linux.git/drivers/ata, branch v4.12-rc2

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2017-05-09T17:01:15+00:00

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
  ...

Merge branch 'for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata

2017-05-01T20:34:49+00:00

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

libata: remove SCT WRITE SAME support

2017-04-28T22:09:59+00:00

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 
Reviewed-by: Martin K. Petersen 
Signed-off-by: Tejun Heo

libata: reject passthrough WRITE SAME requests

2017-04-28T22:08:21+00:00

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 
Cc: stable@vger.kernel.org
Reviewed-by: Martin K. Petersen 
Signed-off-by: Tejun Heo

sata_via: Enable hotplug only on VT6421

2017-04-11T00:12:18+00:00

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]  
[  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]  
[  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] [] 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 
Signed-off-by: Tejun Heo

pata_bk3710: clear status bits of BMISP on chipset initialization

2017-03-30T10:43:04+00:00

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 
Acked-by: Sergei Shtylyov 
Acked-by: Tejun Heo 
Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Sekhar Nori

pata_bk3710: disable IORDY Timer on chipset initialization

2017-03-30T10:42:26+00:00

Disable IORDY Timer as the driver doesn't handle IORDY Timer
interrupt anyway.

Suggested-by: Sergei Shtylyov 
Acked-by: Sergei Shtylyov 
Acked-by: Tejun Heo 
Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Sekhar Nori

ata: add Palmchip BK3710 PATA controller driver

2017-03-30T10:41:32+00:00

Add Palmchip BK3710 PATA controller driver.

Acked-by: Sergei Shtylyov 
Acked-by: Tejun Heo 
Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Sekhar Nori

Revert "pata_atiixp: Don't use unconnected secondary port on SB600/SB700"

2017-03-27T17:52:00+00:00

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 
Reported-by: Markku Pesonen 
Fixes: 5946fdaee4ba ("pata_atiixp: Don't use unconnected secondary port on SB600/SB700")
Cc: Darren Stevens

ata: ahci: add support for DaVinci DM816 SATA controller

2017-03-24T15:40:03+00:00

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 
Signed-off-by: Tejun Heo