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path: root/drivers/thermal/rockchip_thermal.c
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* thermal: rockchip: Support the RK3399 SoCs in thermal driverCaesar Wang2016-01-061-0/+66
| | | | | | | | The RK3399 SoCs have two Temperature Sensors, channel 0 is for CPU. channel 1 is for GPU. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: Support the RK3228 SoCs in thermal driverCaesar Wang2016-01-061-0/+81
| | | | | | | The RK3228 SoCs has one Temperature Sensor, channel 0 is for CPU. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: fix a trivial typoCaesar Wang2016-01-061-12/+13
| | | | | | | This patchset trys to dictate unified format for driver. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: Support the RK3368 SoCs in thermal driverCaesar Wang2015-11-121-0/+72
| | | | | | | | | | | The RK3368 SoCs support to 2 channel TS-ADC, the temperature criteria of each channel can be configurable. The system has two Temperature Sensors, channel 0 is for CPU, and channel 1 is for GPU. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: consistently use int for temperaturesCaesar Wang2015-11-121-8/+8
| | | | | | | | | | As Temperature is currently represented as int not long in the thermal framework since use int intead of unsigned long/long to represent temperature to avoid bogus overheat detection when negative temperature reported. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: Add the sort mode for adc value increment or decrementCaesar Wang2015-11-121-15/+53
| | | | | | | | | | | | The conversion table has the adc value and temperature. In fact, the adc value only has the increment or decrement mode in conversion table. Moment, we can add the sort mode to be better support the *code_to_temp* for differenr SoCs. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: improve the conversion functionCaesar Wang2015-11-121-27/+55
| | | | | | | | We should make the conversion table in as a parameter since the different SoCs have the different conversionion table. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: trivial: fix typo in commitCaesar Wang2015-11-121-9/+13
| | | | | Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: better to compatible the driver for different SoCsCaesar Wang2015-11-121-38/+48
| | | | | | | | | | | The current driver is default to register the two thermal sensors in probe since some SoCs maybe only have one sensor for thermal. In some cases, the channel 0 is not always the cpu or gpu sensor. So add the channel can be configured for sensors. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: fix compile errorCaesar Wang2015-11-111-0/+1
| | | | | | | | | | | | | | | | | Missing a include file caused compile error. drivers/thermal/rockchip_thermal.c: In function 'rockchip_thermal_suspend': drivers/thermal/rockchip_thermal.c:720:2: error: implicit declaration of function 'pinctrl_pm_select_sleep_state' [-Werror=implicit-function-declaration] ... Fixes: 7e38a5b1daa1 ("thermal: rockchip: support the sleep pinctrl state to avoid glitches") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* thermal: rockchip: support the sleep pinctrl state to avoid glitches in s2rCaesar Wang2015-11-031-0/+4
| | | | | | | | | | | | | | | | | | When we come out of system suspend state (S3) the tsadc will have been reset and back at its default state. While reprogramming the tsadc it's possible that we'll glitch the output and unintentionally cause the "over temperature" GPIO to be asserted. Since the over temperature GPIO is often hooked up to something that will cause a reboot or shutdown in hardware, this glitch can be catastrophic on some boards. We'll add support for selecting the "sleep" pinctrl state at suspend time. Boards can use this to effectively disable the tsadc at suspend time and avoid glitches when the system is resumed. Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockhip: fix setting thermal shutdown polarityDmitry Torokhov2015-10-301-6/+4
| | | | | | | | | | | | | When requested thermal shutdown signal polarity is low we need to make sure that the bit representing high level of signal is reset, and not set all other bits in that register. Also rename TSADCV2_INT_PD_CLEAR to TSADCV2_INT_PD_CLEAR_MASK to better reflect its nature. Acked-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: rockchip: fix handling of invalid readingsDmitry Torokhov2015-10-301-15/+13
| | | | | | | | | | | | | | | | | | | | We attempted to signal invalid code by returning -EAGAIN from rk_tsadcv2_code_to_temp(), unfortunately the return value was stuffed directly into the temperature pointer, potentially confusing upper layers with temperature of -EINVAL. Let's split temperature from error/success indicator to avoid such confusion. Also change the way we scan the temperature table to start with the 2nd element so that we do not need to worry that we may reference out of bounds element while doing binary search and keep checking that we end up with 'mid' equal to 0 (since we are looking for the temperature that would fall into interval between the 'mid' and 'mid - 1') . Tested-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: consistently use int for temperaturesSascha Hauer2015-08-031-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The thermal code uses int, long and unsigned long for temperatures in different places. Using an unsigned type limits the thermal framework to positive temperatures without need. Also several drivers currently will report temperatures near UINT_MAX for temperatures below 0°C. This will probably immediately shut the machine down due to overtemperature if started below 0°C. 'long' is 64bit on several architectures. This is not needed since INT_MAX °mC is above the melting point of all known materials. Consistently use a plain 'int' for temperatures throughout the thermal code and the drivers. This only changes the places in the drivers where the temperature is passed around as pointer, when drivers internally use another type this is not changed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Peter Feuerer <peter@piie.net> Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Jean Delvare <jdelvare@suse.de> Cc: Peter Feuerer <peter@piie.net> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-acpi@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Cc: Guenter Roeck <linux@roeck-us.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Darren Hart <dvhart@infradead.org> Cc: lm-sensors@lm-sensors.org Signed-off-by: Zhang Rui <rui.zhang@intel.com>
* thermal: rockchip: fix an error codeDan Carpenter2015-05-091-1/+1
| | | | | | | | | | | | There is a copy and paste bug, "->clk" vs "->pclk", so we return the wrong error code here. Fixes: cbac8f639437 ('thermal: rockchip: add driver for thermal') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
* thermal: rockchip: make temperature reporting much more accurateCaesar Wang2015-01-241-13/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | In general, the kernel should report temperature readings exactly as reported by the hardware. The cpu / gpu thermal driver works in 5 degree increments,but we ought to do more accurate. The temperature will do linear interpolation between the entries in the table. Test= $md5sum /dev/zero & $while true; do grep "" /sys/class/thermal/thermal_zone[1-2]/temp; sleep .5; done e.g. We can get the result as follows: /sys/class/thermal/thermal_zone1/temp:39994 /sys/class/thermal/thermal_zone2/temp:39086 /sys/class/thermal/thermal_zone1/temp:39994 /sys/class/thermal/thermal_zone2/temp:39540 /sys/class/thermal/thermal_zone1/temp:39540 /sys/class/thermal/thermal_zone2/temp:39540 /sys/class/thermal/thermal_zone1/temp:39540 /sys/class/thermal/thermal_zone2/temp:39994 Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
* thermal: drop owner assignment from platform_driversWolfram Sang2014-12-221-1/+0
| | | | | | | This platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* thermal: rockchip: add driver for thermalCaesar Wang2014-11-241-0/+693
Thermal is TS-ADC Controller module supports user-defined mode and automatic mode. User-defined mode refers,TSADC all the control signals entirely by software writing to register for direct control. Automaic mode refers to the module automatically poll TSADC output, and the results were checked.If you find that the temperature High in a period of time,an interrupt is generated to the processor down-measures taken;If the temperature over a period of time High, the resulting TSHUT gave CRU module,let it reset the entire chip, or via GPIO give PMIC. Signed-off-by: zhaoyifeng <zyf@rock-chips.com> Signed-off-by: Caesar Wang <caesar.wang@rock-chips.com> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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