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path: root/drivers/ata/pata_falcon.c
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2021-11-29pata_falcon: Avoid type warnings from sparseFinn Thain
The zero day bot reported some sparse complaints in pata_falcon.c. E.g. drivers/ata/pata_falcon.c:58:41: warning: cast removes address space '__iomem' of expression drivers/ata/pata_falcon.c:58:41: warning: incorrect type in argument 1 (different address spaces) drivers/ata/pata_falcon.c:58:41: expected unsigned short volatile [noderef] [usertype] __iomem *port drivers/ata/pata_falcon.c:58:41: got unsigned short [usertype] * The same thing shows up in 8 places, all told. Avoid this by removing unnecessary type casts. Cc: Jens Axboe <axboe@kernel.dk> Cc: Michael Schmitz <schmitzmic@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Reported-by: kernel test robot <lkp@intel.com> Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Finn Thain <fthain@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2021-08-11scsi: ata: Use scsi_cmd_to_rq() instead of scsi_cmnd.requestBart Van Assche
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-8-bvanassche@acm.org Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Ming Lei <ming.lei@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-10m68k/q40: Replace q40ide driver with pata_falcon and falconideFinn Thain
This allows m68k q40 systems to switch from the deprecated IDE subsystem to libata. Enhance the byte-swapping falconide and pata_falcon platform drivers to accept an irq resource, for use on q40. Atari ST-DMA IRQ arrangements seem to co-exist with q40 IRQ arrangements without too much mess. The new IO resources were added solely for the purpose of making request_region() reservations identical to those made by q40ide: these regions aren't used for actual IO. Cc: Michael Schmitz <schmitzmic@gmail.com> Cc: Richard Zidlicky <rz@linux-m68k.org> Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Finn Thain <fthain@linux-m68k.org> Link: https://lore.kernel.org/r/eefb7e9c2291e09fb4e065ce06bc105f05bb9e06.1623287706.git.fthain@linux-m68k.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-11-18m68k/atari: Convert Falcon IDE drivers to platform driversMichael Schmitz
Autoloading of Falcon IDE driver modules requires converting these drivers to platform drivers. Add platform device for Falcon IDE interface in Atari platform setup code. Use this in the pata_falcon driver in place of the simple platform device set up on the fly. Convert falconide driver to use the same platform device that is used by pata_falcon also. (With the introduction of a platform device for the Atari Falcon IDE interface, the old Falcon IDE driver no longer loads (resource already claimed by the platform device)). Tested (as built-in driver) on my Atari Falcon. Signed-off-by: Michael Schmitz <schmitzmic@gmail.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://lore.kernel.org/r/1573008449-8226-1-git-send-email-schmitzmic@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2018-03-01pata_falcon: clarify license version and use SPDX headerBartlomiej Zolnierkiewicz
- clarify license version (it should be GPL 2.0) - use SPDX header Cc: Michael Schmitz <schmitzmic@gmail.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-02-21Merge branch 'for-4.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: - Bartlomiej added pata_falcon - Christoph is trying to remove use of static 4k buf. It's still WIP - config cleanup around HAS_DMA - other fixes and driver-specific changes * 'for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (29 commits) ata: pata_of_platform: using of_property_read_u32() helper pata_atiixp: Don't use unconnected secondary port on SB600/SB700 libata-sff: Don't scan disabled ports when checking for legacy mode. pata_octeon_cf: remove unused local variables from octeon_cf_set_piomode() ahci: qoriq: added ls2088a platforms support ahci: qoriq: report error when ecc register address is missing in dts ahci: qoriq: added a condition to enable dma coherence Revert "libata: switch to dynamic allocation instead of ata_scsi_rbuf" ahci: imx: fix building without hwmon or thermal ata: add Atari Falcon PATA controller driver ata: pass queued command to ->sff_data_xfer method ata: allow subsystem to be used on m68k arch libata: switch to dynamic allocation instead of ata_scsi_rbuf libata: don't call ata_scsi_rbuf_fill for command without a response buffer libata: call ->scsi_done from ata_scsi_simulate libata: remove the done callback from ata_scsi_args libata: move struct ata_scsi_args to libata-scsi.c libata: avoid global response buffer in atapi_qc_complete libata-eh: Use switch() instead of sparse array for protocol strings ata: sata_mv: Convert to devm_ioremap_resource() ...
2017-01-10ata: add Atari Falcon PATA controller driverBartlomiej Zolnierkiewicz
Add Atari Falcon PATA controller driver. The major difference when compared to legacy IDE's falconide host driver is that we are using polled PIO mode and thus avoiding the need for STDMA locking magic altogether. Tested under ARAnyM emulator. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>