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2014-10-06toshiba_acpi: Adapt kbd_bl_timeout_store to the new kbd typeAzael Avalos
With the introduction of the new keyboard backlight implementation, the *_timeout_store function is broken, as it only supports the first kbd_type. This patch adapts such function for the new kbd_type, as well as converts from using sscanf to kstrtoint. Signed-off-by: Azael Avalos <coproscefalo@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2014-10-07Merge branch 'pm-clk'Rafael J. Wysocki
* pm-clk: PM / clk: Fix crash in clocks management code if !CONFIG_PM_RUNTIME
2014-10-07Merge branch 'pm-devfreq'Rafael J. Wysocki
* pm-devfreq: PM / devfreq: exynos: Enable building exynos PPMU as module PM / devfreq: Export helper functions for drivers PM / devfreq: Remove ARCH_HAS_OPP completely
2014-10-07Merge branch 'pm-avs'Rafael J. Wysocki
* pm-avs: MAINTAINERS: update entry for drivers/power/avs PM / AVS: rockchip-io: add driver handling Rockchip io domains regulator: core: Add REGULATOR_EVENT_PRE_VOLTAGE_CHANGE (and ABORT)
2014-10-07Merge branch 'pm-cpufreq'Rafael J. Wysocki
* pm-cpufreq: cpufreq: cpufreq-dt: fix potential double put of cpu OF node cpufreq: cpu0: rename driver and internals to 'cpufreq_dt' cpufreq: ppc-corenet: remove duplicate update of cpu_data cpufreq: Replace strnicmp with strncasecmp cpufreq: powernv: Set the cpus to nominal frequency during reboot/kexec cpufreq: powernv: Set the pstate of the last hotplugged out cpu in policy->cpus to minimum cpufreq: Allow stop CPU callback to be used by all cpufreq drivers cpufreq: cpu0: Make allocate_resources() work for any CPU cpufreq: cpu0: try regulators with name "cpu-supply" cpufreq: cpu0: Move per-cluster initialization code to ->init() cpufreq: cpu0: use dev_{err|warn|dbg} instead of pr_{err|warn|debug} cpufreq: cpu0: print relevant error when we defer probe cpufreq: cpu0: don't validate clock on clk_put() cpufreq: cpu0: Update Module Author cpufreq: Add support for per-policy driver data
2014-10-07Merge branch 'pm-cpuidle'Rafael J. Wysocki
* pm-cpuidle: drivers: cpuidle: initialize big.LITTLE driver through DT drivers: cpuidle: CPU idle ARM64 driver drivers: cpuidle: implement DT based idle states infrastructure cpuidle: big.LITTLE: add Exynos5800 compatible string cpuidle: Replace strnicmp with strncasecmp arm64: add PSCI CPU_SUSPEND based cpu_suspend support arm64: kernel: introduce cpu_init_idle CPU operation arm64: kernel: refactor the CPU suspend API for retention states Documentation: arm: define DT idle states bindings
2014-10-07Merge branch 'pm-domains'Rafael J. Wysocki
* pm-domains: (32 commits) PM / Domains: Rename cpu_data to cpuidle_data PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h PM / Domains: Remove legacy API for adding devices through DT PM / Domains: Add genpd attach/detach callbacks PM / Domains: add debugfs listing of struct generic_pm_domain-s ACPI / PM: Convert acpi_dev_pm_detach() into a static function ARM: exynos: Move to generic PM domain DT bindings amba: Add support for attach/detach of PM domains spi: core: Convert to dev_pm_domain_attach|detach() mmc: sdio: Convert to dev_pm_domain_attach|detach() i2c: core: Convert to dev_pm_domain_attach|detach() drivercore / platform: Convert to dev_pm_domain_attach|detach() PM / Domains: Add APIs to attach/detach a PM domain for a device PM / Domains: Add generic OF-based PM domain look-up ACPI / PM: Assign the ->detach() callback when attaching the PM domain PM / Domains: Add a detach callback to the struct dev_pm_domain PM / domains: Spelling s/domian/domain/ PM / domains: Keep declaration of dev_power_governors together PM / domains: Remove default_stop_ok() API drivers: sh: Leave disabling of unused PM domains to genpd ...
2014-10-07Merge branch 'acpi-pm'Rafael J. Wysocki
* acpi-pm: ACPI / sleep: Rework the handling of ACPI GPE wakeup from suspend-to-idle PM / sleep: Rename platform suspend/resume functions in suspend.c PM / sleep: Export dpm_suspend_late/noirq() and dpm_resume_early/noirq()
2014-10-07Merge branch 'pm-sleep'Rafael J. Wysocki
* pm-sleep: PM / hibernate: Iterate over set bits instead of PFNs in swsusp_free() PM / sleep: new suspend_resume trace event for console resume PM / sleep: Update test_suspend option documentation PM / sleep: Enhance test_suspend option with repeat capability PM / sleep: Support freeze as test_suspend option PM / sysfs: avoid shadowing variables
2014-10-07Merge branch 'pm-genirq'Rafael J. Wysocki
* pm-genirq: PM / genirq: Document rules related to system suspend and interrupts PCI / PM: Make PCIe PME interrupts wake up from suspend-to-idle x86 / PM: Set IRQCHIP_SKIP_SET_WAKE for IOAPIC IRQ chip objects genirq: Simplify wakeup mechanism genirq: Mark wakeup sources as armed on suspend genirq: Create helper for flow handler entry check genirq: Distangle edge handler entry genirq: Avoid double loop on suspend genirq: Move MASK_ON_SUSPEND handling into suspend_device_irqs() genirq: Make use of pm misfeature accounting genirq: Add sanity checks for PM options on shared interrupt lines genirq: Move suspend/resume logic into irq/pm code PM / sleep: Mechanism for aborting system suspends unconditionally
2014-10-07Merge branches 'acpi-processor', 'acpi-battery', 'acpi-utils' and 'acpi-fan'Rafael J. Wysocki
* acpi-processor: ACPI / processor: use container_of instead of casting first structure member * acpi-battery: ACPI / battery: Replace strnicmp with strncasecmp * acpi-utils: ACPI / utils: Update acpi_check_dsm() comments * acpi-fan: ACPI / fan: printk replacement
2014-10-07ACPI / fan: printk replacementSudip Mukherjee
printk replaced with corresponding dev_err and dev_info fixed one broken user-visible string multiine comment edited for correct commenting style asm/uaccess.h replaced with linux/uaccess.h PREFIX removed Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-10-06r8152: nway reset after setting eeehayeswang
Restart autonegotiation is necessary after setting EEE. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06Merge branches 'for-3.18/always-poll-quirk', 'for-3.18/logitech', ↵Jiri Kosina
'for-3.18/picolcd', 'for-3.18/rmi', 'for-3.18/sony', 'for-3.18/uhid', 'for-3.18/upstream' and 'for-3.18/wacom' into for-linus
2014-10-06bonding: Simplify the xmit function for modes that use xmit_hashMahesh Bandewar
Earlier change to use usable slave array for TLB mode had an additional performance advantage. So extending the same logic to all other modes that use xmit-hash for slave selection (viz 802.3AD, and XOR modes). Also consolidating this with the earlier TLB change. The main idea is to build the usable slaves array in the control path and use that array for slave selection during xmit operation. Measured performance in a setup with a bond of 4x1G NICs with 200 instances of netperf for the modes involved (3ad, xor, tlb) cmd: netperf -t TCP_RR -H <TargetHost> -l 60 -s 5 Mode TPS-Before TPS-After 802.3ad : 468,694 493,101 TLB (lb=0): 392,583 392,965 XOR : 475,696 484,517 Signed-off-by: Mahesh Bandewar <maheshb@google.com> Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06bonding: display xmit_hash_policy for non-dynamic-tlb modeMahesh Bandewar
It's a trivial fix to display xmit_hash_policy for this new TLB mode since it uses transmit-hash-poilicy as part of bonding-master info (/proc/net/bonding/<bonding-interface). Signed-off-by: Mahesh Bandewar <maheshb@google.com> Reviewed-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06mfd: cros_ec: wait for completion of commands that return IN_PROGRESSAndrew Bresticker
When an EC command returns EC_RES_IN_PROGRESS, we need to query the state of the EC until it indicates that it is no longer busy. Do this in cros_ec_cmd_xfer() under the EC's mutex so that other commands (e.g. keyboard, I2C passtru) aren't issued to the EC while it is working on the in-progress command. The 10 milliseconds delay and the number of retries are the values that were used by the flashrom tool when retrying commands. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-10-06i2c: i2c-cros-ec-tunnel: Set retries to 3Derek Basehore
Since the i2c bus can get wedged on the EC sometimes, set the number of retries to 3. Since we un-wedge the bus immediately after the wedge happens, this is the correct fix since only one transfer will fail. Signed-off-by: Derek Basehore <dbasehore@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-10-06mfd: cros_ec: move locking into cros_ec_cmd_xferAndrew Bresticker
Now that there's a central cros_ec_cmd_xfer(), move the locking out of the SPI driver. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-10-06mfd: cros_ec: stop calling ->cmd_xfer() directlyAndrew Bresticker
Instead of having users of the ChromeOS EC call the interface-specific cmd_xfer() callback directly, introduce a central cros_ec_cmd_xfer() to use instead. This will allow us to put all the locking and retry logic in one place instead of duplicating it across the different drivers. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-10-06mfd: cros_ec: Delay for 50ms when we see EC_CMD_REBOOT_ECDoug Anderson
If someone sends a EC_CMD_REBOOT_EC to the EC, the EC will likely be unresponsive for quite a while. Add a delay to the end of the command to prevent random failures of future commands. NOTES: * This could be optimized a bit by simply delaying the next command sent, but EC_CMD_REBOOT_EC is such a rare command that the extra complexity doesn't seem worth it. * This is a bit of an "ugly hack" since the SPI driver is effectively snooping on the communication and making a lot of assumptions. It would be nice to architect in some better solution long term. * This same logic probably needs to be applied to the i2c driver. Signed-off-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-10-06i2c-imx: Disable the clock on probe failureFabio Estevam
In the case of errors during probe, we should disable i2c_imx->clk. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-06i2c: designware: Add support for AMD I2C controllerCarl Peng
Add support for AMD version of the DW I2C host controller. The device is enumerated from ACPI namespace with ACPI ID AMD0010. Because the core driver needs an input source clock, and this is not an Intel LPSS device where clocks are provided through drivers/acpi/acpi_lpss.c, we register the clock ourselves if the clock rate is given in ->driver_data Signed-off-by: Carl Peng <carlpeng008@gmail.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-06i2c: designware: Rework probe() to get clock a bit laterMika Westerberg
In order to be able to create missing clock for AMD (and in future possibly others) we move getting clock for the device a bit later. Also make ACPI/DT configuration in the same place depending on from where the device was enumerated from. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-06i2c: designware: Default to fast mode in case of ACPIMika Westerberg
There is no way in ACPI to tell in which speed the host controller is supposed to run, so we default to fast mode (400KHz). Since this has been the default all the time there should be no functional changes with this change. This is the first step required to refactor the driver probe so that we can supply source clock from ACPI part of the driver to the core. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-06Merge branch 'pci/host-xgene' into nextBjorn Helgaas
* pci/host-xgene: arm64: dts: Add APM X-Gene PCIe device tree nodes PCI: xgene: Add APM X-Gene PCIe driver Conflicts: drivers/pci/host/Kconfig drivers/pci/host/Makefile
2014-10-06Merge branch 'pci/virtualization' into nextBjorn Helgaas
* pci/virtualization: PCI: Add ACS quirk for AMD A88X southbridge devices
2014-10-06AHCI: Do not acquire ata_host::lock from single IRQ handlerAlexander Gordeev
There is no need to acquire ata_host::lock spinlock from hardware context single IRQ interrupt handler since the handler does not access host data that could be altered by concurrent processors. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org
2014-10-06AHCI: Optimize single IRQ interrupt processingAlexander Gordeev
Split interrupt service routine into hardware context handler and threaded context handler. That allows to protect ports with individual locks rather than with a single host-wide lock and move port interrupts handling out of the hardware interrupt context. Testing was done by transferring 8GB on two hard drives in parallel using command 'dd if=/dev/sd{a,b} of=/dev/null'. With lock_stat statistics I measured access times to ata_host::lock spinlock (since interrupt handler code is fully embraced with this lock). The average lock's holdtime decreased eight times while average waittime decreased two times. Both before and after the change the transfer time is the same, while 'perf record -e cycles:k ...' shows 1%-4% CPU time spent in ahci_single_irq_intr() routine before the update and not even sampled/shown ahci_single_irq_intr() after the update. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org
2014-10-06AHCI: Do not read HOST_IRQ_STAT reg in multi-MSI modeAlexander Gordeev
As described in AHCI v1.0 specification chapter 10.6.2.2 "Multiple MSI Based Messages" generation of interrupts is not controlled through the HOST_IRQ_STAT register. Considering MMIO access is expensive remove unnecessary reading and writing of HOST_IRQ_STAT register. Further, serializing access to the host data is no longer needed and the interrupt service routine can avoid competing on the host lock. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Suggested-by: "Jiang, Dave" <dave.jiang@intel.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: "Jiang, Dave" <dave.jiang@intel.com> Cc: linux-ide@vger.kernel.org
2014-10-06AHCI: Make few function names more descriptiveAlexander Gordeev
Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org
2014-10-06AHCI: Move host activation code into ahci_host_activate()Alexander Gordeev
Currently host activation done by calling either function ahci_host_activate() or ata_host_activate(). Consolidate the code by only calling ahci_host_activate() for all AHCI devices. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org
2014-10-06AHCI: Move ahci_host_activate() function to libahci.cAlexander Gordeev
This update is a prerequisite for consolidation of AHCI host activation code within ahci_host_activate() function. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org
2014-10-06AHCI: Pass SCSI host template as arg to ahci_host_activate()Alexander Gordeev
This update is a prerequisite for consolidation of AHCI host activation code within ahci_host_activate() function. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org
2014-10-06mmc: sdhci-acpi: Fix Braswell eMMC timeout clock frequencyAdrian Hunter
Braswell eMMC host controller specifies an incorrect timeout clock frequncy in the capabilities registers. The correct value is 1 MHz. A similar fix was done for sdhci-pci, however in the sdhci-acpi case the HID/UID is not unique so the capabilities register values are matched also. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-10-06mmc: sdhci-acpi: Pass HID and UID to probe_slotAdrian Hunter
Pass HID and UID to probe_slot so extra setup can be done for specific ids. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-10-06mmc: sdhci-acpi: Get UID directly from acpi_deviceAdrian Hunter
UID was made available on acpi_device since commit ccf78040265b ("ACPI: Add _UID support for ACPI devices.") Use it from there instead of reprocessing the ACPI object info. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-10-06xen: remove DEFINE_XENBUS_DRIVER() macroDavid Vrabel
The DEFINE_XENBUS_DRIVER() macro looks a bit weird and causes sparse errors. Replace the uses with standard structure definitions instead. This is similar to pci and usb device registration. Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-10-06xen/xenbus: Remove BUG_ON() when error string trucatedChen Gang
xenbus_va_dev_error() is for printing error, so when error string is too long to be truncated, need not BUG_ON(), still return truncation string is OK. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-10-06xen/xenbus: Correct the comments for xenbus_grant_ring()Chen Gang
A grant reference (which is a positive number) can indicate success, so the original comments need be improved. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-10-06net/mlx4_en: Use the new tx_copybreak to set inline thresholdEric Dumazet
Instead of setting inline threshold using module parameter only on driver load, use set_tunable() to set it dynamically. No need to store the threshold per ring, using instead the netdev global priv->prof->inline_thold Initial value still is set using the module parameter, therefore backward compatability is kept. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: Enable the compiler to make is_inline() inlinedEric Dumazet
Reorganize code to call is_inline() once, so compiler can inline it Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: tx_info->ts_requested was not clearedEric Dumazet
Properly clear tx_info->ts_requested Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: Use local var for skb_headlen(skb)Eric Dumazet
Access skb_headlen() once in tx flow Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: Use local var in tx flow for skb_shinfo(skb)Eric Dumazet
Acces skb_shinfo(skb) once in tx flow. Also, rename @i variable to @i_frag to avoid confusion, as the "goto tx_drop_unmap;" relied on this @i variable. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: mlx4_en_xmit() reads ring->cons once, and ahead of time to ↵Eric Dumazet
avoid stalls Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: Avoid false sharing in mlx4_en_en_process_tx_cq()Eric Dumazet
mlx4_en_process_tx_cq() carefully fetches and writes ring->last_nr_txbb and ring->cons only one time to avoid false sharing Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: Use prefetch in tx pathEric Dumazet
mlx4_en_free_tx_desc() uses a prefetchw(&skb->users) to speed up consume_skb() prefetchw(&ring->tx_queue->dql) to speed up BQL update Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: Avoid a cache line miss in TX completion for single frag skb'sEric Dumazet
Add frag0_dma/frag0_byte_count into mlx4_en_tx_info to avoid a cache line miss in TX completion for frames having one dma element. (We avoid reading back the tx descriptor) Note this could be extended to 2/3 dma elements later, as we have free room in mlx4_en_tx_info Also, mlx4_en_free_tx_desc() no longer accesses skb_shinfo(). We use a new nr_maps fields in mlx4_en_tx_info to avoid 2 or 3 cache misses. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-06net/mlx4_en: tx_info allocated with kmalloc() instead of vmalloc()Eric Dumazet
Try to allocate using kmalloc_node() first, only on failure use vmalloc() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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