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2014-01-03intel_powerclamp: Fix cstate counter detection.Yuxuan Shui1-1/+10
Having all zero cstate count doesn't necesserily mean the cstate counter is no functional. Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-03thermal: imx: add necessary clk operationAnson Huang1-0/+20
Thermal sensor needs pll3_usb_otg when measuring temperature, otherwise the temperature read will be incorrect, so need to enable this clk before sensor working, for alarm function, as hardware will take measurement periodically, so we should keep this clk always on once alarm function is enabled. Signed-off-by: Anson Huang <b20788@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02Merge branches 'misc', 'soc', 'soc-eduardo' and 'int3404-thermal' of .git ↵Zhang Rui12-45/+1322
into next
2014-01-02Thermal cpu cooling: return error if no valid cpu frequency entryZhang Rui1-0/+5
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02thermal: fix cpu_cooling max_level behaviorEduardo Valentin1-2/+4
As per Documentation/thermal/sysfs-api.txt, max_level is an index, not a counter. Thus, in case a CPU has 3 valid frequencies, max_level is expected to be 2, for instance. The current code makes max_level == number of valid frequencies, which is bogus. This patch fix the cpu_cooling device by ranging max_level properly. Reported-by: Carlos Hernandez <ceh@ti.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02thermal: rcar-thermal: Enable driver compilation with COMPILE_TESTLaurent Pinchart1-1/+1
This helps increasing build testing coverage. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <eduardo.valentin@ti.com> Cc: linux-pm@vger.kernel.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Simon Horman <horms@verge.net.au> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02thermal: debug: add debug statement for core and step_wiseAaron Lu2-0/+12
To ease debugging thermal problem, add these dynamic debug statements so that user do not need rebuild kernel to see these info. Based on a patch from Zhang Rui for debugging on bugzilla: https://bugzilla.kernel.org/attachment.cgi?id=98671 A sample output after we turn on dynamic debug with the following cmd: # echo 'module thermal_sys +fp' > /sys/kernel/debug/dynamic_debug/control is like: [ 355.147627] update_temperature: thermal thermal_zone0: last_temperature=52000, current_temperature=55000 [ 355.147636] thermal_zone_trip_update: thermal thermal_zone0: Trip1[type=1,temp=79000]:trend=2,throttle=0 [ 355.147644] get_target_state: thermal cooling_device8: cur_state=0 [ 355.147647] thermal_zone_trip_update: thermal cooling_device8: old_target=-1, target=-1 [ 355.147652] get_target_state: thermal cooling_device7: cur_state=0 [ 355.147655] thermal_zone_trip_update: thermal cooling_device7: old_target=-1, target=-1 [ 355.147660] get_target_state: thermal cooling_device6: cur_state=0 [ 355.147663] thermal_zone_trip_update: thermal cooling_device6: old_target=-1, target=-1 [ 355.147668] get_target_state: thermal cooling_device5: cur_state=0 [ 355.147671] thermal_zone_trip_update: thermal cooling_device5: old_target=-1, target=-1 [ 355.147678] thermal_zone_trip_update: thermal thermal_zone0: Trip2[type=0,temp=90000]:trend=1,throttle=0 [ 355.147776] get_target_state: thermal cooling_device0: cur_state=0 [ 355.147783] thermal_zone_trip_update: thermal cooling_device0: old_target=-1, target=-1 [ 355.147792] thermal_zone_trip_update: thermal thermal_zone0: Trip3[type=0,temp=80000]:trend=1,throttle=0 [ 355.147845] get_target_state: thermal cooling_device1: cur_state=0 [ 355.147849] thermal_zone_trip_update: thermal cooling_device1: old_target=-1, target=-1 [ 355.147856] thermal_zone_trip_update: thermal thermal_zone0: Trip4[type=0,temp=70000]:trend=1,throttle=0 [ 355.147904] get_target_state: thermal cooling_device2: cur_state=0 [ 355.147908] thermal_zone_trip_update: thermal cooling_device2: old_target=-1, target=-1 [ 355.147915] thermal_zone_trip_update: thermal thermal_zone0: Trip5[type=0,temp=60000]:trend=1,throttle=0 [ 355.147963] get_target_state: thermal cooling_device3: cur_state=0 [ 355.147967] thermal_zone_trip_update: thermal cooling_device3: old_target=-1, target=-1 [ 355.147973] thermal_zone_trip_update: thermal thermal_zone0: Trip6[type=0,temp=55000]:trend=1,throttle=1 [ 355.148022] get_target_state: thermal cooling_device4: cur_state=0 [ 355.148025] thermal_zone_trip_update: thermal cooling_device4: old_target=-1, target=1 [ 355.148036] thermal_cdev_update: thermal cooling_device4: zone0->target=1 [ 355.169279] thermal_cdev_update: thermal cooling_device4: set to state 1 Signed-off-by: Aaron Lu <aaron.lu@intel.com> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02thermal: imx_thermal: add module device tableRussell King1-0/+1
Add the module device table declaration so the module can be loaded automatically at boot time. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02drivers: thermal: Mark function as static in x86_pkg_temp_thermal.cRashika1-1/+1
Mark function sys_set_trip_temp() as static in x86_pkg_temp_thermal.c because it is not used outside this file. This eliminates the following warning in x86_pkg_temp_thermal.c: drivers/thermal/x86_pkg_temp_thermal.c:218:5: warning: no previous prototype for ‘sys_set_trip_temp’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02thermal:samsung: fix compilation warningNaveen Krishna Chatradhi1-1/+1
This patch fixes a compilation warning. warning: passing argument 5 of 'thermal_zone_device_register' discards 'const' qualifier from pointer target type [enabled by default] include/linux/thermal.h:270:29: note: expected 'struct thermal_zone_device_ops *' but argument is of type 'const struct thermal_zone_device_ops *' Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02thermal: imx: correct suspend/resume flowAnson Huang1-14/+17
Fixes regression introduced by: commit 37713a1e8e4c1a1067ad4c99296f78d3c82ed9c4 Author: Philipp Zabel <p.zabel@pengutronix.de> Date: Thu Aug 1 18:33:12 2013 +0200 thermal: imx: implement thermal alarm interrupt handling The commit 37713a1e8e4 makes imx thermal sensor always powered up as alarm function is enabled, but the suspend callback of imx thermal returns success only if thermal sensor is powered down, so it will always returns fail hence break system's suspend, this patch disables imx thermal sensor before suspend and re-enable it after resume. Signed-off-by: Anson Huang <b20788@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02thermal: exynos: fix error return codeJulia Lawall1-0/+1
Set the return variable to an error code as done elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-01-02Thermal: ACPI INT3403 thermal driverSrinivas Pandruvada3-0/+245
The ACPI INT3403 device objects present on some systems can be used to retrieve temperature data from thermal sensors. Add a driver registering each INT3403 device object as a thermal zone device and exposing its _TMP, PATx and GTSH method via the standard thermal control interface under /sys/class/thermal/. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-12-19x86, acpi, idle: Restructure the mwait idle routinesPeter Zijlstra1-3/+1
People seem to delight in writing wrong and broken mwait idle routines; collapse the lot. This leaves mwait_play_dead() the sole remaining user of __mwait() and new __mwait() users are probably doing it wrong. Also remove __sti_mwait() as its unused. Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Jacob Jun Pan <jacob.jun.pan@linux.intel.com> Cc: Mike Galbraith <bitbucket@online.de> Cc: Len Brown <lenb@kernel.org> Cc: Rui Zhang <rui.zhang@intel.com> Acked-by: Rafael Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20131212141654.616820819@infradead.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-12-04thermal: ti-soc-thermal: use thermal DT infrastructureEduardo Valentin1-15/+62
This patch improves the ti-soc-thermal driver by adding the support to build the thermal zones based on DT nodes. The driver will have two options now to build the thermal zones. The first option is the zones originally coded in this driver. So, the driver behavior will be same if there is no DT node describing the zones. The second option, when it is found a DT node with thermal data, will used the common infrastructure to build the thermal zone and bind its cooling devices. In case the driver loads thermal data using the legacy mode, this driver still adds to the system a cpufreq cooling device. Loading the thermal data from DT, the driver assumes someone else will add the cpufreq cooling device, like the cpufreq driver. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-12-04thermal: cpu_cooling: introduce of_cpufreq_cooling_registerEduardo Valentin2-6/+51
This patch introduces an API to register cpufreq cooling device based on device tree node. The registration via device tree node differs from normal registration due to the fact that it is needed to fill the device_node structure in order to be able to match the cooling devices with trip points. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-12-04thermal: core: introduce thermal_of_cooling_device_registerEduardo Valentin1-4/+54
This patch adds a new API to allow registering cooling devices in the thermal framework derived from device tree nodes. This API links the cooling device with the device tree node so that binding with thermal zones is possible, given that thermal zones are pointing to cooling device device tree nodes. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-12-04thermal: introduce device tree parserEduardo Valentin5-1/+880
This patch introduces a device tree bindings for describing the hardware thermal behavior and limits. Also a parser to read and interpret the data and feed it in the thermal framework is presented. This patch introduces a thermal data parser for device tree. The parsed data is used to build thermal zones and thermal binding parameters. The output data can then be used to deploy thermal policies. This patch adds also documentation regarding this API and how to define tree nodes to use this infrastructure. Note that, in order to be able to have control on the sensor registration on the DT thermal zone, it was required to allow changing the thermal zone .get_temp callback. For this reason, this patch also removes the 'const' modifier from the .ops field of thermal zone devices. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-12-04thermal: allow registering without .get_tempEduardo Valentin1-2/+8
This patch changes the thermal core driver to allow registration of thermal zones without the .get_temp callback. The idea behind this change is to allow lazy registration of sensor callbacks. The thermal zone will be disabled whenever the ops does not contain a .get_temp callback. The sysfs interface will be returning -EINVAL on any temperature read operation. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-11-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-16/+9
Pull networking fixes from David Miller: "Mostly these are fixes for fallout due to merge window changes, as well as cures for problems that have been with us for a much longer period of time" 1) Johannes Berg noticed two major deficiencies in our genetlink registration. Some genetlink protocols we passing in constant counts for their ops array rather than something like ARRAY_SIZE(ops) or similar. Also, some genetlink protocols were using fixed IDs for their multicast groups. We have to retain these fixed IDs to keep existing userland tools working, but reserve them so that other multicast groups used by other protocols can not possibly conflict. In dealing with these two problems, we actually now use less state management for genetlink operations and multicast groups. 2) When configuring interface hardware timestamping, fix several drivers that simply do not validate that the hwtstamp_config value is one the driver actually supports. From Ben Hutchings. 3) Invalid memory references in mwifiex driver, from Amitkumar Karwar. 4) In dev_forward_skb(), set the skb->protocol in the right order relative to skb_scrub_packet(). From Alexei Starovoitov. 5) Bridge erroneously fails to use the proper wrapper functions to make calls to netdev_ops->ndo_vlan_rx_{add,kill}_vid. Fix from Toshiaki Makita. 6) When detaching a bridge port, make sure to flush all VLAN IDs to prevent them from leaking, also from Toshiaki Makita. 7) Put in a compromise for TCP Small Queues so that deep queued devices that delay TX reclaim non-trivially don't have such a performance decrease. One particularly problematic area is 802.11 AMPDU in wireless. From Eric Dumazet. 8) Fix crashes in tcp_fastopen_cache_get(), we can see NULL socket dsts here. Fix from Eric Dumzaet, reported by Dave Jones. 9) Fix use after free in ipv6 SIT driver, from Willem de Bruijn. 10) When computing mergeable buffer sizes, virtio-net fails to take the virtio-net header into account. From Michael Dalton. 11) Fix seqlock deadlock in ip4_datagram_connect() wrt. statistic bumping, this one has been with us for a while. From Eric Dumazet. 12) Fix NULL deref in the new TIPC fragmentation handling, from Erik Hugne. 13) 6lowpan bit used for traffic classification was wrong, from Jukka Rissanen. 14) macvlan has the same issue as normal vlans did wrt. propagating LRO disabling down to the real device, fix it the same way. From Michal Kubecek. 15) CPSW driver needs to soft reset all slaves during suspend, from Daniel Mack. 16) Fix small frame pacing in FQ packet scheduler, from Eric Dumazet. 17) The xen-netfront RX buffer refill timer isn't properly scheduled on partial RX allocation success, from Ma JieYue. 18) When ipv6 ping protocol support was added, the AF_INET6 protocol initialization cleanup path on failure was borked a little. Fix from Vlad Yasevich. 19) If a socket disconnects during a read/recvmsg/recvfrom/etc that blocks we can do the wrong thing with the msg_name we write back to userspace. From Hannes Frederic Sowa. There is another fix in the works from Hannes which will prevent future problems of this nature. 20) Fix route leak in VTI tunnel transmit, from Fan Du. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (106 commits) genetlink: make multicast groups const, prevent abuse genetlink: pass family to functions using groups genetlink: add and use genl_set_err() genetlink: remove family pointer from genl_multicast_group genetlink: remove genl_unregister_mc_group() hsr: don't call genl_unregister_mc_group() quota/genetlink: use proper genetlink multicast APIs drop_monitor/genetlink: use proper genetlink multicast APIs genetlink: only pass array to genl_register_family_with_ops() tcp: don't update snd_nxt, when a socket is switched from repair mode atm: idt77252: fix dev refcnt leak xfrm: Release dst if this dst is improper for vti tunnel netlink: fix documentation typo in netlink_set_err() be2net: Delete secondary unicast MAC addresses during be_close be2net: Fix unconditional enabling of Rx interface options net, virtio_net: replace the magic value ping: prevent NULL pointer dereference on write to msg_name bnx2x: Prevent "timeout waiting for state X" bnx2x: prevent CFC attention bnx2x: Prevent panic during DMAE timeout ...
2013-11-19genetlink: make multicast groups const, prevent abuseJohannes Berg1-16/+8
Register generic netlink multicast groups as an array with the family and give them contiguous group IDs. Then instead of passing the global group ID to the various functions that send messages, pass the ID relative to the family - for most families that's just 0 because the only have one group. This avoids the list_head and ID in each group, adding a new field for the mcast group ID offset to the family. At the same time, this allows us to prevent abusing groups again like the quota and dropmon code did, since we can now check that a family only uses a group it owns. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-19genetlink: pass family to functions using groupsJohannes Berg1-1/+2
This doesn't really change anything, but prepares for the next patch that will change the APIs to pass the group ID within the family, rather than the global group ID. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14Merge branch 'next' of ↵Linus Torvalds4-12/+38
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: "This time we only have a few changes as there are no soc thermal changes from Eduardo. The only big change is the introduction of TMON, a tool to help visualize, tune, and test the thermal subsystem. The rest is mostly cleanups and fixes all over. Specifics: - introduce TMON, a tool base on thermal sysfs I/F. It can be used to visualize, tune and test the thermal subsystem. - fix a zone/cooling device binding problem, when both thermal zone bind parameters and .bind() callback are available" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: tools/thermal: Introduce tmon, a tool for thermal subsystem thermal: Fix binding problem when there is thermal zone params thermal: cpu_cooling: fix return value check in cpufreq_cooling_register() Thermal: Check for validity before doing kfree thermal/intel_powerclamp: Add newer CPU models Thermal: Tidy up error handling in powerclamp_init thermal: Kconfig: cosmetic fixes ACPI/thermal : Remove zone disabled warning typo in drivers/thermal/Kconfig: lpatform instead of platform
2013-11-07Merge branches 'intel_powerclamp', 'tmon' and 'misc' of .git into nextZhang Rui11-30/+72
2013-11-06thermal: Fix binding problem when there is thermal zone paramsNi Wade1-3/+4
The thermal zone params can be used to set governor to specific thermal governor for thermal zone device. But if the thermal zone params has only governor name without thermal bind params, then the thermal zone device will not be binding to cooling device. Because tz->ops->bind operator is not invoked in bind_tz() and bind_cdev() when there is thermal zone params. Signed-off-by: Wei Ni <wni@nvidia.com> Signed-off-by: Jinyoung Park <jinyoungp@nvidia.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-11-06thermal: cpu_cooling: fix return value check in cpufreq_cooling_register()Wei Yongjun1-2/+2
In case of error, the function thermal_cooling_device_register() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-10-28Merge branch 'pm-cpufreq'Rafael J. Wysocki1-1/+0
* pm-cpufreq: (167 commits) cpufreq: create per policy rwsem instead of per CPU cpu_policy_rwsem intel_pstate: Add Baytrail support intel_pstate: Refactor driver to support CPUs with different MSR layouts cpufreq: Implement light weight ->target_index() routine PM / OPP: rename header to linux/pm_opp.h PM / OPP: rename data structures to dev_pm equivalents PM / OPP: rename functions to dev_pm_opp* cpufreq / governor: Remove fossil comment cpufreq: exynos4210: Use the common clock framework to set APLL clock rate cpufreq: exynos4x12: Use the common clock framework to set APLL clock rate cpufreq: Detect spurious invocations of update_policy_cpu() cpufreq: pmac64: enable cpufreq on iMac G5 (iSight) model cpufreq: pmac64: provide cpufreq transition latency for older G5 models cpufreq: pmac64: speed up frequency switch cpufreq: highbank-cpufreq: Enable Midway/ECX-2000 exynos-cpufreq: fix false return check from "regulator_set_voltage" speedstep-centrino: Remove unnecessary braces acpi-cpufreq: Add comment under ACPI_ADR_SPACE_SYSTEM_IO case cpufreq: arm-big-little: use clk_get instead of clk_get_sys cpufreq: exynos: Show a list of available frequencies ... Conflicts: drivers/devfreq/exynos/exynos5_bus.c
2013-10-21Merge branch 'x86_pkg_temp' of .git into for-rcZhang Rui1-6/+8
2013-10-21Revert "drivers: thermal: parent virtual hwmon with thermal zone"Zhang Rui1-1/+1
Commit b82715fdd4a5407f56853b24d387d484dd9c3b5b introduces a 'device' subdirectory under /sys/class/hwmon/hwmonX/ directory, for the thermal_zone hwmon devices. And this results in different handling by libsensors. The problem is reported and discussed in this thread http://marc.info/?l=linux-pm&m=138229306109596&w=2 This patch reverts commit b82715fdd4a5407f56853b24d387d484dd9c3b5b. Reported-by: Arnaud Ebalard <arno@natisbad.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-10-16cpufreq: remove CONFIG_CPU_FREQ_TABLEViresh Kumar1-1/+0
CONFIG_CPU_FREQ_TABLE will be always enabled when cpufreq framework is used, as cpufreq core depends on it. So, we don't need this CONFIG option anymore as it is not configurable. Remove CONFIG_CPU_FREQ_TABLE and update its users. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-15drivers: thermal: allow ti-soc-thermal run without pcb zoneEduardo Valentin1-0/+1
This patch changes the behavior of TI SoC thermal driver when there is a PCB thermal zone. Instead of reporting an error code when reading from PCB temperature sensor fails, this patch will make the driver attempt to compose the hotspot extrapolation based on bandgap readings only. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-10-15thermal: exynos: Provide initial setting for TMU's test MUX address at ↵Lukasz Majewski4-0/+13
Exynos4412 The commit d0a0ce3e77c795258d47f9163e92d5031d0c5221 ("thermal: exynos: Add missing definations and code cleanup") has removed setting of test MUX address value at TMU configuration setting. This field is not present on Exynos4210 and Exynos5 SoCs. However on Exynos4412 SoC it is required to set this field after reset because without it TMU shows maximal available temperature, which causes immediate platform shutdown. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-10-15thermal: exynos: Provide separate TMU data for Exynos4412Lukasz Majewski4-12/+37
Up till now Exynos5250 and Exynos4412 had the same definitions for TMU data. Following commit changes that, by introducing separate exynos4412_default_tmu_data structure. Since Exynos4412 was chronologically first, the corresponding name for TMU registers and default data was renamed. Additionally, new SOC_ARCH_EXYNOS4412 type has been defined. Moreover, the SOC_ARCH_EXYNOS name has been changed to SOC_ARCH_EXYNOS5250. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-10-15thermal: exynos: Remove check for thermal device pointer at ↵Lukasz Majewski1-2/+0
exynos_report_trigger() The commit 4de0bdaa9677d11406c9becb70c60887c957e1f0 ("thermal: exynos: Add support for instance based register/unregister") broke check for presence of therm_dev at global thermal zone in exynos_report_trigger(). The resulting wrong test prevents thermal_zone_device_update() call, which calls handlers for situation when trip points are passed. Such behavior prevents thermal driver from proper reaction (when TMU interrupt is raised) in a situation when overheating is detected at TMU hardware. It turns out, that after exynos thermal subsystem redesign (at v3.12) this check is not needed, since it is not possible to register thermal zone without valid thermal device. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-10-14Thermal: Check for validity before doing kfreedurgadoss.r@intel.com1-1/+2
The thermal_release function is called whenever any device belonging to 'thermal' class unregisters. This function performs kfree(cdev) without any check. In cases where there are more device registrations other than just 'thermal_zone' and 'cooling_device' this might accidently free memory allocated them silently; and cause memory errors. This patch changes this behavior by doing kfree(cdev) only when the device pointer belongs to a real cdev i.e. cooling_device. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-10-09thermal/intel_powerclamp: Add newer CPU modelsJacob Pan1-0/+5
This will enable intel_powerclamp driver on newer Intel CPUs including some Ivy Bridge and Haswell processors. Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-10-09Thermal: Tidy up error handling in powerclamp_initdurgadoss.r@intel.com1-3/+21
This patch * adds missing kfree() for cpu_clamping_mask * adds return value checking for alloc_percpu() * unregister hotcpu notifier in exit path Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-10-09thermal: Kconfig: cosmetic fixesLuka Perkov1-2/+3
Fix typo, finish sentence and add missing dots. Signed-off-by: Luka Perkov <luka@openwrt.org> CC: Randy Dunlap <rdunlap@infradead.org> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-09-25Thermal: x86_pkg_temp: change spin lockSrinivas Pandruvada1-6/+8
x86_pkg_temp receives thermal notifications via a callback from a therm_throt driver, where thermal interrupts are processed. This callback is pkg_temp_thermal_platform_thermal_notify. Here to avoid multiple interrupts from cores in a package, we disable the source and also set a variable to avoid scheduling delayed work function. This variable is protected via spin_lock_irqsave. On one buggy platform, we still receiving interrupts even if the source is disabled. This can cause deadlock/lockdep warning, when interrupt is generated while under spinlock in work function. Change spin_lock to spin_lock_irqsave and spin_unlock to spin_unlock_irqrestore as the data it is trying to protect can also be modified in a notification call called from interrupt handler. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-09-25typo in drivers/thermal/Kconfig: lpatform instead of platformRegid Ichira1-1/+1
Applied to the HEAD of linux.git, VERSION = 3 PATCHLEVEL = 11 SUBLEVEL = 0 Signed-off-by: Regid Ichira <regid23@nt1.in> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-09-03drivers: thermal: add check when unregistering cpu coolingEduardo Valentin1-1/+5
This patch avoids NULL pointer accesses while unregistering cpu cooling devices, in case a NULL pointer is received. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-09-03thermal: thermal_core: allow binding with limits on bind_paramsEduardo Valentin1-4/+15
When registering a thermal zone device using platform information via bind_params, the thermal framework will always perform the cdev binding using the lowest and highest limits (THERMAL_NO_LIMIT). This patch changes the data structures so that it is possible to inform what are the desired limits for each trip point inside a bind_param. The way the binding is performed is also changed so that it uses the new data structure. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-09-03drivers: thermal: make usage of CONFIG_THERMAL_HWMON optionalEduardo Valentin1-3/+5
When registering a new thermal_device, the thermal framework will always add a hwmon sysfs interface. This patch adds a flag to make this behavior optional. Now when registering a new thermal device, the caller can optionally inform if hwmon interface is desirable. This can be done by means of passing a thermal_zone_params.no_hwmon == true. In order to keep same behavior as of today, all current calls will by default create the hwmon interface. Cc: David Woodhouse <dwmw2@infradead.org> Cc: linux-acpi@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: Zhang Rui <rui.zhang@intel.com> Suggested-by: Wei Ni <wni@nvidia.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-09-03drivers: thermal: parent virtual hwmon with thermal zoneEduardo Valentin1-1/+1
When creating virtual hwmon devices based out of thermal zone devices, the virtual devices won't have parents. This patch changes the code so that the parent of virtual hwmon devices is the thermal zone device that they are based of. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-09-03thermal: hwmon: move hwmon support to single fileEduardo Valentin5-254/+331
In order to improve code organization, this patch moves the hwmon sysfs support to a file named thermal_hwmon. This helps to add extra support for hwmon without scrambling the code. In order to do this move, the hwmon list head is now using its own locking. Before, the list used the global thermal locking. Also, some minor changes in the code were required, as recommended by checkpatch.pl. Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-08-29thermal: exynos: Clean up non-DT remnantsSachin Kamat2-19/+13
Commit 1cd1ecb6 ("thermal: exynos: Remove non DT based support") cleaned up some non-DT code. However, there were few more things needed for complete cleanup to make this driver DT only. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-08-29thermal: exynos: Fix potential NULL pointer dereferenceSachin Kamat1-3/+3
NULL pointer was being dereferenced in its own error message. Changed it to the correct device pointer. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-08-29thermal: exynos: Fix typos in KconfigSachin Kamat1-5/+5
Fixes some trivial typos. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-08-29thermal: ti-soc-thermal: Ensure to compute thermal trendRanganath Krishnan1-1/+5
Workaround to compute thermal trend even when update interval is not set. This patch will ensure to compute the thermal trend when bandgap counter delay is not set. Signed-off-by: Ranganath Krishnan <ranganath@ti.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
2013-08-29thermal: ti-soc-thermal: Set the bandgap mask counter delay valueRanganath Krishnan1-0/+7
Set the bandgap mask counter_delay with the polling_delay value on registering the thermal zone. This patch will ensure to get the correct update interval for computing the thermal trend. Signed-off-by: Ranganath Krishnan <ranganath@ti.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>