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2008-01-27i2c-pxa: Add polling transferMike Rapoport
Add polling I2C transfer implementation for PXA I2C. This is needed for cases where I2C transactions have to occur at times interrups are disabled. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: eric miao <eric.miao@marvell.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Support i2c_transfer in atomic contextsMike Rapoport
Allow i2c_transfer to be called in contexts where sleeping is not allowed. It is the reponsability of the caller to ensure that the underlying i2c bus driver will not sleep either. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-sibyte: Remove the bus scan module parameterJean Delvare
The implementation is unsafe, and anyway one can achieve the same from userspace using i2c-dev + i2cdetect. Also tag i2c_sibyte_add_bus __init. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Ralf Baechle <ralf@linux-mips.org>
2008-01-27i2c: Discard unused driver IDsJean Delvare
Discard all I2C driver IDs that aren't used anywhere. That's not just a couple of them, but more like 49 or one quarter of all defined IDs! And this is just a first pass, next will come all IDs that are set but never used, or used but never set. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-i801: Implement I2C block read supportJean Delvare
I2C block read is supported since the ICH5. I couldn't get it to work using the block buffer, so it's using the old-style byte-by-byte mode for now. Note: I'm also updating the driver author... The i2c-i801 driver was really written by Mark Studebaker, even though he based his work on the i2c-piix4 driver which was written by Philip Edelbrock. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-i801: Clear special mode bits as neededJean Delvare
Clear special mode bits (PEC, block buffer) at driver load time, you never know in which state the device was left by its last user. Also make sure that we reset the block buffer mode at the end of every transaction, not only when PEC was used. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-i801: More explicit names for chip featuresJean Delvare
Use separate flags with explicit names to describe the features of the ICH chip. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-i801: Document which chip support what featureJean Delvare
Provide a clearer documentation of which additional features each ICH chip support, and which of these the driver supports. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c/tps65010: move header to <linux/i2c/...>David Brownell
Move the tps65010 header file from the OMAP arch directory to the more generic <linux/i2c/...> directory, and remove the spurious dependency of this driver on OMAP. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Rename main mutexJean Delvare
Rename the main mutex in i2c-core from core_lists to core_lock. This makes more sense now that the redundant lists are gone. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Drop redundant i2c_driver.listJean Delvare
i2c_driver.list is superfluous, this list duplicates the one maintained by the driver core. Drop it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net>
2008-01-27i2c: Drop redundant i2c_adapter.listJean Delvare
i2c_adapter.list is superfluous, this list duplicates the one maintained by the driver core. Drop it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net>
2008-01-27i2c: Change prototypes of refcounting functionsJean Delvare
Use more standard prototypes for i2c_use_client() and i2c_release_client(). The former now returns a pointer to the client, and the latter no longer returns anything. This matches what all other subsystems do. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net>
2008-01-27i2c: Use the driver model reference countingJean Delvare
Don't implement our own reference counting mechanism for i2c clients when the driver model already has one. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net>
2008-01-27i2c: Deprecate drivers for I2C buses on video adaptersJean Delvare
The framebuffer drivers for these pieces of hardware include support for the DDC/I2C buses, so there is no need for separate drivers. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Don't uselessly set i2c_adapter.retriesJean Delvare
I2C adapter drivers are supposed to handle retries on nack by themselves if they do, so there's no point in setting .retries if they don't. As this retry mechanism is going away (at least in its current form), clean this up now so that we don't get build failures later. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Kill rogue driver IDsJean Delvare
I2C driver IDs are optional, so if you don't need one, just omit it. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: normal_i2c can be made const (remaining drivers)Jean Delvare
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: normal_i2c can be made const (rtc drivers)Jean Delvare
Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
2008-01-27i2c: Constify client address dataMark M. Hoffman
This patch allows much of the I2C client address data to move from initdata into text. Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-algo-pcf: Delete broken 10-bit address supportJean Delvare
The 10-bit address support in i2c-algo-pcf is so heavily broken that it can't have ever been used. Nobody ever complained, so I'll take it that nobody needs it. Let's just delete it. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-algo-bit: Fix NAK/ARB commentsDavid Brownell
Update comments and logging on return path for byte writes. NAK is an error, to be reported or optionally ignored. Timeouts are always errors. Lost arbitration is not currently handled, so don't even list it as an option in the error message. Don't return bogus EFAULT code for inappropriate NAK; EIO is better, there is no bad userspace address in question. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-algo-bit: Whitespace fixes (+ NAK/ARB comments)David Brownell
Fix *LOTS* of whitespace goofs and checkpatch.pl warnings, strangely parenthesized ternary expressions, and other CodingStyle glitches. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-pxa: Remove hardcoded #ifdef and use cpu_is_pxa27xeric miao
remove #ifdef CONFIG_PXA27x .. #endif and use cpu_is_pxaXXXX() macros so that a single binary can support PXA25x/PXA27x/PXA3xx at run-time. Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: some overdue driver removalAdrian Bunk
This patch contains the overdue removal of three I2C drivers. [JD: In fact only i2c-ixp4xx can be removed at the moment, the other two platforms don't implement the generic GPIO layer yet.] Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27ixp4xx-i2c-gpioMichael-Luke Jones
Migrate all ixp4xx devices to the bitbanging I2C bus driver utilizing the arch-neutral GPIO API (linux/i2c-gpio.h). Tested by the nslu2-linux and openwrt projects in public firmware releases. Signed-off-by: Michael-Luke Jones <mlj28@cam.ac.uk> Acked-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: the scheduled I2C RTC driver removalAdrian Bunk
This patch contains the scheduled removal of legacy I2C RTC drivers with replacement drivers. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-stub: Use a single array for byte and word operationsJean Delvare
This mimics the behavior of actual SMBus chips better. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Mark M. Hoffman <mhoffman@lightlink.com>
2008-01-27i2c-stub: Mention the existence of an helper scriptJean Delvare
There's a new script named i2c-stub-from-dump that can be very helpful when working with the i2c-stub driver. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c/tsl2550: Add power management addedRodolfo Giometti
Signed-off-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c: Add support for the PCF8575 chipBart Van Assche
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-ibm_iic: Whitespace cleanupStefan Roese
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-pasemi: use i2c_add_numbered_adapter()Olof Johansson
Use numbered adapter registration to always have the same hardware bus show up at the same number. PWRficient 1682M has three buses, they are all on the same PCI device but different functions. So do the simple thing and register them based on function number. Future products, if having a different number of busses, are expected to have similar behaviour w.r.t. device/function layout. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-nforce2: The nForce2 can do block transactionsJean Delvare
My guess is that all the chips supported by this driver support block transactions and reset, but for now we play it safe and only list the ones for which this was actually tested. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Oleg Ryjkov <olegr@olegr.ca>
2008-01-27printk: revert ktime_get() timestampsIngo Molnar
revert 19ef9309273d26cb005cb23e6a370353dca91099. Kevin Winchester reported a lockup during X startup an bisected it to this commit. Reported-by: Kevin Winchester <kjwinchester@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] DFS build fixes [CIFS] DFS support: provide shrinkable mounts [CIFS] Do not log path names in lookup errors [CIFS] DFS support patchset: Added mountdata [CIFS] Forgot to add two new files from previous commit [CIFS] DNS name resolution helper upcall for cifs [CIFS] fix checkpatch warnings in fs/cifs/inode.c [CIFS] hold ses sem on tcp session reconnect during mount [CIFS] Allow setting mode via cifs acl [CIFS] fix unicode string alignment in SPNEGO setup [CIFS] cifs_partialpagewrite() cleanup [CIFS] use krb5 session key from first SMB session after a NegProt [CIFS] redo existing session setup if needed in cifs_mount [CIFS] Only dump SPNEGO key if CONFIG_CIFS_DEBUG2 is set [CIFS] fix SetEA failure to some Samba versions
2008-01-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (63 commits) ide: remove REQ_TYPE_ATA_CMD ide: switch ide_cmd_ioctl() to use REQ_TYPE_ATA_TASKFILE requests ide: switch set_xfer_rate() to use REQ_TYPE_ATA_TASKFILE requests ide: fix final status check in drive_cmd_intr() ide: check BUSY and ERROR status bits before reading data in drive_cmd_intr() ide: don't enable local IRQs for PIO-in in driver_cmd_intr() (take 2) ide: convert "empty" REQ_TYPE_ATA_CMD requests to use REQ_TYPE_ATA_TASKFILE ide: initialize rq->cmd_type in ide_init_drive_cmd() callers ide: use wait_drive_not_busy() in drive_cmd_intr() (take 2) ide: kill DATA_READY define ide: task_end_request() fix ide: use rq->nr_sectors in task_end_request() ide: remove needless ->cursg clearing from task_end_request() ide: set IDE_TFLAG_IN_* flags before queuing/executing command ide-tape: fix handling of non-special requests in ->end_request method ide: fix final status check in task_in_intr() ide: clear HOB bit for REQ_TYPE_ATA_CMD requests in ide_end_drive_cmd() ide: fix ->io_32bit race in ide_taskfile_ioctl() cmd64x: remove /proc/ide/cmd64x ide: remove broken disk byte-swapping support ...
2008-01-26Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (56 commits) [S390] replace lock_cpu_hotplug with get_online_cpus [S390] usage of s390dbf: shrink number of debug areas to use. [S390] constify function pointer tables. [S390] do local_irq_restore while spinning in spin_lock_irqsave. [S390] add smp_call_function_mask [S390] dasd: fix loop in request expiration handling [S390] Unused field / extern declaration in processor.h [S390] Remove TOPDIR from Makefile [S390] dasd: add hyper PAV support to DASD device driver, part 1 [S390] single-step cleanup [S390] Move NOTES and BUG_TABLE. [S390] drivers/s390/: Spelling fixes [S390] include/asm-s390/: Spelling fixes [S390] arch/s390/: Spelling fixes [S390] Use diag308 subcodes 3 and 6 for reboot and dump when possible. [S390] vmemmap: allocate struct pages before 1:1 mapping [S390] Initialize sclp_ipl_info [S390] Allocate and free cpu lowcores and stacks when needed/possible. [S390] use LIST_HEAD instead of LIST_HEAD_INIT [S390] Load disabled wait psw instead of stopping cpu on halt. ...
2008-01-26Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: selinux: fix labeling of /proc/net inodes
2008-01-26ide: remove REQ_TYPE_ATA_CMDBartlomiej Zolnierkiewicz
Based on the earlier work by Tejun Heo. All users are gone so we can finally remove it. Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: switch ide_cmd_ioctl() to use REQ_TYPE_ATA_TASKFILE requestsBartlomiej Zolnierkiewicz
Based on the earlier work by Tejun Heo. There should be no functionality changes caused by this patch. Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: switch set_xfer_rate() to use REQ_TYPE_ATA_TASKFILE requestsBartlomiej Zolnierkiewicz
Based on the earlier work by Tejun Heo. Switch set_xfer_rate() to use REQ_TYPE_ATA_TASKFILE requests and make ide_wait_cmd() static. There should be no functionality changes caused by this patch. Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: fix final status check in drive_cmd_intr()Bartlomiej Zolnierkiewicz
Don't check for READY_STAT bit being set for PIO-in protocol (makes the final status check in drive_cmd_intr() match the one in task_in_intr()). Also fix function name reported by ide_error() call while at it. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: check BUSY and ERROR status bits before reading data in drive_cmd_intr()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: don't enable local IRQs for PIO-in in driver_cmd_intr() (take 2)Bartlomiej Zolnierkiewicz
Don't enable local IRQs for PIO-in protocol in driver_cmd_intr(). While at it: * Remove redundant rq->cmd_type check. * Read status register after enabling local IRQs for no-data protocol. v2: * Re-add DRQ=1 check lost in v1 (noticed by Sergei). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: convert "empty" REQ_TYPE_ATA_CMD requests to use REQ_TYPE_ATA_TASKFILEBartlomiej Zolnierkiewicz
Based on the previous work by Tejun Heo. There should be no functionality changes caused by this patch. Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: initialize rq->cmd_type in ide_init_drive_cmd() callersBartlomiej Zolnierkiewicz
* Initialize rq->cmd_type in ide_wait_cmd(), ide_cmd_ioctl() and set_pio_mode() (other callers were aleady over-riding rq->cmd_type). * Remove no longer needed rq->cmd_type setup from ide_init_drive_cmd(). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: use wait_drive_not_busy() in drive_cmd_intr() (take 2)Bartlomiej Zolnierkiewicz
Use wait_drive_not_busy() in drive_cmd_intr(). v2: * Fix wait_drive_not_busy() comment (noticed by Sergei). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: kill DATA_READY defineBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: task_end_request() fixTejun Heo
task_end_request() modified to always call ide_end_drive_cmd() for taskfile requests. Previously, ide_end_drive_cmd() was called only when IDE_TFLAG_FLAGGED was set. Also, ide_dma_intr() is modified to use task_end_request(). Enables TASKFILE ioctls to get valid register outputs on successful completion. Bart: - ported it over recent IDE changes Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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