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* x86, AMD IOMMU: add map_page and unmap_pageFUJITA Tomonori2009-01-06
| | | | | | | | | | | This is a preparation of struct dma_mapping_ops unification. We use map_page and unmap_page instead of map_single and unmap_single. We will remove map_single and unmap_single hooks in the last patch in this patchset. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86, calgary: add map_page and unmap_pageFUJITA Tomonori2009-01-06
| | | | | | | | | | | | This is a preparation of struct dma_mapping_ops unification. We use map_page and unmap_page instead of map_single and unmap_single. We will remove map_single and unmap_single hooks in the last patch in this patchset. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86, gart: add map_page and unmap_pageFUJITA Tomonori2009-01-06
| | | | | | | | | | | This is a preparation of struct dma_mapping_ops unification. We use map_page and unmap_page instead of map_single and unmap_single. We will remove map_single and unmap_single hooks in the last patch in this patchset. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86, swiotlb: add map_page and unmap_pageFUJITA Tomonori2009-01-06
| | | | | | | | | | | | | | This is a preparation of struct dma_mapping_ops unification. We use map_page and unmap_page instead of map_single and unmap_single. This is sorta temporary workaround. We will move them to lib/swiotlb.c to enable x86's swiotlb code to directly use them. We will remove map_single and unmap_single hooks in the last patch in this patchset. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: add map_page and unmap_page to struct dma_mapping_opsFUJITA Tomonori2009-01-06
| | | | | | | | | | | | | This patch adds map_page and unmap_page to struct dma_mapping_ops. This is a preparation of struct dma_mapping_ops unification. We use map_page and unmap_page instead of map_single and unmap_single. We will remove map_single and unmap_single hooks in the last patch in this patchset. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* make sba DMA mapping functions staticFUJITA Tomonori2009-01-06
| | | | | | | | Now we don't need to export these DMA mapping functions. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* remove hwsw_dma_opsFUJITA Tomonori2009-01-06
| | | | | | | | | | This removes remove hwsw_dma_ops (and hwsw_* functions). hwsw_dma_get_ops can select swiotlb_dma_ops and sba_dma_ops appropriately. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* add dma_get_ops to struct ia64_machine_vectorFUJITA Tomonori2009-01-06
| | | | | | | | | | This adds dma_get_ops hook to struct ia64_machine_vector. We use dma_get_ops() in arch/ia64/kernel/dma-mapping.c, which simply returns the global dma_ops. This is for removing hwsw_dma_ops. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* make sn DMA mapping functions staticFUJITA Tomonori2009-01-06
| | | | | | | | Now we don't need to export sn DMA mapping functions. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* remove dma operations in struct ia64_machine_vectorFUJITA Tomonori2009-01-06
| | | | | | | | | We don't need dma operation hooks in struct ia64_machine_vector now. This also removes unused ia64_mv_dma_* typedefs. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* convert the DMA API to use dma_opsFUJITA Tomonori2009-01-06
| | | | | | | | This writes asm/dma-mapping.h to convert the DMA API to use dma_ops. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* set up dma_ops appropriatelyFUJITA Tomonori2009-01-06
| | | | | | | | | | | | | | | | | | | This patch introduces a global pointer, dma_ops, which points to an appropriate dma_mapping_ops that the kernel should use. This is a common way to handle multiple dma_mapping_ops (X86, POWER, and SPARC). dma_ops is set in platform_dma_init. We also set it by hand where machvec_init is callev via subsys_initcall. - IA64_DIG_VTD uses vtd_dma_ops. - IA64_HP_ZX1 uses sba_dma_ops. - IA64_HP_ZX1_SWIOTLB uses hwsw_dma_ops. - IA64_SGI_SN2 uses sn_dma_ops. - The rest use swiotlb_dma_ops. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* add dma_mapping_ops for SWIOTLBFUJITA Tomonori2009-01-06
| | | | | | | | | | | | There is already dma_mapping_ops for SWIOTLB but there are some missing hooks. This is for IA64_DIG_VTD, IA64_HP_ZX1_SWIOTLB, IA64_SGI_UV, IA64_HP_SIM, IA64_XEN_GUEST and IA64_GENERIC. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* add dma_mapping_ops for SGI AltixFUJITA Tomonori2009-01-06
| | | | | | | | This is for IA64_SGI_SN2. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* add dma_mapping_ops for intel-iommuFUJITA Tomonori2009-01-06
| | | | | | | | This is for IA64_DIG_VTD. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* add dma_mapping_ops for SWIOTLB and SBA IOMMUFUJITA Tomonori2009-01-06
| | | | | | | | This is for IA64_HP_ZX1_SWIOTLB. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* add dma_mapping_ops for SBA IOMMUFUJITA Tomonori2009-01-06
| | | | | | | | This is for IA64_HP_ZX1. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* add map/unmap_single_attr and map/unmap_sg_attr to struct dma_mapping_opsFUJITA Tomonori2009-01-06
| | | | | | | | | | | | | | This adds map/unmap_single_attr and map/unmap_sg_attr to struct dma_mapping_ops. This enables us to move the dma operations in struct ia64_machine_vector to struct dma_mapping_ops. Note that we will remove map/unmap_sg and map/umap_single. This is a preparation of struct dma_mapping_ops unification. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
*---. Merge branches 'core/futexes', 'core/locking', 'core/rcu' and 'linus' into ↵Ingo Molnar2009-01-06
|\ \ \ | | | | | | | | | | | | core/urgent
| | | * Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dmLinus Torvalds2009-01-05
| | | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: dm snapshot: extend exception store functions dm snapshot: split out exception store implementations dm snapshot: rename struct exception_store dm snapshot: separate out exception store interface dm mpath: move trigger_event to system workqueue dm: add name and uuid to sysfs dm table: rework reference counting dm: support barriers on simple devices dm request: extend target interface dm request: add caches dm ioctl: allow dm_copy_name_and_uuid to return only one field dm log: ensure log bitmap fits on log device dm log: move region_size validation dm log: avoid reinitialising io_req on every operation dm: consolidate target deregistration error handling dm raid1: fix error count dm log: fix dm_io_client leak on error paths dm snapshot: change yield to msleep dm table: drop reference at unbind
| | | | * dm snapshot: extend exception store functionsJonathan Brassow2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Supply dm_add_exception as a callback to the read_metadata function. Add a status function ready for a later patch and name the functions consistently. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm snapshot: split out exception store implementationsAlasdair G Kergon2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the existing snapshot exception store implementations out into separate files. Later patches will place these behind a new interface in preparation for alternative implementations. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm snapshot: rename struct exception_storeJonathan Brassow2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename struct exception_store to dm_exception_store. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm snapshot: separate out exception store interfaceJonathan Brassow2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull structures that bridge the gap between snapshot and exception store out of dm-snap.h and put them in a new .h file - dm-exception-store.h. This file will define the API for new exception stores. Ultimately, dm-snap.h is unnecessary, since only dm-snap.c should be using it. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm mpath: move trigger_event to system workqueueAlasdair G Kergon2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The same workqueue is used both for sending uevents and processing queued I/O. Deadlock has been reported in RHEL5 when sending a uevent was blocked waiting for the queued I/O to be processed. Use scheduled_work() for the asynchronous uevents instead. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm: add name and uuid to sysfsMilan Broz2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement simple read-only sysfs entry for device-mapper block device. This patch adds a simple sysfs directory named "dm" under block device properties and implements - name attribute (string containing mapped device name) - uuid attribute (string containing UUID, or empty string if not set) The kobject is embedded in mapped_device struct, so no additional memory allocation is needed for initializing sysfs entry. During the processing of sysfs attribute we need to lock mapped device which is done by a new function dm_get_from_kobj, which returns the md associated with kobject and increases the usage count. Each 'show attribute' function is responsible for its own locking. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm table: rework reference countingMikulas Patocka2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rework table reference counting. The existing code uses a reference counter. When the last reference is dropped and the counter reaches zero, the table destructor is called. Table reference counters are acquired/released from upcalls from other kernel code (dm_any_congested, dm_merge_bvec, dm_unplug_all). If the reference counter reaches zero in one of the upcalls, the table destructor is called from almost random kernel code. This leads to various problems: * dm_any_congested being called under a spinlock, which calls the destructor, which calls some sleeping function. * the destructor attempting to take a lock that is already taken by the same process. * stale reference from some other kernel code keeps the table constructed, which keeps some devices open, even after successful return from "dmsetup remove". This can confuse lvm and prevent closing of underlying devices or reusing device minor numbers. The patch changes reference counting so that the table destructor can be called only at predetermined places. The table has always exactly one reference from either mapped_device->map or hash_cell->new_map. After this patch, this reference is not counted in table->holders. A pair of dm_create_table/dm_destroy_table functions is used for table creation/destruction. Temporary references from the other code increase table->holders. A pair of dm_table_get/dm_table_put functions is used to manipulate it. When the table is about to be destroyed, we wait for table->holders to reach 0. Then, we call the table destructor. We use active waiting with msleep(1), because the situation happens rarely (to one user in 5 years) and removing the device isn't performance-critical task: the user doesn't care if it takes one tick more or not. This way, the destructor is called only at specific points (dm_table_destroy function) and the above problems associated with lazy destruction can't happen. Finally remove the temporary protection added to dm_any_congested(). Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm: support barriers on simple devicesAndi Kleen2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement barrier support for single device DM devices This patch implements barrier support in DM for the common case of dm linear just remapping a single underlying device. In this case we can safely pass the barrier through because there can be no reordering between devices. NB. Any DM device might cease to support barriers if it gets reconfigured so code must continue to allow for a possible -EOPNOTSUPP on every barrier bio submitted. - agk Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm request: extend target interfaceKiyoshi Ueda2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the following target interfaces for request-based dm. map_rq : for mapping a request rq_end_io : for finishing a request busy : for avoiding performance regression from bio-based dm. Target can tell dm core not to map requests now, and that may help requests in the block layer queue to be bigger by I/O merging. In bio-based dm, this behavior is done by device drivers managing the block layer queue. But in request-based dm, dm core has to do that since dm core manages the block layer queue. Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm request: add cachesKiyoshi Ueda2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch prepares some kmem_caches for request-based dm. Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm ioctl: allow dm_copy_name_and_uuid to return only one fieldMilan Broz2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow NULL buffer in dm_copy_name_and_uuid if you only want to return one of the fields. (Required by a following patch that adds these fields to sysfs.) Signed-off-by: Milan Broz <mbroz@redhat.com> Reviewed-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm log: ensure log bitmap fits on log deviceMilan Broz2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check that the log bitmap will fit within the log device. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm log: move region_size validationMilan Broz2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move log size validation from mirror target to log constructor. Removed PAGE_SIZE restriction we no longer think necessary. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm log: avoid reinitialising io_req on every operationTakahiro Yasui2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rw_header function updates three members of io_req data every time when I/O is processed. bi_rw and notify.fn are never modified once they get initialized, and so they can be set in advance. header_to_disk() can also be pulled out of write_header() since only one caller needs it and write_header() can be replaced by rw_header() directly. Signed-off-by: Takahiro Yasui <tyasui@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm: consolidate target deregistration error handlingMikulas Patocka2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change dm_unregister_target to return void and use BUG() for error reporting. dm_unregister_target can only fail because of programming bug in the target driver. It can't fail because of user's behavior or disk errors. This patch changes unregister_target to return void and use BUG if someone tries to unregister non-registered target or unregister target that is in use. This patch removes code duplication (testing of error codes in all dm targets) and reports bugs in just one place, in dm_unregister_target. In some target drivers, these return codes were ignored, which could lead to a situation where bugs could be missed. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm raid1: fix error countJonathan Brassow2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Always increase the error count when I/O on a leg of a mirror fails. The error count is used to decide whether to select an alternative mirror leg. If the target doesn't use the "handle_errors" feature, the error count is not updated and the bio can get requeued forever by the read callback. Fix it by increasing error_count before the handle_errors feature checking. Cc: stable@kernel.org Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm log: fix dm_io_client leak on error pathsTakahiro Yasui2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In create_log_context function, dm_io_client_destroy function needs to be called, when memory allocation of disk_header, sync_bits and recovering_bits failed, but dm_io_client_destroy is not called. Cc: stable@kernel.org Signed-off-by: Takahiro Yasui <tyasui@redhat.com> Acked-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm snapshot: change yield to msleepMikulas Patocka2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change yield() to msleep(1). If the thread had realtime priority, yield() doesn't really yield, so the yielding process would loop indefinitely and cause machine lockup. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | | * dm table: drop reference at unbindMikulas Patocka2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move one dm_table_put() so that the last reference in the thread gets dropped in __unbind(). This is required for a following patch, dm-table-rework-reference-counting.patch, which will change the logic in such a way that table destructor is called only at specific points in the code. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| | | * | Merge branch 'for-next' of git://git.o-hand.com/linux-mfdLinus Torvalds2009-01-05
| | | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-next' of git://git.o-hand.com/linux-mfd: (30 commits) mfd: Fix section mismatch in da903x mfd: move drivers/i2c/chips/menelaus.c to drivers/mfd mfd: move drivers/i2c/chips/tps65010.c to drivers/mfd mfd: dm355evm msp430 driver mfd: Add missing break from wm3850-core mfd: Add WM8351 support mfd: Support configurable numbers of DCDCs and ISINKs on WM8350 mfd: Handle missing WM8350 platform data mfd: Add WM8352 support mfd: Use irq_to_desc in twl4030 code power_supply: Add Dialog DA9030 battery charger driver mfd: Dialog DA9030 battery charger MFD driver mfd: Register WM8400 codec device mfd: Pass driver_data onto child devices mfd: Fix twl4030-core.c build error mfd: twl4030 regulator bug fixes mfd: twl4030: create some regulator devices mfd: twl4030: cleanup symbols and OMAP dependency mfd: twl4030: simplified child creation code power_supply: Add battery health reporting for WM8350 ...
| | | | * | mfd: Fix section mismatch in da903xMark Brown2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The subdevice removal functions are marked __devexit but are referenced from the error handling path when probing so are needed even when __devexit functions are removed. Signed-off-by: Mark Brown <broonie@sirena.org.uk> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: move drivers/i2c/chips/menelaus.c to drivers/mfdDavid Brownell2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ove the menelaus driver from drivers/i2c/chips to drivers/mfd since it's more of a multi-function device than anything else, and since Jean is trying to vanish drivers/i2c/chips ASAP. One way to think of these chips are as the PMIC family most used with OMAP2 generation chips. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: move drivers/i2c/chips/tps65010.c to drivers/mfdDavid Brownell2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the tps65010 driver from drivers/i2c/chips to drivers/mfd since it's more of a multi-function device than anything else, and since Jean is trying to vanish drivers/i2c/chips ASAP. One way to think of these chips are as the PMIC family most used with OMAP1 generation chips. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: dm355evm msp430 driverDavid Brownell2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Basic MFD framework for the MSP430 microcontroller firmware used on the dm355evm board: - Provides an interface for other drivers: register read/write utilities, and register declarations. - Directly exports: * Many signals through the GPIO framework + LEDs + SW6 through gpio sysfs + NTSC/nPAL jumper through gpio sysfs + ... more could be added later, e.g. MMC signals * Child devices: + LEDs, via leds-gpio child (and default triggers) + RTC, via rtc-dm355evm child device + Buttons and IR control, via dm355evm_keys - Supports power-off system call. Use the reset button to power the board back up; the power supply LED will be on, but the MSP430 waits to re-activate the regulators. - On probe() this: * Announces firmware revision * Turns off the banked LEDs * Exports the resources noted above * Hooks the power-off support * Muxes tvp5146 -or- imager for video input Unless the new tvp514x driver (tracked for mainline) is configured, this assumes that some custom imager driver handles video-in. This completely ignores the registers reporting the output voltages on the various power supplies. Someone could add a hwmon interface if that seems useful. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: Add missing break from wm3850-coreMark Brown2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: Add WM8351 supportMark Brown2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WM8351 is a WM8350 variant. As well as register default changes the WM8351 has fewer voltage and current regulators than the WM8350. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: Support configurable numbers of DCDCs and ISINKs on WM8350Mark Brown2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some WM8350 variants have fewer DCDCs and ISINKs. Identify these at probe and refuse to use the absent DCDCs when running on these chips. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: Handle missing WM8350 platform dataMark Brown2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: Add WM8352 supportMark Brown2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WM8352 is a variant of the WM8350. Aside from the register defaults there are no software visible differences to the WM8350. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
| | | | * | mfd: Use irq_to_desc in twl4030 codeSamuel Ortiz2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The global irq_desc array is soon going to be accessible only with !CONFIG_SPARSE_IRQ. We should start using the generic irq_to_desc() routines instead. Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 10:46:06 -0500