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* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-0252-29/+60
| | | | | | | | | | | | | | | | | | | | <linux/sched/signal.h> We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/signal.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-0220-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | <linux/sched/mm.h> We are going to split <linux/sched/mm.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/mm.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. The APIs that are going to be moved first are: mm_alloc() __mmdrop() mmdrop() mmdrop_async_fn() mmdrop_async() mmget_not_zero() mmput() mmput_async() get_task_mm() mm_access() mm_release() Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-023-0/+3
| | | | | | | | | | | | | | | | | | | | <linux/sched/loadavg.h> We are going to split <linux/sched/loadavg.h> out of <linux/sched.h>, which will have to be picked up from a couple of .c files. Create a trivial placeholder <linux/sched/topology.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-0211-0/+11
| | | | | | | | | | | | | | | | | | <uapi/linux/sched/types.h> We are going to move scheduler ABI details to <uapi/linux/sched/types.h>, which will be used from a number of .c files. Create empty placeholder header that maps to <linux/types.h>. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-0218-0/+19
| | | | | | | | | | | | | | | | | | | | <linux/sched/clock.h> We are going to split <linux/sched/clock.h> out of <linux/sched.h>, which will have to be picked up from other headers and .c files. Create a trivial placeholder <linux/sched/clock.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-021-0/+1
| | | | | | | | | | | | | | | | | | | | <linux/sched/idle.h> We are going to split <linux/sched/idle.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/idle.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* sched/core: Remove the tsk_cpus_allowed() wrapperIngo Molnar2017-03-024-6/+6
| | | | | | | | | | | | | | | | | So the original intention of tsk_cpus_allowed() was to 'future-proof' the field - but it's pretty ineffectual at that, because half of the code uses ->cpus_allowed directly ... Also, the wrapper makes the code longer than the original expression! So just get rid of it. This also shrinks <linux/sched.h> a bit. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge tag 'powerpc-4.11-2' of ↵Linus Torvalds2017-03-015-27/+91
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull more powerpc updates from Michael Ellerman: "Highlights include: - an update of the disassembly code used by xmon to the latest versions in binutils. We've received permission from all the authors of the relevant binutils changes to relicense their changes to the relevant files from GPLv3 to GPLv2, for inclusion in Linux. Thanks to Peter Bergner for doing the leg work to get permission from everyone. - addition of the "architected" Power9 CPU table entry, allowing us to boot in Power9 architected mode under a hypervisor. - updates to the Power9 PMU code. - implementation of clear_bit_unlock_is_negative_byte() to optimise unlock_page(). - Freescale updates from Scott: "Highlights include 8xx breakpoints and perf, t1042rdb display support, and board updates." Thanks to: Al Viro, Andrew Donnellan, Aneesh Kumar K.V, Balbir Singh, Douglas Miller, Frédéric Weisbecker, Gavin Shan, Madhavan Srinivasan, Michael Roth, Nathan Fontenot, Naveen N. Rao, Nicholas Piggin, Peter Bergner, Paul E. McKenney, Rashmica Gupta, Russell Currey, Sahil Mehta, Stewart Smith" * tag 'powerpc-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (48 commits) powerpc: Remove leftover cputime_to_nsecs call causing build error powerpc/mm/hash: Always clear UPRT and Host Radix bits when setting up CPU powerpc/optprobes: Fix TOC handling in optprobes trampoline powerpc/pseries: Advertise Hot Plug Event support to firmware cxl: fix nested locking hang during EEH hotplug powerpc/xmon: Dump memory in CPU endian format powerpc/pseries: Revert 'Auto-online hotplugged memory' powerpc/powernv: Make PCI non-optional powerpc/64: Implement clear_bit_unlock_is_negative_byte() powerpc/powernv: Remove unused variable in pnv_pci_sriov_disable() powerpc/kernel: Remove error message in pcibios_setup_phb_resources() powerpc/mm: Fix typo in set_pte_at() pci/hotplug/pnv-php: Disable MSI and PCI device properly pci/hotplug/pnv-php: Disable surprise hotplug capability on conflicts pci/hotplug/pnv-php: Remove WARN_ON() in pnv_php_put_slot() powerpc: Add POWER9 architected mode to cputable powerpc/perf: use is_kernel_addr macro in perf_get_misc_flags() powerpc/perf: Avoid FAB_*_MATCH checks for power9 powerpc/perf: Add restrictions to PMC5 in power9 DD1 powerpc/perf: Use Instruction Counter value ...
| * cxl: fix nested locking hang during EEH hotplugAndrew Donnellan2017-02-214-10/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 14a3ae34bfd0 ("cxl: Prevent read/write to AFU config space while AFU not configured") introduced a rwsem to fix an invalid memory access that occurred when someone attempts to access the config space of an AFU on a vPHB whilst the AFU is deconfigured, such as during EEH recovery. It turns out that it's possible to run into a nested locking issue when EEH recovery fails and a full device hotplug is required. cxl_pci_error_detected() deconfigures the AFU, taking a writer lock on configured_rwsem. When EEH recovery fails, the EEH code calls pci_hp_remove_devices() to remove the device, which in turn calls cxl_remove() -> cxl_pci_remove_afu() -> pci_deconfigure_afu(), which tries to grab the writer lock that's already held. Standard rwsem semantics don't express what we really want to do here and don't allow for nested locking. Fix this by replacing the rwsem with an atomic_t which we can control more finely. Allow the AFU to be locked multiple times so long as there are no readers. Fixes: 14a3ae34bfd0 ("cxl: Prevent read/write to AFU config space while AFU not configured") Cc: stable@vger.kernel.org # v4.9+ Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * pci/hotplug/pnv-php: Disable MSI and PCI device properlyGavin Shan2017-02-171-8/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pnv_php_disable_irq() can be called in two paths: Bailing path in pnv_php_enable_irq() or releasing slot. The MSI (or MSIx) interrupts is disabled unconditionally in pnv_php_disable_irq(). It's wrong because that might be enabled by drivers other than pnv-php. This disables MSI (or MSIx) interrupts and the PCI device only if it was enabled by pnv-php. In the error path of pnv_php_enable_irq(), we rely on the newly added parameter @disable_device. In the path of releasing slot, @pnv_php->irq is checked. Cc: <stable@vger.kernel.org> # v4.9+ Fixes: 360aebd85a4c ("drivers/pci/hotplug: Support surprise hotplug in powernv driver") Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * pci/hotplug/pnv-php: Disable surprise hotplug capability on conflictsGavin Shan2017-02-171-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The root port or PCIe switch downstream port might have been associated with driver other than pnv-php. The MSI or MSIx might also have been enabled by that driver (e.g. pcieport_drv). Attempt to enable MSI incurs below backtrace: PowerPC PowerNV PCI Hotplug Driver version: 0.1 ------------[ cut here ]------------ WARNING: CPU: 19 PID: 1004 at drivers/pci/msi.c:1071 \ __pci_enable_msi_range+0x84/0x4e0 NIP [c000000000665c34] __pci_enable_msi_range+0x84/0x4e0 LR [c000000000665c24] __pci_enable_msi_range+0x74/0x4e0 Call Trace: [c000000384d67600] [c000000000665c24] __pci_enable_msi_range+0x74/0x4e0 [c000000384d676e0] [d00000000aa31b04] pnv_php_register+0x564/0x5a0 [pnv_php] [c000000384d677c0] [d00000000aa31658] pnv_php_register+0xb8/0x5a0 [pnv_php] [c000000384d678a0] [d00000000aa31658] pnv_php_register+0xb8/0x5a0 [pnv_php] [c000000384d67980] [d00000000aa31dfc] pnv_php_init+0x60/0x98 [pnv_php] [c000000384d679f0] [c00000000000cfdc] do_one_initcall+0x6c/0x1d0 [c000000384d67ab0] [c000000000b92354] do_init_module+0x94/0x254 [c000000384d67b40] [c00000000019719c] load_module+0x258c/0x2c60 [c000000384d67d30] [c000000000197bb0] SyS_finit_module+0xf0/0x170 [c000000384d67e30] [c00000000000b184] system_call+0x38/0xe0 This fixes the issue by skipping enabling the surprise hotplug capability if the MSI or MSIx on the PCI slot's upstream port has been enabled by other driver. Cc: <stable@vger.kernel.org> # v4.9+ Fixes: 360aebd85a4c ("drivers/pci/hotplug: Support surprise hotplug in powernv driver") Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Tested-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * pci/hotplug/pnv-php: Remove WARN_ON() in pnv_php_put_slot()Gavin Shan2017-02-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WARN_ON() causes unnecessary backtrace when putting the parent slot, which is likely to be NULL. WARNING: CPU: 2 PID: 1071 at drivers/pci/hotplug/pnv_php.c:85 \ pnv_php_release+0xcc/0x150 [pnv_php] : Call Trace: [c0000003bc007c10] [d00000000ad613c4] pnv_php_release+0x144/0x150 [pnv_php] [c0000003bc007c40] [c0000000006641d8] pci_hp_deregister+0x238/0x330 [c0000003bc007cd0] [d00000000ad61440] pnv_php_unregister_one+0x70/0xa0 [pnv_php] [c0000003bc007d10] [d00000000ad614c0] pnv_php_unregister+0x50/0x80 [pnv_php] [c0000003bc007d40] [d00000000ad61e84] pnv_php_exit+0x50/0xcb4 [pnv_php] [c0000003bc007d70] [c00000000019499c] SyS_delete_module+0x1fc/0x2a0 [c0000003bc007e30] [c00000000000b184] system_call+0x38/0xe0 Cc: <stable@vger.kernel.org> # v4.8+ Fixes: 66725152fb9f ("PCI/hotplug: PowerPC PowerNV PCI hotplug driver") Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Tested-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * drivers/pci/hotplug: Mask PDC interrupt if requiredGavin Shan2017-02-151-5/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We're supporting surprise hotplug on PCI slots behind root port or PCIe switch downstream ports, which don't claim the capability in hardware register (offset: PCIe cap + PCI_EXP_SLTCAP). PEX8718 is one of the examples. For those PCI slots, the PDC (Presence Detection Change) event isn't reliable and the underly (skiboot) firmware has best judgement. This masks the PDC event when skiboot requests by "ibm,slot-broken-pdc" property in PCI slot's device-tree node. Reported-by: Hank Chang <hankmax0000@gmail.com> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Tested-by: Willie Liauw <williel@supermicro.com.tw> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * drivers/pci/hotplug: Fix initial state for empty slotGavin Shan2017-02-151-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In PowerNV PCI hotplug driver, the initial PCI slot's state is set to PNV_PHP_STATE_POPULATED if no PCI devices are connected to the slot. The PCI devices that are hot added to the slot won't be probed and populated because of the check in pnv_php_enable(): /* Check if the slot has been configured */ if (php_slot->state != PNV_PHP_STATE_REGISTERED) return 0; This fixes the issue by leaving the slot in PNV_PHP_STATE_REGISTERED state initially if nothing is connected to the slot. Fixes: 360aebd85a4 ("drivers/pci/hotplug: Support surprise hotplug in powernv driver") Cc: stable@vger.kernel.org #v4.9+ Reported-by: Hank Chang <hankmax0000@gmail.com> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Tested-by: Willie Liauw <williel@supermicro.com.tw> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * drivers/pci/hotplug: Handle presence detection change properlyGavin Shan2017-02-151-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The surprise hotplug is driven by interrupt in PowerNV PCI hotplug driver. In the interrupt handler, pnv_php_interrupt(), we bail when pnv_pci_get_presence_state() returns zero wrongly. It causes the presence change event is always ignored incorrectly. This fixes the issue by bailing on error (non-zero value) returned from pnv_pci_get_presence_state(). Fixes: 360aebd85a4 ("drivers/pci/hotplug: Support surprise hotplug in powernv driver") Cc: stable@vger.kernel.org #v4.9+ Reported-by: Hank Chang <hankmax0000@gmail.com> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Tested-by: Willie Liauw <williel@supermicro.com.tw> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | Input: rmi4 - f30: detect INPUT_PROP_BUTTONPAD from the button countBenjamin Tissoires2017-03-011-2/+3
| | | | | | | | | | | | | | | | | | | | | | INPUT_PROP_BUTTONPAD is currently only set through the platform data. The RMI4 header doc says that this property is there to force the buttonpad property, so we also need to detect it by looking at the exported buttons count. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'next' of ↵Linus Torvalds2017-03-0116-261/+705
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: - add thermal driver for R-Car Gen3 thermal sensors. - add thermal driver for ZTE' zx2967 family thermal sensors. - convert thermal ID allocation from IDR to IDA. - fix a possible NULL dereference in imx thermal driver. - fix a ti-soc-thermal driver dependency issue so that critical thermal control is still available when CPU_THERMAL is not defined. - update binding information for QorIQ thermal driver. - a couple of cleanups in thermal core, intel_powerclamp, exynos, dra752-thermal, mtk-thermal driver. * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: powerpc/mpc85xx: Update TMU device tree node for T1023/T1024 powerpc/mpc85xx: Update TMU device tree node for T1040/T1042 dt-bindings: Update QorIQ TMU thermal bindings thermal: mtk_thermal: Staticise a number of data variables thermal: arm: dra752: Remove all TSHUT related definitions thermal: arm: dra752: Remove TSHUT configuration thermal: ti-soc-thermal: Remove CPU_THERMAL Dependency from TI_THERMAL thermal: imx: Fix possible NULL dereference. thermal: exynos: Remove parsing unused samsung,tmu_cal_mode property thermal: zx2967: add thermal driver for ZTE's zx2967 family thermal: use cpumask_var_t for on-stack cpu masks dt: bindings: add documentation for zx2967 family thermal sensor thermal/intel_powerclamp: Remove set-but-not-used variables thermal: rcar_gen3_thermal: Add R-Car Gen3 thermal driver thermal: rcar_gen3_thermal: Document the R-Car Gen3 thermal: convert devfreq_cooling to use an IDA thermal: convert cpu_cooling to use an IDA thermal: convert clock cooling to use an IDA thermal core: convert ID allocation to IDA
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| *---. \ Merge branches 'thermal-core', 'thermal-soc', 'thermal-intel' and ↵Zhang Rui2017-02-2216-248/+679
| |\ \ \ \ | | | | | | | | | | | | | | | | | | 'ida-conversion' into next
| | | | * | thermal: convert devfreq_cooling to use an IDAMatthew Wilcox2017-01-041-44/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | thermal devfreq cooling does not use the ability to look up pointers by ID, so convert it from using an IDR to the more space-efficient IDA. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
| | | | * | thermal: convert cpu_cooling to use an IDAMatthew Wilcox2017-01-041-52/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | thermal cpu cooling does not use the ability to look up pointers by ID, so convert it from using an IDR to the more space-efficient IDA. The cooling_cpufreq_lock was being used to protect cpufreq_dev_count as well as the IDR. Rather than keep the mutex to protect a single integer, I expanded the scope of cooling_list_lock to also cover cpufreq_dev_count. We could also convert cpufreq_dev_count into an atomic. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
| | | | * | thermal: convert clock cooling to use an IDAMatthew Wilcox2017-01-041-42/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | thermal clock cooling does not use the ability to look up pointers by ID, so convert it from using an IDR to the more space-efficient IDA. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
| | | | * | thermal core: convert ID allocation to IDAMatthew Wilcox2017-01-041-49/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The thermal core does not use the ability to look up pointers by ID, so convert it from using an IDR to the more space-efficient IDA. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
| | | * | | thermal/intel_powerclamp: Remove set-but-not-used variablesAugusto Mecking Caringi2017-02-071-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In poll_pkg_cstate() function, the variables jiffies_last and jiffies_now are set but never used. This has been detected by building the driver with W=1: drivers/thermal/intel_powerclamp.c: In function ‘poll_pkg_cstate’: drivers/thermal/intel_powerclamp.c:464:23: warning: variable ‘jiffies_last’ set but not used [-Wunused-but-set-variable] static unsigned long jiffies_last; ^ Signed-off-by: Augusto Mecking Caringi <augustocaringi@gmail.com> Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
| | * | | | Merge branch 'linus' of ↵Zhang Rui2017-02-2111-57/+625
| | |\ \ \ \ | | | |/ / / | | |/| | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into thermal-soc
| | | * | | thermal: mtk_thermal: Staticise a number of data variablesVivek Gautam2017-02-191-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sparse throws following warnings: drivers/thermal/mtk_thermal.c:186:11: warning: symbol 'mt8173_bank_data' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:193:11: warning: symbol 'mt8173_msr' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:197:11: warning: symbol 'mt8173_adcpnp' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:201:11: warning: symbol 'mt8173_mux_values' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:204:11: warning: symbol 'mt2701_bank_data' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:208:11: warning: symbol 'mt2701_msr' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:212:11: warning: symbol 'mt2701_adcpnp' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:216:11: warning: symbol 'mt2701_mux_values' was not declared. Should it be static? Make these variables as static to fix these warnings. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| | | * | | thermal: arm: dra752: Remove all TSHUT related definitionsKeerthy2017-02-192-44/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No configuration needs to be done for TSHUT from software. Hence remove all the unnecessary definitions. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| | | * | | thermal: arm: dra752: Remove TSHUT configurationKeerthy2017-02-191-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Technical Reference Manual [1] mandates that software should not be configuring the thermal shutdown thresholds. Hence removing TSHUT_CONFIG. [1] http://www.ti.com/lit/ug/sprui30b/sprui30b.pdf Signed-off-by: Keerthy <j-keerthy@ti.com> Reported-by: Ravikumar Kattekola <rk@ti.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| | | * | | thermal: ti-soc-thermal: Remove CPU_THERMAL Dependency from TI_THERMALKeerthy2017-02-191-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently when CPU_THERMAL is not defined the thermal sensors are not even exposed consequently no cooling is possible. CPU_THERMAL eventually depends on CPUFREQ. CPPUFREQ is not the only cooling for CPU. The thermal shutdown for critical temperatures is another cooling solution which will currently not get enabled if CPU_THERMAL is not defined. Remove this dependency so as to have the last level of thermal protection working even without CPUFREQ defined. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| | | * | | thermal: imx: Fix possible NULL dereference.Shailendra Verma2017-02-191-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| | | * | | thermal: exynos: Remove parsing unused samsung,tmu_cal_mode propertyKrzysztof Kozlowski2017-02-192-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The property samsung,tmu_cal_mode is not used and not used. We can safely remove it. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| | | * | | thermal: zx2967: add thermal driver for ZTE's zx2967 familyBaoyou Xie2017-02-193-0/+267
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds thermal driver for ZTE's zx2967 family. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| | | * | | thermal: rcar_gen3_thermal: Add R-Car Gen3 thermal driverWolfram Sang2017-01-203-0/+345
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for R-Car Gen3 thermal sensors. Polling only for now, interrupts will be added incrementally. Same goes for reading fuses. This is documented already, but no hardware available for now. Signed-off-by: Hien Dang <hien.dang.eb@renesas.com> Signed-off-by: Thao Nguyen <thao.nguyen.yb@rvc.renesas.com> Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> [Niklas: document and rework temperature calculation] Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
| * | | | | thermal: use cpumask_var_t for on-stack cpu masksArnd Bergmann2017-02-101-13/+26
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Putting a bare cpumask structure on the stack produces a warning on large SMP configurations: drivers/thermal/cpu_cooling.c: In function 'cpufreq_state2power': drivers/thermal/cpu_cooling.c:644:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] drivers/thermal/cpu_cooling.c: In function '__cpufreq_cooling_register': drivers/thermal/cpu_cooling.c:898:1: warning: the frame size of 1104 bytes is larger than 1024 bytes [-Wframe-larger-than=] The recommended workaround is to use cpumask_var_t, which behaves just like a normal cpu mask in most cases, but turns into a dynamic allocation when CONFIG_CPUMASK_OFFSTACK is set. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
* | | | | Merge tag 'pwm/for-4.11-rc1' of ↵Linus Torvalds2017-03-0126-289/+462
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "This set contains mostly fixes to existing drivers as well as cleanup of code that's not been in active use for a while" * tag 'pwm/for-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (27 commits) acpi: lpss: call pwm_add_table() for BSW PWM device pwm: Try to load modules during pwm_get() pwm: Don't hold pwm_lookup_lock longer than necessary pwm: Make the PWM_POLARITY flag in DTB optional pwm: Print error messages with pr_err() instead of pr_debug() pwm: imx: Add polarity inversion support to i.MX's PWMv2 pwm: imx: doc: Update imx-pwm.txt documentation entry pwm: imx: Remove redundant i.MX PWMv2 code pwm: imx: Provide atomic PWM support for i.MX PWMv2 pwm: imx: Move PWMv2 wait for fifo slot code to a separate function pwm: imx: Move PWMv2 software reset code to a separate function pwm: imx: Rewrite v1 code to facilitate switch to atomic PWM pwm: imx: Add separate set of PWM ops for v1 and v2 pwm: imx: Remove ipg clock and enable per clock when required pwm: lpss: Add Intel Gemini Lake PCI ID pwm: lpss: Do not export board infos for different PWM types pwm: lpss: Avoid reconfiguring while UPDATE bit is still enabled pwm: lpss: Switch to new atomic API pwm: lpss: Allow duty cycle to be 0 pwm: lpss: Avoid potential overflow of base_unit ...
| * \ \ \ \ Merge branch 'for-4.11/drivers' into for-nextThierry Reding2017-02-1010-227/+408
| |\ \ \ \ \
| | * | | | | pwm: imx: Add polarity inversion support to i.MX's PWMv2Lukasz Majewski2017-01-301-5/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch the polarity settings for i.MX's PWMv2 is now supported on top of atomic PWM setting Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: imx: Remove redundant i.MX PWMv2 codeLukasz Majewski2017-01-301-127/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code providing functionality surpassed by the atomic PWM is not needed anymore and hence can be removed. Suggested-by: Stefan Agner <stefan@agner.ch> Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: imx: Provide atomic PWM support for i.MX PWMv2Lukasz Majewski2017-01-301-0/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit provides apply() callback implementation for i.MX's PWMv2. Suggested-by: Stefan Agner <stefan@agner.ch> Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: imx: Move PWMv2 wait for fifo slot code to a separate functionLukasz Majewski2017-01-301-18/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code, which waits for fifo slot, has been extracted from imx_pwm_config_v2 function and moved to new one - imx_pwm_wait_fifo_slot(). This change reduces the overall size of imx_pwm_config_v2() and prepares it for atomic PWM operation. Suggested-by: Stefan Agner <stefan@agner.ch> Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: imx: Move PWMv2 software reset code to a separate functionLukasz Majewski2017-01-301-10/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The software reset code has been extracted from imx_pwm_config_v2 function and moved to new one - imx_pwm_sw_reset(). This change reduces the overall size of imx_pwm_config_v2() and prepares it for atomic PWM operation. Suggested-by: Stefan Agner <stefan@agner.ch> Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: imx: Rewrite v1 code to facilitate switch to atomic PWMLukasz Majewski2017-01-301-10/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code has been rewritten to remove "generic" calls to imx_pwm_{enable|disable|config}. Such approach would facilitate switch to atomic PWM (a.k.a ->apply()) implementation. Suggested-by: Stefan Agner <stefan@agner.ch> Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: imx: Add separate set of PWM ops for v1 and v2Lukasz Majewski2017-01-301-3/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch provides separate set of PWM operations utilized by i.MX's v1 and v2 of the PWM hardware. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Acked-by: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: imx: Remove ipg clock and enable per clock when requiredSascha Hauer2017-01-301-10/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The use of the ipg clock was introduced with commit 7b27c160c681 ("pwm: i.MX: fix clock lookup"). In the commit message it was claimed that the ipg clock is enabled for register accesses. This is true for the ->config() callback, but not for the ->set_enable() callback. Given that the ipg clock is not consistently enabled for all register accesses we can assume that either it is not required at all or that the current code does not work. Remove the ipg clock code for now so that it's no longer in the way of refactoring the driver. On the other hand, the i.MX 7 IP requires the peripheral clock to be enabled before accessing its registers. Since ->config() can be called when the PWM is disabled (in which case, the peripheral clock is also disabled), we need to surround the imx->config() with clk_prepare_enable(per_clk)/clk_disable_unprepare(per_clk) calls. Note that the driver was working fine for the i.MX 7 IP so far because the ipg and peripheral clock use the same hardware clock gate, which guaranteed peripheral clock activation even when ->config() was called when the PWM was disabled. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Stefan Agner <stefan@agner.ch> Tested-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: lpss: Add Intel Gemini Lake PCI IDMika Westerberg2017-01-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel Gemini Lake PWM is pretty much same as used in Intel Broxton. Add this new PCI ID to the list of supported devices. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: lpss: Do not export board infos for different PWM typesAndy Shevchenko2017-01-304-28/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PWM LPSS probe drivers just pass a pointer to the exported board info structures to pwm_lpss_probe() based on device PCI or ACPI ID. In order to remove the knowledge of specific devices from library part of the driver and reduce noise in exported namespace just duplicate the board info structures and stop exporting them. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: lpss: Avoid reconfiguring while UPDATE bit is still enabledIlkka Koskinen2017-01-301-9/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PWM Configuration register has SW_UPDATE bit that is set when a new configuration is written to the register. The bit is automatically cleared at the start of the next output cycle by the IP block. If one writes a new configuration to the register while it still has the bit enabled, PWM may freeze. That is, while one can still write to the register, it won't have an effect. Thus, we try to sleep long enough that the bit gets cleared and make sure the bit is not enabled while we update the configuration. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Tested-by: Richard Griffiths <richard.a.griffiths@intel.com> Signed-off-by: Ilkka Koskinen <ilkka.koskinen@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: lpss: Switch to new atomic APIAndy Shevchenko2017-01-301-35/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of doing things separately, which is not so reliable on some platforms, switch the driver to use new atomic API, i.e. ->apply() callback. The change has been tested on Intel platforms such as Broxton, BayTrail, and Merrifield. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: lpss: Allow duty cycle to be 0Andy Shevchenko2017-01-301-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A duty cycle is represented by values [0..<period>] which reflects [0%..100%]. 0% of the duty cycle means always off (logical "0") on output. Allow this in the driver. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: lpss: Avoid potential overflow of base_unitAndy Shevchenko2017-01-301-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The resolution of base_unit is derived from base_unit_bits and thus must be equal to (2^base_unit_bits - 1). Otherwise frequency and therefore base_unit might potentially overflow. Prevent the above by substracting 1 in all cases where base_unit_bits or derivative is used. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| | * | | | | pwm: pca9685: Fix period change with same duty cycleClemens Gruber2017-01-201-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When first implementing support for changing the output frequency, an optimization was added to continue the PWM after changing the prescaler without having to reprogram the ON and OFF registers for the duty cycle, in case the duty cycle stayed the same. This was flawed, because we compared the absolute value of the duty cycle in nanoseconds instead of the ratio to the period. Fix the problem by removing the shortcut. Fixes: 01ec8472009c9 ("pwm-pca9685: Support changing the output frequency") Cc: <stable@vger.kernel.org> # v4.3+ Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-07 13:20:25 +0100