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2011-07-21mmc: tmio: fix recursive spinlock, don't schedule with interrupts disabledGuennadi Liakhovetski
Calling mmc_request_done() under a spinlock with interrupts disabled leads to a recursive spin-lock on request retry path and to scheduling in atomic context. This patch fixes both these problems by moving mmc_request_done() to the scheduler workqueue. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: Added quirks for Ricoh 1180:e823 lower base clock frequencyManoj Iyer
Ricoh 1180:e823 does not recognize certain types of SD/MMC cards, as reported at http://launchpad.net/bugs/773524. Lowering the SD base clock frequency from 200Mhz to 50Mhz fixes this issue. This solution was suggest by Koji Matsumuro, Ricoh Company, Ltd. This change has no negative performance effect on standard SD cards, though it's quite possible that there will be one on UHS-1 cards. Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com> Tested-by: Daniel Manrique <daniel.manrique@canonical.com> Cc: Koji Matsumuro <matsumur@nts.ricoh.co.jp> Cc: <stable@kernel.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: omap_hsmmc: fix oops in omap_hsmmc_dma_cb()Adrian Hunter
In the case of an I/O error, the DMA will have been cleaned up in the MMC interrupt and the request structure pointer will be null. In that case, it is essential to check if the DMA is over before dereferencing host->mrq->data. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: omap_hsmmc: refactor duplicated codeAndy Shevchenko
There are a few places with the same functionality. This patch creates two functions omap_hsmmc_set_bus_width() and omap_hsmmc_set_bus_mode() to do the job. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: omap_hsmmc: fix a few bugs when setting the clock divisorAndy Shevchenko
There are two pieces of code which are similar, but not the same. Each of them contains a bug. The SYSCTL register should be read before writing to it in omap_hsmmc_context_restore() to retain the state of the reserved bits. Before setting the clock divisor and DTO bits the value from the SYSCTL register should be masked properly. We were lucky to have no problems with DTO bits. So, make sure we have clear DTO bits properly in omap_hsmmc_set_ios(). Additionally get rid of msleep(1). The actual time is rarely higher than 30us on OMAP 3630. The resulting pieces of code are refactored into the omap_hsmmc_set_clock() function. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: omap_hsmmc: introduce start_clock and re-use stop_clockAndy Shevchenko
There is similar code in two functions which enable the clock. Refactor this code to omap_hsmmc_start_clock(). Re-use omap_hsmmc_stop_clock() in omap_hsmmc_context_restore() as well. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: omap_hsmmc: split duplicate code to calc_divisor() functionAndy Shevchenko
There are two places where the same calculations are done. Let's split them into a separate function. In addition, simplify by using the DIV_ROUND_UP kernel macro. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: omap_hsmmc: move hardcoded frequency constants to definesAndy Shevchenko
Move the min and max frequency constants to the definition block in the source file. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: omap_hsmmc: correct debug report error status mnemonicsAdrian Hunter
CERR and BADA were in the wrong place and there are only 32 not 35. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Reviewed-by: Venkatraman S <svenkatr@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: block: fixed NULL pointer dereferenceJaehoon Chung
We already check for ongoing async transfers when handling discard requests, but not in mmc_blk_issue_flush(). This patch fixes that omission. Tested with an SDHCI controller and eMMC4.41. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Per Forlin <per.forlin@linaro.org> Cc: <stable@kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21mmc: documentation of mmc non-blocking request usage and design.Per Forlin
Documentation about the background and the design of mmc non-blocking. Host driver guidelines to minimize request preparation overhead. Signed-off-by: Per Forlin <per.forlin@linaro.org> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-21Merge branch 'next-samsung-devel' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/devel
2011-07-21iwlagn: remove "disable otp refresh" W/AWey-Yi Guy
Remove the "disable otp refresh" work-around, not needed anymore. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21Merge branch 'next-samsung-board' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/board
2011-07-21iwlagn: rename iwlagn_set_dynamic_keyJohannes Berg
We now have iwlagn_set_dynamic_key() and iwl_set_dynamic_key() which is confusing, rename the former to iwlagn_send_sta_key() to better reflect what it does -- it only sends a command and doesn't change driver state. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: track beacon interval sent to deviceJohannes Berg
Sometimes, when mac80211 changes the beacon interval or when it isn't yet set in mac80211 before association, the uCode will sysassert because we send it confusing RXON timing vs. PAN parameters. To fix this, track the last beacon interval sent to the device and use that in PAN parameter calculations. This fixes a bug during P2P group formation as a client (and possibly association to a regular AP) while connected to another AP. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: write iq invert register for 105/135 deviceWey-Yi Guy
For 105/135 series of devices, we need to do I/Q invert just like 2000 series devices. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: implement WoWLANJohannes Berg
Implement WoWLAN support in iwlagn. The device supports a number of wakeup triggers and can do GTK rekeying when asleep (if HW crypto is used). Unfortunately, we need to disconnect from the AP after resume since we can't yet get all the info out of the wowlan uCode to stay connected safely. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: rewrite HW cryptoJohannes Berg
As I just discovered while doing WoWLAN, HW crypto is done wrong for GTKs: they should be programmed for the AP station ID (in the managed mode case) and the HW can actually deal with multiple group keys per station as well (which is useful in IBSS RSN but that I've chosen not to use this). To fix all this, modify the way keys are sent to the device and key offsets are allocated. After these changes, key offsets are stored into the hw_key_idx which we can then track for the key lifetime, not relying on our sta_cmd array. WEP default keys get special treatment, of course. Additionally, since I had the API for it, we can now pre-fill TKIP phase 1 keys for RX now that we can obtain the P1K from mac80211, a capability I had added for WoWLAN initially. Finally, some keys simply don't need to be added into the device's key cache -- a key that won't be used for RX is only needed in the TX header, so "pretend" to have accepted any key without adding it into the device -- no need to use up key space there for it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21Merge branch 'next-samsung-cleanup' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
2011-07-21iwlagn: remove forgotten debugfs functionJohannes Berg
It seems that due to merge issues between different trees or so this function prototype wasn't removed when it should have been, do it now. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: remove un-necessary "_agn"Wey-Yi Guy
After driver split, extra _agn in priv structure is no needed, remove it. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: remove keyinfo cacheJohannes Berg
iwlagn keeps a copy of key stuff internally but never actually uses it, so remove it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: testmode fixed rate available for testmode onlyWey-Yi Guy
Move tm_fixed_rate inside CONFIG_IWLWIFI_DEVICE_SVTOOL and only available when the option is enable. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: add comment to warn about WoWLAN in resume / suspend flowsEmmanuel Grumbach
WoWLAN may need the NIC even after suspend. One should not do anything to the NIC in the bus level, since one cannot check whether WoWLAN is enabled or not. Same for resume. Add a simple comment to the code to warn about this. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: iwl_bus holds drv_data as void * instead of iwl_privEmmanuel Grumbach
The price to pay is the access to the log system. Therefore logs from bus layer are sent by dev_printk instead of IWL_XXXX. Rename bus->priv to bus->drv_data to make the separation even clearer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: simplify the bus architectureEmmanuel Grumbach
Call iwl_probe with a ready iwl_bus struct. This means that the bus layer assigns the irq, dev and iwl_bus_ops pointers to iwl_bus before giving it to iwl_probe. The device specific struct is allocated together with the common iwl_bus struct by the bus specific layer. The pointer to the aggregate struct is passed to the upper layer that holds a pointer to iwl_bus instead of an embedded iw_bus. The private data given to the PCI subsystem is now iwl_bus and not iwl_priv. Provide bus_* inliners on the way in order to simplify the syntax. Rename iwl-pci.h -> iwl-bus.h since it is bus agnostic and represent the external of the bus layer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: transport layer receives struct iwl_trans*Emmanuel Grumbach
It still holds a pointer to iwl_priv. But hopefully this will disappear at some point. Also add the multiple inclusion protection to iwl-trans.h that was forgotten. Move iwl-trans structures to iwl-trans.h Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: move iwl_prepare_card_hw to the transport layerEmmanuel Grumbach
This function is really related to the transport layer - move it. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: move more functions from the start flow to the transport layerEmmanuel Grumbach
Basically all the nic_init flow should be in the transport layer. iwl_prepare_card_hw will move to the transport too in a separate patch. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: SCD configuration for AMPDU moves to transport layerEmmanuel Grumbach
All the configurations of the HW for AMPDU are now in the transport layer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: radio sensor offset in le16 formatWey-Yi Guy
For temperature offset calibration, send radio sensor offset in le16 format Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: define valid init calibration maskWey-Yi Guy
Use the valid calibration mask for init calibration Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: remove legacy calibration commandWey-Yi Guy
IWL_PHY_CALIBRATE_DIFF_GAIN_CMD is for legacy device, remove it Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: set correct calibration flagWey-Yi Guy
Set calibration config flag for complete notification Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21iwlagn: kill iwlagn_setup_deferred_workEmmanuel Grumbach
Since iwlagn_setup_deferred_work is always called, fold it into iwl_setup_deferred_work. BT related works are setup by the new bt_setup_deferred_work lib_ops. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>
2011-07-21iwlagn: kill iwlagn_rx_handler_setupEmmanuel Grumbach
Since iwlagn_rx_handler_setup is always called, fold it into iwl_rx_handler_setup. BT related handlers are setup by the new bt_rx_handler_setup lib_ops. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>
2011-07-21iwlagn: add kick_nic API to transport layerEmmanuel Grumbach
kick_nic means to remove the RESET bit from the embedded CPU Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>
2011-07-21ARM: CPU hotplug: ensure we migrate all IRQs off a downed CPURussell King
Our selection of interrupts to consider for IRQ migration is sub- standard. We were potentially including per-CPU interrupts in our migration strategy, but omitting chained interrupts. This caused some interrupts to remain on a downed CPU. We were also trying to migrate interrupts which were not migratable, resulting in an OOPS. Instead, iterate over all interrupts, skipping per-CPU interrupts or interrupts whose affinity does not include the downed CPU, and attempt to set the affinity for every one else if their chip implements irq_set_affinity(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21ARM: CPU hotplug: pass in proper affinity mask on IRQ migrationRussell King
Now that the GIC takes care of selecting a target interrupt from the affinity mask, we don't need all this complexity in the core code anymore. Just detect when we need to break affinity. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21ARM: GIC: avoid routing interrupts to offline CPUsRussell King
The irq_set_affinity() method can be called with masks which include offline CPUs. This allows offline CPUs to have interrupts routed to them by writing to /proc/irq/*/smp_affinity after hotplug has taken a CPU offline. Fix this by ensuring that we select a target CPU present in both the required affinity and the online CPU mask. Ensure that we return IRQ_SET_MASK_OK (which happens to be 0) on success to ensure generic code copies the new mask into the irq_data structure. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21ARM: CPU hotplug: fix abuse of irqdesc->nodeRussell King
irqdesc's node member is supposed to mark the numa node number for the interrupt. Our use of it is non-standard. Remove this, replacing the functionality with a test of the affinity mask. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21ALSA: hda - Remove a superfluous argument of via_auto_init_output()Takashi Iwai
"force" argument is always true, so let's strip it off. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-21HID: hid-multitouch: add one new multitouch device's VID/PIDice chien
This patch adds support for the CSR panel built by XAT. Signed-off-by: Ice Chien <ice.chien@accupoint.com.tw> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-21treewide: fix potentially dangerous trailing ';' in #defined values/expressionsPhil Carmody
All these are instances of #define NAME value; or #define NAME(params_opt) value; These of course fail to build when used in contexts like if(foo $OP NAME) while(bar $OP NAME) and may silently generate the wrong code in contexts such as foo = NAME + 1; /* foo = value; + 1; */ bar = NAME - 1; /* bar = value; - 1; */ baz = NAME & quux; /* baz = value; & quux; */ Reported on comp.lang.c, Message-ID: <ab0d55fe-25e5-482b-811e-c475aa6065c3@c29g2000yqd.googlegroups.com> Initial analysis of the dangers provided by Keith Thompson in that thread. There are many more instances of more complicated macros having unnecessary trailing semicolons, but this pile seems to be all of the cases of simple values suffering from the problem. (Thus things that are likely to be found in one of the contexts above, more complicated ones aren't.) Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-21uwb: Fix misspelling of neighbourhood in commentJesper Juhl
In drivers/uwb/uwbd.c, the word 'neighbourhood' is misspelled as 'neighboorhood' in a comment. Fix that. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-21net, netfilter: Remove redundant goto in ebt_ulog_packetJesper Juhl
In net/bridge/netfilter/ebt_ulog.c:ebt_ulog_packet() the 'goto unlock' before the 'alloc_failure' label is completely redundant. This patch removes it. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-21HID: prodikeys: remove a redundant forward declaration of struct pcmidi_sndAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-21HID: prodikeys: make needlessly global symbols staticAxel Lin
The following symbols are not referenced outside this file so there's no need for it to be in the global name space. pcmidi_sustained_note_release init_sustain_timers stop_sustain_timers pcmidi_handle_report pcmidi_setup_extra_keys pcmidi_snd_initialise pcmidi_snd_terminate Make them static. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-21ALSA: hda - Fix indep-HP path (de-)activation for VT1708* codecsTakashi Iwai
This patch fixes non-working indep-HP control on VT1708* codecs. The problems are that via_independent_hp_put() wasn't fixed to follow the recent change of three HP paths, and hp_indep_path didn't contain the amp nids of mixer elements. Together with the fixes, a few code clean-ups are done. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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