linux-toradex.git/drivers, branch v3.8.12

mfd: adp5520: Restore mode bits on resume

2013-05-08T03:08:25+00:00

commit c6cc25fda58da8685ecef3f179adc7b99c8253b2 upstream.

The adp5520 unfortunately also clears the BL_EN bit when the nSTNDBY bit is
cleared. So we need to make sure to restore it during resume if it was set
before suspend.

Signed-off-by: Lars-Peter Clausen 
Acked-by: Michael Hennerich 
Signed-off-by: Samuel Ortiz 
Signed-off-by: Greg Kroah-Hartman

mmc: atmel-mci: pio hang on block errors

2013-05-08T03:08:25+00:00

commit bdbc5d0c60f3e9de3eeccf1c1a18bdc11dca62cc upstream.

The driver is doing, by default, multi-block reads. When a block error
occurs, card/block.c instigates a single block read: "mmcblk0: retrying
using single block read".  It leaves the sg chain intact and just changes
the length attribute for the first sg entry and the overall sg_len
parameter.  When atmci_read_data_pio is called to read the single block
of data it ignores the sg_len and expects to read more than 512 bytes as
it sees there are multiple items in the sg list. No more data comes as
the controller has only been commanded to get one block.

Signed-off-by: Terry Barnaby 
Acked-by: Ludovic Desroches 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: core: Fix bit width test failing on old eMMC cards

2013-05-08T03:08:25+00:00

commit 836dc2fe89c968c10cada87e0dfae6626f8f9da3 upstream.

PARTITION_SUPPORT needs to be set before doing the compare on version
number so the bit width test does not get invalid data.  Before this
patch, a Sandisk iNAND eMMC card would detect 1-bit width although
the hardware supports 4-bit.

Only affects old emmc devices - pre 4.4 devices.

Reported-by: Elad Yi 
Signed-off-by: Philip Rakity 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: at91/avr32/atmel-mci: fix DMA-channel leak on module unload

2013-05-08T03:08:24+00:00

commit 91cf54feecf815bec0b6a8d6d9dbd0e219f2f2cc upstream.

Fix regression introduced by commit 796211b7953 ("mmc: atmel-mci: add
pdc support and runtime capabilities detection") which removed the need
for CONFIG_MMC_ATMELMCI_DMA but kept the Kconfig-entry as well as the
compile guards around dma_release_channel() in remove(). Consequently,
DMA is always enabled (if supported), but the DMA-channel is not
released on module unload unless the DMA-config option is selected.

Remove the no longer used CONFIG_MMC_ATMELMCI_DMA option completely.

Signed-off-by: Johan Hovold 
Acked-by: Ludovic Desroches 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

ixgbe: fix EICR write in ixgbe_msix_other

2013-05-08T03:08:24+00:00

commit d87d830720a1446403ed38bfc2da268be0d356d1 upstream.

Previously, the ixgbe_msix_other was writing the full 32bits of the set
interrupts, instead of only the ones which the ixgbe_msix_other is
handling. This resulted in a loss of performance when the X540's PPS feature is
enabled due to sometimes clearing queue interrupts which resulted in the driver
not getting the interrupt for cleaning the q_vector rings often enough. The fix
is to simply mask the lower 16bits off so that this handler does not write them
in the EICR, which causes them to remain high and be properly handled by the
clean_rings interrupt routine as normal.

Signed-off-by: Jacob Keller 
Tested-by: Phil Schmitt 
Signed-off-by: Jeff Kirsher 
Signed-off-by: Greg Kroah-Hartman

MD: ignore discard request for hard disks of hybid raid1/raid10 array

2013-05-08T03:08:23+00:00

commit 32f9f570d04461a41bdcd5c1d93b41ebc5ce182a upstream.

In SSD/hard disk hybid storage, discard request should be ignored for hard
disk. We used to be doing this way, but the unplug path forgets it.

This is suitable for stable tree since v3.6.

Reported-and-tested-by: Markus 
Signed-off-by: Shaohua Li 
Signed-off-by: NeilBrown 
Signed-off-by: Greg Kroah-Hartman

md: bad block list should default to disabled.

2013-05-08T03:08:23+00:00

commit 486adf72ccc0c235754923d47a2270c5dcb0c98b upstream.

Maintenance of a bad-block-list currently defaults to 'enabled'
and is then disabled when it cannot be supported.
This is backwards and causes problem for dm-raid which didn't know
to disable it.

So fix the defaults, and only enabled for v1.x metadata which
explicitly has bad blocks enabled.

The problem with dm-raid has been present since badblock support was
added in v3.1, so this patch is suitable for any -stable from 3.1
onwards.

Reported-by: Jonathan Brassow 
Signed-off-by: NeilBrown 
Signed-off-by: Greg Kroah-Hartman

sata_highbank: Rename proc_name to the module name

2013-05-08T03:08:22+00:00

commit 2cc1144a31f76d4a9fb48bec5d6ba1359f980813 upstream.

mkinitrd looks at /sys/class/scsi_host/host$hostnum/proc_name to find
the module name of a disk driver. Current name is "highbank-ahci" but
the module is "sata_highbank". Rename it to match the module name.

Signed-off-by: Robert Richter 
Cc: Rob Herring 
Cc: Alexander Graf 
Signed-off-by: Jeff Garzik 
Signed-off-by: Greg Kroah-Hartman

ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points

2013-05-08T03:08:22+00:00

commit 94a409319561ec1847fd9bf996a2d5843ad00932 upstream.

Commit 4ae46be "Thermal: Introduce thermal_zone_trip_update()"
introduced a regression causing the fan to be always on even when
the system is idle.

My original idea in that commit is that:
 - when the current temperature is above the trip point,
   keep the fan on, even if the temperature is dropping.
 - when the current temperature is below the trip point,
   turn on the fan when the temperature is raising,
   turn off the fan when the temperature is dropping.

But this is what the code actually does:
 - when the current temperature is above the trip point,
   the fan keeps on.
 - when the current temperature is below the trip point,
   the fan is always on because thermal_get_trend()
   in driver/acpi/thermal.c returns THERMAL_TREND_RAISING.
Thus the fan keeps running even if the system is idle.

Fix this in drivers/acpi/thermal.c.

[rjw: Changelog]
References: https://bugzilla.kernel.org/show_bug.cgi?id=56591
References: https://bugzilla.kernel.org/show_bug.cgi?id=56601
References: https://bugzilla.kernel.org/show_bug.cgi?id=50041#c45
Signed-off-by: Zhang Rui 
Tested-by: Matthias 
Tested-by: Ville Syrjälä 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Greg Kroah-Hartman

ACPI: Fix wrong parameter passed to memblock_reserve

2013-05-08T03:08:22+00:00

commit a6432ded299726f123b93d0132fead200551535c upstream.

Commit 53aac44 (ACPI: Store valid ACPI tables passed via early initrd
in reserved memblock areas) introduced acpi_initrd_override() that
passes a wrong value as the second argument to memblock_reserve().

Namely, the second argument of memblock_reserve() is the size of the
region, not the address of the top of it, so make
acpi_initrd_override() pass the size in there as appropriate.

[rjw: Changelog]
Signed-off-by: Wang YanQing 
Acked-by: Yinghai Lu 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Greg Kroah-Hartman