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2015-01-28ata: pata_platform: fix owner module reference mismatch for scsi hostAkinobu Mita3-6/+17
The owner module reference of the pata_of_platform's scsi_host is initialized to pata_platform's one, because pata_of_platform driver use a scsi_host_template defined in pata_platform. So this drivers can be unloaded even if the scsi device is being accessed. This fixes it by propagating the scsi_host_template to pata_of_platform driver. The scsi_host_template is passed through a new argument of __pata_platform_probe(). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: linux-ide@vger.kernel.org Cc: linux-scsi@vger.kernel.org
2015-01-28ata: ahci_platform: fix owner module reference mismatch for scsi hostAkinobu Mita12-23/+89
The owner module reference of the ahci platform's scsi_host is initialized to libahci_platform's one, because these drivers use a scsi_host_template defined in libahci_platform. So these drivers can be unloaded even if the scsi device is being accessed. This fixes it by pushing the scsi_host_template from libahci_platform to all leaf drivers. The scsi_host_template is passed through a new argument of ahci_platform_init_host(). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: linux-ide@vger.kernel.org Cc: linux-scsi@vger.kernel.org
2015-01-27pata_pdc2027x: Use 64-bit timekeepingTina Ruchandani1-5/+5
Function pdc_detect_pll_input_clock uses 'struct timeval' to measure start and end times, used to compute the pll_clock value. 'struct timeval' on 32-bit systems will have its tv_sec field overflow in year 2038 and beyond. This patch uses 'ktime_t' (which uses 64 bits for seconds) for start and end times instead. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-21ata: libahci: Fix devres cleanup on failureThierry Reding1-1/+2
Commit c7d7ddee7e24 ("ata: libahci: Allow using multiple regulators") releases regulators during ahci_platform_put_resources(). That doesn't work because the function is run as part of the devres machinery. Such resources are torn down in reverse order. Since the array that holds pointers to the regulators is allocated using devres after the device context to which ahci_platform_put_resources() is attached, the memory will be freed before calling ahci_platform_put_resources() and thereby causing a use-after-free error. This commit fixes this by using regular allocations for the array. The memory can then be freed after the regulators have been released. This conserves the advantages of using the managed API. Reported-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-19ata: libahci: Allow using multiple regulatorsGregory CLEMENT4-75/+173
The current implementation of the libahci allows using multiple PHYs but not multiple regulators. This patch adds the support of multiple regulators. Until now it was mandatory to have a PHY under a subnode, now a port subnode can contain either a regulator or a PHY (or both). In order to be able to asociate a port with a regulator the port are now a platform device in the device tree case. There was only one driver which used directly the regulator field of the ahci_host_priv structure. To preserve the bisectability the change in the ahci_imx driver was done in the same patch. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-19Documentation: bindings: Add the regulator property to the sub-nodes AHCI bindingsGregory CLEMENT1-3/+6
It is now possible to use a regulator property for each port of the AHCI controller. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-19ata: libahci: Clean-up the ahci_platform_en/disable_phys functionsGregory CLEMENT1-6/+0
The phy_ functions handle the NULL pointer case, so there is no need to skip them if there is a NULL pointer. Moreover, after the error label there is already no check on the pointer. This patch removes the unnecessary tests and brings some consistency. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-19sata_rcar: extend PM methodsMikhail Ulyanov1-2/+23
In order to make it possible to restore from hibernation not only in Linux but also in e.g. U-Boot, we have to extend sata_rcar_{suspend|resume}() to {freeze| thaw}() PM methods and implement the restore() PM method. Signed-off-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com> [Sergei: killed unused variable, changed the order of initializers, modified copyrights, renamed, modified changelog.] Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-12sata_dwc_460ex: disable compilation on ARM and ARM64Andy Shevchenko1-1/+1
For now disable the compilation of the driver on ARM and ARM64. In the future we will fix the DMA handling in that driver and re-enable compilation back. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-11ata: libata-core: Remove unused functionRickard Strandqvist2-28/+0
Remove the function ata_do_simple_cmd() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-08sata_dwc_460ex: convert to devm_kzalloc in ->probe()Andy Shevchenko1-18/+6
The patch converts ->probe() to use devm_kzalloc that simplifies error path. Note that ata_host_alloc_pinfo() has been using device resources already. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-08sata_dwc_460ex: remove extra messageAndy Shevchenko1-6/+2
There is no need to print a message about failure of memory allocation. The caller will get an error code and may print the same. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-08sata_dwc_460ex: use np local variable in ->probe()Andy Shevchenko1-4/+4
This patch fixes the style of usage of a node pointer. There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-08sata_dwc_460ex: fix most of the sparse warningsAndy Shevchenko1-34/+33
There are a lot sparse warnings. Most of them related to __iomem keyword which sometimes absent when it's needed and vise versa. The patch fixes most of the warnings. While at it, remove the redundant sata_dwc_sht.can_queue initialization to ATA_DEF_QUEUE. tj: Added description about ATA_DEF_QUEUE init removal. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-08sata_dwc_460ex: enable COMPILE_TEST for the driverAndy Shevchenko2-1/+13
To test how the driver could be compiled in the non-native environment let's enable COMPILE_TEST for it. It would be useful for further work. This patch enables COMPILE_TEST for the driver and fixes compilation errors on at least x86 platforms. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-08sata_dwc_460ex: remove redundant dev_set_drvdataAndy Shevchenko1-1/+0
Driver core sets it to NULL upon probe failure or release. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-07sata_dwc_460ex: fix resource leak on error pathAndy Shevchenko1-14/+12
DMA mapped IO should be unmapped on the error path in probe() and unconditionally on remove(). Fixes: 62936009f35a ([libata] Add 460EX on-chip SATA driver, sata_dwc_460ex) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-07libata: Remove FIXME comment in atapi_eh_request_senseNicholas Krause1-1/+0
Remove the FIXME comment in atapi_eh_request_sense () asking whether memset of sense buffer is necessary. The buffer may be partially or fully filled by the device. We want it to be cleared. Signed-off-by: Nicholas Krause <xerofoify@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-06ata: add MAINTAINERS entry for libata PATA driversBartlomiej Zolnierkiewicz1-0/+9
Add myself as the primary maintainer for libata PATA drivers. The merging process would remain unchanged with patches going through Tejun's tree. Cc: Alan Cox <alan@linux.intel.com> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-06libata: clean up MAINTAINERS entriesTejun Heo1-32/+34
Make all libata entries start with LIBATA and collect them in one place. Driver specfic ones have the second SATA or PATA prefix. Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-06ahci_xgene: Implement the workaround to support PMP enumeration and discovery.Suman Tripathi1-5/+128
Due to H/W errata, the controller is unable to save the PMP field fetched from command header before sending the H2D FIS. When the device returns the PMP port field in the D2H FIS, there is a mismatch and results in command completion failure. The workaround is to write the pmp value to PxFBS.DEV field before issuing any command to PMP. Signed-off-by: Suman Tripathi <stripathi@apm.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-06ahci_xgene: Implement the xgene_ahci_poll_reg_val to support PMP.Suman Tripathi1-2/+54
This patch implements the function xgene_ahci_poll_reg_val to poll PxCI for multiple IDENTIFY DEVICE commands to finish before restarting the DMA engine. Signed-off-by: Suman Tripathi <stripathi@apm.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-05libata: export ata_get_cmd_descript()Andy Shevchenko1-0/+1
The driver sata_dwc_460ex is using this symbol. To build it as a module we have to have the symbol exported. This patch adds EXPORT_SYMBOL_GPL() macro for that. tj: Updated to use EXPORT_SYMBOL_GPL() instead of EXPORT_SYMBOL() as the only known user is an in-tree driver. Suggested by Sergei. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
2015-01-05ahci_xgene: Fix the DMA state machine lockup for the ATA_CMD_PACKET PIO mode command.Suman Tripathi1-5/+7
This patch addresses the issue with ATA_CMD_PACKET pio mode command for enumeration and device detection with ATAPI devices. The X-Gene AHCI controller has an errata in which it cannot clear the BSY bit after the PIO setup FIS. The dma state machine enters CMFatalErrorUpdate state and locks up. Signed-off-by: Suman Tripathi <stripathi@apm.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-01-05ahci_xgene: Fix the endianess issue in APM X-Gene SoC AHCI SATA controller driver.Suman Tripathi1-1/+1
This patch fixes the big endian mode issue with function xgene_ahci_read_id. Signed-off-by: Suman Tripathi <stripathi@apm.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-12-25libata: s/ata_id_removeable()/ata_id_removable()/Nicholas Krause2-3/+3
Changes the spelling typos of removeable to removable where ata_id_removeable is defined in ata.h and called in libata-scsi.c respectively. Signed-off-by: Nicholas Krause <xerofoify@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-12-20Linux 3.19-rc1Linus Torvalds1-2/+2
2014-12-20i2c: sh_mobile: fix uninitialized var when debug is enabledWolfram Sang1-0/+1
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-12-20CRISv32: Remove last remnants of ETRAX_SPI_MMC_BOARDJesper Nilsson1-7/+0
There are no users of this symbol left. Reported-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: ETRAXFS: Fix recursive spinlockJesper Nilsson2-71/+83
Move pinmux alloc/dealloc code into functions that don't take the spinlock so we can use from code that has the spinlock already. CRISv32 has no working SMP, so spinlocks becomes a NOP, so deadlock was never seen. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Select MTDRAM for axisflashmapJesper Nilsson1-0/+1
Fixes compile error on allmodconfig. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Implement early consoleJesper Nilsson1-26/+56
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Use KALLSYMs if available in call stack dumpJesper Nilsson1-27/+34
Also, print kernel version on oops. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Fix declaration mismatchJesper Nilsson1-1/+0
Drop i2c_init from this header, it was declared non-static here, but static in the C-file. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Rewrite of synchronous serial port driverJesper Nilsson1-639/+791
Make driver possible to load as a module and try to handle locking better. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Update init memory handlingJesper Nilsson1-5/+33
- Add free_initrd_mem as found by Guenter Roeck <linux@roeck-us.net> - Add free_init_pages - Export empty_zero_page symbol Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Better handling of watchdog biteJesper Nilsson1-11/+17
Don't enter watchdog handling if we're already in watchdog handling. Also some minor formatting tweaks. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Export missing function symbolsJesper Nilsson3-19/+19
strcmp was lost when all other string functions were removed, but we still have an optimized version for this on CRISv32, so any driver built as a module would not have access to this symbol. In a similar manner, we had optimized versions of csum_partial_copy_from_user and __do_clear_user but no exported symbols for them, breaking bunch of other drivers when built as a module. At the same time, move EXPORT_SYMBOL(__copy_user) and EXPORT_SYMBOL(__copy_user_zeroing) C-files so it's located together with the function definition. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Export ioremap_nocacheJesper Nilsson1-1/+2
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Fix headers_installSam Ravnborg3-8/+2
Fix headers_install by adjusting the path to arch files. And delete unused Kbuild file. Drop special handling of cris in the headers.sh script as a nice side-effect. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Add missing include for mm.hJesper Nilsson1-0/+1
Fixes the following compile error. arch/cris/arch-v32/kernel/time.c: In function 'reset_watchdog': arch/cris/arch-v32/kernel/time.c:121:2: error: implicit declaration of function 'global_page_state' Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-19CRISv32: Drop obsolete file for SPI driverJesper Nilsson1-1/+0
File was already deleted. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-19PM: Eliminate CONFIG_PM_RUNTIMERafael J. Wysocki37-48/+39
Having switched over all of the users of CONFIG_PM_RUNTIME to use CONFIG_PM directly, turn the latter into a user-selectable option and drop the former entirely from the tree. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Kevin Hilman <khilman@linaro.org>
2014-12-19Update/Remove soon-to-be-dead email addressDave Jones5-10/+8
I'm leaving Red Hat at the end of December 2014, so remove all references to my soon-to-be-dead address. (There are some references left in the tree, that need additional changes, I'll send those through the AGP maintainers). Signed-off-by: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-19macintosh: therm_pm72: delete deprecated driverWolfram Sang4-2615/+0
The new driver is around for more than 2 years now, so the old one can go. Getting rid of it helps the removal of the legacy .attach_adapter callback of the I2C subsystem. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-12-19tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki1-7/+7
The 8250_omap serial driver is a new user of CONFIG_PM_RUNTIME. However, after commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Replace CONFIG_PM_RUNTIME with CONFIG_PM in 8250_omap.c. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-12-19sound: sst-haswell-pcm: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki1-2/+2
The sst-haswell-pcm driver is a new user of CONFIG_PM_RUNTIME. However, after commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Replace CONFIG_PM_RUNTIME with CONFIG_PM in sound/soc/intel/sst-haswell-pcm.c. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Mark Brown <broonie@kernel.org>
2014-12-19spi: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki2-4/+4
A couple of new CONFIG_PM_RUNTIME users have been added recently in the SPI subsystem. However, after commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere under drivers/spi/ (again). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Mark Brown <broonie@kernel.org>
2014-12-19tick/powerclamp: Remove tick_nohz_idle abuseThomas Gleixner2-4/+0
commit 4dbd27711cd9 "tick: export nohz tick idle symbols for module use" was merged via the thermal tree without an explicit ack from the relevant maintainers. The exports are abused by the intel powerclamp driver which implements a fake idle state from a sched FIFO task. This causes all kinds of wreckage in the NOHZ core code which rightfully assumes that tick_nohz_idle_enter/exit() are only called from the idle task itself. Recent changes in the NOHZ core lead to a failure of the powerclamp driver and now people try to hack completely broken and backwards workarounds into the NOHZ core code. This is completely unacceptable and just papers over the real problem. There are way more subtle issues lurking around the corner. The real solution is to fix the powerclamp driver by rewriting it with a sane concept, but that's beyond the scope of this. So the only solution for now is to remove the calls into the core NOHZ code from the powerclamp trainwreck along with the exports. Fixes: d6d71ee4a14a "PM: Introduce Intel PowerClamp Driver" Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Pan Jacob jun <jacob.jun.pan@intel.com> Cc: LKP <lkp@01.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412181110110.17382@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-19[regression] chunk lost from bd9b51Al Viro1-1/+0
Reported-by: Pavel Emelyanov <xemul@parallels.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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