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2010-03-07mfd: Add a data argument to the WM8350 IRQ free functionMark Brown4-16/+16
To better match genirq. Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Samuel Ortiz <[email protected]>
2010-03-07mfd: Correct use after free for t7l66xbJulia Lawall1-1/+1
The structure t7l66xb should not be freed before the subsequent references to its fields in the arguments to clk_put. Furthermore, this structure is allocated near the beginning of the function, and a goto to the label err_noirq appears after a successful allocation, so it would seem that the kfree should be moved down below this label. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,e; identifier f; iterator I; statement S; @@ *kfree(x); ... when != &x when != x = e when != I(x,...) S *x->f // </smpl> Signed-off-by: Julia Lawall <[email protected]>
2010-03-07mfd: Use resouce_size for tc6393xbH Hartley Sweeten1-1/+1
Use resource_size() for ioremap. Signed-off-by: H Hartley Sweeten <[email protected]> Cc: Ian Molton <[email protected]> Signed-off-by: Samuel Ortiz <[email protected]>
2010-03-07mfd: Use resource_size() for t7l66xbH Hartley Sweeten1-1/+1
Use resource_size() for ioremap. Signed-off-by: H Hartley Sweeten <[email protected]> Cc: Ian Molton <[email protected]> Signed-off-by: Samuel Ortiz <[email protected]>
2010-03-07mfd: Use resource_size() in sm501H Hartley Sweeten1-4/+3
The requested memory region is smaller than the actual ioremap(). Use resource_size() to get the correct size. Signed-off-by: H Hartley Sweeten <[email protected]> Cc: Ben Dooks <[email protected]> Signed-off-by: Samuel Ortiz <[email protected]>
2010-03-07Merge branch 'next' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Fix cast warning in pcc driver. [CPUFREQ] Processor Clocking Control interface driver
2010-03-07USB: remove unused defintion of struct usb_device_statusDmitry Torokhov1-5/+0
The recent rework of /proc/bus/usb/devices polling support made this structure unused so let's remove it. Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-07Revert "lib: build list_sort() only if needed"Linus Torvalds1-1/+0
This reverts commit a069c266ae5fdfbf5b4aecf2c672413aa33b2504. It turns ou that not only was it missing a case (XFS) that needed it, but perhaps more importantly, people sometimes want to enable new modules that they hadn't had enabled before, and if such a module uses list_sort(), it can't easily be inserted any more. So rather than add a "select LIST_SORT" to the XFS case, just leave it compiled in. It's not all _that_ big, after all, and the inconvenience isn't worth it. Requested-by: Alexey Dobriyan <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Don Mullis <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Dave Chinner <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-07[WATCHDOG] drivers/watchdog/wdt.c:wdt_ioctl(): make `ident' non-staticAndrew Morton2-2/+2
Making this instance static exposes the code to SMP races, etc. Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2010-03-07[WATCHDOG] change reboot_notifier to platform-shutdown method.Wim Van Sebroeck2-56/+21
Platform device drivers can use the .shutdown method to handle soft shutdown's instead of reboot_notifier's. Signed-off-by: Wim Van Sebroeck <[email protected]>
2010-03-07[WATCHDOG] watchdog_info constifyWim Van Sebroeck51-52/+52
make the watchdog_info struct const where possible. Signed-off-by: Wim Van Sebroeck <[email protected]>
2010-03-06usbfs: fix deadlock on 'usbfs_mutex', clean up pollLinus Torvalds1-42/+24
The caller of usbfs_conn_disc_event() in some cases (but not always) already holds usbfs_mutex, so trying to protect the event counter with that lock causes nasty deadlocks. The problem was introduced by commit 554f76962d ("USB: Remove BKL from poll()") when the BLK protection was turned into using the mutex instead. So fix this by using an atomic variable instead. And while we're at it, get rid of the atrocious naming of said variable and the waitqueue it is associated with. This also cleans up the unnecessary locking in the poll routine, since the whole point of how the pollwait table works is that you can just add yourself to the waiting list, and then check the condition you're waiting for afterwards - avoiding all races. It also gets rid of the unnecessary dynamic allocation of the device status that just contained a single word. We should use f_version for this, as Dmitry Torokhov points out. That simplifies everything further. Reported-and-tested-by: Jeff Chua <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Acked-by: Alan Stern <[email protected]> Cc: Oliver Neukum <[email protected]> Cc: Dmitry Torokhov <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06parisc: remove trailing space in messagesFrans Pop2-2/+2
Signed-off-by: Frans Pop <[email protected]> Cc: [email protected] Cc: Kyle McMartin <[email protected]> Cc: Helge Deller <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2010-03-06PM: Provide generic subsystem-level callbacksRafael J. Wysocki2-0/+234
There are subsystems whose power management callbacks only need to invoke the callbacks provided by device drivers. Still, their system sleep PM callbacks should play well with the runtime PM callbacks, so that devices suspended at run time can be left in that state for a system sleep transition. Provide a set of generic PM callbacks for such subsystems and define convenience macros for populating dev_pm_ops structures. Signed-off-by: Rafael J. Wysocki <[email protected]>
2010-03-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dmLinus Torvalds13-133/+157
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: dm raid1: fix deadlock when suspending failed device dm: eliminate some holes data structures dm ioctl: introduce flag indicating uevent was generated dm: free dm_io before bio_endio not after dm table: remove unused dm_get_device range parameters dm ioctl: only issue uevent on resume if state changed dm raid1: always return error if all legs fail dm mpath: refactor pg_init dm mpath: wait for pg_init completion when suspending dm mpath: hold io until all pg_inits completed dm mpath: avoid storing private suspended state dm: document when snapshot has finished merging dm table: remove dm_get from dm_table_get_md dm mpath: skip activate_path for failed paths dm mpath: pass struct pgpath to pg init done
2010-03-06Merge branch 'hwmon-for-linus' of ↵Linus Torvalds12-1484/+2923
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: (23 commits) hwmon: Remove the deprecated adt7473 driver hwmon: Fix off-by-one kind values hwmon: (tmp421) Fix temperature conversions hwmon: (tmp421) Restore missing inputs hwmon: Driver for Andigilog aSC7621 family monitoring chips hwmon: (adt7411) Improve locking hwmon: Add driver for ADT7411 voltage and temperature sensor hwmon: (w83793) Add watchdog functionality hwmon: (g760a) Make rpm_from_cnt static hwmon: (it87) Validate auto pwm settings hwmon: (it87) Add support for old automatic fan speed control hwmon: (it87) Drop dead web links in documentation hwmon: (it87) Add an entry in MAINTAINERS hwmon: (it87) Use strict_strtol instead of simple_strtol hwmon: (it87) Fix many checkpatch errors and warnings hwmon: (it87) Add support for beep on alarm hwmon: (it87) Create vid attributes by group hwmon: (it87) Refactor attributes creation and removal hwmon: (it87) Expose the PWM/temperature mappings hwmon: (it87) Display fan outputs in automatic mode as such ...
2010-03-06Merge git://git.infradead.org/ubi-2.6Linus Torvalds5-87/+198
* git://git.infradead.org/ubi-2.6: UBI: add write checking UBI: simplify debugging return codes UBI: fix attaching error path UBI: support attaching by MTD character device name UBI: mark few variables as __initdata
2010-03-06gpio: introduce it8761e_gpio driver for IT8761E Super I/O chipDenis Turischev3-0/+238
Signed-off-by: Denis Turischev <[email protected]> Cc: David Brownell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06gpio: cs5535-gpio: fix input directionBen Gardner1-1/+3
The cs5535-gpio driver's get() function was returning the output value. This means that the GPIO pins would never work as an input, even if configured as an input. The driver should return the READ_BACK value, which is the sensed line value. To make that work when the direction is 'output', INPUT_ENABLE needs to be set. In addition, the driver was not disabling OUTPUT_ENABLE when the direction is set to 'input'. That would cause the GPIO to continue to drive the pin if the direction was ever set to output. This issue was noticed when attempting to use the gpiolib driver to read an external input. I had previously been using the char/cs5535-gpio driver. Signed-off-by: Ben Gardner <[email protected]> Acked-by: Andres Salomon <[email protected]> Cc: Andrew Morton <[email protected]> Cc: David Brownell <[email protected]> Cc: Mark Brown <[email protected]> Cc: <[email protected]> [2.6.33.x] Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06gpio: pca953x.c: add interrupt handling capabilityMarc Zyngier2-12/+244
Most of the GPIO expanders controlled by the pca953x driver are able to report changes on the input pins through an *INT pin. This patch implements the irq_chip functionality (edge detection only). The driver has been tested on an Arcom Zeus. [[email protected]: the compiler does inlining for us nowadays] Signed-off-by: Marc Zyngier <[email protected]> Cc: Eric Miao <[email protected]> Cc: Haojian Zhuang <[email protected]> Cc: David Brownell <[email protected]> Cc: Nate Case <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06timbgpio: add support for interrupt triggering on both flanksRichard Röjfors1-9/+23
Introduce support for triggering interrupts on both rising and falling edge. This feature requires version 3 or newer of the IP, a version check is done when triggering on both edges is requested. Signed-off-by: Richard Röjfors <[email protected]> Cc: David Brownell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06gpio: introduce gpio_request_one() and friendsEric Miao1-0/+58
gpio_request() without initial configuration of the GPIO is normally useless, introduce gpio_request_one() together with GPIOF_ flags for input/output direction and initial output level. gpio_{request,free}_array() for multiple GPIOs. Signed-off-by: Eric Miao <[email protected]> Cc: David Brownell <[email protected]> Cc: Ben Nizette <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06gpio: add driver for MAX7300 I2C GPIO extenderWolfram Sang5-260/+386
Add the MAX7300-I2C variant of the MAX7301-SPI version. Both chips share the same core logic, so the generic part of the in-kernel SPI-driver is refactored into a generic part. The I2C and SPI specific funtions are then wrapped into seperate drivers picking up the generic part. Signed-off-by: Wolfram Sang <[email protected]> Cc: Juergen Beisert <[email protected]> Cc: David Brownell <[email protected]> Cc: Jean Delvare <[email protected]> Cc: Anton Vorontsov <[email protected]> Cc: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc-coh901331: fix braces in resume codeJames Hogan1-2/+3
The else part of the if statement is indented but does not have braces around it. It clearly should since it uses clk_enable and clk_disable which are supposed to balance. Signed-off-by: James Hogan <[email protected]> Acked-by: Linus Walleij <[email protected]> Acked-by: Alessandro Zummo <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc/mc13783: implement alarmUwe Kleine-König1-13/+172
Signed-off-by: Uwe Kleine-König <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Valentin Longchamp <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Samuel Ortiz <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Luotao Fu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc/mc13783: protect rtc {,un}registration by mc13783 lockUwe Kleine-König1-11/+14
This is to protect from interrupt handlers using an unregistered rtc device. To assert that the reset irq is considered now before the rtc is registered the corresponding status is checked before. Signed-off-by: Uwe Kleine-König <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Valentin Longchamp <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Samuel Ortiz <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Luotao Fu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mfd/mc13783: new function reading irq mask and status registerUwe Kleine-König1-0/+35
The driver for the mc13783 rtc needs to know if the TODA irq is pending. Instead of tracking in the rtc driver if the irq is enabled provide that information, too. Signed-off-by: Uwe Kleine-König <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Valentin Longchamp <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Samuel Ortiz <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Luotao Fu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc/mc13783: don't use deprecated mc13783 API callsUwe Kleine-König1-5/+5
mc13783_ackirq, mc13783_unmask and mc13783_mask are deprecated, use the drop in replacements with the nicer names. Signed-off-by: Uwe Kleine-König <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Valentin Longchamp <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Samuel Ortiz <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Luotao Fu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06input/mc13783-ts: don't use deprecated mc13783 API callsUwe Kleine-König1-2/+2
mc13783_ackirq is deprecated, use the drop in replacement mc13783_irq_ack. Signed-off-by: Uwe Kleine-König <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Valentin Longchamp <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Samuel Ortiz <[email protected]> Acked-by: Dmitry Torokhov <[email protected]> Cc: Luotao Fu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mc13783: rename mc13783_{{un,}mask,ack_irq} to have a mc13783_irq prefixUwe Kleine-König1-19/+19
In the source file group these functions together. The mc13783 header file provides fallback implementations for the old names to prevent build failures. When all users of the old names are fixed to use the new names these can go away. Signed-off-by: Uwe Kleine-König <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Paul Gortmaker <[email protected]> Cc: Valentin Longchamp <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Samuel Ortiz <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Luotao Fu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc-core: fix memory leakAaro Koskinen1-0/+1
The idr should be destroyed when the module is unloaded. Found with kmemleak. Signed-off-by: Aaro Koskinen <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: stable <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc-twl: Storage class should be before const qualifierTobias Klauser1-2/+2
The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc-at91sam9: Correct size given to memsetJulia Lawall1-1/+1
Memset should be given the size of the structure, not the size of the pointer. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; T *x; expression E; @@ memset(x, E, sizeof( + * x)) // </smpl> Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Alessandro Zummo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc-pcf2123: move pcf2123_remove to .devexit.textUwe Kleine-König1-1/+1
The function pcf2123_remove is used only wrapped by __devexit_p so define it using __devexit. Signed-off-by: Uwe Kleine-König <[email protected]> Signed-off-by: Alessandro Zummo <[email protected]> Cc: Christian Pellegrin <[email protected]> Cc: Chris Verges <[email protected]> Cc: Paul Gortmaker <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc-ep93xx.c: cleanup probe/remove routinesH Hartley Sweeten1-43/+28
Fix issue with rtc device not getting unregistered in probe error path. Use the devres managed resource functions in the probe routine to cleanup the error path. Use sysfs_{create/remove}_group to add/remove the sysfs files. Reduces the text size by 132 bytes, increases data by 12 bytes: text data bss dec hex filename - 937 124 0 1061 425 rtc-ep93xx.o + 805 136 0 941 3ad rtc-ep93xx.o Signed-off-by: H Hartley Sweeten <[email protected]> Acked-by: Alessandro Zummo <[email protected]> Cc: Paul Gortmaker <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06rtc: mxc: fix memory leakAlexander Beregalov1-2/+5
Free pdata before exit. Found by cppcheck. [[email protected]: add missing iounmap()] Signed-off-by: Alexander Beregalov <[email protected]> Reviewed-by: WANG Cong <[email protected]> Acked-by: Daniel Mack <[email protected]> Acked-by: Alessandro Zummo <[email protected]> Cc Yoichi Yuasa <[email protected]> Cc: Paul Gortmaker <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06xen: add kconfig menuRandy Dunlap1-5/+7
Currently the xen support drivers are displayed in the main Device Drivers menu of the config tools instead of in their own sub-menu, so move them to their own sub-menu, like the rest of the driver world uses. This keeps the main Device Drivers menu from becoming messy. Signed-off-by: Randy Dunlap <[email protected]> Cc: Jeremy Fitzhardinge <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06console/vgacon.c: mark file-local symbol staticThiago Farina1-1/+1
warning: symbol 'vgacon_text_mode_force' was not declared. Should it be static? Signed-off-by: Thiago Farina <[email protected]> Acked-by: Matthew Garrett <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06console: limit the range of VGACON_SOFT_SCROLLBACK_SIZEAmerigo Wang1-0/+1
BuraphaLinux reported that we will trigger a mm warning when we CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=65536, this is because mm cann't allocate so many pages. We should limit the range of CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, don't give a user any chance to trigger that. Reported-by: BuraphaLinux Server <[email protected]> Tested-by: BuraphaLinux Server <[email protected]> Signed-off-by: WANG Cong <[email protected]> Cc: David S. Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06drivers/hwmon/adcxx.c: fix for single-channel ADCsJosé Miguel Gonçalves1-5/+10
While testing an ADC121S021 in an embedded board with a S3C2142 SoC (ARM core), I have found that the 'adcxx' driver does not handle correctly single channel ADCs from this chip family. For single channel chips you must only issue one read transfer for correct measurement. Signed-off-by: Jose Miguel Goncalves <[email protected]> Cc: Marc Pignat <[email protected]> Cc: Anton Vorontsov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06drivers/hwmon/vt8231.c: fix continuation line formatsJoe Perches1-2/+1
String constants that are continued on subsequent lines with \ will cause spurious whitespace in the resulting output. Signed-off-by: Joe Perches <[email protected]> Cc: Roger Lucas <[email protected]> Cc: Jean Delvare <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: enable DMA on Ricoh sdhci reader by defaultVasily Khoruzhick1-4/+3
This card reader doesn't advertise, however DMA works well. Probably windows SDHCI driver assumes that all readers support DMA and thus we see that bug. Signed-off-by: Vasily Khoruzhick <[email protected]> Tested-by: Maxim Levitsky <[email protected]> Signed-off-by: Maxim Levitsky <[email protected]> Cc: Harald Welte <[email protected]> Cc: Norbert Preining <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: at91_mci: correct kunmap_atomic()Nicolas Ferre1-2/+2
kunmap_atomic() accepts a pointer to any location in the page so we do not need the subtraction and cast. Signed-off-by: Nicolas Ferre <[email protected]> Cc: Wolfgang Muees <[email protected]> Cc: Andrew Victor <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: at91_mci: introduce per-mci-revision conditional codeNicolas Ferre1-8/+19
We used to manage features and differences on a per-cpu basis. As several cpus share the same mci revision, this patch aggregates cpus that have the same IP revision in one defined constant. We use the at91mci_is_mci1rev2xx() funtion name not to mess with newer Atmel sd/mmc IP called "MCI2". _rev2 naming could have been confusing... Signed-off-by: Nicolas Ferre <[email protected]> Cc: Wolfgang Muees <[email protected]> Cc: Andrew Victor <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: at91_mci: Enable MMC_CAP_SDIO_IRQ only when it actually works.Nicolas Ferre1-1/+8
According to the datasheets AT91SAM9261 does not support SDIO interrupts, and AT91SAM9260/9263 have an erratum requiring 4bit mode while using slot B for the interrupt to work. Signed-off-by: Nicolas Ferre <[email protected]> Cc: Wolfgang Muees <[email protected]> Cc: Andrew Victor <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: at91_mci: enable large data blocksWolfgang Muees1-0/+3
This patch is setting some max_ variables for the IO elevator, so the elevator will put requests for large data blocks to the driver. This is critical for a) speed and b) wear leveling of the flash chip controller: Otherwise the controller will treat the SD card badly with millions of single 4 KByte write commands. This will lead to a shorter life time for the SD cards. Signed-off-by: Wolfgang Muees <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Cc: Andrew Victor <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: at91_mci: use DMA buffer for readWolfgang Muees1-96/+32
Convert the read to use the DMA buffer as well. The old code was doing double-buffering DMA with the PDC; no way to make it work. Replace it with a single-PDC approach. It also simplify things removing the need for a pre_dma_read() function. [[email protected] coding style modifications] Signed-off-by: Wolfgang Muees <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Cc: Andrew Victor <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: at91_mci: use one coherent DMA bufferWolfgang Muees1-25/+24
The TX DMA buffer is allocated only once, because the allocation/deallocation of the buffer for EACH chunk of data is time-consuming and prone to memory fragmentation. Using a coherent DMA buffer avoids extra data cache calls. [[email protected]: coding style modifications] Signed-off-by: Wolfgang Muees <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Cc: Andrew Victor <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: at91_mci: fix timeout errorsWolfgang Muees1-2/+4
Fix two timeout errors, one for slow SDHC cards and one for slow users while inserting SD cards. Signed-off-by: Wolfgang Muees <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Cc: Andrew Victor <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-03-06mmc: at91_mci: fix pointer errorsWolfgang Muees1-3/+5
Fixes two pointer errors, one which leads to memory overwrites if used with large chunks of data. Signed-off-by: Wolfgang Muees <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Cc: Andrew Victor <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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