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This mimics the behavior of actual SMBus chips better.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
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There's a new script named i2c-stub-from-dump that can be very helpful
when working with the i2c-stub driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Use numbered adapter registration to always have the same hardware bus
show up at the same number.
PWRficient 1682M has three buses, they are all on the same PCI device but
different functions. So do the simple thing and register them based on
function number. Future products, if having a different number of busses,
are expected to have similar behaviour w.r.t. device/function layout.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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My guess is that all the chips supported by this driver support block
transactions and reset, but for now we play it safe and only list the
ones for which this was actually tested.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Oleg Ryjkov <olegr@olegr.ca>
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revert 19ef9309273d26cb005cb23e6a370353dca91099.
Kevin Winchester reported a lockup during X startup an bisected
it to this commit.
Reported-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
[CIFS] DFS build fixes
[CIFS] DFS support: provide shrinkable mounts
[CIFS] Do not log path names in lookup errors
[CIFS] DFS support patchset: Added mountdata
[CIFS] Forgot to add two new files from previous commit
[CIFS] DNS name resolution helper upcall for cifs
[CIFS] fix checkpatch warnings in fs/cifs/inode.c
[CIFS] hold ses sem on tcp session reconnect during mount
[CIFS] Allow setting mode via cifs acl
[CIFS] fix unicode string alignment in SPNEGO setup
[CIFS] cifs_partialpagewrite() cleanup
[CIFS] use krb5 session key from first SMB session after a NegProt
[CIFS] redo existing session setup if needed in cifs_mount
[CIFS] Only dump SPNEGO key if CONFIG_CIFS_DEBUG2 is set
[CIFS] fix SetEA failure to some Samba versions
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* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (63 commits)
ide: remove REQ_TYPE_ATA_CMD
ide: switch ide_cmd_ioctl() to use REQ_TYPE_ATA_TASKFILE requests
ide: switch set_xfer_rate() to use REQ_TYPE_ATA_TASKFILE requests
ide: fix final status check in drive_cmd_intr()
ide: check BUSY and ERROR status bits before reading data in drive_cmd_intr()
ide: don't enable local IRQs for PIO-in in driver_cmd_intr() (take 2)
ide: convert "empty" REQ_TYPE_ATA_CMD requests to use REQ_TYPE_ATA_TASKFILE
ide: initialize rq->cmd_type in ide_init_drive_cmd() callers
ide: use wait_drive_not_busy() in drive_cmd_intr() (take 2)
ide: kill DATA_READY define
ide: task_end_request() fix
ide: use rq->nr_sectors in task_end_request()
ide: remove needless ->cursg clearing from task_end_request()
ide: set IDE_TFLAG_IN_* flags before queuing/executing command
ide-tape: fix handling of non-special requests in ->end_request method
ide: fix final status check in task_in_intr()
ide: clear HOB bit for REQ_TYPE_ATA_CMD requests in ide_end_drive_cmd()
ide: fix ->io_32bit race in ide_taskfile_ioctl()
cmd64x: remove /proc/ide/cmd64x
ide: remove broken disk byte-swapping support
...
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* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (56 commits)
[S390] replace lock_cpu_hotplug with get_online_cpus
[S390] usage of s390dbf: shrink number of debug areas to use.
[S390] constify function pointer tables.
[S390] do local_irq_restore while spinning in spin_lock_irqsave.
[S390] add smp_call_function_mask
[S390] dasd: fix loop in request expiration handling
[S390] Unused field / extern declaration in processor.h
[S390] Remove TOPDIR from Makefile
[S390] dasd: add hyper PAV support to DASD device driver, part 1
[S390] single-step cleanup
[S390] Move NOTES and BUG_TABLE.
[S390] drivers/s390/: Spelling fixes
[S390] include/asm-s390/: Spelling fixes
[S390] arch/s390/: Spelling fixes
[S390] Use diag308 subcodes 3 and 6 for reboot and dump when possible.
[S390] vmemmap: allocate struct pages before 1:1 mapping
[S390] Initialize sclp_ipl_info
[S390] Allocate and free cpu lowcores and stacks when needed/possible.
[S390] use LIST_HEAD instead of LIST_HEAD_INIT
[S390] Load disabled wait psw instead of stopping cpu on halt.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
selinux: fix labeling of /proc/net inodes
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Based on the earlier work by Tejun Heo.
All users are gone so we can finally remove it.
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Based on the earlier work by Tejun Heo.
There should be no functionality changes caused by this patch.
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Based on the earlier work by Tejun Heo.
Switch set_xfer_rate() to use REQ_TYPE_ATA_TASKFILE requests
and make ide_wait_cmd() static.
There should be no functionality changes caused by this patch.
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Don't check for READY_STAT bit being set for PIO-in protocol (makes the
final status check in drive_cmd_intr() match the one in task_in_intr()).
Also fix function name reported by ide_error() call while at it.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Don't enable local IRQs for PIO-in protocol in driver_cmd_intr().
While at it:
* Remove redundant rq->cmd_type check.
* Read status register after enabling local IRQs for no-data protocol.
v2:
* Re-add DRQ=1 check lost in v1 (noticed by Sergei).
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Based on the previous work by Tejun Heo.
There should be no functionality changes caused by this patch.
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Initialize rq->cmd_type in ide_wait_cmd(), ide_cmd_ioctl() and
set_pio_mode() (other callers were aleady over-riding rq->cmd_type).
* Remove no longer needed rq->cmd_type setup from ide_init_drive_cmd().
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Use wait_drive_not_busy() in drive_cmd_intr().
v2:
* Fix wait_drive_not_busy() comment (noticed by Sergei).
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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task_end_request() modified to always call ide_end_drive_cmd()
for taskfile requests. Previously, ide_end_drive_cmd() was
called only when IDE_TFLAG_FLAGGED was set. Also,
ide_dma_intr() is modified to use task_end_request().
Enables TASKFILE ioctls to get valid register outputs on
successful completion.
Bart:
- ported it over recent IDE changes
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add IDE_TFLAG_{HOB,TF,DEVICE} defines.
* Set IDE_TFLAG_IN_* flags in {do_rw,ide_no_data,ide_raw}_taskfile() users.
* Remove no longer needed ->tf_flags setup from ide_end_drive_cmd().
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Check for DRQ bit being cleared on the final status check.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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ide_dump_status() may set HOB bit before ide_end_drive_cmd() is called.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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In ide_taskfile_ioctl(), there was a race condition involving
drive->io_32bit. It was cleared and restored during ioctl
requests but there was no synchronization with other requests.
So, other requests could execute with the altered ->io_32bit
setting or updated drive->io_32bit could be overwritten by
ide_taskfile_ioctl().
This patch adds IDE_TFLAG_IO_16BIT flag to indicate to
ide_pio_datablock() that 16-bit I/O is needed regardless of
drive->io_32bit settting.
Bart:
- ported it over recent IDE changes
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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This belongs to user-space (and only if really needed).
text data bss dec hex filename
3874 180 28 4082 ff2 drivers/ide/pci/cmd64x.o.before
2231 180 0 2411 96b drivers/ide/pci/cmd64x.o.after
Additionaly to being bloat the code reported incorrect UDMA modes for
the reserved values of UDIDETCR0/1 registers.
Also while at it remove unused CNTRL_DIS_RA0/1 defines.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove broken disk byte-swapping support:
- it can cause a data corruption on SMP (or if using PREEMPT on UP)
- all data coming from disk are byte-swapped by taskfile_*_data() which
results in incorrect identify data being reported by /proc/ide/ and IOCTLs
- "hdx=bswap/byteswap" kernel parameter has been broken on m68k host drivers
(including Atari/Q40 ones) since 2.5.x days (because of 'hwif' zero-ing)
- byte-swapping is limited to PIO transfers (for working with TiVo disks on
x86 machines using user-space solutions or dm-byteswap should result in
much better performance because DMA can be used)
For previous discussions please see:
http://www.ussg.iu.edu/hypermail/linux/kernel/0201.0/0768.html
http://lkml.org/lkml/2004/2/28/111
[ I have dm-byteswap device mapper target if somebody is interested
(patch is for 2.6.4 though but I'll dust it off if needed). ]
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Add ide_busy_sleep() helper and use it in do_probe(),
enable_nest() and probe_hwif().
As a nice side-effect this fixes a minor bug in do_probe()
(the code was reading status register without any delay).
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Print banner message once per controller in m68k host drivers.
* Change printk() level to KERN_INFO in buddha, falconide and gayle.
* Add banner message to q40ide.
This is basically a preparation for the future IDE layer changes.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Move setting hwif->sg_max_nents from pmac_ide_setup_device()
to pmac_ide_setup_dma().
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Cc: Russell King <rmk@arm.linux.org.uk>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Move setting hwif->gendev.parent from ide_pci_setup_ports()
to ide_hwif_configure().
* Always set hwif->io_ports in ide_hwif_configure().
* Use ide_init_port_hw() in ide_hwif_configure().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* ide_init_hwif_ports() call in setup-pci.c::ide_hwif_configure()
doesn't depend on the default cotrol register offset, default IRQ
or ppc_ide_md.ide_init_hwif implementations so ide_std_init_ports()
can always be used.
* Since 'base' is always non-zero and thus hwif->io_ports[IDE_DATA_OFFSET]
is also non-zero always clear hwif->noprobe.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* hwif->hold is always set in au_ide_probe() (few lines earlier),
no need to set it again
* hwif->{channel,select_data,config_data} should be always zero
* autotune PIO also if CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA is defined
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Make remaining built-in only IDE host drivers modular, add ide-scan-pci.c
file for probing PCI host drivers registered with IDE core (special case
for built-in IDE and CONFIG_IDEPCI_PCIBUS_ORDER=y) and then take care of
the ordering in which all IDE host drivers are probed when IDE is built-in
during link time.
* Move probing of gayle, falconide, macide, q40ide and buddha (m68k arch
specific) host drivers, before PCI ones (no PCI on m68k), ide-cris (cris
arch specific), cmd640 (x86 arch specific) and pmac (ppc arch specific).
* Move probing of ide-cris (cris arch specific) host driver before cmd640
(x86 arch specific).
* Move probing of mpc8xx (ppc specific) host driver before ide-pnp (depends
on ISA and none of ppc platform that use mpc8xx supports ISA) and ide-h8300
(h8300 arch specific).
* Add "probe_vlb" kernel parameter to cmd640 host driver and update
Documentation/ide.txt accordingly.
* Make IDE_ARM config option visible so it can also be disabled if needed.
* Remove bogus comment from ide.c while at it.
v2:
* Fix two issues spotted by Sergei:
- replace ENOMEM error value by ENOENT in ide-h8300 host driver
- fix MODULE_PARM_DESC() in cmd640 host driver
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add mpc8xx_ide_probe() to mpc8xx.c and call it from probe_for_hwifs().
* Convert ide_arm, ide-cris, ide-h8300, ide-pnp, buddha, falconide, gayle,
macide, q40ide, cmd640 and mpc8xx host drivers to use ide_device_add().
This removes dependency on ide_generic for these drivers so update
ide/Kconfig accordingly.
v2:
* ide_arm build fix (s/ide_device_idx/ide_device_add/)
(Thanks to Christoph Lameter <clameter@sgi.com> for reporting the problem).
Cc: Mikael Starvik <starvik@axis.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Make BLK_DEV_CMD640 select IDE_GENERIC.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Remove ide_init_port_data() call from ide_arm_init() and move
ide_arm_init() call from init_ide_data() to ide_init().
This patch is a preparation for the future changes (and as a side-effect
makes obsolete "idex=io[,ctl[,irq]]" kernel parameters work for ide_arm).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Rename init_hwif_data() to ide_init_port_data() and export it.
* For all users of ide_register_hw() with 'initializing' argument set
hwif->present and hwif->hold are always zero so convert these host
drivers to use ide_find_port()+ide_init_port_data()+ide_init_port_hw()
instead (also no need for init_hwif_default() call since the setup
done by it gets over-ridden by ide_init_port_hw() call).
* Drop 'initializing' argument from ide_register_hw().
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add ide_init_port_hw() helper.
* rapide.c: convert rapide_locate_hwif() to rapide_setup_ports()
and use ide_init_port_hw().
* ide_platform.c: convert plat_ide_locate_hwif() to plat_ide_setup_ports()
and use ide_init_port_hw().
* sgiioc4.c: use ide_init_port_hw().
* pmac.c: add 'hw_regs_t *hw' argument to pmac_ide_setup_device(),
setup 'hw' in pmac_ide_{macio,pci}_attach() and use ide_init_port_hw()
in pmac_ide_setup_device().
This patch is a preparation for the future changes in the IDE probing code.
There should be no functionality changes caused by this patch.
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Jeremy Higdon <jeremy@sgi.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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'if (hwif->io_ports[IDE_DATA_OFFSET] != cmd_base)' is always true.
Cc: Jeremy Higdon <jeremy@sgi.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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