqreturn_t pmic_thermal_irq_handler(int irq, void *data)
if (regmap_read(regmap, evt_stat_reg, &ret))
return IRQ_HANDLED;
trip = td->maps[i].trip_config[j].trip_num;
tzd = thermal_zone_get_zone_by_name(td->maps[i].handle);
if (!IS_ERR(tzd))
thermal_zone_device_update(tzd,

11
drivers/thermal/intel_pch_thermal.c
View file

@ -30,6 +30,8 @@
#define PCH_THERMAL_DID_WPT 0x9CA4 /* Wildcat Point */
#define PCH_THERMAL_DID_SKL 0x9D31 /* Skylake PCH */
#define PCH_THERMAL_DID_SKL_H 0xA131 /* Skylake PCH 100 series */
#define PCH_THERMAL_DID_CNL 0x9Df9 /* CNL PCH */
#define PCH_THERMAL_DID_CNL_H 0xA379 /* CNL-H PCH */
/* Wildcat Point-LP PCH Thermal registers */
#define WPT_TEMP 0x0000 /* Temperature */
@ -278,6 +280,7 @@ enum board_ids {
board_hsw,
board_wpt,
board_skl,
board_cnl,
};
static const struct board_info {
@ -296,6 +299,10 @@ static const struct board_info {
.name = "pch_skylake",
.ops = &pch_dev_ops_wpt,
},
[board_cnl] = {
.name = "pch_cannonlake",
.ops = &pch_dev_ops_wpt,
},
};
static int intel_pch_thermal_probe(struct pci_dev *pdev,
@ -398,6 +405,10 @@ static const struct pci_device_id intel_pch_thermal_id[] = {
.driver_data = board_skl, },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_SKL_H),
.driver_data = board_skl, },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_CNL),
.driver_data = board_cnl, },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_CNL_H),
.driver_data = board_cnl, },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, intel_pch_thermal_id);

4
drivers/thermal/intel_powerclamp.c
View file

@ -675,13 +675,13 @@ static int __init powerclamp_probe(void)
{
if (!x86_match_cpu(intel_powerclamp_ids)) {
pr_err("CPU does not support MWAIT");
pr_err("CPU does not support MWAIT\n");
return -ENODEV;
}
/* The goal for idle time alignment is to achieve package cstate. */
if (!has_pkg_state_counter()) {
pr_info("No package C-state available");
pr_info("No package C-state available\n");
return -ENODEV;
}

43
drivers/thermal/qcom-spmi-temp-alarm.c
View file

@ -125,7 +125,7 @@ static int qpnp_tm_get_temp(void *data, int *temp)
if (!temp)
return -EINVAL;
if (IS_ERR(chip->adc)) {
if (!chip->adc) {
ret = qpnp_tm_update_temp_no_adc(chip);
if (ret < 0)
return ret;
@ -224,67 +224,53 @@ static int qpnp_tm_probe(struct platform_device *pdev)
return irq;
/* ADC based measurements are optional */
chip->adc = iio_channel_get(&pdev->dev, "thermal");
if (PTR_ERR(chip->adc) == -EPROBE_DEFER)
return PTR_ERR(chip->adc);
chip->adc = devm_iio_channel_get(&pdev->dev, "thermal");
if (IS_ERR(chip->adc)) {
ret = PTR_ERR(chip->adc);
chip->adc = NULL;
if (ret == -EPROBE_DEFER)
return ret;
}
chip->base = res;
ret = qpnp_tm_read(chip, QPNP_TM_REG_TYPE, &type);
if (ret < 0) {
dev_err(&pdev->dev, "could not read type\n");
goto fail;
return ret;
}
ret = qpnp_tm_read(chip, QPNP_TM_REG_SUBTYPE, &subtype);
if (ret < 0) {
dev_err(&pdev->dev, "could not read subtype\n");
goto fail;
return ret;
}
if (type != QPNP_TM_TYPE || subtype != QPNP_TM_SUBTYPE) {
dev_err(&pdev->dev, "invalid type 0x%02x or subtype 0x%02x\n",
type, subtype);
ret = -ENODEV;
goto fail;
return -ENODEV;
}
ret = qpnp_tm_init(chip);
if (ret < 0) {
dev_err(&pdev->dev, "init failed\n");
goto fail;
return ret;
}
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, qpnp_tm_isr,
IRQF_ONESHOT, node->name, chip);
if (ret < 0)
goto fail;
return ret;
chip->tz_dev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, chip,
&qpnp_tm_sensor_ops);
if (IS_ERR(chip->tz_dev)) {
dev_err(&pdev->dev, "failed to register sensor\n");
ret = PTR_ERR(chip->tz_dev);
goto fail;
return PTR_ERR(chip->tz_dev);
}
return 0;
fail:
if (!IS_ERR(chip->adc))
iio_channel_release(chip->adc);
return ret;
}
static int qpnp_tm_remove(struct platform_device *pdev)
{
struct qpnp_tm_chip *chip = dev_get_drvdata(&pdev->dev);
if (!IS_ERR(chip->adc))
iio_channel_release(chip->adc);
return 0;
}
static const struct of_device_id qpnp_tm_match_table[] = {
@ -299,7 +285,6 @@ static struct platform_driver qpnp_tm_driver = {
.of_match_table = qpnp_tm_match_table,
},
.probe = qpnp_tm_probe,
.remove = qpnp_tm_remove,
};
module_platform_driver(qpnp_tm_driver);

34
drivers/thermal/rcar_gen3_thermal.c
View file

@ -24,6 +24,7 @@
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/spinlock.h>
#include <linux/sys_soc.h>
#include <linux/thermal.h>
#include "thermal_core.h"
@ -90,10 +91,6 @@ struct rcar_gen3_thermal_priv {
struct rcar_gen3_thermal_tsc *tscs[TSC_MAX_NUM];
unsigned int num_tscs;
spinlock_t lock; /* Protect interrupts on and off */
const struct rcar_gen3_thermal_data *data;
};
struct rcar_gen3_thermal_data {
void (*thermal_init)(struct rcar_gen3_thermal_tsc *tsc);
};
@ -278,7 +275,12 @@ static irqreturn_t rcar_gen3_thermal_irq_thread(int irq, void *data)
return IRQ_HANDLED;
}
static void r8a7795_thermal_init(struct rcar_gen3_thermal_tsc *tsc)
static const struct soc_device_attribute r8a7795es1[] = {
{ .soc_id = "r8a7795", .revision = "ES1.*" },
{ /* sentinel */ }
};
static void rcar_gen3_thermal_init_r8a7795es1(struct rcar_gen3_thermal_tsc *tsc)
{
rcar_gen3_thermal_write(tsc, REG_GEN3_CTSR, CTSR_THBGR);
rcar_gen3_thermal_write(tsc, REG_GEN3_CTSR, 0x0);
@ -303,7 +305,7 @@ static void r8a7795_thermal_init(struct rcar_gen3_thermal_tsc *tsc)
usleep_range(1000, 2000);
}
static void r8a7796_thermal_init(struct rcar_gen3_thermal_tsc *tsc)
static void rcar_gen3_thermal_init(struct rcar_gen3_thermal_tsc *tsc)
{
u32 reg_val;
@ -324,17 +326,9 @@ static void r8a7796_thermal_init(struct rcar_gen3_thermal_tsc *tsc)
usleep_range(1000, 2000);
}
static const struct rcar_gen3_thermal_data r8a7795_data = {
.thermal_init = r8a7795_thermal_init,
};
static const struct rcar_gen3_thermal_data r8a7796_data = {
.thermal_init = r8a7796_thermal_init,
};
static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
{ .compatible = "renesas,r8a7795-thermal", .data = &r8a7795_data},
{ .compatible = "renesas,r8a7796-thermal", .data = &r8a7796_data},
{ .compatible = "renesas,r8a7795-thermal", },
{ .compatible = "renesas,r8a7796-thermal", },
{},
};
MODULE_DEVICE_TABLE(of, rcar_gen3_thermal_dt_ids);
@ -371,7 +365,9 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
priv->data = of_device_get_match_data(dev);
priv->thermal_init = rcar_gen3_thermal_init;
if (soc_device_match(r8a7795es1))
priv->thermal_init = rcar_gen3_thermal_init_r8a7795es1;
spin_lock_init(&priv->lock);
@ -423,7 +419,7 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
priv->tscs[i] = tsc;
priv->data->thermal_init(tsc);
priv->thermal_init(tsc);
rcar_gen3_thermal_calc_coefs(&tsc->coef, ptat, thcode[i]);
zone = devm_thermal_zone_of_sensor_register(dev, i, tsc,
@ -476,7 +472,7 @@ static int __maybe_unused rcar_gen3_thermal_resume(struct device *dev)
for (i = 0; i < priv->num_tscs; i++) {
struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i];
priv->data->thermal_init(tsc);
priv->thermal_init(tsc);
rcar_gen3_thermal_set_trips(tsc, tsc->low, tsc->high);
}

67
drivers/thermal/rockchip_thermal.c
View file

@ -242,6 +242,45 @@ struct tsadc_table {
int temp;
};
static const struct tsadc_table rv1108_table[] = {
{0, -40000},
{374, -40000},
{382, -35000},
{389, -30000},
{397, -25000},
{405, -20000},
{413, -15000},
{421, -10000},
{429, -5000},
{436, 0},
{444, 5000},
{452, 10000},
{460, 15000},
{468, 20000},
{476, 25000},
{483, 30000},
{491, 35000},
{499, 40000},
{507, 45000},
{515, 50000},
{523, 55000},
{531, 60000},
{539, 65000},
{547, 70000},
{555, 75000},
{562, 80000},
{570, 85000},
{578, 90000},
{586, 95000},
{594, 100000},
{602, 105000},
{610, 110000},
{618, 115000},
{626, 120000},
{634, 125000},
{TSADCV2_DATA_MASK, 125000},
};
static const struct tsadc_table rk3228_code_table[] = {
{0, -40000},
{588, -40000},
@ -779,6 +818,30 @@ static void rk_tsadcv2_tshut_mode(int chn, void __iomem *regs,
writel_relaxed(val, regs + TSADCV2_INT_EN);
}
static const struct rockchip_tsadc_chip rv1108_tsadc_data = {
.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
.chn_num = 1, /* one channel for tsadc */
.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
.tshut_temp = 95000,
.initialize = rk_tsadcv2_initialize,
.irq_ack = rk_tsadcv3_irq_ack,
.control = rk_tsadcv3_control,
.get_temp = rk_tsadcv2_get_temp,
.set_alarm_temp = rk_tsadcv2_alarm_temp,
.set_tshut_temp = rk_tsadcv2_tshut_temp,
.set_tshut_mode = rk_tsadcv2_tshut_mode,
.table = {
.id = rv1108_table,
.length = ARRAY_SIZE(rv1108_table),
.data_mask = TSADCV2_DATA_MASK,
.mode = ADC_INCREMENT,
},
};
static const struct rockchip_tsadc_chip rk3228_tsadc_data = {
.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
.chn_num = 1, /* one channel for tsadc */
@ -927,6 +990,10 @@ static const struct rockchip_tsadc_chip rk3399_tsadc_data = {
};
static const struct of_device_id of_rockchip_thermal_match[] = {
{
.compatible = "rockchip,rv1108-tsadc",
.data = (void *)&rv1108_tsadc_data,
},
{
.compatible = "rockchip,rk3228-tsadc",
.data = (void *)&rk3228_tsadc_data,

11
drivers/thermal/step_wise.c
View file

@ -31,8 +31,7 @@
* If the temperature is higher than a trip point,
* a. if the trend is THERMAL_TREND_RAISING, use higher cooling
* state for this trip point
* b. if the trend is THERMAL_TREND_DROPPING, use lower cooling
* state for this trip point
* b. if the trend is THERMAL_TREND_DROPPING, do nothing
* c. if the trend is THERMAL_TREND_RAISE_FULL, use upper limit
* for this trip point
* d. if the trend is THERMAL_TREND_DROP_FULL, use lower limit
@ -94,9 +93,11 @@ static unsigned long get_target_state(struct thermal_instance *instance,
if (!throttle)
next_target = THERMAL_NO_TARGET;
} else {
next_target = cur_state - 1;
if (next_target > instance->upper)
next_target = instance->upper;
if (!throttle) {
next_target = cur_state - 1;
if (next_target > instance->upper)
next_target = instance->upper;
}
}
break;
case THERMAL_TREND_DROP_FULL:

2
drivers/thermal/tegra/soctherm.c
View file

@ -483,7 +483,7 @@ static int throttrip_program(struct device *dev,
unsigned int throt;
u32 r, reg_off;
if (!dev || !sg || !stc || !stc->init)
if (!sg || !stc || !stc->init)
return -EINVAL;
temp = enforce_temp_range(dev, trip_temp) / ts->soc->thresh_grain;

24
drivers/thermal/thermal-generic-adc.c
View file

@ -126,37 +126,22 @@ static int gadc_thermal_probe(struct platform_device *pdev)
gti->dev = &pdev->dev;
platform_set_drvdata(pdev, gti);
gti->channel = iio_channel_get(&pdev->dev, "sensor-channel");
gti->channel = devm_iio_channel_get(&pdev->dev, "sensor-channel");
if (IS_ERR(gti->channel)) {
ret = PTR_ERR(gti->channel);
dev_err(&pdev->dev, "IIO channel not found: %d\n", ret);
return ret;
}
gti->tz_dev = thermal_zone_of_sensor_register(&pdev->dev, 0,
gti, &gadc_thermal_ops);
gti->tz_dev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, gti,
&gadc_thermal_ops);
if (IS_ERR(gti->tz_dev)) {
ret = PTR_ERR(gti->tz_dev);
dev_err(&pdev->dev, "Thermal zone sensor register failed: %d\n",
ret);
goto sensor_fail;
return ret;
}
return 0;
sensor_fail:
iio_channel_release(gti->channel);
return ret;
}
static int gadc_thermal_remove(struct platform_device *pdev)
{
struct gadc_thermal_info *gti = platform_get_drvdata(pdev);
thermal_zone_of_sensor_unregister(&pdev->dev, gti->tz_dev);
iio_channel_release(gti->channel);
return 0;
}
@ -172,7 +157,6 @@ static struct platform_driver gadc_thermal_driver = {
.of_match_table = of_adc_thermal_match,
},
.probe = gadc_thermal_probe,
.remove = gadc_thermal_remove,
};
module_platform_driver(gadc_thermal_driver);

3
drivers/thermal/ti-soc-thermal/ti-thermal-common.c
View file

@ -278,7 +278,8 @@ int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
if (data) {
cpufreq_cooling_unregister(data->cool_dev);
cpufreq_cpu_put(data->policy);
if (data->policy)
cpufreq_cpu_put(data->policy);
}
return 0;