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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
n_gsm: gsm_data_alloc buffer allocation could fail and it is not being checked
n_gsm: Fix message length handling when building header
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
Revert "USB: gadget: Allow function access to device ID data during bind()"
USB: misc: uss720.c: add another vendor/product ID
USB: usb-storage: unusual_devs entry for the Samsung YP-CP3
USB: gadget: Remove suspended sysfs file before freeing cdev
USB: core: Add input prompt and help text for USB_OTG config
USB: ftdi_sio: Add D.O.Tec PID
xhci: Fix issue with port array setup and buggy hosts.
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This patch changes the default initial receive window to 10 mss
(defined constant). The default window is limited to the maximum
of 10*1460 and 2*mss (when mss > 1460).
draft-ietf-tcpm-initcwnd-00 is a proposal to the IETF that recommends
increasing TCP's initial congestion window to 10 mss or about 15KB.
Leading up to this proposal were several large-scale live Internet
experiments with an initial congestion window of 10 mss (IW10), where
we showed that the average latency of HTTP responses improved by
approximately 10%. This was accompanied by a slight increase in
retransmission rate (0.5%), most of which is coming from applications
opening multiple simultaneous connections. To understand the extreme
worst case scenarios, and fairness issues (IW10 versus IW3), we further
conducted controlled testbed experiments. We came away finding minimal
negative impact even under low link bandwidths (dial-ups) and small
buffers. These results are extremely encouraging to adopting IW10.
However, an initial congestion window of 10 mss is useless unless a TCP
receiver advertises an initial receive window of at least 10 mss.
Fortunately, in the large-scale Internet experiments we found that most
widely used operating systems advertised large initial receive windows
of 64KB, allowing us to experiment with a wide range of initial
congestion windows. Linux systems were among the few exceptions that
advertised a small receive window of 6KB. The purpose of this patch is
to fix this shortcoming.
References:
1. A comprehensive list of all IW10 references to date.
http://code.google.com/speed/protocols/tcpm-IW10.html
2. Paper describing results from large-scale Internet experiments with IW10.
http://ccr.sigcomm.org/drupal/?q=node/621
3. Controlled testbed experiments under worst case scenarios and a
fairness study.
http://www.ietf.org/proceedings/79/slides/tcpm-0.pdf
4. Raw test data from testbed experiments (Linux senders/receivers)
with initial congestion and receive windows of both 10 mss.
http://research.csc.ncsu.edu/netsrv/?q=content/iw10
5. Internet-Draft. Increasing TCP's Initial Window.
https://datatracker.ietf.org/doc/draft-ietf-tcpm-initcwnd/
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Here is a respin of patch.
I'll send a short patch to make SFQ more fair in presence of large
packets as well.
Thanks
[PATCH v3 net-next-2.6] net_sched: sch_sfq: better struct layouts
This patch shrinks sizeof(struct sfq_sched_data)
from 0x14f8 (or more if spinlocks are bigger) to 0x1180 bytes, and
reduce text size as well.
text data bss dec hex filename
4821 152 0 4973 136d old/net/sched/sch_sfq.o
4627 136 0 4763 129b new/net/sched/sch_sfq.o
All data for a slot/flow is now grouped in a compact and cache friendly
structure, instead of being spreaded in many different points.
struct sfq_slot {
struct sk_buff *skblist_next;
struct sk_buff *skblist_prev;
sfq_index qlen; /* number of skbs in skblist */
sfq_index next; /* next slot in sfq chain */
struct sfq_head dep; /* anchor in dep[] chains */
unsigned short hash; /* hash value (index in ht[]) */
short allot; /* credit for this slot */
};
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Jarek Poplawski <jarkao2@gmail.com>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: handle partial result from get_user_pages
ceph: mark user pages dirty on direct-io reads
ceph: fix null pointer dereference in ceph_init_dentry for nfs reexport
ceph: fix direct-io on non-page-aligned buffers
ceph: fix msgr_init error path
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.. caused by a missing semi-colon, introduced in commit 0fc13c8995cd
("cciss: fix cciss_revalidate panic").
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Thiago Farina <tfransosi@gmail.com>
Cc: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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On resume, we were attemping to unblank the displays before the
timing and plls had be reprogrammed which led to atom timeouts
waiting for things that are not yet programmed. Re-program
the mode first, then reset the dpms state.
This fixes the infamous atombios timeouts on resume.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This fixes module reloading and resume as the gfx block seems to
be left in a bad state in some cases.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Only reset the grbm blocks, srbm tends to lock the GPU
if not done properly and in most cases is not necessary.
Also, no need to call asic init after reset the grbm blocks.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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If the TPA6130 is compiled as module the id and power_gpio values are
arbitrary at module probing time since the rx51_tpa6130a2_data was marked as
__initdata. Fix this by using __initdata_or_module. Then __initdata is
defined only if the kernel is built without CONFIG_MODULES and omitted
otherwise.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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After commit ed919b0 "mmc: sdio: fix runtime PM anomalies by introducing
MMC_CAP_POWER_OFF_CARD" it is required to specify MMC_CAP_POWER_OFF_CARD
to have runtime PM support. As the wl1251 driver expects card to be
powered down when it's not used, wifi will no longer work after interface
is brought down at least once without functioning runtime PM.
Fix this by declaring MMC_CAP_POWER_OFF_CARD for MMC3.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This patch adds omap_reserve functionality to board-omap4panda.c.
Helps in the reserving boot time memory in SDRAM, used here for
framebuffer allocation.
This patch is in similar lines to commit id 71ee7dad9b6991, from
Russell king
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Raghuveer Murthy <raghuveer.murthy@ti.com>
[tony@atomide.com: fixed to be before .map_io as pointed out by Russell King]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Register TWL6030 PWM, which is used as charging LED
Signed-off-by: Hemanth V <hemanthv@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Register BH1780GLI Ambient light sensor, which is an I2C device
for 4430SDP board.
Signed-off-by: Hemanth V <hemanthv@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Make sure the LED is turned off at boot time, and configure the GPIO LED
device as active low.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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gpio_direction_output() has a value argument, there's no need to call
gpio_set_value() explicitly right after.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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No need to call this early from init_irq. Also recent changes
initialize GPIO now later, so calling gpio_request from init_irq
will make it fail.
While at it, also remove the unnecessary EXPORT_SYMBOL.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Commit 72f381ba056 (omap3: Remove VMMC2 regulator on IGEP v2)
removed an unused regulator entry, but left the second MMC channel
(used by the Libertas WLAN module) without link to power regulator.
This causes the SDIO module to fail being detected.
This patch adds the two regulators that actually feed the WLAN module
(1v8 from the TWL4030 VIO LDO, and a fixed 3v3). With that patch, the
second channel is properly detected. Details of the power supply
implementation were kindly provided by Enric Balletbo i Serra.
Also change vmmc1 to use symbolic names instead of direct device
reference.
Tested on an IGEPv2 Rev-B.
Signed-off-by: Marc Zyngier <maz@misterjones.org>
Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Patch "OMAP2xxx: hwmod: add I2C hwmods for OMAP2420, 2430"
in linux-next as of 20101203 introduced the following build
warning - fix this by removing the stray i2c_dev_attr.
arch/arm/mach-omap2/omap_hwmod_2430_data.c:483: warning: 'i2c_dev_attr' defined but not used
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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To support tvout on rx51,added Intilization data,
tvout as display device and enabled venc through gpio
on rx51
Signed-off-by: Srikar <ext-srikar.1.bhavanarayana@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Upcoming ASoC core and tlv320aic3x changes makes possible to take b part of
TLV320AIC34 into use on RX51/N900. Prepare to this by adding virtual supplies
and platform data for b part of the codec.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Remove second tlv320aic3x.h inclusion that came along the commit f0fba2a
"ASoC: multi-component - ASoC Multi-Component Support".
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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There is no MFD config option, MFD_SUPPORT should be selected instead.
This will prevent build errors when trying out different configurations.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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clk_get() return value should be checked with IS_ERR(). Furthermore,
clocks should be put and disabled properly.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This reverts commit 541cc966915b6756e54c20eebe60ae957afdb537.
Wei Yonjun reported this caused a regression against Intel VGA hotplug
on his G33 hw.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Convert DMA library into DMA platform driver and make use of
platform data provided by hwmod data base for OMAP2+ onwards.
For OMAP1 processors, the DMA driver in mach-omap uses resource
structures for getting platform data.
Thanks to Tony Lindgren <tony@atomide.com> for fixing various
omap1 issues and testing the same on OSK5912 board.
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Prepare OMAP2+ DMA to use hwmod infrastructure so that DMA can register
as platform device.
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Implement OMAP1 DMA as platform device and add support for
registering through platform device layer using resource
structures.
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Add OMAP4 DMA hwmod data. In addition to original dma hwmod data,
the following changes are added.
1. DMA device attributes structure is introduced for diffenrenciating
OMAP cpu's based on DMA features.
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Add OMAP3 DMA hwmod data
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Add OMAP2430 DMA hwmod data and also add required
DMA device attributes.
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Add OMAP2420 DMA hwmod data and also add required
DMA device attributes.
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Implement errata handling to use flags instead of cpu_is_* and
cpu_class_* in the code.
The errata flags are initialized at init time and during runtime we are
using the errata variable (via the IS_DMA_ERRATA macro) to execute the
required errata workaround.
Reused errata handling patch from: Peter Ujfalusi
<peter.ujfalusi@nokia.com>
https://patchwork.kernel.org/patch/231191/
Changes to above patch:
1. Changes are done for converting all the existing errata work arounds
to use this feature.
2. Detailed description for each errata is added.
3. Fixed bug in SET_DMA_ERRATA macro
4. Bit shifting in macro definitions are replaced with BIT() macro
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Prepare DMA library to get converted into DMA driver using platform
device model and hwmod infrastucture(for omap2+, resource structures
for omap1)
The low level read/write macros are replaced with static inline
functions and register offsets are handled through static register
offset tables mapped through enumeration constants.
These low level read/write functions along with static register offset
tables will be moved to respective mach-omap dma files in the later
patches of this series.
There are no functionality changes with these changes except change in
logic for handling 16bit registers of OMAP1.
Signed-off-by: G, Manjunath Kondaiah <manjugk@ti.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The convention for omap device naming is omap_XXX.
Rename the device and driver name in order to stick
to this naming convention.
Change device name in clock nodes as well.
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Ben Dooks <ben-i2c@fluff.org>
Acked-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Fix following compilation warning:
arch/arm/mach-omap1/pm_bus.c: In function 'omap1_pm_runtime_resume':
arch/arm/mach-omap1/pm_bus.c:51: warning: unused variable 'ret'
Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Patch fix following compilation warning:
arch/arm/mach-omap1/board-htcherald.c:442:
warning: large integer implicitly truncated to unsigned type
Hopefully this is just a typo.
Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The naming convention for omap_device is omap_XXX.
Rename the device and driver name in order to stick
to this naming convention.
Remove the hs prefix that is implicit for every OMAP uarts.
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Govindraj Raja <govindraj.raja@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Without this, we attempt the handover too late, the firmware fb
might be accessing the chip simultaneously to us re-initializing
various parts of it, which might frighten babies or cause all sort
of nasty psychologic trauma to kitten.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[danvet: add cc: stable, forward ported and compile-fixed for X86]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[airlied: move to even earlier in module load.]
Signed-off-by: Dave Airlie <airlied@redhat.com>
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master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
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When deploying SFQ/IFB here at work, I found the allot management was
pretty wrong in sfq, even changing allot from short to int...
We should init allot for each new flow, not using a previous value found
in slot.
Before patch, I saw bursts of several packets per flow, apparently
denying the default "quantum 1514" limit I had on my SFQ class.
class sfq 11:1 parent 11:
(dropped 0, overlimits 0 requeues 0)
backlog 0b 7p requeues 0
allot 11546
class sfq 11:46 parent 11:
(dropped 0, overlimits 0 requeues 0)
backlog 0b 1p requeues 0
allot -23873
class sfq 11:78 parent 11:
(dropped 0, overlimits 0 requeues 0)
backlog 0b 5p requeues 0
allot 11393
After patch, better fairness among each flow, allot limit being
respected, allot is positive :
class sfq 11:e parent 11:
(dropped 0, overlimits 0 requeues 86)
backlog 0b 3p requeues 86
allot 596
class sfq 11:94 parent 11:
(dropped 0, overlimits 0 requeues 0)
backlog 0b 3p requeues 0
allot 1468
class sfq 11:a4 parent 11:
(dropped 0, overlimits 0 requeues 0)
backlog 0b 4p requeues 0
allot 650
class sfq 11:bb parent 11:
(dropped 0, overlimits 0 requeues 0)
backlog 0b 3p requeues 0
allot 596
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We currently return for each active SFQ slot the number of packets in
queue. We can also give number of bytes accounted for these packets.
tc -s class show dev ifb0
Before patch :
class sfq 11:3d9 parent 11:
(dropped 0, overlimits 0 requeues 0)
backlog 0b 3p requeues 0
allot 1266
After patch :
class sfq 11:3e4 parent 11:
(dropped 0, overlimits 0 requeues 0)
backlog 4380b 3p requeues 0
allot 1212
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* msm-core: (28 commits)
msm: initial framebuffer support
msm: add handling for clocks tagged as CLK_MINMAX
msm: trout: change name of pmdh_clk to mddi_clk
msm: add CLK_MINMAX to pmdh_clk
msm: trout: add gpio_to_irq
msm: iommu: Use the correct memory allocation flag
msm_serial: Remove redundant unlikely()
msm: iommu: Miscellaneous code cleanup
msm: iommu: Support cache-coherent memory access
msm: iommu: Definitions for extended memory attributes
msm: iommu: Kconfig dependency for the IOMMU API
msm: iommu: Check if device is already attached
msm: iommu: Kconfig item for cacheable page tables
msm: iommu: Don't flush page tables if no devices attached
msm: iommu: Mark functions with the right section names
msm: iommu: Support for the 2nd GFX core's IOMMU
msm: iommu: Revise GFX2D0 IOMMU contexts and M2V mappings
msm: iommu: Revise GFX3D IOMMU contexts and M2V mappings
msm: iommu: Use more consistent naming in platform data
msm: iomap: Addresses and IRQs for 2nd GFX core IOMMU
...
* msm-mmc: (33 commits)
mmc: msm_sdcc: Check for only DATA_END interrupt to end a request
mmc: msm_sdcc: Fix bug in PIO mode when data size is not word aligned
mmc: msm_sdcc: Reset SDCC in case of data transfer errors
mmc: msm_sdcc: Add prog done interrupt support
mmc: msm_sdcc: Fix possible circular locking dependency warning
msm: initial framebuffer support
msm: add handling for clocks tagged as CLK_MINMAX
msm: trout: change name of pmdh_clk to mddi_clk
msm: add CLK_MINMAX to pmdh_clk
msm: trout: add gpio_to_irq
msm: iommu: Use the correct memory allocation flag
msm_serial: Remove redundant unlikely()
msm: iommu: Miscellaneous code cleanup
msm: iommu: Support cache-coherent memory access
msm: iommu: Definitions for extended memory attributes
msm: iommu: Kconfig dependency for the IOMMU API
msm: iommu: Check if device is already attached
msm: iommu: Kconfig item for cacheable page tables
msm: iommu: Don't flush page tables if no devices attached
msm: iommu: Mark functions with the right section names
...
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The current code checks for both DATA_END and DATA_BLK_END bits in
MCI_STATUS register and ends a request only if both are set at a time.
The hardware doesn't always set DATA_BLK_END when DATA_END is set.
But DATA_END status itself is sufficient condition from hardware that
data transfer is done and hence, check for only DATA_END interrupt in
software to end a request.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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The current code for PIO doesn't transfer whole data when data size
is not in multiple of 4 bytes. The last few bytes are not written to
the card resulting in no DATAEND interrupt from SDCC. This patch
allows data transfer for non-aligned data size in PIO mode.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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SDCC uses an asynchronous FIFOs for data synchronization (one for TX
and one for RX). For any error when DPSM (Data path state machine) is
involved the transfer is terminated with the remaining data stuck inside
FIFOs. Reset the controller in case of data errors to ensure that
any left over data in FIFOs is flushed out and DPSM is in good state.
The following problems are observed without this reset functionality -
1. After the card is removed in an unsafe way (removed when there
is an on going data transfer), the card will not be detected upon
its next insertion. This is because the controller wouldn't respond
to few initialization commands.
2. When an error occurs for a data transfer in non-DMA mode, sometimes
we get spurious PIO interrupt after the request is processed.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Enable prog done interrupt for stop command(CMD12) that is sent
after a multi-block write(CMD25). The PROG_DONE bit is set when
the card has finished its programming and is ready for next data.
After every write request the card will be polled for ready status
using CMD13. For a multi-block write(CMD25) before sending CMD13,
stop command (CMD12) will be sent. If we enable prog done interrupt
for CMD12, then CMD13 polling can be avoided. The prog done interrupt
means that the card is done with its programming and is ready for
next request.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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In the context of request processing thread, data mover lock is
acquired after the host lock. In another context, in the completion
handler of data mover the locks are acquired in the reverse order,
resulting in possible circular lock dependency warning. Hence,
schedule a tasklet to process the dma completion so as to avoid
nested locks.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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create_workqueue is deprecated. The workqueue usage does not seem to
demand any special treatment, so do not set any flags either.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Tejun Heo <tj@kernel.org>
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