Commit Graph

2704 Commits

Author SHA1 Message Date
Linus Torvalds
10d0c9705e DeviceTree updates for 3.13. This is a bit larger pull request than
usual for this cycle with lots of clean-up.
 
 - Cross arch clean-up and consolidation of early DT scanning code.
 - Clean-up and removal of arch prom.h headers. Makes arch specific
   prom.h optional on all but Sparc.
 - Addition of interrupts-extended property for devices connected to
   multiple interrupt controllers.
 - Refactoring of DT interrupt parsing code in preparation for deferred
   probe of interrupts.
 - ARM cpu and cpu topology bindings documentation.
 - Various DT vendor binding documentation updates.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQEcBAABAgAGBQJSgPQ4AAoJEMhvYp4jgsXif28H/1WkrXq5+lCFQZF8nbYdE2h0
 R8PsfiJJmAl6/wFgQTsRel+ScMk2hiP08uTyqf2RLnB1v87gCF7MKVaLOdONfUDi
 huXbcQGWCmZv0tbBIklxJe3+X3FIJch4gnyUvPudD1m8a0R0LxWXH/NhdTSFyB20
 PNjhN/IzoN40X1PSAhfB5ndWnoxXBoehV/IVHVDU42vkPVbVTyGAw5qJzHW8CLyN
 2oGTOalOO4ffQ7dIkBEQfj0mrgGcODToPdDvUQyyGZjYK2FY2sGrjyquir6SDcNa
 Q4gwatHTu0ygXpyphjtQf5tc3ZCejJ/F0s3olOAS1ahKGfe01fehtwPRROQnCK8=
 =GCbY
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DeviceTree updates for 3.13.  This is a bit larger pull request than
  usual for this cycle with lots of clean-up.

   - Cross arch clean-up and consolidation of early DT scanning code.
   - Clean-up and removal of arch prom.h headers.  Makes arch specific
     prom.h optional on all but Sparc.
   - Addition of interrupts-extended property for devices connected to
     multiple interrupt controllers.
   - Refactoring of DT interrupt parsing code in preparation for
     deferred probe of interrupts.
   - ARM cpu and cpu topology bindings documentation.
   - Various DT vendor binding documentation updates"

* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
  powerpc: add missing explicit OF includes for ppc
  dt/irq: add empty of_irq_count for !OF_IRQ
  dt: disable self-tests for !OF_IRQ
  of: irq: Fix interrupt-map entry matching
  MIPS: Netlogic: replace early_init_devtree() call
  of: Add Panasonic Corporation vendor prefix
  of: Add Chunghwa Picture Tubes Ltd. vendor prefix
  of: Add AU Optronics Corporation vendor prefix
  of/irq: Fix potential buffer overflow
  of/irq: Fix bug in interrupt parsing refactor.
  of: set dma_mask to point to coherent_dma_mask
  of: add vendor prefix for PHYTEC Messtechnik GmbH
  DT: sort vendor-prefixes.txt
  of: Add vendor prefix for Cadence
  of: Add empty for_each_available_child_of_node() macro definition
  arm/versatile: Fix versatile irq specifications.
  of/irq: create interrupts-extended property
  microblaze/pci: Drop PowerPC-ism from irq parsing
  of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
  of/irq: Use irq_of_parse_and_map()
  ...
2013-11-12 16:52:17 +09:00
Rob Herring
c11eede69b powerpc: add missing explicit OF includes for ppc
Commit b5b4bb3f6a (of: only include prom.h on sparc) removed implicit
includes of of_*.h headers by powerpc's prom.h. Some components were
missed in initial clean-up patch, so add the necessary includes to fix
powerpc builds.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ide@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
2013-11-11 09:10:50 -06:00
Linus Torvalds
19eddab9d9 Merge branch 'for-3.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "The only interesting bit is ata_eh_qc_retry() update which fixes a
  problem where a SG_IO command may fail across suspend/resume cycle
  without the command actually being at fault.

  Other changes are low level driver specific and fairly low impact"

* 'for-3.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libahci: fix turning on LEDs in ahci_start_port()
  libata: make ata_eh_qc_retry() bump scmd->allowed on bogus failures
  ahci_platform: use dev_info() instead of printk()
  ahci: use dev_info() instead of printk()
  pata_isapnp: Don't use invalid I/O ports
2013-10-22 08:21:34 +01:00
Aaron Lu
b08fc109ce ATA / ACPI: remove power dependent device handling
Previously, we wanted SCSI devices corrsponding to ATA devices to
be runtime resumed when the power resource for those ATA device was
turned on by some other device, so we added the SCSI device to the
dependent device list of the ATA device's ACPI node.  However, this
code has no effect after commit 41863fc (ACPI / power: Drop automaitc
resume of power resource dependent devices) and the mechanism it was
supposed to implement is regarded as a bad idea now, so drop it.

[rjw: Changelog]
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-17 15:38:53 +02:00
Lukasz Dorau
fa070ee6dc libahci: fix turning on LEDs in ahci_start_port()
If EM Transmit bit is busy during init ata_msleep() is called.  It is
wrong - msleep() should be used instead of ata_msleep(), because if EM
Transmit bit is busy for one port, it will be busy for all other ports
too, so using ata_msleep() causes wasting tries for another ports.

The most common scenario looks like that now
(six ports try to transmit a LED meaasege):
- port #0 tries for the 1st time and succeeds
- ports #1-5 try for the 1st time and sleeps
- port #1 tries for the 2nd time and succeeds
- ports #2-5 try for the 2nd time and sleeps
- port #2 tries for the 3rd time and succeeds
- ports #3-5 try for the 3rd time and sleeps
- port #3 tries for the 4th time and succeeds
- ports #4-5 try for the 4th time and sleeps
- port #4 tries for the 5th time and succeeds
- port #5 tries for the 5th time and sleeps

At this moment port #5 wasted all its five tries and failed to
initialize.  Because there are only 5 (EM_MAX_RETRY) tries available
usually only five ports succeed to initialize. The sixth port and next
ones usually will fail.

If msleep() is used instead of ata_msleep() the first port succeeds to
initialize in the first try and next ones usually succeed to
initialize in the second try.

tj: updated comment

Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-10-15 09:39:57 -04:00
Rob Herring
5af5073004 drivers: clean-up prom.h implicit includes
Powerpc is a mess of implicit includes by prom.h. Add the necessary
explicit includes to drivers in preparation of prom.h cleanup.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
2013-10-09 20:04:04 -05:00
Gwendal Grignou
f13e220161 libata: make ata_eh_qc_retry() bump scmd->allowed on bogus failures
libata EH decrements scmd->retries when the command failed for reasons
unrelated to the command itself so that, for example, commands aborted
due to suspend / resume cycle don't get penalized; however,
decrementing scmd->retries isn't enough for ATA passthrough commands.

Without this fix, ATA passthrough commands are not resend to the
drive, and no error is signalled to the caller because:

- allowed retry count is 1
- ata_eh_qc_complete fill the sense data, so result is valid
- sense data is filled with untouched ATA registers.

Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2013-10-07 15:18:25 -04:00
Jingoo Han
0fed4c09dc ahci_platform: use dev_info() instead of printk()
Change "raw" printk() call to dev_info() to provide a better
message to userspace so it can properly identify the device
and not just have to guess.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-10-07 15:17:39 -04:00
Jingoo Han
d2782d96f3 ahci: use dev_info() instead of printk()
Change "raw" printk() call to dev_info() to provide a better
message to userspace so it can properly identify the device
and not just have to guess.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-10-07 15:17:36 -04:00
Ondrej Zary
fc0012ec53 pata_isapnp: Don't use invalid I/O ports
The test for 2nd I/O port validity is broken (reversed): On devices
with no control port, the driver attempts to use invalid port 0,
resulting in logs full of bad_io_access errors.  On devices with
control port, the driver does not use it.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-10-07 15:17:32 -04:00
Mikael Pettersson
743a7ecbe8 update contact information for Mikael Pettersson
My old @it.uu.se email address is going away, so update relevant
files to point to my @gmail.com address instead.  In sata_promise.c
just delete the address, people can get it from MAINTAINERS.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-25 13:27:42 -07:00
Linus Torvalds
357397a141 Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata changes from Tejun Heo:
 "Two interesting changes.

   - libata acpi handling has been restructured so that the association
     between ata devices and ACPI handles are less convoluted.  This
     change shouldn't change visible behavior.

   - Queued TRIM support, which enables sending TRIM to the device
     without draining in-flight RW commands, is added.  Currently only
     enabled for ahci (and likely to stay that way for the foreseeable
     future).

  Other changes are driver-specific updates / fixes"

* 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: bugfix: Remove __le32 in ata_tf_to_fis()
  libata: acpi: Remove ata_dev_acpi_handle stub in libata.h
  libata: Add support for queued DSM TRIM
  libata: Add support for SEND/RECEIVE FPDMA QUEUED
  libata: Add H2D FIS "auxiliary" port flag
  libata: Populate host-to-device FIS "auxiliary" field
  ata: acpi: rework the ata acpi bind support
  sata, highbank: send extra clock cycles in SGPIO patterns
  sata, highbank: set tx_atten override bits
  devicetree: create a separate binding description for sata_highbank
  drivers/ata/sata_rcar.c: simplify use of devm_ioremap_resource
  sata highbank: enable 64-bit DMA mask when using LPAE
  ata: pata_samsung_cf: add missing __iomem annotation
  ata: pata_arasan: Staticize local symbols
  sata_mv: Remove unneeded CONFIG_HAVE_CLK ifdefs
  ata: use dev_get_platdata()
  sata_mv: Remove unneeded forward declaration
  libata: acpi: remove dead code for ata_acpi_(un)bind
  libata: move 'struct ata_taskfile' and friends from ata.h to libata.h
2013-09-03 18:19:53 -07:00
Marc Carino
86a565e61b libata: bugfix: Remove __le32 in ata_tf_to_fis()
The endianness attribute on the 'aux' local variable is wrong, and can
lead to wrong endianness on big-endian machines,

Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-09-03 10:37:41 -04:00
Aaron Lu
03f7b802b8 libata: acpi: Remove ata_dev_acpi_handle stub in libata.h
The ata_dev_acpi_handle is defined in libata-acpi.c and the only
external user is libata-zpodd.c, which is built when CONFIG_ATA_ACPI
is set, so there is no need to make an empty stub function for
ONFIG_ATA_ACPI case in libata.h. It also causes compile errors due to
acpi_handle is not defined when !CONFIG_ACPI. This patch fixes this
problem by removing the empty stub.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-27 14:07:12 -04:00
Rafael J. Wysocki
0ad4c9a984 Merge branch 'acpi-pm'
* acpi-pm:
  ACPI / PM: Add state information to error message in acpi_device_set_power()
  ACPI / PM: Remove redundant power manageable check from acpi_bus_set_power()
  ACPI / PM: Use ACPI_STATE_D3_COLD instead of ACPI_STATE_D3 everywhere
  ACPI / PM: Make messages in acpi_device_set_power() print device names
  ACPI / PM: Only set power states of devices that are power manageable
2013-08-27 01:28:17 +02:00
Marc Carino
87fb6c31b9 libata: Add support for queued DSM TRIM
Some new SSDs support the queued version of the DSM TRIM command.
Let the driver use the new command if supported.

Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-25 09:39:12 -04:00
Marc Carino
ed36911c74 libata: Add support for SEND/RECEIVE FPDMA QUEUED
Add support for the following ATA opcodes, which are present
in SATA 3.1 and T13 ATA ACS-3:

        SEND FPDMA QUEUED
        RECEIVE FPDMA QUEUED

Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-25 09:39:12 -04:00
Marc Carino
40fb59e75a libata: Add H2D FIS "auxiliary" port flag
Add a new port flag, ATA_FLAG_FPDMA_AUX, used to indicate
support for transmission of the H2D FIS 'auxiliary' field.

Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-25 09:39:12 -04:00
Marc Carino
8be5ad9acb libata: Populate host-to-device FIS "auxiliary" field
SATA 3.1 added an "auxiliary" field to the host-to-device FIS.
Populate the host-to-device FIS with the new field via the
taskfile struct.

Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-25 09:39:11 -04:00
Aaron Lu
f1bc1e4c44 ata: acpi: rework the ata acpi bind support
Binding ACPI handle to SCSI device has several drawbacks, namely:
1 During ATA device initialization time, ACPI handle will be needed
  while SCSI devices are not created yet. So each time ACPI handle is
  needed, instead of retrieving the handle by ACPI_HANDLE macro,
  a namespace scan is performed to find the handle for the corresponding
  ATA device. This is inefficient, and also expose a restriction on
  calling path not holding any lock.
2 The binding to SCSI device tree makes code complex, while at the same
  time doesn't bring us any benefit. All ACPI handlings are still done
  in ATA module, not in SCSI.

Rework the ATA ACPI binding code to bind ACPI handle to ATA transport
devices(ATA port and ATA device). The binding needs to be done only once,
since the ATA transport devices do not go away with hotplug. And due to
this, the flush_work call in hotplug handler for ATA bay is no longer
needed.

Tested on an Intel test platform for binding and runtime power off for
ODD(ZPODD) and hard disk; on an ASUS S400C for binding and normal boot
and S3, where its SATA port node has _SDD and _GTF control methods when
configured as an AHCI controller and its PATA device node has _GTF
control method when configured as an IDE controller. SATA PMP binding
and ATA hotplug is not tested.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Dirk Griesbach <spamthis@freenet.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-23 12:09:23 -04:00
Anthony Foiani
99bbdfa6bd sata_fsl: save irqs while coalescing
Before this patch, I was seeing the following lockdep splat on my
MPC8315 (PPC32) target:

  [    9.086051] =================================
  [    9.090393] [ INFO: inconsistent lock state ]
  [    9.094744] 3.9.7-ajf-gc39503d #1 Not tainted
  [    9.099087] ---------------------------------
  [    9.103432] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
  [    9.109431] scsi_eh_1/39 [HC1[1]:SC0[0]:HE0:SE1] takes:
  [    9.114642]  (&(&host->lock)->rlock){?.+...}, at: [<c02f4168>] sata_fsl_interrupt+0x50/0x250
  [    9.123137] {HARDIRQ-ON-W} state was registered at:
  [    9.128004]   [<c006cdb8>] lock_acquire+0x90/0xf4
  [    9.132737]   [<c043ef04>] _raw_spin_lock+0x34/0x4c
  [    9.137645]   [<c02f3560>] fsl_sata_set_irq_coalescing+0x68/0x100
  [    9.143750]   [<c02f36a0>] sata_fsl_init_controller+0xa8/0xc0
  [    9.149505]   [<c02f3f10>] sata_fsl_probe+0x17c/0x2e8
  [    9.154568]   [<c02acc90>] driver_probe_device+0x90/0x248
  [    9.159987]   [<c02acf0c>] __driver_attach+0xc4/0xc8
  [    9.164964]   [<c02aae74>] bus_for_each_dev+0x5c/0xa8
  [    9.170028]   [<c02ac218>] bus_add_driver+0x100/0x26c
  [    9.175091]   [<c02ad638>] driver_register+0x88/0x198
  [    9.180155]   [<c0003a24>] do_one_initcall+0x58/0x1b4
  [    9.185226]   [<c05aeeac>] kernel_init_freeable+0x118/0x1c0
  [    9.190823]   [<c0004110>] kernel_init+0x18/0x108
  [    9.195542]   [<c000f6b8>] ret_from_kernel_thread+0x64/0x6c
  [    9.201142] irq event stamp: 160
  [    9.204366] hardirqs last  enabled at (159): [<c043f778>] _raw_spin_unlock_irq+0x30/0x50
  [    9.212469] hardirqs last disabled at (160): [<c000f414>] reenable_mmu+0x30/0x88
  [    9.219867] softirqs last  enabled at (144): [<c002ae5c>] __do_softirq+0x168/0x218
  [    9.227435] softirqs last disabled at (137): [<c002b0d4>] irq_exit+0xa8/0xb4
  [    9.234481]
  [    9.234481] other info that might help us debug this:
  [    9.240995]  Possible unsafe locking scenario:
  [    9.240995]
  [    9.246898]        CPU0
  [    9.249337]        ----
  [    9.251776]   lock(&(&host->lock)->rlock);
  [    9.255878]   <Interrupt>
  [    9.258492]     lock(&(&host->lock)->rlock);
  [    9.262765]
  [    9.262765]  *** DEADLOCK ***
  [    9.262765]
  [    9.268684] no locks held by scsi_eh_1/39.
  [    9.272767]
  [    9.272767] stack backtrace:
  [    9.277117] Call Trace:
  [    9.279589] [cfff9da0] [c0008504] show_stack+0x48/0x150 (unreliable)
  [    9.285972] [cfff9de0] [c0447d5c] print_usage_bug.part.35+0x268/0x27c
  [    9.292425] [cfff9e10] [c006ace4] mark_lock+0x2ac/0x658
  [    9.297660] [cfff9e40] [c006b7e4] __lock_acquire+0x754/0x1840
  [    9.303414] [cfff9ee0] [c006cdb8] lock_acquire+0x90/0xf4
  [    9.308745] [cfff9f20] [c043ef04] _raw_spin_lock+0x34/0x4c
  [    9.314250] [cfff9f30] [c02f4168] sata_fsl_interrupt+0x50/0x250
  [    9.320187] [cfff9f70] [c0079ff0] handle_irq_event_percpu+0x90/0x254
  [    9.326547] [cfff9fc0] [c007a1fc] handle_irq_event+0x48/0x78
  [    9.332220] [cfff9fe0] [c007c95c] handle_level_irq+0x9c/0x104
  [    9.337981] [cfff9ff0] [c000d978] call_handle_irq+0x18/0x28
  [    9.343568] [cc7139f0] [c000608c] do_IRQ+0xf0/0x1a8
  [    9.348464] [cc713a20] [c000fc8c] ret_from_except+0x0/0x14
  [    9.353983] --- Exception: 501 at _raw_spin_unlock_irq+0x40/0x50
  [    9.353983]     LR = _raw_spin_unlock_irq+0x30/0x50
  [    9.364839] [cc713af0] [c043db10] wait_for_common+0xac/0x188
  [    9.370513] [cc713b30] [c02ddee4] ata_exec_internal_sg+0x2b0/0x4f0
  [    9.376699] [cc713be0] [c02de18c] ata_exec_internal+0x68/0xa8
  [    9.382454] [cc713c20] [c02de4b8] ata_dev_read_id+0x158/0x594
  [    9.388205] [cc713ca0] [c02ec244] ata_eh_recover+0xd88/0x13d0
  [    9.393962] [cc713d20] [c02f2520] sata_pmp_error_handler+0xc0/0x8ac
  [    9.400234] [cc713dd0] [c02ecdc8] ata_scsi_port_error_handler+0x464/0x5e8
  [    9.407023] [cc713e10] [c02ecfd0] ata_scsi_error+0x84/0xb8
  [    9.412528] [cc713e40] [c02c4974] scsi_error_handler+0xd8/0x47c
  [    9.418457] [cc713eb0] [c004737c] kthread+0xa8/0xac
  [    9.423355] [cc713f40] [c000f6b8] ret_from_kernel_thread+0x64/0x6c

This fix was suggested by Bhushan Bharat <R65777@freescale.com>, and
was discussed in email at:

  http://linuxppc.10917.n7.nabble.com/MPC8315-reboot-failure-lockdep-splat-possibly-related-tp75162.html

Same patch successfully tested with 3.9.7.  linux-next compiled but
not tested on hardware.

This patch is based off linux-next tag next-20130819
(which is commit 66a01bae29d11916c09f9f5a937cafe7d402e4a5 )

Signed-off-by: Anthony Foiani <anthony.foiani@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2013-08-20 08:38:23 -04:00
Terry Suereth
8ffff94d20 libata: apply behavioral quirks to sil3826 PMP
Fixing support for the Silicon Image 3826 port multiplier, by applying
to it the same quirks applied to the Silicon Image 3726.  Specifically
fixes the repeated timeout/reset process which previously afflicted
the 3726, as described from line 290.  Slightly based on notes from:

https://bugzilla.redhat.com/show_bug.cgi?id=890237

Signed-off-by: Terry Suereth <terry.suereth@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2013-08-19 09:38:21 -04:00
Mark Langsdorf
2b79c56fb4 sata, highbank: send extra clock cycles in SGPIO patterns
Some SGPIO PICs don't follow the standard very well and expect a certain
number of clock cycles or port frames in each SGPIO pattern. Add two
optional parameters in the DTB that can provide the number of extra
clock cycles to be sent before and after SGPIO pattern. Read those
parameters from the DTB and send the extra clock cycles.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-14 16:43:30 -04:00
Mark Langsdorf
b2e4c7b94e sata, highbank: set tx_atten override bits
Some board designs do not drive the SATA transmit lines within the
specification. The ECME can provide override settings, on a per board
basis, to bring the transmit lines within spec. Read those settings
from the DTB and program them in.

At the time of submission, no production hardware requires this patch.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-14 16:43:29 -04:00
Julia Lawall
4a9b7f9f27 drivers/ata/sata_rcar.c: simplify use of devm_ioremap_resource
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.

Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@

- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  ... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
  ... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  e = devm_ioremap_resource(e1, res);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-14 09:31:36 -04:00
Rob Herring
404eafe137 sata highbank: enable 64-bit DMA mask when using LPAE
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-09 12:08:32 -04:00
Mark Langsdorf
8c427f0626 sata, highbank: fix ordering of SGPIO signals
The ACTIVITY and ERROR signals were reversed in the original commit.
Fix that so that hard drive activity does not show up on the error
light, and attempts to indicate that the hard drive is failing do
not show up as hard drive activity. This fixes a fairly serious
functional bug in the driver, but failing to apply this patch will
not cause any stability issues on the system.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2013-08-09 12:07:13 -04:00
Jingoo Han
3d70a363d9 ata: pata_samsung_cf: add missing __iomem annotation
Added missing __iomem annotation and staticized local symbol
in order to fix the following sparse warnings:

drivers/ata/pata_samsung_cf.c:244:14: warning: symbol 'pata_s3c_data_xfer' was not declared. Should it be static?
drivers/ata/pata_samsung_cf.c:423:20: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:423:20:    expected void const volatile [noderef] <asn:2>*addr
drivers/ata/pata_samsung_cf.c:423:20:    got void *
drivers/ata/pata_samsung_cf.c:425:9: warning: incorrect type in argument 2 (different address spaces)
drivers/ata/pata_samsung_cf.c:425:9:    expected void volatile [noderef] <asn:2>*addr
drivers/ata/pata_samsung_cf.c:425:9:    got void *
drivers/ata/pata_samsung_cf.c:448:37: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:448:37:    expected void *s3c_ide_regbase
drivers/ata/pata_samsung_cf.c:448:37:    got void [noderef] <asn:2>*ide_addr
drivers/ata/pata_samsung_cf.c:463:37: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:463:37:    expected void *s3c_ide_regbase
drivers/ata/pata_samsung_cf.c:463:37:    got void [noderef] <asn:2>*ide_addr

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-09 10:12:23 -04:00
Jingoo Han
b91bb0da07 ata: pata_arasan: Staticize local symbols
These local symbols are used only in this file.
Fix the following sparse warnings:

drivers/ata/pata_arasan_cf.c:657:6: warning: symbol 'arasan_cf_error_handler' was not declared. Should it be static?
drivers/ata/pata_arasan_cf.c:686:14: warning: symbol 'arasan_cf_qc_issue' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-08-09 10:12:23 -04:00
Ezequiel Garcia
e0067f0b71 sata_mv: Remove unneeded CONFIG_HAVE_CLK ifdefs
If CONFIG_HAVE_CLK is not selected, then all the clk API turn out
into no-ops. In other words, there's no need to have the ifdefs.

The only side-effect of this patch is the extra tiny kmalloc,
but that's not enough reason to have such ugly ifdefs all around
the code.

tj: Slightly massaged comment as per Andrew Lunn.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-07-30 09:03:01 -04:00
Jingoo Han
61b8c345aa ata: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-07-30 08:59:24 -04:00
Rafael J. Wysocki
8ad928d52e ACPI / PM: Use ACPI_STATE_D3_COLD instead of ACPI_STATE_D3 everywhere
There are several places in the tree where ACPI_STATE_D3 is used
instead of ACPI_STATE_D3_COLD which should be used instead for
clarity.  Modify them all to use ACPI_STATE_D3_COLD as appropriate.

[The definition of ACPI_STATE_D3 itself cannot go away at this point
 as it is part of ACPICA.]

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
2013-07-30 14:36:20 +02:00
Niels de Vos
71ab1d58c2 pata_imx: expose module alias for loading from device-tree
Enable auto loading by udev when pata_imx is compiled as a module.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-07-29 12:13:08 -04:00
Ezequiel Garcia
e8038ebbd5 sata_mv: Remove unneeded forward declaration
These forward declarations are no longer needed, and are probably
historical left-over.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-07-29 11:58:47 -04:00
Tejun Heo
867974fc09 ahci_imx: depend on CONFIG_MFD_SYSCON
ahci_imx makes use of regmap but the dependency wasn't specified in
Kconfig leading build failures if CONFIG_AHCI_IMX is enabled but
CONFIG_MFD_SYSCON is not.  Add the Kconfig dependency.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
2013-07-26 08:57:56 -04:00
Aaron Lu
88ba547883 libata: acpi: remove dead code for ata_acpi_(un)bind
Commit 7381fe737 "libata-acpi: remove redundent code for power resource
handling" removed ata_acpi_(un)bind but left their prototypes in libata.h,
so remove them.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-07-25 10:49:13 -04:00
Richard Zhu
9e54eae23b ahci_imx: add ahci sata support on imx platforms
imx6q contains one Synopsys AHCI SATA controller, But it can't share
ahci_platform driver with other controllers because there are some
misalignments of the generic AHCI controller - the bits definitions of
the HBA registers, the Vendor Specific registers, the AHCI PHY clock
and the AHCI signals adjustment window(GPR13 register).

 - CAP_SSS(bit20) of the HOST_CAP is writable, default value is '0',
   should be configured to be '1'

 - bit0 (only one AHCI SATA port on imx6q) of the HOST_PORTS_IMPL
   should be set to be '1'.(default 0)

 - One Vendor Specific register HOST_TIMER1MS(offset:0xe0) should be
   configured regarding to the frequency of AHB bus clock.

 - Configurations of the AHCI PHY clock, and the signal parameters of
   the GPR13

Setup its own ahci sata driver, contained the imx6q specific
initialized codes, re-use the generic ahci_platform driver, and keep
the generic ahci_platform driver clean as much as possible.

tj: patch description reformatted

Signed-off-by: Richard Zhu <r65037@freescale.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-07-24 12:29:08 -04:00
Xiaotian Feng
c91bc6ccd1 ahci: fix Null pointer dereference in achi_host_active()
commit b29900e6 (AHCI: Make distinct names for ports in /proc/interrupts)
introuded a regression, which resulted Null pointer dereference for achi
host with dummy ports. For ahci ports, when the port is dummy port, its
private_data will be NULL, as ata_dummy_port_ops doesn't support ->port_start.

changes in v2: use pp to check dummy ports, update comments

Reported-and-tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Xiaotian Feng <xtfeng@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alexander Gordeev <agordeev@redhat.com>
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
2013-07-23 10:25:32 -04:00
Tejun Heo
bb96961928 libata: make it clear that sata_inic162x is experimental
sata_inic162x never reached a state where it's reliable enough for
production use and data corruption is a relatively common occurrence.
Make the driver generate warning about the issues and mark the Kconfig
option as experimental.

If the situation doesn't improve, we'd be better off making it depend
on CONFIG_BROKEN.  Let's wait for several cycles and see if the kernel
message draws any attention.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Martin Braure de Calignon <braurede@free.fr>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Reported-by: risc4all@yahoo.com
2013-07-22 17:11:14 -04:00
Jingoo Han
42b9ab7ab7 libata: replace strict_strtol() with kstrtol()
The usage of strict_strtol() is not preferred, because
strict_strtol() is obsolete. Thus, kstrtol() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-07-22 16:15:01 -04:00
Youquan Song
eac27f04a7 ata: Fix DVD not dectected at some platform with Wellsburg PCH
There is a patch b55f84e2d5 "ata_piix: Fix DVD
 not dectected at some Haswell platforms" to fix an issue of DVD not
recognized on Haswell Desktop platform with Lynx Point.
Recently, it is also found the same issue at some platformas with Wellsburg PCH.

So deliver a similar patch to fix it by disables 32bit PIO in IDE mode.

Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2013-07-16 05:52:02 -06:00
Linus Torvalds
d144746478 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "MIPS updates:

   - All the things that didn't make 3.10.
   - Removes the Windriver PPMC platform.  Nobody will miss it.
   - Remove a workaround from kernel/irq/irqdomain.c which was there
     exclusivly for MIPS.  Patch by Grant Likely.
   - More small improvments for the SEAD 3 platform
   - Improvments on the BMIPS / SMP support for the BCM63xx series.
   - Various cleanups of dead leftovers.
   - Platform support for the Cavium Octeon-based EdgeRouter Lite.

  Two large KVM patchsets didn't make it for this pull request because
  their respective authors are vacationing"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (124 commits)
  MIPS: Kconfig: Add missing MODULES dependency to VPE_LOADER
  MIPS: BCM63xx: CLK: Add dummy clk_{set,round}_rate() functions
  MIPS: SEAD3: Disable L2 cache on SEAD-3.
  MIPS: BCM63xx: Enable second core SMP on BCM6328 if available
  MIPS: BCM63xx: Add SMP support to prom.c
  MIPS: define write{b,w,l,q}_relaxed
  MIPS: Expose missing pci_io{map,unmap} declarations
  MIPS: Malta: Update GCMP detection.
  Revert "MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET"
  MIPS: APSP: Remove <asm/kspd.h>
  SSB: Kconfig: Amend SSB_EMBEDDED dependencies
  MIPS: microMIPS: Fix improper definition of ISA exception bit.
  MIPS: Don't try to decode microMIPS branch instructions where they cannot exist.
  MIPS: Declare emulate_load_store_microMIPS as a static function.
  MIPS: Fix typos and cleanup comment
  MIPS: Cleanup indentation and whitespace
  MIPS: BMIPS: support booting from physical CPU other than 0
  MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS
  MIPS: GIC: Fix gic_set_affinity infinite loop
  MIPS: Don't save/restore OCTEON wide multiplier state on syscalls.
  ...
2013-07-13 14:52:21 -07:00
Linus Torvalds
9e220385c4 Merge branch 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
 "Overview of changes:

   - The rest of maintainer email address updates.

   - Some core updates - more robust default behavior for port
     multipliers, better error reporting for SG_IO commands, and a way
     to better work around now ancient and probably pretty rare PATA ->
     SATA bridges with ATAPI devices.

   - sata_rcar stabilization.

   - Some hardware PCI ID additions and one-off low level driver
     updates."

* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits)
  AHCI: use ATA_BUSY
  libata-zpodd: must use ata_tf_init()
  ahci: AHCI-mode SATA patch for Intel Coleto Creek DeviceIDs
  ata_piix: IDE-mode SATA patch for Intel Coleto Creek DeviceIDs
  libata: cleanup SAT error translation
  ahci: sata: add support for exynos5440 sata
  libata: skip SRST for all SIMG [34]7x port-multipliers
  ahci: remove pmp link online check in FBS EH
  sata highbank: add bit-banged SGPIO driver support
  ahci: make ahci_transmit_led_message into a function pointer
  sata_rcar: fix compilation warning in sata_rcar_thaw()
  sata_highbank: increase retry count but shorten duration for Calxeda controller
  ata: use pci_get_drvdata()
  ipr: qc_fill_rtf() method should not store alternate status register
  sata_rcar: add 'base' local variable to some functions
  sata_rcar: correct 'sata_rcar_sht'
  sata_rcar: kill superfluous code in sata_rcar_bmdma_fill_sg()
  libata: do not limit R-Car SATA driver to shmobile
  ata: use platform_{get,set}_drvdata()
  AHCI: Make distinct names for ports in /proc/interrupts
  ...
2013-07-03 19:49:46 -07:00
Linus Torvalds
862f001254 PCI changes for the v3.11 merge window:
PCI device hotplug
     - Add pci_alloc_dev() interface (Gu Zheng)
     - Add pci_bus_get()/put() for reference counting (Jiang Liu)
     - Fix SR-IOV reference count issues (Jiang Liu)
     - Remove unused acpi_pci_roots list (Jiang Liu)
 
   MSI
     - Conserve interrupt resources on x86 (Alexander Gordeev)
 
   AER
     - Force fatal severity when component has been reset (Betty Dall)
     - Reset link below Root Port as well as Downstream Port (Betty Dall)
     - Fix "Firmware first" flag setting (Bjorn Helgaas)
     - Don't parse HEST for non-PCIe devices (Bjorn Helgaas)
 
   ASPM
     - Warn when we can't disable ASPM as driver requests (Bjorn Helgaas)
 
   Miscellaneous
     - Add CircuitCo PCI IDs (Darren Hart)
     - Add AMD CZ SATA and SMBus PCI IDs (Shane Huang)
     - Work around Ivytown NTB BAR size issue (Jon Mason)
     - Detect invalid initial BAR values (Kevin Hao)
     - Add pcibios_release_device() (Sebastian Ott)
     - Fix powerpc & sparc PCI_UNKNOWN power state usage (Bjorn Helgaas)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJR0dhDAAoJEFmIoMA60/r8AUoP/RrKOXC2GGZCqUIKjUyxaCU+
 NXwaNhjfRuge5lZHE8fUAnYVveFTv0iNo8if/md866/pS4il3vxaMWRhZrBddXqe
 juyxPUGaOb5NmI2C+g5ebQ1xHhnOU6kWrgQ5kQk5GmJdm6BpiWDCFaalyioYj27v
 FoN/25IG+5EtJjP6kRdQGFZq+RYOqlBfQp4fdFmY5bDsQiCLREH6YWHeNSkH+t1I
 Eh84WESqGzgaZyCb9QKM2AcU/HMKLux4VXAYp9idVr3tH1j9b/klQI7xNW7sPnkY
 LIzKTcfF89iXkhxc7zrF0O/n5rC5Cp7LQpiFMV6yCT3w25yWpq9itOwqcZ/nfCv6
 fje8P1B2lwGrizkwKKLcosTzWkJewvfLkVye90WS3g0i3zlijF4pfEiw3a2ujA91
 MP9/JmX+ZZ5QeGyPuFmYJyMlInH4vtSdegl9jtaeuX4cOnuMP+Ouxnxc+mH2bOfl
 Z5/K1OSCYLfb27uWM7od2lgb+GFHLMP+RMy073h0ZMpDvM6EnZy5iu1zU9+yJO4S
 8/aRhBz4h+YEBinnXOJvHzMfu3wQQ7UvXZqEspgsug2Z5xHvxhMLhrJQgpVUSdsW
 Nrdm1dNdACV/cvt/lWzUE7SmUaOua/r/cVmViF2ryeRET7t65in+5NHXmXP8ET+r
 1WA7pbykfegC9uY84PaK
 =X3Lo
 -----END PGP SIGNATURE-----

Merge tag 'pci-v3.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI changes from Bjorn Helgaas:
 "PCI device hotplug
    - Add pci_alloc_dev() interface (Gu Zheng)
    - Add pci_bus_get()/put() for reference counting (Jiang Liu)
    - Fix SR-IOV reference count issues (Jiang Liu)
    - Remove unused acpi_pci_roots list (Jiang Liu)

  MSI
    - Conserve interrupt resources on x86 (Alexander Gordeev)

  AER
    - Force fatal severity when component has been reset (Betty Dall)
    - Reset link below Root Port as well as Downstream Port (Betty Dall)
    - Fix "Firmware first" flag setting (Bjorn Helgaas)
    - Don't parse HEST for non-PCIe devices (Bjorn Helgaas)

  ASPM
    - Warn when we can't disable ASPM as driver requests (Bjorn Helgaas)

  Miscellaneous
    - Add CircuitCo PCI IDs (Darren Hart)
    - Add AMD CZ SATA and SMBus PCI IDs (Shane Huang)
    - Work around Ivytown NTB BAR size issue (Jon Mason)
    - Detect invalid initial BAR values (Kevin Hao)
    - Add pcibios_release_device() (Sebastian Ott)
    - Fix powerpc & sparc PCI_UNKNOWN power state usage (Bjorn Helgaas)"

* tag 'pci-v3.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (51 commits)
  MAINTAINERS: Add ACPI folks for ACPI-related things under drivers/pci
  PCI: Add CircuitCo vendor ID and subsystem ID
  PCI: Use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM)
  PCI: Return early on allocation failures to unindent mainline code
  PCI: Simplify IOV implementation and fix reference count races
  PCI: Drop redundant setting of bus->is_added in virtfn_add_bus()
  unicore32/PCI: Remove redundant call of pci_bus_add_devices()
  m68k/PCI: Remove redundant call of pci_bus_add_devices()
  PCI / ACPI / PM: Use correct power state strings in messages
  PCI: Fix comment typo for pcie_pme_remove()
  PCI: Rename pci_release_bus_bridge_dev() to pci_release_host_bridge_dev()
  PCI: Fix refcount issue in pci_create_root_bus() error recovery path
  ia64/PCI: Clean up pci_scan_root_bus() usage
  PCI/AER: Reset link for devices below Root Port or Downstream Port
  ACPI / APEI: Force fatal AER severity when component has been reset
  PCI/AER: Remove "extern" from function declarations
  PCI/AER: Move AER severity defines to aer.h
  PCI/AER: Set dev->__aer_firmware_first only for matching devices
  PCI/AER: Factor out HEST device type matching
  PCI/AER: Don't parse HEST table for non-PCIe devices
  ...
2013-07-03 16:31:35 -07:00
Tejun Heo
5a0a6a4f17 Merge branch 'libata/for-3.10-fixes' into libata/for-3.11
libata/for-3.10-fixes never got submitted during v3.10 cycle.  Merge
it into for-3.11 so that it can be routed together with other changes
scheduled for v3.11.

Three trivial conflicts in drivers/ata/sata_rcar.c.  All are caused by
1b20f6a9ad ("sata_rcar: add 'base' local variable to some functions")
conflicting with logic updates in for-3.10-fixes.  The offending
commit simply adds local variable @base on functions which
dereferences sata_rcar_priv->base multiple times.  The resolutions are
trivial - applying s/priv->base/base/ in the conflicting logic
updates.

Signed-off-by: Tejun Heo <tj@kernel.org>
2013-07-02 19:54:16 -07:00
Rafael J. Wysocki
e52cff8bdd Merge branch 'pm-assorted'
* pm-assorted:
  PM / QoS: Add pm_qos and dev_pm_qos to events-power.txt
  PM / QoS: Add dev_pm_qos_request tracepoints
  PM / QoS: Add pm_qos_request tracepoints
  PM / QoS: Add pm_qos_update_target/flags tracepoints
  PM / QoS: Update Documentation/power/pm_qos_interface.txt
  PM / Sleep: Print last wakeup source on failed wakeup_count write
  PM / QoS: correct the valid range of pm_qos_class
  PM / wakeup: Adjust messaging for wake events during suspend
  PM / Runtime: Update .runtime_idle() callback documentation
  PM / Runtime: Rework the "runtime idle" helper routine
  PM / Hibernate: print physical addresses consistently with other parts of kernel
2013-06-28 13:01:40 +02:00
Sergei Shtylyov
9bbb1b0e2a AHCI: use ATA_BUSY
ahci_hardreset() and ahci_p5wdh_hardreset() use bare numbers for the
BSY bit of the ATA status register, despite it's #define'd in
<linux/ata.h>.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-06-24 16:29:31 -07:00
Aaron Lu
44521527be libata-acpi: add back ACPI based hotplug functionality
Commit 30dcf76acc "libata: migrate ACPI code over to new bindings"
mistakenly dropped the code to register hotplug notificaion handler
for ATA port/devices, causing regression for people using ATA bay,
as kernel bug #59871 shows.

Fix this by adding back the hotplug notification handler registration
code.  Since this code has to be run once and notification needs to
be installed on every ATA port/devices handle no matter if there is
actual device attached, we can't do this in binding time for ATA
device ACPI handle, as the binding only occurs when a SCSI device is
created, i.e. there is device attached.  So introduce the
ata_acpi_hotplug_init() function to loop scan all ATA ACPI handles
and if it is available, install the notificaion handler for it during
ATA init time.

With the ATA ACPI handle binding to SCSI device tree, it is possible
now that when the SCSI hotplug work removes the SCSI device, the ACPI
unbind function will find that the corresponding ACPI device has
already been deleted by dock driver, causing a scaring message like:
[  128.263966] scsi 4:0:0:0: Oops, 'acpi_handle' corrupt
Fix this by waiting for SCSI hotplug task finish in our notificaion
handler, so that the removal of ACPI device done in ACPI unbind
function triggered by the removal of SCSI device is run earlier when
ACPI device is still available.

[rjw: Rebased]
References: https://bugzilla.kernel.org/show_bug.cgi?id=59871
Reported-bisected-and-tested-by: Dirk Griesbach <spamthis@freenet.de>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: 3.6+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-25 00:51:33 +02:00
Sergei Shtylyov
d0887c43f5 libata-zpodd: must use ata_tf_init()
There are  some SATA controllers which have both devices 0 and 1 but this module
just zeroes out taskfile and sets then ATA_TFLAG_DEVICE (not sure that's needed)
which could  lead to a wrong device being selected just before issuing command.
Thus we should  call ata_tf_init()  which sets  up the device register value
properly, like  all other users of ata_exec_internal() do...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2013-06-24 15:45:28 -07:00
Seth Heasley
1cfc7df3de ahci: AHCI-mode SATA patch for Intel Coleto Creek DeviceIDs
This patch adds the AHCI-mode SATA DeviceIDs for the Intel Coleto Creek PCH.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2013-06-21 11:40:58 -07:00