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path: root/drivers/thermal/rockchip_thermal.c
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2018-12-29thermal: rockchip: add pinctrl controlElaine Zhang
Based on the TSADC Tshut mode to select pinctrl, instead of setting pinctrl based on architecture (Not depends on pinctrl setting by "init" or "default"). And it requires setting the tshut polarity before select pinctrl. Change-Id: Iac9ca05073b0181ee13b0048d0c2a54204f82bca Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
2018-11-01thermal: rockchip: Add a new initialize function for rk1808Finley Xiao
As clock frequency should be between 500KHz and 800KHz, inter_pd_soc should be no less than 90us and bandgap chopper function should be enabled, add a new initialize function to handle the power sequence for rk1808 SoCs. Change-Id: Ia1ad81783ccc34bc4218dbbd62f7710ee0773b0a Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
2018-10-09thermal: rockchip: Use incremental code table for rk1808Finley Xiao
Change-Id: I2d0f379fb08eaf4a4819bc36bcb61e5ca4a50d45 Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
2018-09-30UPSTREAM: thermal: rockchip: Support the RV1108 SoC in thermal driverRocky Hao
RV1108 SOC has one Temperature Sensor for CPU. Reviewed-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com> (cherry picked from commit 4eca8cac256a9557f9e1295147df8135c0b3540f) Change-Id: I23c67c5fde2ec243efa84961c001fcad4468cb7b Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
2018-08-28thermal: rockchip: add tsadc support for rk1808Elaine Zhang
Change-Id: Icc0bb8a076a3fbd5f8ab70db8d7e032165528ae8 Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
2018-06-01thermal: rockchip: tune tsadc parameter of temperature predictionRocky Hao
init temp_last with a more suitable value. also we eliminate the steady state error by ajusting the temp calc fomular. extra useful log is added to mark tsadc is probed successfully. Change-Id: If88031c10646437fa7b5152c70aeaebf93e4df05 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2018-03-28thermal: rockchip: add shutdown callback functionRocky Hao
Tsadc has a tshut pin which is designed to reset the pmic or soc, when the temperature inside soc is too high. we should switch off the tshut function and change the pin to gpio function in reboot process, eg, software reset. If not, the tsadc module will WRONGLY pull high the tshut pin during its reset process and then WRONGLY reset the pmic or soc, which incurred a hardware reset. The hardware reset will reset everything inside soc, even includes the power on reason flag, which is set by software before reboot process. we also change over-temperature protection mode to cru mode, since the tshut pin have be changed to gpio function. Change-Id: Iac3dacf55a4b5536fccd2eb05a6a9e6923a082c0 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2018-03-09thermal: rockchip: add tsadc support for rk3308Rocky Hao
Change-Id: Ibf1782ca471c8ad4b14d6fd64eeb123181903adc Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2018-02-10thermal: rockchip: fix channal invertion issue for px30Rocky Hao
Change-Id: Ifed5628c18cece0658754095e718da39ac703413 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2018-01-18thermal: rockchip: add tsadc support for px30Rocky Hao
Change-Id: I46ac8ebd4a92367acb610fb96c18a487c67602d4 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2017-10-25thermal: rockchip: rk3288: fix temperature-jump issueRocky Hao
Due to 32k clock jitter, tsadc will wrongly report a very high temperature, that is a temperature-jump. This may lead to an abnormal OS reboot. A filter function is added to predict the true temperature. Change-Id: I5b5641efe8e64b4058a604f274350b1e94584fa6 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2017-02-27thermal: rockchip: add rk3328 supportRocky Hao
Change-Id: I31f87741a874657fb7caf494ebafd53b6c0ef3b1 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2016-11-22UPSTREAM: thermal: rockchip: improve the warning logShawn Lin
It is no necessary to print warning agian and again if we don't add rockchip,grf for dt, otherwise I saw the following log when doing suspend-2-resume. We only need to print it once when parsing dt. It looks quite trivial but the log is apparently verbose. [ 26.615415] PM: early resume of devices complete after 1.539 msecs [ 26.622002] rk_tsadcv2_initialize: Missing rockchip,grf property [ 26.629359] rk_gmac-dwmac ff290000.ethernet: init for RGMII [ 26.639794] PM: resume of devices complete after 18.109 msecs [ 26.646925] Restarting tasks ... done. Change-Id: Ia3124f557e2b4f47c691671d27ea6a0f136f3f6f Reviewed-by: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> (cherry picked from git.kernel.org evalenti/linux-soc-thermal.git next commit 947d62b53ff381d1ca4b3288b53a26c6d38957aa)
2016-08-26thermal: rockchip: add temperature dump when panicRocky Hao
Change-Id: I8cf3bbaea76d379dcfd1c89482254854df62cfea Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2016-07-19thermal: rockchip: rk3399: enhance the tsadc's bandgap featureRocky Hao
Due to the voltage ripple, the sensing data of the tsadc is not accurate. And in this patch, the bandgap feature is enhanced to remove the voltage ripple, and then the tsadc can sense the temperature more precisely. Obsolete codes are removed as well. Change-Id: Ifdd98def63212bc13306e7d5befee5eb32dbbc2f Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2016-07-07FIXUP: FROMLIST: thermal: rockchip: fixes the exception interruptsCaesar Wang
The hardware-tracked trips will set the alarm interrupt value for registers. Then when the thermal zone has no trips to be set, That make the thermal trips callback a over range value. The root cause is the rk_tsadcv2_temp_to_code() function to handle the invalid temperature range is indeed incorrect, let's fix it on now. Otherwise, the thermal alarm interrupt will be triggered all the time on some SoCs. Fox example: localhost tmp # grep thermal /proc/interrupts; sleep 5; grep thermal /proc/interrupts 23: 994830 .. GICv3 129 Level rockchip_thermal 23: 1003423 .. GICv3 129 Level rockchip_thermal Change-Id: I0ddbd0b2dd9c03e785e588f5f339f1eeed4e1c5c Reported-by: Rocky Hao <rocky.hao@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: linux-pm@vger.kernel.org (am from https://patchwork.kernel.org/patch/9192357/)
2016-07-06thermal: rockchip: optimize sensor auto accessing periodRocky Hao
In less than 10 ms, the temperature of soc will arise 10 degree. 250 ms is too big for soc tempeture control. Setting 2.5 ms will speed up temperature accessing speed but introduce no more cpu's computing overhead. We set AUTO_PERIOD_TIME and TSADCV3_AUTO_PERIOD_HT_TIME the same value, because normal temperature update speed is also our consern in IPA. Change-Id: Ie8038a1ae5837ad4aa31b04d1f3ace299f82e396 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
2016-04-26thermal: rockchip: fixes the period time for tsadcCaesar Wang
we should increase the period cycles to save power since the rk3399 has the high frequency for tsadc clock. Change-Id: Ia9481515cac6dd6026d3312ac930329a3e906436 Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-04-26thermal: rockchip: add the set_trips functionCaesar Wang
Whenever the current temperature is updated, the trip points immediately below and above the current temperature are found. A sensor driver callback `set_trips' is then called with the temperatures. Lastly, The sensor will trigger the hardware high temperature interrupts to increase the sampleing rate and throttle frequency to limit the temperature rising When performing passive cooling. Change-Id: I16b2ab4f8fb85425aab5cd3777ca600bd4cace20 Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-04-26Revert "thermal: rockchip: add the set_trips function"Caesar Wang
This reverts commit ec24f1ae50a370c9ef7b7166156b79b4d4feee5f. Change-Id: I1fa579309691ac20d22bebf9f9cea1cd2243440f Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-04-18FROMLIST: thermal: rockchip: disable thermal->clk in err caseShawn Lin
Disable thermal->clk when enabling pclk fails in resume routine. Change-Id: I7d8780be04891bf4cddf1ba970eae2a2f14ec7ac Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> (am from https://patchwork.kernel.org/patch/8867151/)
2016-04-15thermal: rockchip: add the set_trips functionCaesar Wang
Whenever the current temperature is updated, the trip points immediately below and above the current temperature are found. A sensor driver callback `set_trips' is then called with the temperatures. Lastly, The sensor will trigger the hardware high temperature interrupts to increase the sampleing rate and throttle frequency to limit the temperature rising When performing passive cooling. Change-Id: I43d37a8431240cb7b62da7bff83464aba3c8983e Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-04-13thermal: rockchip: add the notes for better readingCaesar Wang
To update the notes for keeping in mind that quickly in case someone re-read this driver in the future. Change-Id: Ic752ed1d6a818f21560befd981383e8b532dff36 Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-04-13thermal: rockchip: add the interleave value settingRocky Hao
The interleave is between power down and start of conversion, This patch adds to workaround ic time sync issue for control. Change-Id: Ib9f28fd92bcecf8ddaa8a69d47ced87fef04e7c6 Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-04-13thermal: rockchip: Support RK3366 SoCs in the thermal driverElaine Zhang
The RK3366 SoCs have two Temperature Sensors, channel 0 is for CPU channel 1 is for GPU. Change-Id: I71324c65e82804f52d464b986e1d86127f8dc040 Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
2016-04-05thermal: rockchip: fixes the code_to_temp for tsadc driverCaesar Wang
We should judge the table.id[mid].code insearch algorithm on matter the adc value increment or decrement. Or otherwise, the temperature return the incorrect value in some cases. [ 1.438589] adc_val=402,temp=-40000 [ 1.438903] adc_val=403,temp=-39375 [ 1.439217] adc_val=404,temp=-38750 ... [ 1.441102] adc_val=410,temp=-40000 [ 1.441416] adc_val=411,temp=-34445 [ 1.441737] adc_val=412,temp=-33889 ... Let's fix it right now. Fixes commit 020ba95 "thermal: rockchip: Add the sort mode for adc value increment or decrement" Change-Id: Icac84d06ebf463439ca11db5a19d629b4b2b865c Reported-by: Rocky Hao <rocky.hao@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-03-31UPSTREAM: thermal: convert rockchip_thermal to use ↵Eduardo Valentin
devm_thermal_zone_of_sensor_register This changes the driver to use the devm_ version of thermal_zone_of_sensor_register and cleans up the local points and unregister calls. Change-Id: I9c13e9c91a626a0ef8df69edf3f383c494536bab Cc: Zhang Rui <rui.zhang@intel.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: linux-pm@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Cc: linux-kernel@vger.kernel.org Tested-by: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> (cherry picked from git.kernel.org next/linux-next.git master commit 93c2f85df90edfc515f99cacd7720e286861f744)
2016-03-25thermal: rockchip: handle the power sequence for rk3399 SoCsCaesar Wang
This adds the grf property to handle the tsadc power sequence on rk3399 SoCs. The rk3399 tsadc can work with this patch on now. while true; do grep "" /sys/class/thermal/thermal_zone[0-1]/temp;sleep .5; done /sys/class/thermal/thermal_zone0/temp:40555 /sys/class/thermal/thermal_zone1/temp:41111 /sys/class/thermal/thermal_zone0/temp:40555 /sys/class/thermal/thermal_zone1/temp:41111 /sys/class/thermal/thermal_zone0/temp:40555 /sys/class/thermal/thermal_zone1/temp:41666 /sys/class/thermal/thermal_zone0/temp:40555 /sys/class/thermal/thermal_zone1/temp:41111 /sys/class/thermal/thermal_zone0/temp:40555 /sys/class/thermal/thermal_zone1/temp:41111 /sys/class/thermal/thermal_zone0/temp:40555 Change-Id: I0155826bddf0017ea4985920268b333a20278bbe Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-03-25thermal: rockchip: update the tsadc table for rk3399Caesar Wang
This patch fixes the incorrect conversion table. The Code to Temperature mapping is updated based on sillcon results. Change-Id: If8ae3f5fb59786a8db8bf79276ecea44ab92ffc9 Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-03-01UPSTREAM: thermal: rockchip: fix the tsadc sequence output on rk3228/rk3399Caesar Wang
As the TRM says, add the tsadc_q_sel to control the temperature-code sequence since the rk3228/rk3399 need set this bit (1024 - tsadc_q) as output. Fixes: commit b0d7033 "thermal: rockchip: Support the RK3399 SoCs in thermal driver" 7b02a5e "thermal: rockchip: Support the RK3228 SoCs in thermal driver" Reported-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com> (cherry picked from git.kernel.org evalenti/linux-soc-thermal fixes commit 7ea38c6c3622bc65279dc6a1fecd28227027fbb5) Change-Id: I9d39b947e197393688ed58bf079e519e7d5a6d9e
2016-03-01UPSTREAM: thermal: rockchip: the rename compatibles for rockchip SoCsCaesar Wang
This patch renames to be more adapter compatibles since more and more SoCs are supported in thermal driver. Reported-by: Huang,Tao <huangtao@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com> (cherry picked from git.kernel.org evalenti/linux-soc-thermal fixes commit 952418a34f26f252cd0afbca8c33a8506a03cab7) Change-Id: Ia053d6877a16b36e357bd9b427b323703e5a514b
2016-02-03thermal: rockchip: fix a impossible condition caused by the warningCaesar Wang
As the Dan report the smatch check the thermal driver warning: drivers/thermal/rockchip_thermal.c:551 rockchip_configure_from_dt() warn: impossible condition '(thermal->tshut_temp > ((~0 >> 1))) => (s32min-s32max > s32max)' Although The shut_temp read from DT is u32,the temperature is currently represented as int not long in the thermal driver. Let's change to make shut_temp instead of the thermal->tshut_temp for the condition. Fixes: commit 437df2172e8d ("thermal: rockchip: consistently use int for temperatures") Change-Id: I7951bf83baec2ef0ae8fe50d5735f992a7d3ed41 Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-02-03thermal: rockchip: Support the RK3399 SoCs in thermal driverCaesar Wang
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> (cherry picked from git.kernel.org torvalds/linux.git master commit b0d70338bca22cb14367042a9d5cead116e7f2d9) Change-Id: I12bccb3c4a56c56f16a019c3faad909bfae65b97 Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-02-03thermal: rockchip: Support the RK3228 SoCs in thermal driverCaesar Wang
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> (cherry picked from git.kernel.org torvalds/linux.git master commit 7b02a5e782fa151a610c455ac06e5a998e9cb3f3) Change-Id: I45def60892a8f5cd6fd18ad064b4bf7c13260b59 Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2016-02-01thermal: rockchip: fix calculation error for code_to_tempElaine Zhang
the calculation use a global table, not their own table. so adapt the table to the correct one. Change-Id: Id416e41910de297259a85a3ae06f4cc3c5788035 Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
2016-01-26thermal: rockchip: fix a trivial typoCaesar Wang
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> (cherry picked from git.kernel.org torvalds/linux.git master commit 13c1cfda1a6cb0325029ce8bbb8d6483244d5c92) Change-Id: I9659ae150c9d24f2482fd8c285dcfeb65bf873b1 Signed-off-by: Caesar Wang <wxt@rock-chips.com>
2015-11-12thermal: rockchip: Support the RK3368 SoCs in thermal driverCaesar Wang
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>
2015-11-12thermal: rockchip: consistently use int for temperaturesCaesar Wang
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>
2015-11-12thermal: rockchip: Add the sort mode for adc value increment or decrementCaesar Wang
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>
2015-11-12thermal: rockchip: improve the conversion functionCaesar Wang
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>
2015-11-12thermal: rockchip: trivial: fix typo in commitCaesar Wang
Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-11-12thermal: rockchip: better to compatible the driver for different SoCsCaesar Wang
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>
2015-11-11thermal: rockchip: fix compile errorCaesar Wang
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>
2015-11-03thermal: rockchip: support the sleep pinctrl state to avoid glitches in s2rCaesar Wang
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>
2015-10-30thermal: rockhip: fix setting thermal shutdown polarityDmitry Torokhov
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>
2015-10-30thermal: rockchip: fix handling of invalid readingsDmitry Torokhov
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>
2015-08-03thermal: consistently use int for temperaturesSascha Hauer
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>
2015-05-09thermal: rockchip: fix an error codeDan Carpenter
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>
2015-01-24thermal: rockchip: make temperature reporting much more accurateCaesar Wang
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>
2014-12-22thermal: drop owner assignment from platform_driversWolfram Sang
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>
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