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2017-05-09Merge tag 'armsoc-drivers' of ↵Linus Torvalds3-0/+392
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "Driver updates for ARM SoCs: Reset subsystem, merged through arm-soc by tradition: - Make bool drivers explicitly non-modular - New support for i.MX7 and Arria10 reset controllers PATA driver for Palmchip BK371 (acked by Tejun) Power domain drivers for i.MX (GPC, GPCv2) - Moved out of mach-imx for GPC - Bunch of tweaks, fixes, etc PMC support for Tegra186 SoC detection support for Renesas RZ/G1H and RZ/G1N Move Tegra flow controller driver from mach directory to drivers/soc - (Power management / CPU power driver) Misc smaller tweaks for other platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits) soc: pm-domain: Fix the mangled urls soc: renesas: rcar-sysc: Add support for R-Car H3 ES2.0 soc: renesas: rcar-sysc: Add support for fixing up power area tables soc: renesas: Register SoC device early soc: imx: gpc: add workaround for i.MX6QP to the GPC PD driver dt-bindings: imx-gpc: add i.MX6 QuadPlus compatible soc: imx: gpc: add defines for domain index soc: imx: Add GPCv2 power gating driver dt-bindings: Add GPCv2 power gating driver ARM/clk: move the ICST library to drivers/clk ARM: plat-versatile: remove stale clock header ARM: keystone: Drop PM domain support for k2g soc: ti: Add ti_sci_pm_domains driver dt-bindings: Add TI SCI PM Domains PM / Domains: Do not check if simple providers have phandle cells PM / Domains: Add generic data pointer to genpd data struct soc/tegra: Add initial flowctrl support for Tegra132/210 soc/tegra: flowctrl: Add basic platform driver soc/tegra: Move Tegra flowctrl driver ARM: tegra: Remove unnecessary inclusion of flowctrl header ...
2017-05-01Merge branch 'for-4.12' of ↵Linus Torvalds12-630/+256
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata updates from Tejun Heo: "The biggest core change is removal of SCT WRITE SAME support, which never worked properly. Other than that, trivial updates in core code and specific embedded driver updates" * 'for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata: remove SCT WRITE SAME support libata: reject passthrough WRITE SAME requests dt-bindings: ata: add DT bindings for ahci-dm816 SATA controller ata: ahci: add support for DaVinci DM816 SATA controller pata: remove the at91 driver libata: make ata_sg_clean static over again libata: use setup_deferrable_timer ata: allow subsystem to be used on m32r and s390 archs Delete redundant return value check of platform_get_resource() ata: constify of_device_id structures
2017-04-28libata: remove SCT WRITE SAME supportChristoph Hellwig1-103/+29
This was already disabled a while ago because it caused I/O errors, and it's severly getting into the way of the discard / write zeroes rework. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-04-28libata: reject passthrough WRITE SAME requestsChristoph Hellwig1-0/+8
The WRITE SAME to TRIM translation rewrites the DATA OUT buffer. While the SCSI code accomodates for this by passing a read-writable buffer userspace applications don't cater for this behavior. In fact it can be used to rewrite e.g. a readonly file through mmap and should be considered as a security fix. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-04-11sata_via: Enable hotplug only on VT6421Ondrej Zary1-8/+10
Commit 57e5568fda27 ("sata_via: Implement hotplug for VT6421") adds hotplug IRQ handler for VT6421 but enables hotplug on all chips. This is a bug because it causes "irq xx: nobody cared" error on VT6420 when hot-(un)plugging a drive: [ 381.839948] irq 20: nobody cared (try booting with the "irqpoll" option) [ 381.840014] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-rc5+ #148 [ 381.840066] Hardware name: P4VM800/P4VM800, BIOS P1.60 05/29/2006 [ 381.840117] Call Trace: [ 381.840167] <IRQ> [ 381.840225] ? dump_stack+0x44/0x58 [ 381.840278] ? __report_bad_irq+0x14/0x97 [ 381.840327] ? handle_edge_irq+0xa5/0xa5 [ 381.840376] ? note_interrupt+0x155/0x1cf [ 381.840426] ? handle_edge_irq+0xa5/0xa5 [ 381.840474] ? handle_irq_event_percpu+0x32/0x38 [ 381.840524] ? handle_irq_event+0x1f/0x38 [ 381.840573] ? handle_fasteoi_irq+0x69/0xb8 [ 381.840625] ? handle_irq+0x4f/0x5d [ 381.840672] </IRQ> [ 381.840726] ? do_IRQ+0x2e/0x8b [ 381.840782] ? common_interrupt+0x2c/0x34 [ 381.840836] ? mwait_idle+0x60/0x82 [ 381.840892] ? arch_cpu_idle+0x6/0x7 [ 381.840949] ? do_idle+0x96/0x18e [ 381.841002] ? cpu_startup_entry+0x16/0x1a [ 381.841057] ? start_kernel+0x319/0x31c [ 381.841111] ? startup_32_smp+0x166/0x168 [ 381.841165] handlers: [ 381.841219] [<c12a7263>] ata_bmdma_interrupt [ 381.841274] Disabling IRQ #20 Seems that VT6420 can do hotplug too (there's no documentation) but the comments say that SCR register access (required for detecting hotplug events) can cause problems on these chips. For now, just keep hotplug disabled on anything other than VT6421. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-30pata_bk3710: clear status bits of BMISP on chipset initializationBartlomiej Zolnierkiewicz1-1/+1
Clear IORDYINT, INTRSTAT and DMAERROR bits of BMISP register (value '1' needs to be written to the bit to clear it). Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-03-30pata_bk3710: disable IORDY Timer on chipset initializationBartlomiej Zolnierkiewicz1-2/+2
Disable IORDY Timer as the driver doesn't handle IORDY Timer interrupt anyway. Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-03-30ata: add Palmchip BK3710 PATA controller driverBartlomiej Zolnierkiewicz3-0/+392
Add Palmchip BK3710 PATA controller driver. Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-03-27Revert "pata_atiixp: Don't use unconnected secondary port on SB600/SB700"Tejun Heo1-5/+0
This reverts commit 5946fdaee4ba449e8fbb5d403e1ed69437f916e8. The original commit's assumption that the secondary port is unconnected turns out to be false. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Markku Pesonen <tourula@gmail.com> Fixes: 5946fdaee4ba ("pata_atiixp: Don't use unconnected secondary port on SB600/SB700") Cc: Darren Stevens <darren@stevens-zone.net>
2017-03-24ata: ahci: add support for DaVinci DM816 SATA controllerBartosz Golaszewski3-0/+210
This SATA controller is quite similar to the one present on the DA850 SoC, but the PHY configuration is different and it supports two HBA ports. The IP suffers from the same PMP issue the DA850 does - if we enable PMP but don't use it - softreset fails. Appropriate workaround was implemented in this driver as well. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-16pata: remove the at91 driverBoris Brezillon3-512/+0
This driver is orphan since commit b2026f708e09 ("ARM: at91: remove at91sam9260/at91sam9g20 legacy board support"). Given that nobody cared adding DT support to it, it probably means it's no longer used and is thus a good candidate for removal. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-13libata: make ata_sg_clean static over againJason Yan1-1/+1
Fixes the following sparse warning: drivers/ata/libata-core.c:4913:6: warning: symbol 'ata_sg_clean' was not declared. Should it be static? Signed-off-by: Jason Yan <yanaijie@huawei.com>
2017-03-13libata: use setup_deferrable_timerGeliang Tang1-3/+3
Use setup_deferrable_timer() instead of init_timer_deferrable() to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-09ahci: qoriq: correct the sata ecc setting errorYuantian Tang1-2/+4
Sata ecc is controlled by only 1 bit which is 24bit in big-endian in ecc register. So only setting 24bit to disable sata ecc prevents other bits from being overwritten in ecc register. Signed-off-by: Tang Yuantian <andy.tang@nxp.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-07ata: allow subsystem to be used on m32r and s390 archsBartlomiej Zolnierkiewicz1-1/+0
Both archs should work just fine with libata subsystem nowadays. Suggested-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-06Delete redundant return value check of platform_get_resource()Belen Sarabia1-5/+0
Delete error handling from the result of a call to platform_get_resource() when the value is immediately passed to devm_ioremap_resource(). Signed-off-by: Belen Sarabia <belensarabia@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-06libata: drop WARN from protocol error in ata_sff_qc_issue()Tejun Heo1-1/+0
ata_sff_qc_issue() expects upper layers to never issue commands on a command protocol that it doesn't implement. While the assumption holds fine with the usual IO path, nothing filters based on the command protocol in the passthrough path (which was added later), allowing the warning to be tripped with a passthrough command with the right (well, wrong) protocol. Failing with AC_ERR_SYSTEM is the right thing to do anyway. Remove the unnecessary WARN. Reported-by: Dmitry Vyukov <dvyukov@google.com> Link: http://lkml.kernel.org/r/CACT4Y+bXkvevNZU8uP6X0QVqsj6wNoUA_1exfTSOzc+SmUtMOA@mail.gmail.com Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-06libata: transport: Remove circular dependency at free timeGwendal Grignou1-6/+3
Without this patch, failed probe would not free resources like irq. ata port tdev object currently hold a reference to the ata port object. Therefore the ata port object release function will not get called until the ata_tport_release is called. But that would never happen, releasing the last reference of ata port dev is done by scsi_host_release, which is called by ata_host_release when the ata port object is released. The ata device objects actually do not need to explicitly hold a reference to their real counterpart, given the transport objects are the children of these objects and device_add() is call for each child. We know the parent will not be deleted until we call the child's device_del(). Reported-by: Matthew Whitehead <tedheadster@gmail.com> Tested-by: Matthew Whitehead <tedheadster@gmail.com> Suggested-by: Tejun Heo <tj@kernel.org> Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-06ata: constify of_device_id structuresBhumika Goyal5-5/+5
Declare of_device_id structures as const as they are either passed to the macro MODULE_DEVICE_TABLE or stored in the of_match_table field of a device_driver structure. This field is of type const, so of_device_id structures having this property can be made const too. Cross compiled the files drivers/ata/pata_macio.c and drivers/ata/pata_mpc52xx.c for powerpc architecture. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-03-03Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds1-8/+4
Pull more SCSI updates from James Bottomley: "This is the set of stuff that didn't quite make the initial pull and a set of fixes for stuff which did. The new stuff is basically lpfc (nvme), qedi and aacraid. The fixes cover a lot of previously submitted stuff, the most important of which probably covers some of the failing irq vectors allocation and other fallout from having the SCSI command allocated as part of the block allocation functions" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (59 commits) scsi: qedi: Fix memory leak in tmf response processing. scsi: aacraid: remove redundant zero check on ret scsi: lpfc: use proper format string for dma_addr_t scsi: lpfc: use div_u64 for 64-bit division scsi: mac_scsi: Fix MAC_SCSI=m option when SCSI=m scsi: cciss: correct check map error. scsi: qla2xxx: fix spelling mistake: "seperator" -> "separator" scsi: aacraid: Fixed expander hotplug for SMART family scsi: mpt3sas: switch to pci_alloc_irq_vectors scsi: qedf: fixup compilation warning about atomic_t usage scsi: remove scsi_execute_req_flags scsi: merge __scsi_execute into scsi_execute scsi: simplify scsi_execute_req_flags scsi: make the sense header argument to scsi_test_unit_ready mandatory scsi: sd: improve TUR handling in sd_check_events scsi: always zero sshdr in scsi_normalize_sense scsi: scsi_dh_emc: return success in clariion_std_inquiry() scsi: fix memory leak of sdpk on when gd fails to allocate scsi: sd: make sd_devt_release() static scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework. ...
2017-02-27scripts/spelling.txt: add "followings" pattern and fix typo instancesMasahiro Yamada1-1/+1
Fix typos and add the following to the scripts/spelling.txt: followings||following While we are here, add a missing colon in the boilerplate in DT binding documents. The "you SoC" in allwinner,sunxi-pinctrl.txt was fixed as well. I reworded "as the followings:" to "as follows:" for drivers/usb/gadget/udc/renesas_usb3.c. Link: http://lkml.kernel.org/r/1481573103-11329-32-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-23Merge tag 'armsoc-drivers' of ↵Linus Torvalds3-22/+174
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs. A handful of driver changes this time around. The larger changes are: - Reset drivers for hi3660 and zx2967 - AHCI driver for Davinci, acked by Tejun and brought in here due to platform dependencies - Cleanups of atmel-ebi (External Bus Interface) - Tweaks for Rockchip GRF (General Register File) usage (kitchensink misc register range on the SoCs) - PM domains changes for support of two new ZTE SoCs (zx296718 and zx2967)" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits) soc: samsung: pmu: Add register defines for pad retention control reset: make zx2967 explicitly non-modular reset: core: fix reset_control_put soc: samsung: pm_domains: Read domain name from the new label property soc: samsung: pm_domains: Remove message about failed memory allocation soc: samsung: pm_domains: Remove unused name field soc: samsung: pm_domains: Use full names in subdomains registration log sata: ahci-da850: un-hardcode the MPY bits sata: ahci-da850: add a workaround for controller instability sata: ahci: export ahci_do_hardreset() locally sata: ahci-da850: implement a workaround for the softreset quirk sata: ahci-da850: add device tree match table sata: ahci-da850: get the sata clock using a connection id soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register memory: atmel-ebi: Enable the SMC clock if specified soc: samsung: pmu: Remove unused and duplicated defines memory: atmel-ebi: Properly handle multiple reference to the same CS memory: atmel-ebi: Fix the test to enable generic SMC logic soc: samsung: pm_domains: Add new Exynos5433 compatible soc: samsung: pmu: Add dummy support for Exynos5433 SoC ...
2017-02-23scsi: merge __scsi_execute into scsi_executeChristoph Hellwig1-8/+4
All but one caller want the decoded sense header, so offer the existing __scsi_execute helper as the public scsi_execute API to simply the callers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-21Merge branch 'for-4.11' of ↵Linus Torvalds23-187/+608
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() ...
2017-02-21Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds3-2/+1
Pull SCSI updates from James Bottomley: "This update includes the usual round of major driver updates (ncr5380, ufs, lpfc, be2iscsi, hisi_sas, storvsc, cxlflash, aacraid, megaraid_sas, ...). There's also an assortment of minor fixes and the major update of switching a bunch of drivers to pci_alloc_irq_vectors from Christoph" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (188 commits) scsi: megaraid_sas: handle dma_addr_t right on 32-bit scsi: megaraid_sas: array overflow in megasas_dump_frame() scsi: snic: switch to pci_irq_alloc_vectors scsi: megaraid_sas: driver version upgrade scsi: megaraid_sas: Change RAID_1_10_RMW_CMDS to RAID_1_PEER_CMDS and set value to 2 scsi: megaraid_sas: Indentation and smatch warning fixes scsi: megaraid_sas: Cleanup VD_EXT_DEBUG and SPAN_DEBUG related debug prints scsi: megaraid_sas: Increase internal command pool scsi: megaraid_sas: Use synchronize_irq to wait for IRQs to complete scsi: megaraid_sas: Bail out the driver load if ld_list_query fails scsi: megaraid_sas: Change build_mpt_mfi_pass_thru to return void scsi: megaraid_sas: During OCR, if get_ctrl_info fails do not continue with OCR scsi: megaraid_sas: Do not set fp_possible if TM capable for non-RW syspdIO, change fp_possible to bool scsi: megaraid_sas: Remove unused pd_index from megasas_build_ld_nonrw_fusion scsi: megaraid_sas: megasas_return_cmd does not memset IO frame to zero scsi: megaraid_sas: max_fw_cmds are decremented twice, remove duplicate scsi: megaraid_sas: update can_queue only if the new value is less scsi: megaraid_sas: Change max_cmd from u32 to u16 in all functions scsi: megaraid_sas: set pd_after_lb from MR_BuildRaidContext and initialize pDevHandle to MR_DEVHANDLE_INVALID scsi: megaraid_sas: latest controller OCR capability from FW before sending shutdown DCMD ...
2017-02-17Merge branch 'for-4.11/next' into for-4.11/linus-mergeJens Axboe1-2/+2
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-06scsi: remove eh_timed_out methods in the transport templateChristoph Hellwig3-2/+1
Instead define the timeout behavior purely based on the host_template eh_timed_out method and wire up the existing transport implementations in the host templates. This also clears up the confusion that the transport template method overrides the host template one, so some drivers have to re-override the transport template one. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-31block: introduce blk_rq_is_passthroughChristoph Hellwig1-1/+1
This can be used to check for fs vs non-fs requests and basically removes all knowledge of BLOCK_PC specific from the block layer, as well as preparing for removing the cmd_type field in struct request. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-31sata: ahci-da850: un-hardcode the MPY bitsBartosz Golaszewski1-15/+76
All platforms using this driver now register the SATA refclk. Remove the hardcoded default value from the driver and instead read the rate of the external clock and calculate the required MPY value from it. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Tejun Heo <tj@kernel.org> [nsekhar@ti.com: fix checkpatch warning about an unneeded else] Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-31sata: ahci-da850: add a workaround for controller instabilityBartosz Golaszewski1-1/+27
We have a use case with the da850 SATA controller where at PLL0 frequency of 456MHz (needed to properly service the LCD controller) the chip becomes unstable and the hardreset operation is ignored the first time 50% of times. The sata core driver already retries to resume the link because some controllers ignore writes to the SControl register, but just retrying the resume operation doesn't work - we need to issue he phy/wake reset again to make it work. Reimplement ahci_hardreset() in the driver and poke the controller a couple times before really giving up. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-31sata: ahci: export ahci_do_hardreset() locallyBartosz Golaszewski2-5/+16
We need a way to retrieve the information about the online state of the link in the ahci-da850 driver. Create a new function: ahci_do_hardreset() which is called from ahci_hardreset() for backwards compatibility, but has an additional argument: 'online' - which can be used to check if the link is online after this function returns. The new routine will be used in the ahci-da850 driver to avoid code duplication when implementing a workaround for tha da850 SATA controller quirk/instability. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-31sata: ahci-da850: implement a workaround for the softreset quirkBartosz Golaszewski1-1/+32
There's an issue with the da850 SATA controller: if port multiplier support is compiled in, but we're connecting the drive directly to the SATA port on the board, the drive can't be detected. To make SATA work on the da850-lcdk board: first try to softreset with pmp - if the operation fails with -EBUSY, retry without pmp. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-31sata: ahci-da850: add device tree match tableBartosz Golaszewski1-0/+7
We're using device tree for da850-lcdk. Add the match table to allow to probe the driver. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-31sata: ahci-da850: get the sata clock using a connection idBartosz Golaszewski1-0/+16
In preparation for using two clocks in the driver (the sysclk2-based clock and the external REFCLK), check if we got the functional clock after calling ahci_platform_get_resources(). If not, retry calling clk_get() with con_id specified. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2017-01-27block: split scsi_request out of struct requestChristoph Hellwig1-1/+1
And require all drivers that want to support BLOCK_PC to allocate it as the first thing of their private data. To support this the legacy IDE and BSG code is switched to set cmd_size on their queues to let the block layer allocate the additional space. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-24ata: pata_of_platform: using of_property_read_u32() helperKefeng Wang1-7/+2
Using better of_property_read_u32() than generic of_get_property(). Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-23pata_atiixp: Don't use unconnected secondary port on SB600/SB700Darren Stevens1-0/+5
The SB600 and SB700 southbridge chips from ATI/AMD only have connections for the primary IDE port. As these chips have unique pci device ID's use these to mark the secondary port as 'dummy' Signed-off-by: Darren Stevens <darren@stevens-zone.net> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-23libata-sff: Don't scan disabled ports when checking for legacy mode.Darren Stevens1-3/+13
libata-sff.c checks for legacy mode by testing if both primary and secondary ports on a controller are in legacy mode and selects legacy if either one is. However on some south bridge chips (e.g AMD SB600/SB700) the secondary port is not wired, and when it is disabled by setting the disable bit in the PCI header it appears as a fixed legacy port. Prevent incorrect detection by not testing ports that are marked as 'dummy' tj: Addressed Sergei's review points. Other style edits. Signed-off-by: Darren Stevens <darren@stevens-zone.net> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
2017-01-23pata_octeon_cf: remove unused local variables from octeon_cf_set_piomode()Tejun Heo1-8/+0
@t1 and @t2i are calculated along with @t2 but never used. Drop them. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: David Binderman <dcb314@hotmail.com>
2017-01-20ahci: qoriq: added ls2088a platforms supportTang Yuantian1-0/+9
Ls2088a is new introduced arm-based soc with sata support with following features: 1. Complies with the serial ATA 3.0 specification and the AHCI 1.3.1 specification 2. Contains a high-speed descriptor-based DMA controller 3. Supports the following: a. Speeds of 1.5 Gb/s (first-generation SATA), 3 Gb/s (second-generation SATA), and 6 Gb/s (third-generation SATA) b. FIS-based switching c. Native command queuing (NCQ) commands d. Port multiplier operation e. Asynchronous notification f. SATA BIST mode Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-20ahci: qoriq: report error when ecc register address is missing in dtsTang Yuantian1-2/+9
For ls1021a, and armv8 chasis 2 socs, sata ecc must be disabled. If ecc register is not found in sata node in dts, report error. This is a chip erratum described as bellow: The Read DMA operations get early termination indication from the controller. This issue is observed as CRC error in the status registers. The issue is due to address collision at address 0 in the dual port memory. The read is a dummy read to flush out the header, but due to collision the controller logs the mbit error reported by the ECC check logic. This results in the early termination of the Read DMA operation by the controller. The issue happens to all the interface speeds(GEN1/2/3) for all the products. Workaround: Disable ECC feature on those platforms. Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-20ahci: qoriq: added a condition to enable dma coherenceTang Yuantian1-4/+11
Enable DMA coherence in SATA controller on condition that dma-coherent property exists in sata node in DTS. Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-18Revert "libata: switch to dynamic allocation instead of ata_scsi_rbuf"Tejun Heo1-36/+86
This reverts commit a234f7395c9301a5048cb2daa4c86f15c6f02de8. The commit tried to get rid of the shared global SCSI response buffer. Unfortunately, it added blocking allocation to atomic path. Revert it for now. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Christoph Hellwig <hch@lst.de>
2017-01-15ahci: imx: fix building without hwmon or thermalArnd Bergmann2-1/+3
When CONFIG_HWMON is disabled, we now get a link failure: ERROR: "devm_hwmon_device_register_with_groups" [drivers/ata/ahci_imx.ko] undefined! drivers/ata/ahci_imx.o: In function `imx_ahci_probe': ahci_imx.c:(.text.imx_ahci_probe+0x304): undefined reference to `devm_thermal_zone_of_sensor_register' This makes the code calling into the hwmon subsystem compile-time conditional, and adds a Kconfig dependency to avoid the corner case of having HWMON=m and AHCI_IMX=y, by forcing AHCI_IMX=m in this case. The thermal subsystem already has a check in its header, but that also doesn't cover the THERMAL=m case, so we need a somewhat complex Kconfig expression to handle all cases. Fixes: 54643a83b41a ("ahci: imx: Add imx53 SATA temperature sensor support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-10ata: add Atari Falcon PATA controller driverBartlomiej Zolnierkiewicz3-0/+194
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>
2017-01-10ata: pass queued command to ->sff_data_xfer methodBartlomiej Zolnierkiewicz10-43/+48
For Atari Falcon PATA support we need to check the current command in its ->sff_data_xfer method. Update core code and all users accordingly. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-10ata: allow subsystem to be used on m68k archBartlomiej Zolnierkiewicz1-1/+1
When libata was merged m68k lacked IOMAP support. This has not been true for a long time now so allow subsystem to be used on m68k. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-10libata: switch to dynamic allocation instead of ata_scsi_rbufChristoph Hellwig1-86/+36
Note of the emulated commands in the pageout/pagein path, so just do a GFP_NOIO dynamic allocation. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-10libata: don't call ata_scsi_rbuf_fill for command without a response bufferChristoph Hellwig1-21/+1
No need to copy a zeroed buffer to the caller if the command is defined to not have a response in the SCSI spec. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2017-01-10libata: call ->scsi_done from ata_scsi_simulateChristoph Hellwig1-15/+7
We always need to call ->scsi_done after we've finished emulating a command, so do it in a single place at the end of ata_scsi_simulate. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
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