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path: root/drivers/ide/arm
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2008-07-24palm_bk3710: add UltraDMA/100 supportSergei Shtylyov
This controller supports UltraDMA up to mode 5 but it should be clocked with at least twice the data strobe frequency, so enable mode 5 for 100+ MHz IDECLK. While at it, start passing the correct device to clk_get() -- it worked anyway but WTF? :-/ Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-24rapide: add module_exit()Bartlomiej Zolnierkiewicz
Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-24icside: add module_exit()Bartlomiej Zolnierkiewicz
Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23ide: add ide_host_free() helper (take 2)Bartlomiej Zolnierkiewicz
* Add ide_host_free() helper and convert ide_host_remove() to use it. * Fix handling of ide_host_register() failure in ide_host_add(), icside.c, ide-generic.c, falconide.c and sgiioc4.c. While at it: * Fix handling of ide_host_alloc_all() failure in ide-generic.c. * Fix handling of ide_host_alloc() failure in falconide.c (also return the correct error value if no device is found). v2: * falconide build fix. (From Stephen Rothwell) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23ide: add ide_host_add() helperBartlomiej Zolnierkiewicz
Add ide_host_add() helper which does ide_host_alloc()+ide_host_register(), then convert ide_setup_pci_device[s](), ide_legacy_device_add() and some host drivers to use it. While at it: * Fix ide_setup_pci_device[s](), ide_arm.c, gayle.c, ide-4drives.c, macide.c, q40ide.c, cmd640.c and cs5520.c to return correct error value. * -ENOENT -> -ENOMEM in rapide.c, ide-h8300.c, ide-generic.c, au1xxx-ide.c and pmac.c * -ENODEV -> -ENOMEM in palm_bk3710.c, ide_platform.c and delkin_cb.c * -1 -> -ENOMEM in ide-pnp.c Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23ide: add struct ide_host (take 3)Bartlomiej Zolnierkiewicz
* Add struct ide_host which keeps pointers to host's ports. * Add ide_host_alloc[_all]() and ide_host_remove() helpers. * Pass 'struct ide_host *host' instead of 'u8 *idx' to ide_device_add[_all]() and rename it to ide_host_register[_all](). * Convert host drivers and core code to use struct ide_host. * Remove no longer needed ide_find_port(). * Make ide_find_port_slot() static. * Unexport ide_unregister(). v2: * Add missing 'struct ide_host *host' to macide.c. v3: * Fix build problem in pmac.c (s/ide_alloc_host/ide_host_alloc/) (Noticed by Stephen Rothwell). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23ide: add struct ide_tp_ops (take 2)Bartlomiej Zolnierkiewicz
* Add struct ide_tp_ops for transport methods. * Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info and ide_hwif_t. * Set the default hwif->tp_ops in ide_init_port_data(). * Set host driver specific hwif->tp_ops in ide_init_port(). * Export ide_exec_command(), ide_read_status(), ide_read_altstatus(), ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}() and ata_{in,out}put_data(). * Convert host drivers and core code to use struct ide_tp_ops. * Remove no longer needed default_hwif_transport(). * Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops. While at it: * Use struct ide_port_info in falconide.c and q40ide.c. * Rename ata_{in,out}put_data() to ide_{in,out}put_data(). v2: * Fix missing convertion in ns87415.c. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23ide: remove ->INB, ->OUTB and ->OUTBSYNC methodsBartlomiej Zolnierkiewicz
* Remove no longer needed ->INB, ->OUTB and ->OUTBSYNC methods. Then: * Remove no longer used default_hwif_[mm]iops() and ide_[mm_]outbsync(). * Cleanup SuperIO handling in ns87415.c. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23ide: add ->read_status methodBartlomiej Zolnierkiewicz
* Remove ide_read_status() inline helper. * Add ->read_status method for reading ATA Status register and use it instead of ->INB. While at it: * Don't use HWGROUP() macro. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23ide: remove ide_setup_dma()Bartlomiej Zolnierkiewicz
Export sff_dma_ops and then remove ide_setup_dma(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23ide: pass hw_regs_t-s to ide_device_add[_all]() (take 3)Bartlomiej Zolnierkiewicz
* Add 'hw_regs_t **hws' argument to ide_device_add[_all]() and convert host drivers + ide_legacy_init_one() + ide_setup_pci_device[s]() to use it instead of calling ide_init_port_hw() directly. [ However if host has > 1 port we must still set hwif->chipset to hint consecutive ide_find_port() call that the previous slot is occupied. ] * Unexport ide_init_port_hw(). v2: * Use defines instead of hard-coded values in buddha.c, gayle.c and q40ide.c. (Suggested by Geert Uytterhoeven) * Better patch description. v3: * Fix build problem in ide-cs.c. (Noticed by Stephen Rothwell) There should be no functional changes caused by this patch. Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16icside: always try to probe first interfaceBartlomiej Zolnierkiewicz
Try to probe first interface even if ide_hwifs[]'s slot for the second interface cannot be obtained. While at it: - Add DRV_NAME define and use it for request_dma() instead of hwif->name. Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16rapide: fix rapide_probe() return valueBartlomiej Zolnierkiewicz
Return -ENOENT on ide_find_port() failure. While at it: - Cleanup rapide_probe() a bit. Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16rapide: use struct ide_port_infoBartlomiej Zolnierkiewicz
Convert the driver to use struct ide_port_info. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16icside: use ide_init_port_hw()Bartlomiej Zolnierkiewicz
* Move ide_find_port() and default_hwif_mmiops() calls from icside_setup() to icside_register_v{5,6}(). * Convert icside_setup() to initialize hw_regs_t instead ide_hwif_t and icside_register_v{5,6}() to use ide_init_port_hw(). * Rename icside_setup() to icside_setup_ports(). There should be no functional changes caused by this patch. Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16icside: don't use hwif->hwif_dataBartlomiej Zolnierkiewicz
* Move ecard_set_drvdata() from icside_probe() to icside_register_v{5,6}(), then use state->ioc_base instead of hwif->hwif_data in icside_maskproc() and icside_dma_test_irq(). While at it: * Add sel field to struct icside_state, then use state->{sel,ioc_base} instead of ->{select,config}_data in icside_dma_setup(). There should be no functional changes caused by this patch. Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16ide: fix hwif-s initializationBartlomiej Zolnierkiewicz
* Add ide_hwifs[] entry initialization to ide_find_port_slot() and remove ide_init_port_data() calls from host drivers. * Unexport ide_init_port_data(). * Remove no longer needed init_ide_data(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16ide: convert ide-timing.h to ide-timings.c library (take 2)Bartlomiej Zolnierkiewicz
* Don't include ide-timing.h in cs5535 and sis5513 host drivers (they don't need it currently). * Convert ide-timing.h to ide-timings.c library and add CONFIG_IDE_TIMINGS config option to be selected by host drivers using the library. While at it: - fix ide_timing_find_mode() placement v2: * Add missing EXPORT_SYMBOLs. (Stephen Rothwell <sfr@canb.auug.org.au>) There should be no functional changes caused by this patch. Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16BAST: Remove old IDE driverBen Dooks
Remove the old BAST IDE driver, as we are now using the platform-pata support. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: remove ->mmio flag from ide_hwif_tBartlomiej Zolnierkiewicz
Since scc_pata host driver no longer uses IDE PCI layer / ide_dma_setup() and all other ->mmio users set also IDE_HFLAG_MMIO host flag we can safely remove ->mmio flag. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15palm_bk3710: fix tRP for UDMA mode 4Mikhail Cherkashin
Fix tRP timing for UDMA mode 4 according to the ATA specification. Signed-off-by: Mikhail Cherkashin <mcherkhashin@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-08palm_bk3710: fix IDECLK period calculationSergei Shtylyov
The driver uses completely bogus rounding formula for calculating period from the IDECLK frequency which gives one-off period values (e.g. 11 ns with 100 MHz IDECLK) which in turn can lead to overclocked IDE transfer timings. Actually, rounding is just wrong in this case, so use a mere division for a safe result. While at it, also: - give 'ide_palm_clk' variable a more suitable name; - get rid of the useless 'ideclkp' variable; - drop the LISP stype 'p' postfix from the 'clkp' variable's name. :-) Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: mcherkashin@ru.mvista.com Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-06-30Revert "BAST: Remove old IDE driver"Bartlomiej Zolnierkiewicz
This reverts commit ac1623625c5818bbdf5c68973098ba386ba7a004. It was premature to remove it now, we will do it post-2.6.26. Thanks to Russell King for noticing the issue. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-06-20BAST: Remove old IDE driverBen Dooks
Remove the old BAST IDE driver, as we are now using the platform-pata support. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-06-20palm_bk3710: fix resource managementSergei Shtylyov
The driver expected a *virtual* address in the IDE platform device's memory resource and didn't request the memory region for the register block. Fix this taking into account the fact that DaVinci SoC devices are fixed-mapped to the virtual memory early and we can get their virtual addresses using IO_ADDRESS() macro, not having to call ioremap()... While at it, also do some cosmetic changes... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-06-10palm_bk3710: add warm-plug supportBartlomiej Zolnierkiewicz
Don't fail the probe if there are no devices attached to the controller. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-06-10ide: fix host drivers missing hwif->chipset initializationBartlomiej Zolnierkiewicz
ide_find_port() now depends on ->chipset being set for occupied ide_hwifs[] slots so all host drivers have to initialize hwif->chipset properly. This patch fixes a regression on hosts with > 1 port or with a single port but no devices attached to it for an affected host drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: add IDE_HFLAG_MMIO host flag (take 2)Bartlomiej Zolnierkiewicz
* Add IDE_HFLAG_MMIO host flag and set it for hosts which use default_hwif_mmiops(). v2: * Fix kernel panic in pmac host driver (',' should be '|'). Thanks to Kamalesh for reporting it + testing the fix and to Andrew for hinting me about the source of the issue. Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28more icside breakage (from next ide merge)Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-27ide: add struct ide_io_ports (take 3)Bartlomiej Zolnierkiewicz
* Add struct ide_io_ports and use it instead of `unsigned long io_ports[]` in ide_hwif_t. * Rename io_ports[] in hw_regs_t to io_ports_array[]. * Use un-named union for 'unsigned long io_ports_array[]' and 'struct ide_io_ports io_ports' in hw_regs_t. * Remove IDE_*_OFFSET defines. v2: * scc_pata.c build fix from Stephen Rothwell. v3: * Fix ctl_adrr typo in Sparc-specific part of ns87415.c. (Noticed by Andrew Morton) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: make ide_unregister() take 'ide_hwif_t *' as an argument (take 2)Bartlomiej Zolnierkiewicz
* Make ide_unregister() take 'ide_hwif_t *hwif' instead of 'unsigned int index' (hwif->index) as an argument and update all users accordingly. While at it: * Remove unnecessary checks for hwif != NULL from ide-pnp.c::idepnp_remove() and delkin_cb.c::delkin_cb_remove(). * Remove needless hwif->chipset assignment from scc_pata.c::scc_remove(). v2: * Fixup ide_unregister() documentation. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: sanitize ide_unregister() usageBartlomiej Zolnierkiewicz
* Remove ide_unregister() call from ide_exit() (host drivers take care of unregistering hwif-s themselves). * Remove ide_unregister() call from probe methods of bast-ide, palm_bk3710, ide-cs and delkin_cb host drivers (ide_find_port() returns only free ide_hwifs[] entries). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: remove IDE_HFLAG_NO_AUTOTUNE host flagBartlomiej Zolnierkiewicz
* Don't set IDE_HFLAG_NO_AUTOTUNE host flag in sgiioc4 and icside host drivers - there is no need for it as they don't implement ->set_pio_mode method. * Remove no longer needed IDE_HFLAG_NO_AUTOTUNE host flag. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: fix icside breakageAl Viro
Fallout from commit ac95beedf8bc97b24f9540d4da9952f07221c023 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: constify struct ide_dma_opsBartlomiej Zolnierkiewicz
* Export ide_dma_exec_cmd() and __ide_dma_test_irq(). * Constify struct ide_dma_ops. * Always set hwif->dma_ops to &sff_dma_ops in ide_setup_dma() (it is later overriden by ide_init_port() if needed) and drop 'const struct ide_port_info *d' argument. While at it: * Rename __ide_dma_test_irq() to ide_dma_test_irq(). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add struct ide_dma_ops (take 3)Bartlomiej Zolnierkiewicz
Add struct ide_dma_ops and convert core code + drivers to use it. While at it: * Drop "ide_" prefix from ->ide_dma_end and ->ide_dma_test_irq methods. * Drop "ide_" "infixes" from DMA methods. * au1xxx-ide.c: - use auide_dma_{test_irq,end}() directly in auide_dma_timeout() * pdc202xx_old.c: - drop "old_" "infixes" from DMA methods * siimage.c: - add siimage_dma_test_irq() helper - print SATA warning in siimage_init_one() * Remove no longer needed ->init_hwif implementations. v2: * Changes based on review from Sergei: - s/siimage_ide_dma_test_irq/siimage_dma_test_irq/ - s/drive->hwif/hwif/ in idefloppy_pc_intr(). - fix patch description w.r.t. au1xxx-ide changes - fix au1xxx-ide build - fix naming for cmd64*_dma_ops - drop "ide_" and "old_" infixes - s/hpt3xxx_dma_ops/hpt37x_dma_ops/ - s/hpt370x_dma_ops/hpt370_dma_ops/ - use correct DMA ops for HPT302/N, HPT371/N and HPT374 - s/it821x_smart_dma_ops/it821x_pass_through_dma_ops/ v3: * Two bugs slipped in v2 (noticed by Sergei): - use correct DMA ops for HPT374 (for real this time) - handle HPT370/HPT370A properly Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26palm_bk3710: use ->init_dma methodBartlomiej Zolnierkiewicz
* Move DMA setup to palm_bk3710_init_dma(). * Convert the driver to use ->init_dma method. Cc: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26icside: use ->init_dma methodBartlomiej Zolnierkiewicz
* Add 'const struct ide_port_info *d' argument to icside_dma_init(). * Make icside_dma_init() return an error value and add icside_dma_off_init() (->init_dma implementation for case when DMA cannot be enabled). * Convert the driver to use ->init_dma method. Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: cleanup ide_setup_dma()Bartlomiej Zolnierkiewicz
* There is no need to call ide_release_dma_engine(). * Move the code up to (and including) ide_allocate_dma_engine() call to the callers of ide_setup_dma(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: cleanup setting hwif->mmio flagBartlomiej Zolnierkiewicz
It is no longer needed to set hwif->mmio flag to tell IDE layer to not manage resources so cleanup host drivers that used hwif->mmio flag only for this purpose. Ditto for ide_legacy_init_one(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide_arm: manage I/O resources in driverBartlomiej Zolnierkiewicz
* Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Use driver name for resources management. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: remove ->noprobe field from ide_hwif_tBartlomiej Zolnierkiewicz
Update IDE PMAC host driver to use drive->noprobe instead of hwif->noprobe and remove hwif->noprobe completely (it is always set to zero now). There should be no functional changes caused by this patch. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add struct ide_port_ops (take 2)Bartlomiej Zolnierkiewicz
* Move hooks for port/host specific methods from ide_hwif_t to 'struct ide_port_ops'. * Add 'const struct ide_port_ops *port_ops' to 'struct ide_port_info' and ide_hwif_t. * Update host drivers and core code accordingly. While at it: * Rename ata66_*() cable detect functions to *_cable_detect() to match the standard naming. (Suggested by Sergei Shtylyov) v2: * Fix build for bast-ide. (Noticed by Andrew Morton) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26bast-ide: fix resources reservationBartlomiej Zolnierkiewicz
* Tell IDE layer to not manage resources by setting hwif->mmio flag and request resources in bastide_init(). * Use request_mem_region() for resources reservation. * Use driver name for resources reservation. Cc: Ben Dooks <support@simtec.co.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: use DIV_ROUND_UPJulia Lawall
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. An extract of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ #include <linux/kernel.h> @depends on haskernel@ expression n,d; @@ ( - (n + d - 1) / d + DIV_ROUND_UP(n,d) | - (n + (d - 1)) / d + DIV_ROUND_UP(n,d) ) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP((n),d) + DIV_ROUND_UP(n,d) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP(n,(d)) + DIV_ROUND_UP(n,d) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: cleanup ide_find_port()Bartlomiej Zolnierkiewicz
Remove no longer needed matching against I/O base and 'base' argument. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-25ATA/IDE: fix platform driver hotplug/coldplugKay Sievers
Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable ATA and IDE platform drivers, to re-enable auto loading. NOTE: both ata/pata_platform.c and ide/legacy/ide_platform.c claim to provide "the" platform_pata driver, and there's no build-time mutual exclusion mechanism. This means that configs which enable both drivers will make some trouble when hotplugging... [dbrownell@users.sourceforge.net: more drivers, registration fixes] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Tejun Heo <htejun@gmail.com> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-18ide: remove ->hold field from ide_hwif_t (take 2)Bartlomiej Zolnierkiewicz
->hold is write-only now, remove it. v2: * v1 missed bast-ide, palm_bk3710, ide-cs and delkin_cb host drivers. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-18ide: remove broken/dangerous HDIO_[UNREGISTER,SCAN]_HWIF ioctls (take 3)Bartlomiej Zolnierkiewicz
hdparm explicitely marks HDIO_[UNREGISTER,SCAN]_HWIF ioctls as DANGEROUS and given the number of bugs we can assume that there are no real users: * DMA has no chance of working because DMA resources are released by ide_unregister() and they are never allocated again. * Since ide_init_hwif_ports() is used for ->io_ports[] setup the ioctls don't work for almost all hosts with "non-standard" (== non ISA-like) layout of IDE taskfile registers (there is a lot of such host drivers). * ide_port_init_devices() is not called when probing IDE devices so: - drive->autotune is never set and IDE host/devices are not programmed for the correct PIO/DMA transfer modes (=> possible data corruption) - host specific I/O 32-bit and IRQ unmasking settings are not applied (=> possible data corruption) - host specific ->port_init_devs method is not called (=> no luck with ht6560b, qd65xx and opti621 host drivers) * ->rw_disk method is not preserved (=> no HPT3xxN chipsets support). * ->serialized flag is not preserved (=> possible data corruption when using icside, aec62xx (ATP850UF chipset), cmd640, cs5530, hpt366 (HPT3xxN chipsets), rz1000, sc1200, dtc2278 and ht6560b host drivers). * ->ack_intr method is not preserved (=> needed by ide-cris, buddha, gayle and macide host drivers). * ->sata_scr[] and sata_misc[] is cleared by ide_unregister() and it isn't initialized again (SiI3112 support needs them). * To issue an ioctl() there need to be at least one IDE device present in the system. * ->cable_detect method is not preserved + it is not called when probing IDE devices so cable detection is broken (however since DMA support is also broken it doesn't really matter ;-). * Some objects which may have already been freed in ide_unregister() are restored by ide_hwif_restore() (i.e. ->hwgroup). * ide_register_hw() may unregister unrelated IDE ports if free ide_hwifs[] slot cannot be found. * When IDE host drivers are modular unregistered port may be re-used by different host driver that owned it first causing subtle bugs. Since we now have a proper warm-plug support remove these ioctls, then remove no longer needed: - ide_register_hw() and ide_hwif_restore() functions - 'init_default' and 'restore' arguments of ide_unregister() - zeroeing of hwif->{dma,extra}_* fields in ide_unregister() As an added bonus IDE core code size shrinks by ~3kB (x86-32). v2: * fix ide_unregister() arguments in cleanup_module() (Andrew Morton). v3: * fix ide_unregister() arguments in palm_bk3710.c. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-18ide: use ide_find_port() instead of ide_deprecated_find_port()Bartlomiej Zolnierkiewicz
* Use ide_find_port() instead of ide_deprecated_find_port() in bast-ide/ palm_bk3710/ide-cs/delkin_cb host drivers and in ide_register_hw(). * Remove no longer needed ide_deprecated_find_port(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>