forked from Minki/linux
Merge branch 'for_3.12/exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into exynos
This commit is contained in:
Zhang Rui
commit
9c532d1710
55
Documentation/devicetree/bindings/thermal/exynos-thermal.txt
Normal file
55
Documentation/devicetree/bindings/thermal/exynos-thermal.txt
Normal file
@ -0,0 +1,55 @@
|
||||
* Exynos Thermal Management Unit (TMU)
|
||||
|
||||
** Required properties:
|
||||
|
||||
- compatible : One of the following:
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||||
"samsung,exynos4412-tmu"
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"samsung,exynos4210-tmu"
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||||
"samsung,exynos5250-tmu"
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||||
"samsung,exynos5440-tmu"
|
||||
- interrupt-parent : The phandle for the interrupt controller
|
||||
- reg : Address range of the thermal registers. For soc's which has multiple
|
||||
instances of TMU and some registers are shared across all TMU's like
|
||||
interrupt related then 2 set of register has to supplied. First set
|
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belongs to each instance of TMU and second set belongs to common TMU
|
||||
registers.
|
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- interrupts : Should contain interrupt for thermal system
|
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- clocks : The main clock for TMU device
|
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- clock-names : Thermal system clock name
|
||||
- vtmu-supply: This entry is optional and provides the regulator node supplying
|
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voltage to TMU. If needed this entry can be placed inside
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board/platform specific dts file.
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||||
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Example 1):
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tmu@100C0000 {
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compatible = "samsung,exynos4412-tmu";
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interrupt-parent = <&combiner>;
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reg = <0x100C0000 0x100>;
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interrupts = <2 4>;
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clocks = <&clock 383>;
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clock-names = "tmu_apbif";
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status = "disabled";
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vtmu-supply = <&tmu_regulator_node>;
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};
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Example 2):
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tmuctrl_0: tmuctrl@160118 {
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compatible = "samsung,exynos5440-tmu";
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reg = <0x160118 0x230>, <0x160368 0x10>;
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interrupts = <0 58 0>;
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clocks = <&clock 21>;
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clock-names = "tmu_apbif";
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};
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Note: For multi-instance tmu each instance should have an alias correctly
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numbered in "aliases" node.
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Example:
|
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|
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aliases {
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tmuctrl0 = &tmuctrl_0;
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tmuctrl1 = &tmuctrl_1;
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tmuctrl2 = &tmuctrl_2;
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};
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@ -1,17 +1,17 @@
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Kernel driver exynos4_tmu
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Kernel driver exynos_tmu
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=================
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Supported chips:
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* ARM SAMSUNG EXYNOS4 series of SoC
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Prefix: 'exynos4-tmu'
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* ARM SAMSUNG EXYNOS4, EXYNOS5 series of SoC
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Datasheet: Not publicly available
|
||||
|
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Authors: Donggeun Kim <dg77.kim@samsung.com>
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Authors: Amit Daniel <amit.daniel@samsung.com>
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|
||||
Description
|
||||
-----------
|
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TMU controller Description:
|
||||
---------------------------
|
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|
||||
This driver allows to read temperature inside SAMSUNG EXYNOS4 series of SoC.
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This driver allows to read temperature inside SAMSUNG EXYNOS4/5 series of SoC.
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||||
The chip only exposes the measured 8-bit temperature code value
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through a register.
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@ -34,9 +34,9 @@ The three equations are:
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||||
TI2: Trimming info for 85 degree Celsius (stored at TRIMINFO register)
|
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Temperature code measured at 85 degree Celsius which is unchanged
|
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|
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TMU(Thermal Management Unit) in EXYNOS4 generates interrupt
|
||||
TMU(Thermal Management Unit) in EXYNOS4/5 generates interrupt
|
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when temperature exceeds pre-defined levels.
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The maximum number of configurable threshold is four.
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The maximum number of configurable threshold is five.
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The threshold levels are defined as follows:
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Level_0: current temperature > trigger_level_0 + threshold
|
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Level_1: current temperature > trigger_level_1 + threshold
|
||||
@ -47,6 +47,31 @@ The threshold levels are defined as follows:
|
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through the corresponding registers.
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||||
When an interrupt occurs, this driver notify kernel thermal framework
|
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with the function exynos4_report_trigger.
|
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with the function exynos_report_trigger.
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Although an interrupt condition for level_0 can be set,
|
||||
it can be used to synchronize the cooling action.
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|
||||
TMU driver description:
|
||||
-----------------------
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The exynos thermal driver is structured as,
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|
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Kernel Core thermal framework
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(thermal_core.c, step_wise.c, cpu_cooling.c)
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||||
^
|
||||
|
|
||||
|
|
||||
TMU configuration data -------> TMU Driver <------> Exynos Core thermal wrapper
|
||||
(exynos_tmu_data.c) (exynos_tmu.c) (exynos_thermal_common.c)
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(exynos_tmu_data.h) (exynos_tmu.h) (exynos_thermal_common.h)
|
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|
||||
a) TMU configuration data: This consist of TMU register offsets/bitfields
|
||||
described through structure exynos_tmu_registers. Also several
|
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other platform data (struct exynos_tmu_platform_data) members
|
||||
are used to configure the TMU.
|
||||
b) TMU driver: This component initialises the TMU controller and sets different
|
||||
thresholds. It invokes core thermal implementation with the call
|
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exynos_report_trigger.
|
||||
c) Exynos Core thermal wrapper: This provides 3 wrapper function to use the
|
||||
Kernel core thermal framework. They are exynos_unregister_thermal,
|
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exynos_register_thermal and exynos_report_trigger.
|
||||
|
||||
@ -114,14 +114,6 @@ config KIRKWOOD_THERMAL
|
||||
Support for the Kirkwood thermal sensor driver into the Linux thermal
|
||||
framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
|
||||
|
||||
config EXYNOS_THERMAL
|
||||
tristate "Temperature sensor on Samsung EXYNOS"
|
||||
depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5)
|
||||
depends on CPU_THERMAL
|
||||
help
|
||||
If you say yes here you get support for TMU (Thermal Management
|
||||
Unit) on SAMSUNG EXYNOS series of SoC.
|
||||
|
||||
config DOVE_THERMAL
|
||||
tristate "Temperature sensor on Marvell Dove SoCs"
|
||||
depends on ARCH_DOVE
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||||
@ -184,4 +176,9 @@ menu "Texas Instruments thermal drivers"
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source "drivers/thermal/ti-soc-thermal/Kconfig"
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||||
endmenu
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||||
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||||
menu "Samsung thermal drivers"
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depends on PLAT_SAMSUNG
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||||
source "drivers/thermal/samsung/Kconfig"
|
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endmenu
|
||||
|
||||
endif
|
||||
|
||||
@ -17,7 +17,7 @@ thermal_sys-$(CONFIG_CPU_THERMAL) += cpu_cooling.o
|
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obj-$(CONFIG_SPEAR_THERMAL) += spear_thermal.o
|
||||
obj-$(CONFIG_RCAR_THERMAL) += rcar_thermal.o
|
||||
obj-$(CONFIG_KIRKWOOD_THERMAL) += kirkwood_thermal.o
|
||||
obj-$(CONFIG_EXYNOS_THERMAL) += exynos_thermal.o
|
||||
obj-y += samsung/
|
||||
obj-$(CONFIG_DOVE_THERMAL) += dove_thermal.o
|
||||
obj-$(CONFIG_DB8500_THERMAL) += db8500_thermal.o
|
||||
obj-$(CONFIG_ARMADA_THERMAL) += armada_thermal.o
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
18
drivers/thermal/samsung/Kconfig
Normal file
18
drivers/thermal/samsung/Kconfig
Normal file
@ -0,0 +1,18 @@
|
||||
config EXYNOS_THERMAL
|
||||
tristate "Exynos thermal management unit driver"
|
||||
depends on ARCH_HAS_BANDGAP
|
||||
help
|
||||
If you say yes here you get support for the TMU (Thermal Management
|
||||
Unit) driver for SAMSUNG EXYNOS series of soc. This driver initialises
|
||||
the TMU, reports temperature and handles cooling action if defined.
|
||||
This driver uses the exynos core thermal API's and TMU configuration
|
||||
data from the supported soc's.
|
||||
|
||||
config EXYNOS_THERMAL_CORE
|
||||
bool "Core thermal framework support for EXYNOS SOC's"
|
||||
depends on EXYNOS_THERMAL
|
||||
help
|
||||
If you say yes here you get support for EXYNOS TMU
|
||||
(Thermal Management Unit) common registration/unregistration
|
||||
functions to the core thermal layer and also to use the generic
|
||||
cpu cooling API's.
|
||||
7
drivers/thermal/samsung/Makefile
Normal file
7
drivers/thermal/samsung/Makefile
Normal file
@ -0,0 +1,7 @@
|
||||
#
|
||||
# Samsung thermal specific Makefile
|
||||
#
|
||||
obj-$(CONFIG_EXYNOS_THERMAL) += exynos_thermal.o
|
||||
exynos_thermal-y := exynos_tmu.o
|
||||
exynos_thermal-y += exynos_tmu_data.o
|
||||
exynos_thermal-$(CONFIG_EXYNOS_THERMAL_CORE) += exynos_thermal_common.o
|
||||
432
drivers/thermal/samsung/exynos_thermal_common.c
Normal file
432
drivers/thermal/samsung/exynos_thermal_common.c
Normal file
@ -0,0 +1,432 @@
|
||||
/*
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||||
* exynos_thermal_common.c - Samsung EXYNOS common thermal file
|
||||
*
|
||||
* Copyright (C) 2013 Samsung Electronics
|
||||
* Amit Daniel Kachhap <amit.daniel@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/cpu_cooling.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/thermal.h>
|
||||
|
||||
#include "exynos_thermal_common.h"
|
||||
|
||||
struct exynos_thermal_zone {
|
||||
enum thermal_device_mode mode;
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||||
struct thermal_zone_device *therm_dev;
|
||||
struct thermal_cooling_device *cool_dev[MAX_COOLING_DEVICE];
|
||||
unsigned int cool_dev_size;
|
||||
struct platform_device *exynos4_dev;
|
||||
struct thermal_sensor_conf *sensor_conf;
|
||||
bool bind;
|
||||
};
|
||||
|
||||
/* Get mode callback functions for thermal zone */
|
||||
static int exynos_get_mode(struct thermal_zone_device *thermal,
|
||||
enum thermal_device_mode *mode)
|
||||
{
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
if (th_zone)
|
||||
*mode = th_zone->mode;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Set mode callback functions for thermal zone */
|
||||
static int exynos_set_mode(struct thermal_zone_device *thermal,
|
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enum thermal_device_mode mode)
|
||||
{
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
if (!th_zone) {
|
||||
dev_err(th_zone->sensor_conf->dev,
|
||||
"thermal zone not registered\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
mutex_lock(&thermal->lock);
|
||||
|
||||
if (mode == THERMAL_DEVICE_ENABLED &&
|
||||
!th_zone->sensor_conf->trip_data.trigger_falling)
|
||||
thermal->polling_delay = IDLE_INTERVAL;
|
||||
else
|
||||
thermal->polling_delay = 0;
|
||||
|
||||
mutex_unlock(&thermal->lock);
|
||||
|
||||
th_zone->mode = mode;
|
||||
thermal_zone_device_update(thermal);
|
||||
dev_dbg(th_zone->sensor_conf->dev,
|
||||
"thermal polling set for duration=%d msec\n",
|
||||
thermal->polling_delay);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Get trip type callback functions for thermal zone */
|
||||
static int exynos_get_trip_type(struct thermal_zone_device *thermal, int trip,
|
||||
enum thermal_trip_type *type)
|
||||
{
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
int max_trip = th_zone->sensor_conf->trip_data.trip_count;
|
||||
int trip_type;
|
||||
|
||||
if (trip < 0 || trip >= max_trip)
|
||||
return -EINVAL;
|
||||
|
||||
trip_type = th_zone->sensor_conf->trip_data.trip_type[trip];
|
||||
|
||||
if (trip_type == SW_TRIP)
|
||||
*type = THERMAL_TRIP_CRITICAL;
|
||||
else if (trip_type == THROTTLE_ACTIVE)
|
||||
*type = THERMAL_TRIP_ACTIVE;
|
||||
else if (trip_type == THROTTLE_PASSIVE)
|
||||
*type = THERMAL_TRIP_PASSIVE;
|
||||
else
|
||||
return -EINVAL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Get trip temperature callback functions for thermal zone */
|
||||
static int exynos_get_trip_temp(struct thermal_zone_device *thermal, int trip,
|
||||
unsigned long *temp)
|
||||
{
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
int max_trip = th_zone->sensor_conf->trip_data.trip_count;
|
||||
|
||||
if (trip < 0 || trip >= max_trip)
|
||||
return -EINVAL;
|
||||
|
||||
*temp = th_zone->sensor_conf->trip_data.trip_val[trip];
|
||||
/* convert the temperature into millicelsius */
|
||||
*temp = *temp * MCELSIUS;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Get critical temperature callback functions for thermal zone */
|
||||
static int exynos_get_crit_temp(struct thermal_zone_device *thermal,
|
||||
unsigned long *temp)
|
||||
{
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
int max_trip = th_zone->sensor_conf->trip_data.trip_count;
|
||||
/* Get the temp of highest trip*/
|
||||
return exynos_get_trip_temp(thermal, max_trip - 1, temp);
|
||||
}
|
||||
|
||||
/* Bind callback functions for thermal zone */
|
||||
static int exynos_bind(struct thermal_zone_device *thermal,
|
||||
struct thermal_cooling_device *cdev)
|
||||
{
|
||||
int ret = 0, i, tab_size, level;
|
||||
struct freq_clip_table *tab_ptr, *clip_data;
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
struct thermal_sensor_conf *data = th_zone->sensor_conf;
|
||||
|
||||
tab_ptr = (struct freq_clip_table *)data->cooling_data.freq_data;
|
||||
tab_size = data->cooling_data.freq_clip_count;
|
||||
|
||||
if (tab_ptr == NULL || tab_size == 0)
|
||||
return 0;
|
||||
|
||||
/* find the cooling device registered*/
|
||||
for (i = 0; i < th_zone->cool_dev_size; i++)
|
||||
if (cdev == th_zone->cool_dev[i])
|
||||
break;
|
||||
|
||||
/* No matching cooling device */
|
||||
if (i == th_zone->cool_dev_size)
|
||||
return 0;
|
||||
|
||||
/* Bind the thermal zone to the cpufreq cooling device */
|
||||
for (i = 0; i < tab_size; i++) {
|
||||
clip_data = (struct freq_clip_table *)&(tab_ptr[i]);
|
||||
level = cpufreq_cooling_get_level(0, clip_data->freq_clip_max);
|
||||
if (level == THERMAL_CSTATE_INVALID)
|
||||
return 0;
|
||||
switch (GET_ZONE(i)) {
|
||||
case MONITOR_ZONE:
|
||||
case WARN_ZONE:
|
||||
if (thermal_zone_bind_cooling_device(thermal, i, cdev,
|
||||
level, 0)) {
|
||||
dev_err(data->dev,
|
||||
"error unbinding cdev inst=%d\n", i);
|
||||
ret = -EINVAL;
|
||||
}
|
||||
th_zone->bind = true;
|
||||
break;
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Unbind callback functions for thermal zone */
|
||||
static int exynos_unbind(struct thermal_zone_device *thermal,
|
||||
struct thermal_cooling_device *cdev)
|
||||
{
|
||||
int ret = 0, i, tab_size;
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
struct thermal_sensor_conf *data = th_zone->sensor_conf;
|
||||
|
||||
if (th_zone->bind == false)
|
||||
return 0;
|
||||
|
||||
tab_size = data->cooling_data.freq_clip_count;
|
||||
|
||||
if (tab_size == 0)
|
||||
return 0;
|
||||
|
||||
/* find the cooling device registered*/
|
||||
for (i = 0; i < th_zone->cool_dev_size; i++)
|
||||
if (cdev == th_zone->cool_dev[i])
|
||||
break;
|
||||
|
||||
/* No matching cooling device */
|
||||
if (i == th_zone->cool_dev_size)
|
||||
return 0;
|
||||
|
||||
/* Bind the thermal zone to the cpufreq cooling device */
|
||||
for (i = 0; i < tab_size; i++) {
|
||||
switch (GET_ZONE(i)) {
|
||||
case MONITOR_ZONE:
|
||||
case WARN_ZONE:
|
||||
if (thermal_zone_unbind_cooling_device(thermal, i,
|
||||
cdev)) {
|
||||
dev_err(data->dev,
|
||||
"error unbinding cdev inst=%d\n", i);
|
||||
ret = -EINVAL;
|
||||
}
|
||||
th_zone->bind = false;
|
||||
break;
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Get temperature callback functions for thermal zone */
|
||||
static int exynos_get_temp(struct thermal_zone_device *thermal,
|
||||
unsigned long *temp)
|
||||
{
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
void *data;
|
||||
|
||||
if (!th_zone->sensor_conf) {
|
||||
dev_err(th_zone->sensor_conf->dev,
|
||||
"Temperature sensor not initialised\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
data = th_zone->sensor_conf->driver_data;
|
||||
*temp = th_zone->sensor_conf->read_temperature(data);
|
||||
/* convert the temperature into millicelsius */
|
||||
*temp = *temp * MCELSIUS;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Get temperature callback functions for thermal zone */
|
||||
static int exynos_set_emul_temp(struct thermal_zone_device *thermal,
|
||||
unsigned long temp)
|
||||
{
|
||||
void *data;
|
||||
int ret = -EINVAL;
|
||||
struct exynos_thermal_zone *th_zone = thermal->devdata;
|
||||
|
||||
if (!th_zone->sensor_conf) {
|
||||
dev_err(th_zone->sensor_conf->dev,
|
||||
"Temperature sensor not initialised\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
data = th_zone->sensor_conf->driver_data;
|
||||
if (th_zone->sensor_conf->write_emul_temp)
|
||||
ret = th_zone->sensor_conf->write_emul_temp(data, temp);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Get the temperature trend */
|
||||
static int exynos_get_trend(struct thermal_zone_device *thermal,
|
||||
int trip, enum thermal_trend *trend)
|
||||
{
|
||||
int ret;
|
||||
unsigned long trip_temp;
|
||||
|
||||
ret = exynos_get_trip_temp(thermal, trip, &trip_temp);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
if (thermal->temperature >= trip_temp)
|
||||
*trend = THERMAL_TREND_RAISE_FULL;
|
||||
else
|
||||
*trend = THERMAL_TREND_DROP_FULL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
/* Operation callback functions for thermal zone */
|
||||
static struct thermal_zone_device_ops const exynos_dev_ops = {
|
||||
.bind = exynos_bind,
|
||||
.unbind = exynos_unbind,
|
||||
.get_temp = exynos_get_temp,
|
||||
.set_emul_temp = exynos_set_emul_temp,
|
||||
.get_trend = exynos_get_trend,
|
||||
.get_mode = exynos_get_mode,
|
||||
.set_mode = exynos_set_mode,
|
||||
.get_trip_type = exynos_get_trip_type,
|
||||
.get_trip_temp = exynos_get_trip_temp,
|
||||
.get_crit_temp = exynos_get_crit_temp,
|
||||
};
|
||||
|
||||
/*
|
||||
* This function may be called from interrupt based temperature sensor
|
||||
* when threshold is changed.
|
||||
*/
|
||||
void exynos_report_trigger(struct thermal_sensor_conf *conf)
|
||||
{
|
||||
unsigned int i;
|
||||
char data[10];
|
||||
char *envp[] = { data, NULL };
|
||||
struct exynos_thermal_zone *th_zone;
|
||||
|
||||
if (!conf || !conf->pzone_data) {
|
||||
pr_err("Invalid temperature sensor configuration data\n");
|
||||
return;
|
||||
}
|
||||
|
||||
th_zone = conf->pzone_data;
|
||||
if (th_zone->therm_dev)
|
||||
return;
|
||||
|
||||
if (th_zone->bind == false) {
|
||||
for (i = 0; i < th_zone->cool_dev_size; i++) {
|
||||
if (!th_zone->cool_dev[i])
|
||||
continue;
|
||||
exynos_bind(th_zone->therm_dev,
|
||||
th_zone->cool_dev[i]);
|
||||
}
|
||||
}
|
||||
|
||||
thermal_zone_device_update(th_zone->therm_dev);
|
||||
|
||||
mutex_lock(&th_zone->therm_dev->lock);
|
||||
/* Find the level for which trip happened */
|
||||
for (i = 0; i < th_zone->sensor_conf->trip_data.trip_count; i++) {
|
||||
if (th_zone->therm_dev->last_temperature <
|
||||
th_zone->sensor_conf->trip_data.trip_val[i] * MCELSIUS)
|
||||
break;
|
||||
}
|
||||
|
||||
if (th_zone->mode == THERMAL_DEVICE_ENABLED &&
|
||||
!th_zone->sensor_conf->trip_data.trigger_falling) {
|
||||
if (i > 0)
|
||||
th_zone->therm_dev->polling_delay = ACTIVE_INTERVAL;
|
||||
else
|
||||
th_zone->therm_dev->polling_delay = IDLE_INTERVAL;
|
||||
}
|
||||
|
||||
snprintf(data, sizeof(data), "%u", i);
|
||||
kobject_uevent_env(&th_zone->therm_dev->device.kobj, KOBJ_CHANGE, envp);
|
||||
mutex_unlock(&th_zone->therm_dev->lock);
|
||||
}
|
||||
|
||||
/* Register with the in-kernel thermal management */
|
||||
int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf)
|
||||
{
|
||||
int ret;
|
||||
struct cpumask mask_val;
|
||||
struct exynos_thermal_zone *th_zone;
|
||||
|
||||
if (!sensor_conf || !sensor_conf->read_temperature) {
|
||||
pr_err("Temperature sensor not initialised\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
th_zone = devm_kzalloc(sensor_conf->dev,
|
||||
sizeof(struct exynos_thermal_zone), GFP_KERNEL);
|
||||
if (!th_zone)
|
||||
return -ENOMEM;
|
||||
|
||||
th_zone->sensor_conf = sensor_conf;
|
||||
/*
|
||||
* TODO: 1) Handle multiple cooling devices in a thermal zone
|
||||
* 2) Add a flag/name in cooling info to map to specific
|
||||
* sensor
|
||||
*/
|
||||
if (sensor_conf->cooling_data.freq_clip_count > 0) {
|
||||
cpumask_set_cpu(0, &mask_val);
|
||||
th_zone->cool_dev[th_zone->cool_dev_size] =
|
||||
cpufreq_cooling_register(&mask_val);
|
||||
if (IS_ERR(th_zone->cool_dev[th_zone->cool_dev_size])) {
|
||||
dev_err(sensor_conf->dev,
|
||||
"Failed to register cpufreq cooling device\n");
|
||||
ret = -EINVAL;
|
||||
goto err_unregister;
|
||||
}
|
||||
th_zone->cool_dev_size++;
|
||||
}
|
||||
|
||||
th_zone->therm_dev = thermal_zone_device_register(
|
||||
sensor_conf->name, sensor_conf->trip_data.trip_count,
|
||||
0, th_zone, &exynos_dev_ops, NULL, 0,
|
||||
sensor_conf->trip_data.trigger_falling ? 0 :
|
||||
IDLE_INTERVAL);
|
||||
|
||||
if (IS_ERR(th_zone->therm_dev)) {
|
||||
dev_err(sensor_conf->dev,
|
||||
"Failed to register thermal zone device\n");
|
||||
ret = PTR_ERR(th_zone->therm_dev);
|
||||
goto err_unregister;
|
||||
}
|
||||
th_zone->mode = THERMAL_DEVICE_ENABLED;
|
||||
sensor_conf->pzone_data = th_zone;
|
||||
|
||||
dev_info(sensor_conf->dev,
|
||||
"Exynos: Thermal zone(%s) registered\n", sensor_conf->name);
|
||||
|
||||
return 0;
|
||||
|
||||
err_unregister:
|
||||
exynos_unregister_thermal(sensor_conf);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Un-Register with the in-kernel thermal management */
|
||||
void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf)
|
||||
{
|
||||
int i;
|
||||
struct exynos_thermal_zone *th_zone;
|
||||
|
||||
if (!sensor_conf || !sensor_conf->pzone_data) {
|
||||
pr_err("Invalid temperature sensor configuration data\n");
|
||||
return;
|
||||
}
|
||||
|
||||
th_zone = sensor_conf->pzone_data;
|
||||
|
||||
if (th_zone->therm_dev)
|
||||
thermal_zone_device_unregister(th_zone->therm_dev);
|
||||
|
||||
for (i = 0; i < th_zone->cool_dev_size; i++) {
|
||||
if (th_zone->cool_dev[i])
|
||||
cpufreq_cooling_unregister(th_zone->cool_dev[i]);
|
||||
}
|
||||
|
||||
dev_info(sensor_conf->dev,
|
||||
"Exynos: Kernel Thermal management unregistered\n");
|
||||
}
|
||||
107
drivers/thermal/samsung/exynos_thermal_common.h
Normal file
107
drivers/thermal/samsung/exynos_thermal_common.h
Normal file
@ -0,0 +1,107 @@
|
||||
/*
|
||||
* exynos_thermal_common.h - Samsung EXYNOS common header file
|
||||
*
|
||||
* Copyright (C) 2013 Samsung Electronics
|
||||
* Amit Daniel Kachhap <amit.daniel@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _EXYNOS_THERMAL_COMMON_H
|
||||
#define _EXYNOS_THERMAL_COMMON_H
|
||||
|
||||
/* In-kernel thermal framework related macros & definations */
|
||||
#define SENSOR_NAME_LEN 16
|
||||
#define MAX_TRIP_COUNT 8
|
||||
#define MAX_COOLING_DEVICE 4
|
||||
#define MAX_THRESHOLD_LEVS 5
|
||||
|
||||
#define ACTIVE_INTERVAL 500
|
||||
#define IDLE_INTERVAL 10000
|
||||
#define MCELSIUS 1000
|
||||
|
||||
/* CPU Zone information */
|
||||
#define PANIC_ZONE 4
|
||||
#define WARN_ZONE 3
|
||||
#define MONITOR_ZONE 2
|
||||
#define SAFE_ZONE 1
|
||||
|
||||
#define GET_ZONE(trip) (trip + 2)
|
||||
#define GET_TRIP(zone) (zone - 2)
|
||||
|
||||
enum trigger_type {
|
||||
THROTTLE_ACTIVE = 1,
|
||||
THROTTLE_PASSIVE,
|
||||
SW_TRIP,
|
||||
HW_TRIP,
|
||||
};
|
||||
|
||||
/**
|
||||
* struct freq_clip_table
|
||||
* @freq_clip_max: maximum frequency allowed for this cooling state.
|
||||
* @temp_level: Temperature level at which the temperature clipping will
|
||||
* happen.
|
||||
* @mask_val: cpumask of the allowed cpu's where the clipping will take place.
|
||||
*
|
||||
* This structure is required to be filled and passed to the
|
||||
* cpufreq_cooling_unregister function.
|
||||
*/
|
||||
struct freq_clip_table {
|
||||
unsigned int freq_clip_max;
|
||||
unsigned int temp_level;
|
||||
const struct cpumask *mask_val;
|
||||
};
|
||||
|
||||
struct thermal_trip_point_conf {
|
||||
int trip_val[MAX_TRIP_COUNT];
|
||||
int trip_type[MAX_TRIP_COUNT];
|
||||
int trip_count;
|
||||
unsigned char trigger_falling;
|
||||
};
|
||||
|
||||
struct thermal_cooling_conf {
|
||||
struct freq_clip_table freq_data[MAX_TRIP_COUNT];
|
||||
int freq_clip_count;
|
||||
};
|
||||
|
||||
struct thermal_sensor_conf {
|
||||
char name[SENSOR_NAME_LEN];
|
||||
int (*read_temperature)(void *data);
|
||||
int (*write_emul_temp)(void *drv_data, unsigned long temp);
|
||||
struct thermal_trip_point_conf trip_data;
|
||||
struct thermal_cooling_conf cooling_data;
|
||||
void *driver_data;
|
||||
void *pzone_data;
|
||||
struct device *dev;
|
||||
};
|
||||
|
||||
/*Functions used exynos based thermal sensor driver*/
|
||||
#ifdef CONFIG_EXYNOS_THERMAL_CORE
|
||||
void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf);
|
||||
int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf);
|
||||
void exynos_report_trigger(struct thermal_sensor_conf *sensor_conf);
|
||||
#else
|
||||
static inline void
|
||||
exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf) { return; }
|
||||
|
||||
static inline int
|
||||
exynos_register_thermal(struct thermal_sensor_conf *sensor_conf) { return 0; }
|
||||
|
||||
static inline void
|
||||
exynos_report_trigger(struct thermal_sensor_conf *sensor_conf) { return; }
|
||||
|
||||
#endif /* CONFIG_EXYNOS_THERMAL_CORE */
|
||||
#endif /* _EXYNOS_THERMAL_COMMON_H */
|
||||
768
drivers/thermal/samsung/exynos_tmu.c
Normal file
768
drivers/thermal/samsung/exynos_tmu.c
Normal file
@ -0,0 +1,768 @@
|
||||
/*
|
||||
* exynos_tmu.c - Samsung EXYNOS TMU (Thermal Management Unit)
|
||||
*
|
||||
* Copyright (C) 2011 Samsung Electronics
|
||||
* Donggeun Kim <dg77.kim@samsung.com>
|
||||
* Amit Daniel Kachhap <amit.kachhap@linaro.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/clk.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_address.h>
|
||||
#include <linux/of_irq.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
|
||||
#include "exynos_thermal_common.h"
|
||||
#include "exynos_tmu.h"
|
||||
#include "exynos_tmu_data.h"
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_data : A structure to hold the private data of the TMU
|
||||
driver
|
||||
* @id: identifier of the one instance of the TMU controller.
|
||||
* @pdata: pointer to the tmu platform/configuration data
|
||||
* @base: base address of the single instance of the TMU controller.
|
||||
* @base_common: base address of the common registers of the TMU controller.
|
||||
* @irq: irq number of the TMU controller.
|
||||
* @soc: id of the SOC type.
|
||||
* @irq_work: pointer to the irq work structure.
|
||||
* @lock: lock to implement synchronization.
|
||||
* @clk: pointer to the clock structure.
|
||||
* @temp_error1: fused value of the first point trim.
|
||||
* @temp_error2: fused value of the second point trim.
|
||||
* @regulator: pointer to the TMU regulator structure.
|
||||
* @reg_conf: pointer to structure to register with core thermal.
|
||||
*/
|
||||
struct exynos_tmu_data {
|
||||
int id;
|
||||
struct exynos_tmu_platform_data *pdata;
|
||||
void __iomem *base;
|
||||
void __iomem *base_common;
|
||||
int irq;
|
||||
enum soc_type soc;
|
||||
struct work_struct irq_work;
|
||||
struct mutex lock;
|
||||
struct clk *clk;
|
||||
u8 temp_error1, temp_error2;
|
||||
struct regulator *regulator;
|
||||
struct thermal_sensor_conf *reg_conf;
|
||||
};
|
||||
|
||||
/*
|
||||
* TMU treats temperature as a mapped temperature code.
|
||||
* The temperature is converted differently depending on the calibration type.
|
||||
*/
|
||||
static int temp_to_code(struct exynos_tmu_data *data, u8 temp)
|
||||
{
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
int temp_code;
|
||||
|
||||
if (pdata->cal_mode == HW_MODE)
|
||||
return temp;
|
||||
|
||||
if (data->soc == SOC_ARCH_EXYNOS4210)
|
||||
/* temp should range between 25 and 125 */
|
||||
if (temp < 25 || temp > 125) {
|
||||
temp_code = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
switch (pdata->cal_type) {
|
||||
case TYPE_TWO_POINT_TRIMMING:
|
||||
temp_code = (temp - pdata->first_point_trim) *
|
||||
(data->temp_error2 - data->temp_error1) /
|
||||
(pdata->second_point_trim - pdata->first_point_trim) +
|
||||
data->temp_error1;
|
||||
break;
|
||||
case TYPE_ONE_POINT_TRIMMING:
|
||||
temp_code = temp + data->temp_error1 - pdata->first_point_trim;
|
||||
break;
|
||||
default:
|
||||
temp_code = temp + pdata->default_temp_offset;
|
||||
break;
|
||||
}
|
||||
out:
|
||||
return temp_code;
|
||||
}
|
||||
|
||||
/*
|
||||
* Calculate a temperature value from a temperature code.
|
||||
* The unit of the temperature is degree Celsius.
|
||||
*/
|
||||
static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code)
|
||||
{
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
int temp;
|
||||
|
||||
if (pdata->cal_mode == HW_MODE)
|
||||
return temp_code;
|
||||
|
||||
if (data->soc == SOC_ARCH_EXYNOS4210)
|
||||
/* temp_code should range between 75 and 175 */
|
||||
if (temp_code < 75 || temp_code > 175) {
|
||||
temp = -ENODATA;
|
||||
goto out;
|
||||
}
|
||||
|
||||
switch (pdata->cal_type) {
|
||||
case TYPE_TWO_POINT_TRIMMING:
|
||||
temp = (temp_code - data->temp_error1) *
|
||||
(pdata->second_point_trim - pdata->first_point_trim) /
|
||||
(data->temp_error2 - data->temp_error1) +
|
||||
pdata->first_point_trim;
|
||||
break;
|
||||
case TYPE_ONE_POINT_TRIMMING:
|
||||
temp = temp_code - data->temp_error1 + pdata->first_point_trim;
|
||||
break;
|
||||
default:
|
||||
temp = temp_code - pdata->default_temp_offset;
|
||||
break;
|
||||
}
|
||||
out:
|
||||
return temp;
|
||||
}
|
||||
|
||||
static int exynos_tmu_initialize(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
unsigned int status, trim_info = 0, con;
|
||||
unsigned int rising_threshold = 0, falling_threshold = 0;
|
||||
int ret = 0, threshold_code, i, trigger_levs = 0;
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
|
||||
if (TMU_SUPPORTS(pdata, READY_STATUS)) {
|
||||
status = readb(data->base + reg->tmu_status);
|
||||
if (!status) {
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
|
||||
if (TMU_SUPPORTS(pdata, TRIM_RELOAD))
|
||||
__raw_writel(1, data->base + reg->triminfo_ctrl);
|
||||
|
||||
if (pdata->cal_mode == HW_MODE)
|
||||
goto skip_calib_data;
|
||||
|
||||
/* Save trimming info in order to perform calibration */
|
||||
if (data->soc == SOC_ARCH_EXYNOS5440) {
|
||||
/*
|
||||
* For exynos5440 soc triminfo value is swapped between TMU0 and
|
||||
* TMU2, so the below logic is needed.
|
||||
*/
|
||||
switch (data->id) {
|
||||
case 0:
|
||||
trim_info = readl(data->base +
|
||||
EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data);
|
||||
break;
|
||||
case 1:
|
||||
trim_info = readl(data->base + reg->triminfo_data);
|
||||
break;
|
||||
case 2:
|
||||
trim_info = readl(data->base -
|
||||
EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data);
|
||||
}
|
||||
} else {
|
||||
trim_info = readl(data->base + reg->triminfo_data);
|
||||
}
|
||||
data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK;
|
||||
data->temp_error2 = ((trim_info >> reg->triminfo_85_shift) &
|
||||
EXYNOS_TMU_TEMP_MASK);
|
||||
|
||||
if (!data->temp_error1 ||
|
||||
(pdata->min_efuse_value > data->temp_error1) ||
|
||||
(data->temp_error1 > pdata->max_efuse_value))
|
||||
data->temp_error1 = pdata->efuse_value & EXYNOS_TMU_TEMP_MASK;
|
||||
|
||||
if (!data->temp_error2)
|
||||
data->temp_error2 =
|
||||
(pdata->efuse_value >> reg->triminfo_85_shift) &
|
||||
EXYNOS_TMU_TEMP_MASK;
|
||||
|
||||
skip_calib_data:
|
||||
if (pdata->max_trigger_level > MAX_THRESHOLD_LEVS) {
|
||||
dev_err(&pdev->dev, "Invalid max trigger level\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
for (i = 0; i < pdata->max_trigger_level; i++) {
|
||||
if (!pdata->trigger_levels[i])
|
||||
continue;
|
||||
|
||||
if ((pdata->trigger_type[i] == HW_TRIP) &&
|
||||
(!pdata->trigger_levels[pdata->max_trigger_level - 1])) {
|
||||
dev_err(&pdev->dev, "Invalid hw trigger level\n");
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Count trigger levels except the HW trip*/
|
||||
if (!(pdata->trigger_type[i] == HW_TRIP))
|
||||
trigger_levs++;
|
||||
}
|
||||
|
||||
if (data->soc == SOC_ARCH_EXYNOS4210) {
|
||||
/* Write temperature code for threshold */
|
||||
threshold_code = temp_to_code(data, pdata->threshold);
|
||||
if (threshold_code < 0) {
|
||||
ret = threshold_code;
|
||||
goto out;
|
||||
}
|
||||
writeb(threshold_code,
|
||||
data->base + reg->threshold_temp);
|
||||
for (i = 0; i < trigger_levs; i++)
|
||||
writeb(pdata->trigger_levels[i], data->base +
|
||||
reg->threshold_th0 + i * sizeof(reg->threshold_th0));
|
||||
|
||||
writel(reg->inten_rise_mask, data->base + reg->tmu_intclear);
|
||||
} else {
|
||||
/* Write temperature code for rising and falling threshold */
|
||||
for (i = 0;
|
||||
i < trigger_levs && i < EXYNOS_MAX_TRIGGER_PER_REG; i++) {
|
||||
threshold_code = temp_to_code(data,
|
||||
pdata->trigger_levels[i]);
|
||||
if (threshold_code < 0) {
|
||||
ret = threshold_code;
|
||||
goto out;
|
||||
}
|
||||
rising_threshold |= threshold_code << 8 * i;
|
||||
if (pdata->threshold_falling) {
|
||||
threshold_code = temp_to_code(data,
|
||||
pdata->trigger_levels[i] -
|
||||
pdata->threshold_falling);
|
||||
if (threshold_code > 0)
|
||||
falling_threshold |=
|
||||
threshold_code << 8 * i;
|
||||
}
|
||||
}
|
||||
|
||||
writel(rising_threshold,
|
||||
data->base + reg->threshold_th0);
|
||||
writel(falling_threshold,
|
||||
data->base + reg->threshold_th1);
|
||||
|
||||
writel((reg->inten_rise_mask << reg->inten_rise_shift) |
|
||||
(reg->inten_fall_mask << reg->inten_fall_shift),
|
||||
data->base + reg->tmu_intclear);
|
||||
|
||||
/* if last threshold limit is also present */
|
||||
i = pdata->max_trigger_level - 1;
|
||||
if (pdata->trigger_levels[i] &&
|
||||
(pdata->trigger_type[i] == HW_TRIP)) {
|
||||
threshold_code = temp_to_code(data,
|
||||
pdata->trigger_levels[i]);
|
||||
if (threshold_code < 0) {
|
||||
ret = threshold_code;
|
||||
goto out;
|
||||
}
|
||||
if (i == EXYNOS_MAX_TRIGGER_PER_REG - 1) {
|
||||
/* 1-4 level to be assigned in th0 reg */
|
||||
rising_threshold |= threshold_code << 8 * i;
|
||||
writel(rising_threshold,
|
||||
data->base + reg->threshold_th0);
|
||||
} else if (i == EXYNOS_MAX_TRIGGER_PER_REG) {
|
||||
/* 5th level to be assigned in th2 reg */
|
||||
rising_threshold =
|
||||
threshold_code << reg->threshold_th3_l0_shift;
|
||||
writel(rising_threshold,
|
||||
data->base + reg->threshold_th2);
|
||||
}
|
||||
con = readl(data->base + reg->tmu_ctrl);
|
||||
con |= (1 << reg->therm_trip_en_shift);
|
||||
writel(con, data->base + reg->tmu_ctrl);
|
||||
}
|
||||
}
|
||||
/*Clear the PMIN in the common TMU register*/
|
||||
if (reg->tmu_pmin && !data->id)
|
||||
writel(0, data->base_common + reg->tmu_pmin);
|
||||
out:
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void exynos_tmu_control(struct platform_device *pdev, bool on)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
unsigned int con, interrupt_en, cal_val;
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
|
||||
con = readl(data->base + reg->tmu_ctrl);
|
||||
|
||||
if (pdata->reference_voltage) {
|
||||
con &= ~(reg->buf_vref_sel_mask << reg->buf_vref_sel_shift);
|
||||
con |= pdata->reference_voltage << reg->buf_vref_sel_shift;
|
||||
}
|
||||
|
||||
if (pdata->gain) {
|
||||
con &= ~(reg->buf_slope_sel_mask << reg->buf_slope_sel_shift);
|
||||
con |= (pdata->gain << reg->buf_slope_sel_shift);
|
||||
}
|
||||
|
||||
if (pdata->noise_cancel_mode) {
|
||||
con &= ~(reg->therm_trip_mode_mask <<
|
||||
reg->therm_trip_mode_shift);
|
||||
con |= (pdata->noise_cancel_mode << reg->therm_trip_mode_shift);
|
||||
}
|
||||
|
||||
if (pdata->cal_mode == HW_MODE) {
|
||||
con &= ~(reg->calib_mode_mask << reg->calib_mode_shift);
|
||||
cal_val = 0;
|
||||
switch (pdata->cal_type) {
|
||||
case TYPE_TWO_POINT_TRIMMING:
|
||||
cal_val = 3;
|
||||
break;
|
||||
case TYPE_ONE_POINT_TRIMMING_85:
|
||||
cal_val = 2;
|
||||
break;
|
||||
case TYPE_ONE_POINT_TRIMMING_25:
|
||||
cal_val = 1;
|
||||
break;
|
||||
case TYPE_NONE:
|
||||
break;
|
||||
default:
|
||||
dev_err(&pdev->dev, "Invalid calibration type, using none\n");
|
||||
}
|
||||
con |= cal_val << reg->calib_mode_shift;
|
||||
}
|
||||
|
||||
if (on) {
|
||||
con |= (1 << reg->core_en_shift);
|
||||
interrupt_en =
|
||||
pdata->trigger_enable[3] << reg->inten_rise3_shift |
|
||||
pdata->trigger_enable[2] << reg->inten_rise2_shift |
|
||||
pdata->trigger_enable[1] << reg->inten_rise1_shift |
|
||||
pdata->trigger_enable[0] << reg->inten_rise0_shift;
|
||||
if (TMU_SUPPORTS(pdata, FALLING_TRIP))
|
||||
interrupt_en |=
|
||||
interrupt_en << reg->inten_fall0_shift;
|
||||
} else {
|
||||
con &= ~(1 << reg->core_en_shift);
|
||||
interrupt_en = 0; /* Disable all interrupts */
|
||||
}
|
||||
writel(interrupt_en, data->base + reg->tmu_inten);
|
||||
writel(con, data->base + reg->tmu_ctrl);
|
||||
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
}
|
||||
|
||||
static int exynos_tmu_read(struct exynos_tmu_data *data)
|
||||
{
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
u8 temp_code;
|
||||
int temp;
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
|
||||
temp_code = readb(data->base + reg->tmu_cur_temp);
|
||||
temp = code_to_temp(data, temp_code);
|
||||
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
|
||||
return temp;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_THERMAL_EMULATION
|
||||
static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
|
||||
{
|
||||
struct exynos_tmu_data *data = drv_data;
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
unsigned int val;
|
||||
int ret = -EINVAL;
|
||||
|
||||
if (!TMU_SUPPORTS(pdata, EMULATION))
|
||||
goto out;
|
||||
|
||||
if (temp && temp < MCELSIUS)
|
||||
goto out;
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
|
||||
val = readl(data->base + reg->emul_con);
|
||||
|
||||
if (temp) {
|
||||
temp /= MCELSIUS;
|
||||
|
||||
if (TMU_SUPPORTS(pdata, EMUL_TIME)) {
|
||||
val &= ~(EXYNOS_EMUL_TIME_MASK << reg->emul_time_shift);
|
||||
val |= (EXYNOS_EMUL_TIME << reg->emul_time_shift);
|
||||
}
|
||||
val &= ~(EXYNOS_EMUL_DATA_MASK << reg->emul_temp_shift);
|
||||
val |= (temp_to_code(data, temp) << reg->emul_temp_shift) |
|
||||
EXYNOS_EMUL_ENABLE;
|
||||
} else {
|
||||
val &= ~EXYNOS_EMUL_ENABLE;
|
||||
}
|
||||
|
||||
writel(val, data->base + reg->emul_con);
|
||||
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
return 0;
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
#else
|
||||
static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
|
||||
{ return -EINVAL; }
|
||||
#endif/*CONFIG_THERMAL_EMULATION*/
|
||||
|
||||
static void exynos_tmu_work(struct work_struct *work)
|
||||
{
|
||||
struct exynos_tmu_data *data = container_of(work,
|
||||
struct exynos_tmu_data, irq_work);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
unsigned int val_irq, val_type;
|
||||
|
||||
/* Find which sensor generated this interrupt */
|
||||
if (reg->tmu_irqstatus) {
|
||||
val_type = readl(data->base_common + reg->tmu_irqstatus);
|
||||
if (!((val_type >> data->id) & 0x1))
|
||||
goto out;
|
||||
}
|
||||
|
||||
exynos_report_trigger(data->reg_conf);
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
|
||||
/* TODO: take action based on particular interrupt */
|
||||
val_irq = readl(data->base + reg->tmu_intstat);
|
||||
/* clear the interrupts */
|
||||
writel(val_irq, data->base + reg->tmu_intclear);
|
||||
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
out:
|
||||
enable_irq(data->irq);
|
||||
}
|
||||
|
||||
static irqreturn_t exynos_tmu_irq(int irq, void *id)
|
||||
{
|
||||
struct exynos_tmu_data *data = id;
|
||||
|
||||
disable_irq_nosync(irq);
|
||||
schedule_work(&data->irq_work);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_OF
|
||||
static const struct of_device_id exynos_tmu_match[] = {
|
||||
{
|
||||
.compatible = "samsung,exynos4210-tmu",
|
||||
.data = (void *)EXYNOS4210_TMU_DRV_DATA,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos4412-tmu",
|
||||
.data = (void *)EXYNOS5250_TMU_DRV_DATA,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos5250-tmu",
|
||||
.data = (void *)EXYNOS5250_TMU_DRV_DATA,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos5440-tmu",
|
||||
.data = (void *)EXYNOS5440_TMU_DRV_DATA,
|
||||
},
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, exynos_tmu_match);
|
||||
#endif
|
||||
|
||||
static inline struct exynos_tmu_platform_data *exynos_get_driver_data(
|
||||
struct platform_device *pdev, int id)
|
||||
{
|
||||
#ifdef CONFIG_OF
|
||||
struct exynos_tmu_init_data *data_table;
|
||||
struct exynos_tmu_platform_data *tmu_data;
|
||||
if (pdev->dev.of_node) {
|
||||
const struct of_device_id *match;
|
||||
match = of_match_node(exynos_tmu_match, pdev->dev.of_node);
|
||||
if (!match)
|
||||
return NULL;
|
||||
data_table = (struct exynos_tmu_init_data *) match->data;
|
||||
if (!data_table || id >= data_table->tmu_count)
|
||||
return NULL;
|
||||
tmu_data = data_table->tmu_data;
|
||||
return (struct exynos_tmu_platform_data *) (tmu_data + id);
|
||||
}
|
||||
#endif
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int exynos_map_dt_data(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata;
|
||||
struct resource res;
|
||||
int ret;
|
||||
|
||||
if (!data)
|
||||
return -ENODEV;
|
||||
|
||||
/*
|
||||
* Try enabling the regulator if found
|
||||
* TODO: Add regulator as an SOC feature, so that regulator enable
|
||||
* is a compulsory call.
|
||||
*/
|
||||
data->regulator = devm_regulator_get(&pdev->dev, "vtmu");
|
||||
if (!IS_ERR(data->regulator)) {
|
||||
ret = regulator_enable(data->regulator);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "failed to enable vtmu\n");
|
||||
return ret;
|
||||
}
|
||||
} else {
|
||||
dev_info(&pdev->dev, "Regulator node (vtmu) not found\n");
|
||||
}
|
||||
|
||||
data->id = of_alias_get_id(pdev->dev.of_node, "tmuctrl");
|
||||
if (data->id < 0)
|
||||
data->id = 0;
|
||||
|
||||
data->irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
|
||||
if (data->irq <= 0) {
|
||||
dev_err(&pdev->dev, "failed to get IRQ\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if (of_address_to_resource(pdev->dev.of_node, 0, &res)) {
|
||||
dev_err(&pdev->dev, "failed to get Resource 0\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
data->base = devm_ioremap(&pdev->dev, res.start, resource_size(&res));
|
||||
if (!data->base) {
|
||||
dev_err(&pdev->dev, "Failed to ioremap memory\n");
|
||||
return -EADDRNOTAVAIL;
|
||||
}
|
||||
|
||||
pdata = exynos_get_driver_data(pdev, data->id);
|
||||
if (!pdata) {
|
||||
dev_err(&pdev->dev, "No platform init data supplied.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
data->pdata = pdata;
|
||||
/*
|
||||
* Check if the TMU shares some registers and then try to map the
|
||||
* memory of common registers.
|
||||
*/
|
||||
if (!TMU_SUPPORTS(pdata, SHARED_MEMORY))
|
||||
return 0;
|
||||
|
||||
if (of_address_to_resource(pdev->dev.of_node, 1, &res)) {
|
||||
dev_err(&pdev->dev, "failed to get Resource 1\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
data->base_common = devm_ioremap(&pdev->dev, res.start,
|
||||
resource_size(&res));
|
||||
if (!data->base) {
|
||||
dev_err(&pdev->dev, "Failed to ioremap memory\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_tmu_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data;
|
||||
struct exynos_tmu_platform_data *pdata;
|
||||
struct thermal_sensor_conf *sensor_conf;
|
||||
int ret, i;
|
||||
|
||||
data = devm_kzalloc(&pdev->dev, sizeof(struct exynos_tmu_data),
|
||||
GFP_KERNEL);
|
||||
if (!data) {
|
||||
dev_err(&pdev->dev, "Failed to allocate driver structure\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, data);
|
||||
mutex_init(&data->lock);
|
||||
|
||||
ret = exynos_map_dt_data(pdev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
pdata = data->pdata;
|
||||
|
||||
INIT_WORK(&data->irq_work, exynos_tmu_work);
|
||||
|
||||
data->clk = devm_clk_get(&pdev->dev, "tmu_apbif");
|
||||
if (IS_ERR(data->clk)) {
|
||||
dev_err(&pdev->dev, "Failed to get clock\n");
|
||||
return PTR_ERR(data->clk);
|
||||
}
|
||||
|
||||
ret = clk_prepare(data->clk);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (pdata->type == SOC_ARCH_EXYNOS ||
|
||||
pdata->type == SOC_ARCH_EXYNOS4210 ||
|
||||
pdata->type == SOC_ARCH_EXYNOS5440)
|
||||
data->soc = pdata->type;
|
||||
else {
|
||||
ret = -EINVAL;
|
||||
dev_err(&pdev->dev, "Platform not supported\n");
|
||||
goto err_clk;
|
||||
}
|
||||
|
||||
ret = exynos_tmu_initialize(pdev);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "Failed to initialize TMU\n");
|
||||
goto err_clk;
|
||||
}
|
||||
|
||||
exynos_tmu_control(pdev, true);
|
||||
|
||||
/* Allocate a structure to register with the exynos core thermal */
|
||||
sensor_conf = devm_kzalloc(&pdev->dev,
|
||||
sizeof(struct thermal_sensor_conf), GFP_KERNEL);
|
||||
if (!sensor_conf) {
|
||||
dev_err(&pdev->dev, "Failed to allocate registration struct\n");
|
||||
ret = -ENOMEM;
|
||||
goto err_clk;
|
||||
}
|
||||
sprintf(sensor_conf->name, "therm_zone%d", data->id);
|
||||
sensor_conf->read_temperature = (int (*)(void *))exynos_tmu_read;
|
||||
sensor_conf->write_emul_temp =
|
||||
(int (*)(void *, unsigned long))exynos_tmu_set_emulation;
|
||||
sensor_conf->driver_data = data;
|
||||
sensor_conf->trip_data.trip_count = pdata->trigger_enable[0] +
|
||||
pdata->trigger_enable[1] + pdata->trigger_enable[2]+
|
||||
pdata->trigger_enable[3];
|
||||
|
||||
for (i = 0; i < sensor_conf->trip_data.trip_count; i++) {
|
||||
sensor_conf->trip_data.trip_val[i] =
|
||||
pdata->threshold + pdata->trigger_levels[i];
|
||||
sensor_conf->trip_data.trip_type[i] =
|
||||
pdata->trigger_type[i];
|
||||
}
|
||||
|
||||
sensor_conf->trip_data.trigger_falling = pdata->threshold_falling;
|
||||
|
||||
sensor_conf->cooling_data.freq_clip_count = pdata->freq_tab_count;
|
||||
for (i = 0; i < pdata->freq_tab_count; i++) {
|
||||
sensor_conf->cooling_data.freq_data[i].freq_clip_max =
|
||||
pdata->freq_tab[i].freq_clip_max;
|
||||
sensor_conf->cooling_data.freq_data[i].temp_level =
|
||||
pdata->freq_tab[i].temp_level;
|
||||
}
|
||||
sensor_conf->dev = &pdev->dev;
|
||||
/* Register the sensor with thermal management interface */
|
||||
ret = exynos_register_thermal(sensor_conf);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "Failed to register thermal interface\n");
|
||||
goto err_clk;
|
||||
}
|
||||
data->reg_conf = sensor_conf;
|
||||
|
||||
ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq,
|
||||
IRQF_TRIGGER_RISING | IRQF_SHARED, dev_name(&pdev->dev), data);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "Failed to request irq: %d\n", data->irq);
|
||||
goto err_clk;
|
||||
}
|
||||
|
||||
return 0;
|
||||
err_clk:
|
||||
clk_unprepare(data->clk);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int exynos_tmu_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
|
||||
exynos_tmu_control(pdev, false);
|
||||
|
||||
exynos_unregister_thermal(data->reg_conf);
|
||||
|
||||
clk_unprepare(data->clk);
|
||||
|
||||
if (!IS_ERR(data->regulator))
|
||||
regulator_disable(data->regulator);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
static int exynos_tmu_suspend(struct device *dev)
|
||||
{
|
||||
exynos_tmu_control(to_platform_device(dev), false);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int exynos_tmu_resume(struct device *dev)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
|
||||
exynos_tmu_initialize(pdev);
|
||||
exynos_tmu_control(pdev, true);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static SIMPLE_DEV_PM_OPS(exynos_tmu_pm,
|
||||
exynos_tmu_suspend, exynos_tmu_resume);
|
||||
#define EXYNOS_TMU_PM (&exynos_tmu_pm)
|
||||
#else
|
||||
#define EXYNOS_TMU_PM NULL
|
||||
#endif
|
||||
|
||||
static struct platform_driver exynos_tmu_driver = {
|
||||
.driver = {
|
||||
.name = "exynos-tmu",
|
||||
.owner = THIS_MODULE,
|
||||
.pm = EXYNOS_TMU_PM,
|
||||
.of_match_table = of_match_ptr(exynos_tmu_match),
|
||||
},
|
||||
.probe = exynos_tmu_probe,
|
||||
.remove = exynos_tmu_remove,
|
||||
};
|
||||
|
||||
module_platform_driver(exynos_tmu_driver);
|
||||
|
||||
MODULE_DESCRIPTION("EXYNOS TMU Driver");
|
||||
MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS("platform:exynos-tmu");
|
||||
311
drivers/thermal/samsung/exynos_tmu.h
Normal file
311
drivers/thermal/samsung/exynos_tmu.h
Normal file
@ -0,0 +1,311 @@
|
||||
/*
|
||||
* exynos_tmu.h - Samsung EXYNOS TMU (Thermal Management Unit)
|
||||
*
|
||||
* Copyright (C) 2011 Samsung Electronics
|
||||
* Donggeun Kim <dg77.kim@samsung.com>
|
||||
* Amit Daniel Kachhap <amit.daniel@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef _EXYNOS_TMU_H
|
||||
#define _EXYNOS_TMU_H
|
||||
#include <linux/cpu_cooling.h>
|
||||
|
||||
#include "exynos_thermal_common.h"
|
||||
|
||||
enum calibration_type {
|
||||
TYPE_ONE_POINT_TRIMMING,
|
||||
TYPE_ONE_POINT_TRIMMING_25,
|
||||
TYPE_ONE_POINT_TRIMMING_85,
|
||||
TYPE_TWO_POINT_TRIMMING,
|
||||
TYPE_NONE,
|
||||
};
|
||||
|
||||
enum calibration_mode {
|
||||
SW_MODE,
|
||||
HW_MODE,
|
||||
};
|
||||
|
||||
enum soc_type {
|
||||
SOC_ARCH_EXYNOS4210 = 1,
|
||||
SOC_ARCH_EXYNOS,
|
||||
SOC_ARCH_EXYNOS5440,
|
||||
};
|
||||
|
||||
/**
|
||||
* EXYNOS TMU supported features.
|
||||
* TMU_SUPPORT_EMULATION - This features is used to set user defined
|
||||
* temperature to the TMU controller.
|
||||
* TMU_SUPPORT_MULTI_INST - This features denotes that the soc
|
||||
* has many instances of TMU.
|
||||
* TMU_SUPPORT_TRIM_RELOAD - This features shows that trimming can
|
||||
* be reloaded.
|
||||
* TMU_SUPPORT_FALLING_TRIP - This features shows that interrupt can
|
||||
* be registered for falling trips also.
|
||||
* TMU_SUPPORT_READY_STATUS - This feature tells that the TMU current
|
||||
* state(active/idle) can be checked.
|
||||
* TMU_SUPPORT_EMUL_TIME - This features allows to set next temp emulation
|
||||
* sample time.
|
||||
* TMU_SUPPORT_SHARED_MEMORY - This feature tells that the different TMU
|
||||
* sensors shares some common registers.
|
||||
* TMU_SUPPORT - macro to compare the above features with the supplied.
|
||||
*/
|
||||
#define TMU_SUPPORT_EMULATION BIT(0)
|
||||
#define TMU_SUPPORT_MULTI_INST BIT(1)
|
||||
#define TMU_SUPPORT_TRIM_RELOAD BIT(2)
|
||||
#define TMU_SUPPORT_FALLING_TRIP BIT(3)
|
||||
#define TMU_SUPPORT_READY_STATUS BIT(4)
|
||||
#define TMU_SUPPORT_EMUL_TIME BIT(5)
|
||||
#define TMU_SUPPORT_SHARED_MEMORY BIT(6)
|
||||
|
||||
#define TMU_SUPPORTS(a, b) (a->features & TMU_SUPPORT_ ## b)
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_register - register descriptors to access registers and
|
||||
* bitfields. The register validity, offsets and bitfield values may vary
|
||||
* slightly across different exynos SOC's.
|
||||
* @triminfo_data: register containing 2 pont trimming data
|
||||
* @triminfo_25_shift: shift bit of the 25 C trim value in triminfo_data reg.
|
||||
* @triminfo_85_shift: shift bit of the 85 C trim value in triminfo_data reg.
|
||||
* @triminfo_ctrl: trim info controller register.
|
||||
* @triminfo_reload_shift: shift of triminfo reload enable bit in triminfo_ctrl
|
||||
reg.
|
||||
* @tmu_ctrl: TMU main controller register.
|
||||
* @buf_vref_sel_shift: shift bits of reference voltage in tmu_ctrl register.
|
||||
* @buf_vref_sel_mask: mask bits of reference voltage in tmu_ctrl register.
|
||||
* @therm_trip_mode_shift: shift bits of tripping mode in tmu_ctrl register.
|
||||
* @therm_trip_mode_mask: mask bits of tripping mode in tmu_ctrl register.
|
||||
* @therm_trip_en_shift: shift bits of tripping enable in tmu_ctrl register.
|
||||
* @buf_slope_sel_shift: shift bits of amplifier gain value in tmu_ctrl
|
||||
register.
|
||||
* @buf_slope_sel_mask: mask bits of amplifier gain value in tmu_ctrl register.
|
||||
* @calib_mode_shift: shift bits of calibration mode value in tmu_ctrl
|
||||
register.
|
||||
* @calib_mode_mask: mask bits of calibration mode value in tmu_ctrl
|
||||
register.
|
||||
* @therm_trip_tq_en_shift: shift bits of thermal trip enable by TQ pin in
|
||||
tmu_ctrl register.
|
||||
* @core_en_shift: shift bits of TMU core enable bit in tmu_ctrl register.
|
||||
* @tmu_status: register drescribing the TMU status.
|
||||
* @tmu_cur_temp: register containing the current temperature of the TMU.
|
||||
* @tmu_cur_temp_shift: shift bits of current temp value in tmu_cur_temp
|
||||
register.
|
||||
* @threshold_temp: register containing the base threshold level.
|
||||
* @threshold_th0: Register containing first set of rising levels.
|
||||
* @threshold_th0_l0_shift: shift bits of level0 threshold temperature.
|
||||
* @threshold_th0_l1_shift: shift bits of level1 threshold temperature.
|
||||
* @threshold_th0_l2_shift: shift bits of level2 threshold temperature.
|
||||
* @threshold_th0_l3_shift: shift bits of level3 threshold temperature.
|
||||
* @threshold_th1: Register containing second set of rising levels.
|
||||
* @threshold_th1_l0_shift: shift bits of level0 threshold temperature.
|
||||
* @threshold_th1_l1_shift: shift bits of level1 threshold temperature.
|
||||
* @threshold_th1_l2_shift: shift bits of level2 threshold temperature.
|
||||
* @threshold_th1_l3_shift: shift bits of level3 threshold temperature.
|
||||
* @threshold_th2: Register containing third set of rising levels.
|
||||
* @threshold_th2_l0_shift: shift bits of level0 threshold temperature.
|
||||
* @threshold_th3: Register containing fourth set of rising levels.
|
||||
* @threshold_th3_l0_shift: shift bits of level0 threshold temperature.
|
||||
* @tmu_inten: register containing the different threshold interrupt
|
||||
enable bits.
|
||||
* @inten_rise_shift: shift bits of all rising interrupt bits.
|
||||
* @inten_rise_mask: mask bits of all rising interrupt bits.
|
||||
* @inten_fall_shift: shift bits of all rising interrupt bits.
|
||||
* @inten_fall_mask: mask bits of all rising interrupt bits.
|
||||
* @inten_rise0_shift: shift bits of rising 0 interrupt bits.
|
||||
* @inten_rise1_shift: shift bits of rising 1 interrupt bits.
|
||||
* @inten_rise2_shift: shift bits of rising 2 interrupt bits.
|
||||
* @inten_rise3_shift: shift bits of rising 3 interrupt bits.
|
||||
* @inten_fall0_shift: shift bits of falling 0 interrupt bits.
|
||||
* @inten_fall1_shift: shift bits of falling 1 interrupt bits.
|
||||
* @inten_fall2_shift: shift bits of falling 2 interrupt bits.
|
||||
* @inten_fall3_shift: shift bits of falling 3 interrupt bits.
|
||||
* @tmu_intstat: Register containing the interrupt status values.
|
||||
* @tmu_intclear: Register for clearing the raised interrupt status.
|
||||
* @emul_con: TMU emulation controller register.
|
||||
* @emul_temp_shift: shift bits of emulation temperature.
|
||||
* @emul_time_shift: shift bits of emulation time.
|
||||
* @emul_time_mask: mask bits of emulation time.
|
||||
* @tmu_irqstatus: register to find which TMU generated interrupts.
|
||||
* @tmu_pmin: register to get/set the Pmin value.
|
||||
*/
|
||||
struct exynos_tmu_registers {
|
||||
u32 triminfo_data;
|
||||
u32 triminfo_25_shift;
|
||||
u32 triminfo_85_shift;
|
||||
|
||||
u32 triminfo_ctrl;
|
||||
u32 triminfo_reload_shift;
|
||||
|
||||
u32 tmu_ctrl;
|
||||
u32 buf_vref_sel_shift;
|
||||
u32 buf_vref_sel_mask;
|
||||
u32 therm_trip_mode_shift;
|
||||
u32 therm_trip_mode_mask;
|
||||
u32 therm_trip_en_shift;
|
||||
u32 buf_slope_sel_shift;
|
||||
u32 buf_slope_sel_mask;
|
||||
u32 calib_mode_shift;
|
||||
u32 calib_mode_mask;
|
||||
u32 therm_trip_tq_en_shift;
|
||||
u32 core_en_shift;
|
||||
|
||||
u32 tmu_status;
|
||||
|
||||
u32 tmu_cur_temp;
|
||||
u32 tmu_cur_temp_shift;
|
||||
|
||||
u32 threshold_temp;
|
||||
|
||||
u32 threshold_th0;
|
||||
u32 threshold_th0_l0_shift;
|
||||
u32 threshold_th0_l1_shift;
|
||||
u32 threshold_th0_l2_shift;
|
||||
u32 threshold_th0_l3_shift;
|
||||
|
||||
u32 threshold_th1;
|
||||
u32 threshold_th1_l0_shift;
|
||||
u32 threshold_th1_l1_shift;
|
||||
u32 threshold_th1_l2_shift;
|
||||
u32 threshold_th1_l3_shift;
|
||||
|
||||
u32 threshold_th2;
|
||||
u32 threshold_th2_l0_shift;
|
||||
|
||||
u32 threshold_th3;
|
||||
u32 threshold_th3_l0_shift;
|
||||
|
||||
u32 tmu_inten;
|
||||
u32 inten_rise_shift;
|
||||
u32 inten_rise_mask;
|
||||
u32 inten_fall_shift;
|
||||
u32 inten_fall_mask;
|
||||
u32 inten_rise0_shift;
|
||||
u32 inten_rise1_shift;
|
||||
u32 inten_rise2_shift;
|
||||
u32 inten_rise3_shift;
|
||||
u32 inten_fall0_shift;
|
||||
u32 inten_fall1_shift;
|
||||
u32 inten_fall2_shift;
|
||||
u32 inten_fall3_shift;
|
||||
|
||||
u32 tmu_intstat;
|
||||
|
||||
u32 tmu_intclear;
|
||||
|
||||
u32 emul_con;
|
||||
u32 emul_temp_shift;
|
||||
u32 emul_time_shift;
|
||||
u32 emul_time_mask;
|
||||
|
||||
u32 tmu_irqstatus;
|
||||
u32 tmu_pmin;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_platform_data
|
||||
* @threshold: basic temperature for generating interrupt
|
||||
* 25 <= threshold <= 125 [unit: degree Celsius]
|
||||
* @threshold_falling: differntial value for setting threshold
|
||||
* of temperature falling interrupt.
|
||||
* @trigger_levels: array for each interrupt levels
|
||||
* [unit: degree Celsius]
|
||||
* 0: temperature for trigger_level0 interrupt
|
||||
* condition for trigger_level0 interrupt:
|
||||
* current temperature > threshold + trigger_levels[0]
|
||||
* 1: temperature for trigger_level1 interrupt
|
||||
* condition for trigger_level1 interrupt:
|
||||
* current temperature > threshold + trigger_levels[1]
|
||||
* 2: temperature for trigger_level2 interrupt
|
||||
* condition for trigger_level2 interrupt:
|
||||
* current temperature > threshold + trigger_levels[2]
|
||||
* 3: temperature for trigger_level3 interrupt
|
||||
* condition for trigger_level3 interrupt:
|
||||
* current temperature > threshold + trigger_levels[3]
|
||||
* @trigger_type: defines the type of trigger. Possible values are,
|
||||
* THROTTLE_ACTIVE trigger type
|
||||
* THROTTLE_PASSIVE trigger type
|
||||
* SW_TRIP trigger type
|
||||
* HW_TRIP
|
||||
* @trigger_enable[]: array to denote which trigger levels are enabled.
|
||||
* 1 = enable trigger_level[] interrupt,
|
||||
* 0 = disable trigger_level[] interrupt
|
||||
* @max_trigger_level: max trigger level supported by the TMU
|
||||
* @gain: gain of amplifier in the positive-TC generator block
|
||||
* 0 <= gain <= 15
|
||||
* @reference_voltage: reference voltage of amplifier
|
||||
* in the positive-TC generator block
|
||||
* 0 <= reference_voltage <= 31
|
||||
* @noise_cancel_mode: noise cancellation mode
|
||||
* 000, 100, 101, 110 and 111 can be different modes
|
||||
* @type: determines the type of SOC
|
||||
* @efuse_value: platform defined fuse value
|
||||
* @min_efuse_value: minimum valid trimming data
|
||||
* @max_efuse_value: maximum valid trimming data
|
||||
* @first_point_trim: temp value of the first point trimming
|
||||
* @second_point_trim: temp value of the second point trimming
|
||||
* @default_temp_offset: default temperature offset in case of no trimming
|
||||
* @cal_type: calibration type for temperature
|
||||
* @cal_mode: calibration mode for temperature
|
||||
* @freq_clip_table: Table representing frequency reduction percentage.
|
||||
* @freq_tab_count: Count of the above table as frequency reduction may
|
||||
* applicable to only some of the trigger levels.
|
||||
* @registers: Pointer to structure containing all the TMU controller registers
|
||||
* and bitfields shifts and masks.
|
||||
* @features: a bitfield value indicating the features supported in SOC like
|
||||
* emulation, multi instance etc
|
||||
*
|
||||
* This structure is required for configuration of exynos_tmu driver.
|
||||
*/
|
||||
struct exynos_tmu_platform_data {
|
||||
u8 threshold;
|
||||
u8 threshold_falling;
|
||||
u8 trigger_levels[MAX_TRIP_COUNT];
|
||||
enum trigger_type trigger_type[MAX_TRIP_COUNT];
|
||||
bool trigger_enable[MAX_TRIP_COUNT];
|
||||
u8 max_trigger_level;
|
||||
u8 gain;
|
||||
u8 reference_voltage;
|
||||
u8 noise_cancel_mode;
|
||||
|
||||
u32 efuse_value;
|
||||
u32 min_efuse_value;
|
||||
u32 max_efuse_value;
|
||||
u8 first_point_trim;
|
||||
u8 second_point_trim;
|
||||
u8 default_temp_offset;
|
||||
|
||||
enum calibration_type cal_type;
|
||||
enum calibration_mode cal_mode;
|
||||
enum soc_type type;
|
||||
struct freq_clip_table freq_tab[4];
|
||||
unsigned int freq_tab_count;
|
||||
const struct exynos_tmu_registers *registers;
|
||||
unsigned int features;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_init_data
|
||||
* @tmu_count: number of TMU instances.
|
||||
* @tmu_data: platform data of all TMU instances.
|
||||
* This structure is required to store data for multi-instance exynos tmu
|
||||
* driver.
|
||||
*/
|
||||
struct exynos_tmu_init_data {
|
||||
int tmu_count;
|
||||
struct exynos_tmu_platform_data tmu_data[];
|
||||
};
|
||||
|
||||
#endif /* _EXYNOS_TMU_H */
|
||||
250
drivers/thermal/samsung/exynos_tmu_data.c
Normal file
250
drivers/thermal/samsung/exynos_tmu_data.c
Normal file
@ -0,0 +1,250 @@
|
||||
/*
|
||||
* exynos_tmu_data.c - Samsung EXYNOS tmu data file
|
||||
*
|
||||
* Copyright (C) 2013 Samsung Electronics
|
||||
* Amit Daniel Kachhap <amit.daniel@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include "exynos_thermal_common.h"
|
||||
#include "exynos_tmu.h"
|
||||
#include "exynos_tmu_data.h"
|
||||
|
||||
#if defined(CONFIG_CPU_EXYNOS4210)
|
||||
static const struct exynos_tmu_registers exynos4210_tmu_registers = {
|
||||
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
|
||||
.triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT,
|
||||
.triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT,
|
||||
.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
|
||||
.buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT,
|
||||
.buf_vref_sel_mask = EXYNOS_TMU_REF_VOLTAGE_MASK,
|
||||
.buf_slope_sel_shift = EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT,
|
||||
.buf_slope_sel_mask = EXYNOS_TMU_BUF_SLOPE_SEL_MASK,
|
||||
.core_en_shift = EXYNOS_TMU_CORE_EN_SHIFT,
|
||||
.tmu_status = EXYNOS_TMU_REG_STATUS,
|
||||
.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
|
||||
.threshold_temp = EXYNOS4210_TMU_REG_THRESHOLD_TEMP,
|
||||
.threshold_th0 = EXYNOS4210_TMU_REG_TRIG_LEVEL0,
|
||||
.tmu_inten = EXYNOS_TMU_REG_INTEN,
|
||||
.inten_rise_mask = EXYNOS4210_TMU_TRIG_LEVEL_MASK,
|
||||
.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
|
||||
.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
|
||||
.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
|
||||
.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
|
||||
};
|
||||
|
||||
struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
{
|
||||
.threshold = 80,
|
||||
.trigger_levels[0] = 5,
|
||||
.trigger_levels[1] = 20,
|
||||
.trigger_levels[2] = 30,
|
||||
.trigger_enable[0] = true,
|
||||
.trigger_enable[1] = true,
|
||||
.trigger_enable[2] = true,
|
||||
.trigger_enable[3] = false,
|
||||
.trigger_type[0] = THROTTLE_ACTIVE,
|
||||
.trigger_type[1] = THROTTLE_ACTIVE,
|
||||
.trigger_type[2] = SW_TRIP,
|
||||
.max_trigger_level = 4,
|
||||
.gain = 15,
|
||||
.reference_voltage = 7,
|
||||
.cal_type = TYPE_ONE_POINT_TRIMMING,
|
||||
.min_efuse_value = 40,
|
||||
.max_efuse_value = 100,
|
||||
.first_point_trim = 25,
|
||||
.second_point_trim = 85,
|
||||
.default_temp_offset = 50,
|
||||
.freq_tab[0] = {
|
||||
.freq_clip_max = 800 * 1000,
|
||||
.temp_level = 85,
|
||||
},
|
||||
.freq_tab[1] = {
|
||||
.freq_clip_max = 200 * 1000,
|
||||
.temp_level = 100,
|
||||
},
|
||||
.freq_tab_count = 2,
|
||||
.type = SOC_ARCH_EXYNOS4210,
|
||||
.registers = &exynos4210_tmu_registers,
|
||||
.features = TMU_SUPPORT_READY_STATUS,
|
||||
},
|
||||
},
|
||||
.tmu_count = 1,
|
||||
};
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412)
|
||||
static const struct exynos_tmu_registers exynos5250_tmu_registers = {
|
||||
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
|
||||
.triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT,
|
||||
.triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT,
|
||||
.triminfo_ctrl = EXYNOS_TMU_TRIMINFO_CON,
|
||||
.triminfo_reload_shift = EXYNOS_TRIMINFO_RELOAD_SHIFT,
|
||||
.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
|
||||
.buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT,
|
||||
.buf_vref_sel_mask = EXYNOS_TMU_REF_VOLTAGE_MASK,
|
||||
.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
|
||||
.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
|
||||
.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
|
||||
.buf_slope_sel_shift = EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT,
|
||||
.buf_slope_sel_mask = EXYNOS_TMU_BUF_SLOPE_SEL_MASK,
|
||||
.core_en_shift = EXYNOS_TMU_CORE_EN_SHIFT,
|
||||
.tmu_status = EXYNOS_TMU_REG_STATUS,
|
||||
.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
|
||||
.threshold_th0 = EXYNOS_THD_TEMP_RISE,
|
||||
.threshold_th1 = EXYNOS_THD_TEMP_FALL,
|
||||
.tmu_inten = EXYNOS_TMU_REG_INTEN,
|
||||
.inten_rise_mask = EXYNOS_TMU_RISE_INT_MASK,
|
||||
.inten_rise_shift = EXYNOS_TMU_RISE_INT_SHIFT,
|
||||
.inten_fall_mask = EXYNOS_TMU_FALL_INT_MASK,
|
||||
.inten_fall_shift = EXYNOS_TMU_FALL_INT_SHIFT,
|
||||
.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
|
||||
.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
|
||||
.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
|
||||
.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
|
||||
.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
|
||||
.emul_con = EXYNOS_EMUL_CON,
|
||||
.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
|
||||
.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
|
||||
.emul_time_mask = EXYNOS_EMUL_TIME_MASK,
|
||||
};
|
||||
|
||||
#define EXYNOS5250_TMU_DATA \
|
||||
.threshold_falling = 10, \
|
||||
.trigger_levels[0] = 85, \
|
||||
.trigger_levels[1] = 103, \
|
||||
.trigger_levels[2] = 110, \
|
||||
.trigger_levels[3] = 120, \
|
||||
.trigger_enable[0] = true, \
|
||||
.trigger_enable[1] = true, \
|
||||
.trigger_enable[2] = true, \
|
||||
.trigger_enable[3] = false, \
|
||||
.trigger_type[0] = THROTTLE_ACTIVE, \
|
||||
.trigger_type[1] = THROTTLE_ACTIVE, \
|
||||
.trigger_type[2] = SW_TRIP, \
|
||||
.trigger_type[3] = HW_TRIP, \
|
||||
.max_trigger_level = 4, \
|
||||
.gain = 8, \
|
||||
.reference_voltage = 16, \
|
||||
.noise_cancel_mode = 4, \
|
||||
.cal_type = TYPE_ONE_POINT_TRIMMING, \
|
||||
.efuse_value = 55, \
|
||||
.min_efuse_value = 40, \
|
||||
.max_efuse_value = 100, \
|
||||
.first_point_trim = 25, \
|
||||
.second_point_trim = 85, \
|
||||
.default_temp_offset = 50, \
|
||||
.freq_tab[0] = { \
|
||||
.freq_clip_max = 800 * 1000, \
|
||||
.temp_level = 85, \
|
||||
}, \
|
||||
.freq_tab[1] = { \
|
||||
.freq_clip_max = 200 * 1000, \
|
||||
.temp_level = 103, \
|
||||
}, \
|
||||
.freq_tab_count = 2, \
|
||||
.type = SOC_ARCH_EXYNOS, \
|
||||
.registers = &exynos5250_tmu_registers, \
|
||||
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \
|
||||
TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
|
||||
TMU_SUPPORT_EMUL_TIME)
|
||||
|
||||
struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
{ EXYNOS5250_TMU_DATA },
|
||||
},
|
||||
.tmu_count = 1,
|
||||
};
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5440)
|
||||
static const struct exynos_tmu_registers exynos5440_tmu_registers = {
|
||||
.triminfo_data = EXYNOS5440_TMU_S0_7_TRIM,
|
||||
.triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT,
|
||||
.triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT,
|
||||
.tmu_ctrl = EXYNOS5440_TMU_S0_7_CTRL,
|
||||
.buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT,
|
||||
.buf_vref_sel_mask = EXYNOS_TMU_REF_VOLTAGE_MASK,
|
||||
.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
|
||||
.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
|
||||
.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
|
||||
.buf_slope_sel_shift = EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT,
|
||||
.buf_slope_sel_mask = EXYNOS_TMU_BUF_SLOPE_SEL_MASK,
|
||||
.calib_mode_shift = EXYNOS_TMU_CALIB_MODE_SHIFT,
|
||||
.calib_mode_mask = EXYNOS_TMU_CALIB_MODE_MASK,
|
||||
.core_en_shift = EXYNOS_TMU_CORE_EN_SHIFT,
|
||||
.tmu_status = EXYNOS5440_TMU_S0_7_STATUS,
|
||||
.tmu_cur_temp = EXYNOS5440_TMU_S0_7_TEMP,
|
||||
.threshold_th0 = EXYNOS5440_TMU_S0_7_TH0,
|
||||
.threshold_th1 = EXYNOS5440_TMU_S0_7_TH1,
|
||||
.threshold_th2 = EXYNOS5440_TMU_S0_7_TH2,
|
||||
.threshold_th3_l0_shift = EXYNOS5440_TMU_TH_RISE4_SHIFT,
|
||||
.tmu_inten = EXYNOS5440_TMU_S0_7_IRQEN,
|
||||
.inten_rise_mask = EXYNOS5440_TMU_RISE_INT_MASK,
|
||||
.inten_rise_shift = EXYNOS5440_TMU_RISE_INT_SHIFT,
|
||||
.inten_fall_mask = EXYNOS5440_TMU_FALL_INT_MASK,
|
||||
.inten_fall_shift = EXYNOS5440_TMU_FALL_INT_SHIFT,
|
||||
.inten_rise0_shift = EXYNOS5440_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS5440_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS5440_TMU_INTEN_RISE2_SHIFT,
|
||||
.inten_rise3_shift = EXYNOS5440_TMU_INTEN_RISE3_SHIFT,
|
||||
.inten_fall0_shift = EXYNOS5440_TMU_INTEN_FALL0_SHIFT,
|
||||
.tmu_intstat = EXYNOS5440_TMU_S0_7_IRQ,
|
||||
.tmu_intclear = EXYNOS5440_TMU_S0_7_IRQ,
|
||||
.tmu_irqstatus = EXYNOS5440_TMU_IRQ_STATUS,
|
||||
.emul_con = EXYNOS5440_TMU_S0_7_DEBUG,
|
||||
.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
|
||||
.tmu_pmin = EXYNOS5440_TMU_PMIN,
|
||||
};
|
||||
|
||||
#define EXYNOS5440_TMU_DATA \
|
||||
.trigger_levels[0] = 100, \
|
||||
.trigger_levels[4] = 105, \
|
||||
.trigger_enable[0] = 1, \
|
||||
.trigger_type[0] = SW_TRIP, \
|
||||
.trigger_type[4] = HW_TRIP, \
|
||||
.max_trigger_level = 5, \
|
||||
.gain = 5, \
|
||||
.reference_voltage = 16, \
|
||||
.noise_cancel_mode = 4, \
|
||||
.cal_type = TYPE_ONE_POINT_TRIMMING, \
|
||||
.cal_mode = 0, \
|
||||
.efuse_value = 0x5b2d, \
|
||||
.min_efuse_value = 16, \
|
||||
.max_efuse_value = 76, \
|
||||
.first_point_trim = 25, \
|
||||
.second_point_trim = 70, \
|
||||
.default_temp_offset = 25, \
|
||||
.type = SOC_ARCH_EXYNOS5440, \
|
||||
.registers = &exynos5440_tmu_registers, \
|
||||
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
|
||||
TMU_SUPPORT_MULTI_INST | TMU_SUPPORT_SHARED_MEMORY),
|
||||
|
||||
struct exynos_tmu_init_data const exynos5440_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
{ EXYNOS5440_TMU_DATA } ,
|
||||
{ EXYNOS5440_TMU_DATA } ,
|
||||
{ EXYNOS5440_TMU_DATA } ,
|
||||
},
|
||||
.tmu_count = 3,
|
||||
};
|
||||
#endif
|
||||
155
drivers/thermal/samsung/exynos_tmu_data.h
Normal file
155
drivers/thermal/samsung/exynos_tmu_data.h
Normal file
@ -0,0 +1,155 @@
|
||||
/*
|
||||
* exynos_tmu_data.h - Samsung EXYNOS tmu data header file
|
||||
*
|
||||
* Copyright (C) 2013 Samsung Electronics
|
||||
* Amit Daniel Kachhap <amit.daniel@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _EXYNOS_TMU_DATA_H
|
||||
#define _EXYNOS_TMU_DATA_H
|
||||
|
||||
/* Exynos generic registers */
|
||||
#define EXYNOS_TMU_REG_TRIMINFO 0x0
|
||||
#define EXYNOS_TMU_REG_CONTROL 0x20
|
||||
#define EXYNOS_TMU_REG_STATUS 0x28
|
||||
#define EXYNOS_TMU_REG_CURRENT_TEMP 0x40
|
||||
#define EXYNOS_TMU_REG_INTEN 0x70
|
||||
#define EXYNOS_TMU_REG_INTSTAT 0x74
|
||||
#define EXYNOS_TMU_REG_INTCLEAR 0x78
|
||||
|
||||
#define EXYNOS_TMU_TEMP_MASK 0xff
|
||||
#define EXYNOS_TMU_REF_VOLTAGE_SHIFT 24
|
||||
#define EXYNOS_TMU_REF_VOLTAGE_MASK 0x1f
|
||||
#define EXYNOS_TMU_BUF_SLOPE_SEL_MASK 0xf
|
||||
#define EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT 8
|
||||
#define EXYNOS_TMU_CORE_EN_SHIFT 0
|
||||
|
||||
/* Exynos4210 specific registers */
|
||||
#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP 0x44
|
||||
#define EXYNOS4210_TMU_REG_TRIG_LEVEL0 0x50
|
||||
#define EXYNOS4210_TMU_REG_TRIG_LEVEL1 0x54
|
||||
#define EXYNOS4210_TMU_REG_TRIG_LEVEL2 0x58
|
||||
#define EXYNOS4210_TMU_REG_TRIG_LEVEL3 0x5C
|
||||
#define EXYNOS4210_TMU_REG_PAST_TEMP0 0x60
|
||||
#define EXYNOS4210_TMU_REG_PAST_TEMP1 0x64
|
||||
#define EXYNOS4210_TMU_REG_PAST_TEMP2 0x68
|
||||
#define EXYNOS4210_TMU_REG_PAST_TEMP3 0x6C
|
||||
|
||||
#define EXYNOS4210_TMU_TRIG_LEVEL0_MASK 0x1
|
||||
#define EXYNOS4210_TMU_TRIG_LEVEL1_MASK 0x10
|
||||
#define EXYNOS4210_TMU_TRIG_LEVEL2_MASK 0x100
|
||||
#define EXYNOS4210_TMU_TRIG_LEVEL3_MASK 0x1000
|
||||
#define EXYNOS4210_TMU_TRIG_LEVEL_MASK 0x1111
|
||||
#define EXYNOS4210_TMU_INTCLEAR_VAL 0x1111
|
||||
|
||||
/* Exynos5250 and Exynos4412 specific registers */
|
||||
#define EXYNOS_TMU_TRIMINFO_CON 0x14
|
||||
#define EXYNOS_THD_TEMP_RISE 0x50
|
||||
#define EXYNOS_THD_TEMP_FALL 0x54
|
||||
#define EXYNOS_EMUL_CON 0x80
|
||||
|
||||
#define EXYNOS_TRIMINFO_RELOAD_SHIFT 1
|
||||
#define EXYNOS_TRIMINFO_25_SHIFT 0
|
||||
#define EXYNOS_TRIMINFO_85_SHIFT 8
|
||||
#define EXYNOS_TMU_RISE_INT_MASK 0x111
|
||||
#define EXYNOS_TMU_RISE_INT_SHIFT 0
|
||||
#define EXYNOS_TMU_FALL_INT_MASK 0x111
|
||||
#define EXYNOS_TMU_FALL_INT_SHIFT 12
|
||||
#define EXYNOS_TMU_CLEAR_RISE_INT 0x111
|
||||
#define EXYNOS_TMU_CLEAR_FALL_INT (0x111 << 12)
|
||||
#define EXYNOS_TMU_TRIP_MODE_SHIFT 13
|
||||
#define EXYNOS_TMU_TRIP_MODE_MASK 0x7
|
||||
#define EXYNOS_TMU_THERM_TRIP_EN_SHIFT 12
|
||||
#define EXYNOS_TMU_CALIB_MODE_SHIFT 4
|
||||
#define EXYNOS_TMU_CALIB_MODE_MASK 0x3
|
||||
|
||||
#define EXYNOS_TMU_INTEN_RISE0_SHIFT 0
|
||||
#define EXYNOS_TMU_INTEN_RISE1_SHIFT 4
|
||||
#define EXYNOS_TMU_INTEN_RISE2_SHIFT 8
|
||||
#define EXYNOS_TMU_INTEN_RISE3_SHIFT 12
|
||||
#define EXYNOS_TMU_INTEN_FALL0_SHIFT 16
|
||||
#define EXYNOS_TMU_INTEN_FALL1_SHIFT 20
|
||||
#define EXYNOS_TMU_INTEN_FALL2_SHIFT 24
|
||||
|
||||
#define EXYNOS_EMUL_TIME 0x57F0
|
||||
#define EXYNOS_EMUL_TIME_MASK 0xffff
|
||||
#define EXYNOS_EMUL_TIME_SHIFT 16
|
||||
#define EXYNOS_EMUL_DATA_SHIFT 8
|
||||
#define EXYNOS_EMUL_DATA_MASK 0xFF
|
||||
#define EXYNOS_EMUL_ENABLE 0x1
|
||||
|
||||
#define EXYNOS_MAX_TRIGGER_PER_REG 4
|
||||
|
||||
/*exynos5440 specific registers*/
|
||||
#define EXYNOS5440_TMU_S0_7_TRIM 0x000
|
||||
#define EXYNOS5440_TMU_S0_7_CTRL 0x020
|
||||
#define EXYNOS5440_TMU_S0_7_DEBUG 0x040
|
||||
#define EXYNOS5440_TMU_S0_7_STATUS 0x060
|
||||
#define EXYNOS5440_TMU_S0_7_TEMP 0x0f0
|
||||
#define EXYNOS5440_TMU_S0_7_TH0 0x110
|
||||
#define EXYNOS5440_TMU_S0_7_TH1 0x130
|
||||
#define EXYNOS5440_TMU_S0_7_TH2 0x150
|
||||
#define EXYNOS5440_TMU_S0_7_EVTEN 0x1F0
|
||||
#define EXYNOS5440_TMU_S0_7_IRQEN 0x210
|
||||
#define EXYNOS5440_TMU_S0_7_IRQ 0x230
|
||||
/* exynos5440 common registers */
|
||||
#define EXYNOS5440_TMU_IRQ_STATUS 0x000
|
||||
#define EXYNOS5440_TMU_PMIN 0x004
|
||||
#define EXYNOS5440_TMU_TEMP 0x008
|
||||
|
||||
#define EXYNOS5440_TMU_RISE_INT_MASK 0xf
|
||||
#define EXYNOS5440_TMU_RISE_INT_SHIFT 0
|
||||
#define EXYNOS5440_TMU_FALL_INT_MASK 0xf
|
||||
#define EXYNOS5440_TMU_FALL_INT_SHIFT 4
|
||||
#define EXYNOS5440_TMU_INTEN_RISE0_SHIFT 0
|
||||
#define EXYNOS5440_TMU_INTEN_RISE1_SHIFT 1
|
||||
#define EXYNOS5440_TMU_INTEN_RISE2_SHIFT 2
|
||||
#define EXYNOS5440_TMU_INTEN_RISE3_SHIFT 3
|
||||
#define EXYNOS5440_TMU_INTEN_FALL0_SHIFT 4
|
||||
#define EXYNOS5440_TMU_INTEN_FALL1_SHIFT 5
|
||||
#define EXYNOS5440_TMU_INTEN_FALL2_SHIFT 6
|
||||
#define EXYNOS5440_TMU_INTEN_FALL3_SHIFT 7
|
||||
#define EXYNOS5440_TMU_TH_RISE0_SHIFT 0
|
||||
#define EXYNOS5440_TMU_TH_RISE1_SHIFT 8
|
||||
#define EXYNOS5440_TMU_TH_RISE2_SHIFT 16
|
||||
#define EXYNOS5440_TMU_TH_RISE3_SHIFT 24
|
||||
#define EXYNOS5440_TMU_TH_RISE4_SHIFT 24
|
||||
#define EXYNOS5440_EFUSE_SWAP_OFFSET 8
|
||||
|
||||
#if defined(CONFIG_CPU_EXYNOS4210)
|
||||
extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
|
||||
#define EXYNOS4210_TMU_DRV_DATA (&exynos4210_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS4210_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#if (defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412))
|
||||
extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
|
||||
#define EXYNOS5250_TMU_DRV_DATA (&exynos5250_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS5250_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5440)
|
||||
extern struct exynos_tmu_init_data const exynos5440_default_tmu_data;
|
||||
#define EXYNOS5440_TMU_DRV_DATA (&exynos5440_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS5440_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#endif /*_EXYNOS_TMU_DATA_H*/
|
||||
@ -1,119 +0,0 @@
|
||||
/*
|
||||
* exynos_thermal.h - Samsung EXYNOS TMU (Thermal Management Unit)
|
||||
*
|
||||
* Copyright (C) 2011 Samsung Electronics
|
||||
* Donggeun Kim <dg77.kim@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef _LINUX_EXYNOS_THERMAL_H
|
||||
#define _LINUX_EXYNOS_THERMAL_H
|
||||
#include <linux/cpu_cooling.h>
|
||||
|
||||
enum calibration_type {
|
||||
TYPE_ONE_POINT_TRIMMING,
|
||||
TYPE_TWO_POINT_TRIMMING,
|
||||
TYPE_NONE,
|
||||
};
|
||||
|
||||
enum soc_type {
|
||||
SOC_ARCH_EXYNOS4210 = 1,
|
||||
SOC_ARCH_EXYNOS,
|
||||
};
|
||||
/**
|
||||
* struct freq_clip_table
|
||||
* @freq_clip_max: maximum frequency allowed for this cooling state.
|
||||
* @temp_level: Temperature level at which the temperature clipping will
|
||||
* happen.
|
||||
* @mask_val: cpumask of the allowed cpu's where the clipping will take place.
|
||||
*
|
||||
* This structure is required to be filled and passed to the
|
||||
* cpufreq_cooling_unregister function.
|
||||
*/
|
||||
struct freq_clip_table {
|
||||
unsigned int freq_clip_max;
|
||||
unsigned int temp_level;
|
||||
const struct cpumask *mask_val;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_platform_data
|
||||
* @threshold: basic temperature for generating interrupt
|
||||
* 25 <= threshold <= 125 [unit: degree Celsius]
|
||||
* @threshold_falling: differntial value for setting threshold
|
||||
* of temperature falling interrupt.
|
||||
* @trigger_levels: array for each interrupt levels
|
||||
* [unit: degree Celsius]
|
||||
* 0: temperature for trigger_level0 interrupt
|
||||
* condition for trigger_level0 interrupt:
|
||||
* current temperature > threshold + trigger_levels[0]
|
||||
* 1: temperature for trigger_level1 interrupt
|
||||
* condition for trigger_level1 interrupt:
|
||||
* current temperature > threshold + trigger_levels[1]
|
||||
* 2: temperature for trigger_level2 interrupt
|
||||
* condition for trigger_level2 interrupt:
|
||||
* current temperature > threshold + trigger_levels[2]
|
||||
* 3: temperature for trigger_level3 interrupt
|
||||
* condition for trigger_level3 interrupt:
|
||||
* current temperature > threshold + trigger_levels[3]
|
||||
* @trigger_level0_en:
|
||||
* 1 = enable trigger_level0 interrupt,
|
||||
* 0 = disable trigger_level0 interrupt
|
||||
* @trigger_level1_en:
|
||||
* 1 = enable trigger_level1 interrupt,
|
||||
* 0 = disable trigger_level1 interrupt
|
||||
* @trigger_level2_en:
|
||||
* 1 = enable trigger_level2 interrupt,
|
||||
* 0 = disable trigger_level2 interrupt
|
||||
* @trigger_level3_en:
|
||||
* 1 = enable trigger_level3 interrupt,
|
||||
* 0 = disable trigger_level3 interrupt
|
||||
* @gain: gain of amplifier in the positive-TC generator block
|
||||
* 0 <= gain <= 15
|
||||
* @reference_voltage: reference voltage of amplifier
|
||||
* in the positive-TC generator block
|
||||
* 0 <= reference_voltage <= 31
|
||||
* @noise_cancel_mode: noise cancellation mode
|
||||
* 000, 100, 101, 110 and 111 can be different modes
|
||||
* @type: determines the type of SOC
|
||||
* @efuse_value: platform defined fuse value
|
||||
* @cal_type: calibration type for temperature
|
||||
* @freq_clip_table: Table representing frequency reduction percentage.
|
||||
* @freq_tab_count: Count of the above table as frequency reduction may
|
||||
* applicable to only some of the trigger levels.
|
||||
*
|
||||
* This structure is required for configuration of exynos_tmu driver.
|
||||
*/
|
||||
struct exynos_tmu_platform_data {
|
||||
u8 threshold;
|
||||
u8 threshold_falling;
|
||||
u8 trigger_levels[4];
|
||||
bool trigger_level0_en;
|
||||
bool trigger_level1_en;
|
||||
bool trigger_level2_en;
|
||||
bool trigger_level3_en;
|
||||
|
||||
u8 gain;
|
||||
u8 reference_voltage;
|
||||
u8 noise_cancel_mode;
|
||||
u32 efuse_value;
|
||||
|
||||
enum calibration_type cal_type;
|
||||
enum soc_type type;
|
||||
struct freq_clip_table freq_tab[4];
|
||||
unsigned int freq_tab_count;
|
||||
};
|
||||
#endif /* _LINUX_EXYNOS_THERMAL_H */
|
||||
Loading…
Reference in New Issue
Block a user