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* Merge branch 'generic-ipi' into generic-ipi-for-linusIngo Molnar2008-07-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/powerpc/Kconfig arch/s390/kernel/time.c arch/x86/kernel/apic_32.c arch/x86/kernel/cpu/perfctr-watchdog.c arch/x86/kernel/i8259_64.c arch/x86/kernel/ldt.c arch/x86/kernel/nmi_64.c arch/x86/kernel/smpboot.c arch/x86/xen/smp.c include/asm-x86/hw_irq_32.h include/asm-x86/hw_irq_64.h include/asm-x86/mach-default/irq_vectors.h include/asm-x86/mach-voyager/irq_vectors.h include/asm-x86/smp.h kernel/Makefile Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86, visws: use mach-default/entry_arch.hIngo Molnar2008-07-10
| | | | | | | | | | | | | | | | mach-default/entry_arch.h is exactly the same file as mach-visws/entry_arch.h, so include the first from the second, so that updates to the generic one get picked up by VISWS as well. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86, visws: fix generic-ipi buildIngo Molnar2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix: arch/x86/kernel/built-in.o: In function `smp_intr_init': (.init.text+0x49e2): undefined reference to `call_function_single_interrupt' Caused by include/asm-x86/mach-visws/entry_arch.h getting out of sync with the include/asm-x86/mach-default/entry_arch.h file it derives from. Copy the default file over - next step will be to simply include the default file. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * generic-ipi: fixletJens Axboe2008-07-06
| | | | | | | | | | | | create proper stackframe. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * generic-ipi: fix s390 build bugHeiko Carstens2008-07-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | forgot to remove #include <linux/spinlock.h> from linux/smp.h while fixing the original s390 build bug. Patch below fixes this build bug caused by header inclusion dependencies: CC kernel/timer.o In file included from include/linux/spinlock.h:87, from include/linux/smp.h:11, from include/linux/kernel_stat.h:4, from kernel/timer.c:22: include/asm/spinlock.h: In function '__raw_spin_lock': include/asm/spinlock.h:69: error: implicit declaration of function 'smp_processor_id' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * generic-ipi: fix linux-next tree build failureStephen Rothwell2008-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Today's linux-next build (powerpc ppc64_defconfig) failed like this: arch/powerpc/mm/tlb_64.c: In function 'pgtable_free_now': arch/powerpc/mm/tlb_64.c:66: error: too many arguments to function 'smp_call_function' arch/powerpc/kernel/machine_kexec_64.c: In function 'kexec_prepare_cpus': arch/powerpc/kernel/machine_kexec_64.c:175: error: too many arguments to function 'smp_call_function' Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Mackerras <paulus@samba.org> Cc: <linuxppc-dev@ozlabs.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * fix: "smp_call_function: get rid of the unused nonatomic/retry argument"Ingo Molnar2008-06-27
| | | | | | | | | | | | | | drivers/char/sysrq.c: In function 'sysrq_showregs_othercpus': drivers/char/sysrq.c:218: error: too many arguments to function 'smp_call_function' Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * fix: "smp_call_function: get rid of the unused nonatomic/retry argument"Ingo Molnar2008-06-27
| | | | | | | | | | | | | | | | | | fix: kernel/smp.c: In function 'smp_call_function_mask': kernel/smp.c:303: error: too many arguments to function 'smp_call_function_single' Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * fix "smp_call_function: get rid of the unused nonatomic/retry argument"Ingo Molnar2008-06-27
| | | | | | | | | | | | | | | | | | fix: arch/x86/kernel/process.c: In function 'cpu_idle_wait': arch/x86/kernel/process.c:64: error: too many arguments to function 'smp_call_function' Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * on_each_cpu(): kill unused 'retry' parameterJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | It's not even passed on to smp_call_function() anymore, since that was removed. So kill it. Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * smp_call_function: get rid of the unused nonatomic/retry argumentJens Axboe2008-06-26
| | | | | | | | | | | | | | | | It's never used and the comments refer to nonatomic and retry interchangably. So get rid of it. Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * sh: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | This converts sh to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Not tested, but it compiles. Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * parisc: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | | | | | This converts parisc to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Tested by Kyle, seems to work. Cc: Matthew Wilcox <matthew@wil.cx> Cc: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * mips: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | This converts mips to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Not tested, but it compiles. mips shares the same IPI for smp_call_function() and smp_call_function_single(), since not all mips platforms have enough available IPIs to support seperate setups. Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * m32r: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | This converts m32r to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Not tested, not even compiled. Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * arm: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | | | This converts arm to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Fixups and testing done by Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * alpha: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | This converts alpha to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * ia64: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | This converts ia64 to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * powerpc: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | | | | | This converts ppc to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). ppc loses the timeout functionality of smp_call_function_mask() with this change, as the generic code does not provide that. Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * x86: convert to generic helpers for IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | | | This converts x86, x86-64, and xen to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * Add generic helpers for arch IPI function callsJens Axboe2008-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds kernel/smp.c which contains helpers for IPI function calls. In addition to supporting the existing smp_call_function() in a more efficient manner, it also adds a more scalable variant called smp_call_function_single() for calling a given function on a single CPU only. The core of this is based on the x86-64 patch from Nick Piggin, lots of changes since then. "Alan D. Brunelle" <Alan.Brunelle@hp.com> has contributed lots of fixes and suggestions as well. Also thanks to Paul E. McKenney <paulmck@linux.vnet.ibm.com> for reviewing RCU usage and getting rid of the data allocation fallback deadlock. Acked-by: Ingo Molnar <mingo@elte.hu> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2008-07-15
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slab: rename slab_destroy_objs slub: current is always valid slub: Add check for kfree() of non slab objects.
| * | slab: rename slab_destroy_objsRabin Vincent2008-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the removal of destructors, slab_destroy_objs no longer actually destroys any objects, making the kernel doc incorrect and the function name misleading. In keeping with the other debug functions, rename it to slab_destroy_debugcheck and drop the kernel doc. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * | slub: current is always validAlexey Dobriyan2008-07-15
| | | | | | | | | | | | | | | | | | Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * | slub: Add check for kfree() of non slab objects.Christoph Lameter2008-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | We can detect kfree()s on non slab objects by checking for PageCompound(). Works in the same way as for ksize. This helped me catch an invalid kfree(). Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
* | | Merge branch 'upstream-linus' of ↵Linus Torvalds2008-07-15
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: AHCI: Remove an unnecessary flush from ahci_qc_issue AHCI: speed up resume [libata] Add support for VPD page b1 ata: endianness annotations in pata drivers libata-eh: update atapi_eh_request_sense() to take @dev instead of @qc [libata] sata_svw: update code comments relating to data corruption libata/ahci: enclosure management support libata: improve EH internal command timeout handling libata: use ULONG_MAX to terminate reset timeout table libata: improve EH retry delay handling libata: consistently use msecs for time durations
| * | | AHCI: Remove an unnecessary flush from ahci_qc_issueMatthew Wilcox2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an I/O heavy workload (IOZone), ahci_qc_issue is the second-highest consumer of CPU cycles. Removing the flush gets us approximately 10% bandwidth improvement. I believe this to be because the CPU can start queueing the next request instead of waiting for the readl() to flush the writes to the device. The flush isn't necessary because we're using a 'queue' metaphor; we don't guarantee the command has got to the device, nor do we need to guarantee the command has got to the controller. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | AHCI: speed up resumeZhang Rui2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During resume, sleep 1 second to wait for the HBA reset to finish is a waste of time. According to the AHCI 1.2 spec, We should poll the HOST_CTL register, and return error if the host reset is not finished within 1 second. Test results show that the HBA reset can be done quickly(in usecs). And this patch may save nearly 1 second during resume. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | [libata] Add support for VPD page b1Matthew Wilcox2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SCSI VPD page b1 reports the nominal rotation speed and physical size of the device. Devices that conform to ATA-8 can return this information in words 217 and 168 of the identify data. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | ata: endianness annotations in pata driversHarvey Harrison2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/ata/pata_qdi.c:142:9: warning: incorrect type in assignment (different base types) drivers/ata/pata_qdi.c:142:9: expected unsigned int [unsigned] [usertype] pad drivers/ata/pata_qdi.c:142:9: got restricted __le32 [usertype] <noident> drivers/ata/pata_qdi.c:146:15: warning: cast to restricted __le32 drivers/ata/pata_winbond.c:110:9: warning: incorrect type in assignment (different base types) drivers/ata/pata_winbond.c:110:9: expected unsigned int [unsigned] [usertype] pad drivers/ata/pata_winbond.c:110:9: got restricted __le32 [usertype] <noident> drivers/ata/pata_winbond.c:114:15: warning: cast to restricted __le32 drivers/ata/pata_legacy.c:310:9: warning: incorrect type in assignment (different base types) drivers/ata/pata_legacy.c:310:9: expected unsigned int [unsigned] [usertype] pad drivers/ata/pata_legacy.c:310:9: got restricted __le32 [usertype] <noident> drivers/ata/pata_legacy.c:314:15: warning: cast to restricted __le32 drivers/ata/pata_legacy.c:752:11: warning: cast to restricted __le32 drivers/ata/pata_legacy.c:756:9: warning: incorrect type in assignment (different base types) drivers/ata/pata_legacy.c:756:9: expected unsigned int [unsigned] [addressable] [assigned] [usertype] pad drivers/ata/pata_legacy.c:756:9: got restricted __le32 [usertype] <noident> Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | libata-eh: update atapi_eh_request_sense() to take @dev instead of @qcTejun Heo2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update atapi_eh_request_sense() to take @dev, @sense_buf and @dfl_sense_key instead of taking @qc and extracting information from it. This change is to make the function more generic and allow it to be called from other places. While at it, make cdb initialization use initializer. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | [libata] sata_svw: update code comments relating to data corruptionPavel Machek2008-07-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | libata/ahci: enclosure management supportKristen Carlson Accardi2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add Enclosure Management support to libata and ahci. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | libata: improve EH internal command timeout handlingTejun Heo2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ATA_TMOUT_INTERNAL which was 30secs were used for all internal commands which is way too long when something goes wrong. This patch implements command type based stepped timeouts. Different command types can use different timeouts and each command type can use different timeout values after timeouts. ie. the initial timeout is set to a value which should cover most of the cases but not too long so that run away cases don't delay things too much. After the first try times out, the second try can use longer timeout and if that one times out too, it can go for full 30sec timeout. IDENTIFYs use 5s - 10s - 30s timeout and all other commands use 5s - 10s timeouts. This patch significantly cuts down the needed time to handle failure cases while still allowing libata to work with nut job devices through retries. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | libata: use ULONG_MAX to terminate reset timeout tableTejun Heo2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This doesn't introduce any functional changes. This is to make reset timeout table consistent with to-be-added command timeout tables. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | libata: improve EH retry delay handlingTejun Heo2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | EH retries were delayed by 5 seconds to ensure that resets don't occur back-to-back. However, this 5 second delay is superflous or excessive in many cases. For example, after IDENTIFY times out, there's no reason to wait five more seconds before retrying. This patch adds ehc->last_reset timestamp and record the timestamp for the last reset trial or success and uses it to space resets by ATA_EH_RESET_COOL_DOWN which is 5 secs and removes unconditional 5 sec sleeps. As this change makes inter-try waits often shorter and they're redundant in nature, this patch also removes the "retrying..." messages. While at it, convert explicit rounding up division to DIV_ROUND_UP(). This change speeds up EH in many cases w/o sacrificing robustness. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | libata: consistently use msecs for time durationsTejun Heo2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libata has been using mix of jiffies and msecs for time druations. This is getting confusing. As writing sub HZ values in jiffies is PITA and msecs_to_jiffies() can't be used as initializer, unify unit for all time durations to msecs. So, durations are in msecs and deadlines are in jiffies. ata_deadline() is added to compute deadline from a start time and duration in msecs. While at it, drop now superflous _msec suffix from arguments and rename @timeout to @deadline if it represents a fixed point in time rather than duration. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | | | Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds2008-07-15
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: (56 commits) i2c: Add detection capability to new-style drivers i2c: Call client_unregister for new-style devices too i2c: Clean up old chip drivers i2c-ibm_iic: Register child nodes i2c: New-style EEPROM driver using device IDs i2c: Export the i2c_bus_type symbol i2c-au1550: Fix PM support i2c-dev: Delete empty detach_client callback i2c: Drop stray references to lm_sensors i2c: Check for ACPI resource conflicts i2c-ocores: basic PM support i2c-sibyte: SWARM I2C board initialization i2c-i801: Fix handling of error conditions i2c-i801: Rename local variable temp to status i2c-i801: Properly report bus arbitration loss i2c-i801: Remove verbose debugging messages i2c-algo-pcf: Drop unused struct members i2c-algo-pcf: Multi-master lost-arbitration improvement i2c: Deprecate the legacy gpio drivers i2c-pxa: Initialize early ...
| * | | | i2c: Add detection capability to new-style driversJean Delvare2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a mechanism to let new-style i2c drivers optionally autodetect devices they would support on selected buses and ask i2c-core to instantiate them. This is a replacement for legacy i2c drivers, much cleaner. Where drivers had to implement both a legacy i2c_driver and a new-style i2c_driver so far, this mechanism makes it possible to get rid of the legacy i2c_driver and implement both enumerated and detected device support with just one (new-style) i2c_driver. Here is a quick conversion guide for these drivers, step by step: * Delete the legacy driver definition, registration and removal. Delete the attach_adapter and detach_client methods of the legacy driver. * Change the prototype of the legacy detect function from static int foo_detect(struct i2c_adapter *adapter, int address, int kind); to static int foo_detect(struct i2c_client *client, int kind, struct i2c_board_info *info); * Set the new-style driver detect callback to this new function, and set its address_data to &addr_data (addr_data is generally provided by I2C_CLIENT_INSMOD.) * Add the appropriate class to the new-style driver. This is typically the class the legacy attach_adapter method was checking for. Class checking is now mandatory (done by i2c-core.) See <linux/i2c.h> for the list of available classes. * Remove the i2c_client allocation and freeing from the detect function. A pre-allocated client is now handed to you by i2c-core, and is freed automatically. * Make the detect function fill the type field of the i2c_board_info structure it was passed as a parameter, and return 0, on success. If the detection fails, return -ENODEV. Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c: Call client_unregister for new-style devices tooJean Delvare2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We call adapter->client_register for both legacy and new-style i2c devices, however we only call adapter->client_unregister for legacy drivers. This doesn't make much sense. Usually, drivers will undo in client_unregister what they did in client_register, so we should call neither or both for every given i2c device. In order to ease the transition from legacy to new-style devices, it seems preferable to actually call both. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net>
| * | | | i2c: Clean up old chip driversJean Delvare2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up old i2c chip drivers: * Name the i2c_client "client" instead of "new_client". * Drop useless initializations to 0. Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c-ibm_iic: Register child nodesSean MacLennan2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch completes the conversion of the IBM IIC driver to an of-platform driver. It removes the index from the IBM IIC driver and makes it an unnumbered driver. It then calls of_register_i2c_devices to properly register all the child nodes in the DTS. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c: New-style EEPROM driver using device IDsWolfram Sang2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new-style driver for most I2C EEPROMs, giving sysfs read/write access to their data. Tested with various chips and clock rates. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c: Export the i2c_bus_type symbolJon Smirl2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Export the root of the i2c bus so that PowerPC device tree code can iterate over devices on the i2c bus. Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c-au1550: Fix PM supportManuel Lauss2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix driver power management: - suspend the PSC while driver is idle. - move PSC init/deinit to separate functions, as PSC must be initialized/shutdown on resume/suspend. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c-dev: Delete empty detach_client callbackJean Delvare2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implementing detach_client is optional, so there is no point in an empty implementation. Likewise, i2c driver IDs are optional, and we don't need one. Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c: Drop stray references to lm_sensorsJean Delvare2008-07-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c: Check for ACPI resource conflictsJean Delvare2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check for ACPI resource conflicts in i2c bus drivers. I've included all recent SMBus master drivers for PC hardware. I've voluntarily left out: * Drivers that don't run on PCs: they can't conflict with ACPI. * Bit-banged bus device drivers: it's very unlikely that ACPI would deal with such buses. Signed-off-by: Jean Delvare <jdelvare@suse.de>
| * | | | i2c-ocores: basic PM supportManuel Lauss2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Basic PM support: reinit the core on resume, disable it on suspend. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * | | | i2c-sibyte: SWARM I2C board initializationMaciej W. Rozycki2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The standard rtc-m41t80.c driver cannot be used with the SWARM as it is, because the board does not provide setup information for the I2C core. As a result the bus and the address to probe for the M41T80 chip is not known. Here is a set of changes that fix the problem: 1. swarm-i2c.c -- SWARM I2C board setup, currently for the M41T80 chip on the bus #1 only (there is a MAX6654 temperature sensor on the bus #0 which may be added in the future if we have a driver for that chip). 2. The i2c-sibyte.c BCM1250A SMBus controller driver now registers its buses as numbered so that board setup is correctly applied. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-13 09:54:40 -0500