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* leds: Add user LED driver for NIC78bx deviceHui Chun Ong2016-11-223-0/+221
| | | | | | | | | Add the driver to support User LEDs on PXI Embedded Controller. Signed-off-by: Hui Chun Ong <hui.chun.ong@ni.com> Signed-off-by: Brad Mouring <brad.mouring@ni.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds: verify vendor and change license in mlxcpld driverVadim Pasternak2016-11-221-1/+4
| | | | | | | | | Verify that vendor is Mellanox as the first step of initialization. If it is not - return ENODEV. Change module license from "GPL v2" to "Dual BSD/GPL". Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds: pca963x: enable low-power stateMatt Ranostay2016-11-221-7/+33
| | | | | | | | | | | Allow chip to enter low power state when no LEDs are being lit or in blink mode. Cc: Peter Meerwald <p.meerwald@bct-electronic.com>, Cc: Ricardo Ribalda <ricardo.ribalda@gmail.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Matt Ranostay <matt@ranostay.consulting> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds: pca9532: Use default trigger value from platform dataFelix Brack2016-11-221-1/+1
| | | | | | | | The value for a led's default_trigger should come from platform data instead of data (which is always 0). Signed-off-by: Felix Brack <fb@ltec.ch> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds: pca963x: workaround group blink scaling issueMatt Ranostay2016-11-222-3/+18
| | | | | | | | | | PCA9632TK part seems to incorrectly blink at ~1.3x of the programmed rate. This patchset add a nxp,period-scale devicetree property to adjust for this misconfiguration. Signed-off-by: Matt Ranostay <matt@ranostay.consulting> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* cleanup LED documentation and make it match realityPavel Machek2016-11-221-3/+11
| | | | | | | | sysfs-class-led fails to mention some important details. Also fix led vs LED and english. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds: lp3952: Export I2C module alias information for module autoloadJavier Martinez Canillas2016-11-221-0/+1
| | | | | | | | | | | | | | | | | | | | | If the driver is built as a module, I2C module alias information is not filled so the module won't be autoloaded if the device isn't registered over ACPI. Export the I2C device table alias with MODULE_DEVICE_TABLE() macro so the information is exported in the module. Before this patch: $ modinfo drivers/leds/leds-lp3952.ko | grep alias alias: acpi*:TXNW3952:* After this patch: $ modinfo drivers/leds/leds-lp3952.ko | grep alias alias: i2c:lp3952 alias: acpi*:TXNW3952:* Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds: mc13783: Fix MC13892 keypad led accessAlexander Kurz2016-11-221-2/+3
| | | | | | | | | Fix the register access shift argument calculation introduced with commit a59ce6584d56 ("leds: leds-mc13783: Add MC34708 LED support") and re-enable access to the "keypad" led for MC13892 MFC devices. Signed-off-by: Alexander Kurz <akurz@blala.de> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* ledtrig-cpu.c: fix englishPavel Machek2016-11-221-1/+1
| | | | | | | Fix english spelling. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds/leds-lp5523.txt: make documentation match realityPavel Machek2016-11-221-2/+2
| | | | | | | Files are visible all the time, so remove incorrect notes. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* tools/leds: Add uledmon program for monitoring userspace LEDsDavid Lechner2016-11-224-3/+81
| | | | | | | | | The uleds driver provides userspace LED devices. This tool is used to create one of these devices and monitor the changes in brighness for testing purposes. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds: Use macro for max device node name sizeDavid Lechner2016-11-221-1/+2
| | | | | | | | Use a macro instead of hard-coding the max device node name size. The uleds driver introduced a macro for this value, so using it. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* leds: Introduce userspace LED class driverDavid Lechner2016-11-226-0/+307
| | | | | | | | | | | | | | This driver creates a userspace leds driver similar to uinput. New LEDs are created by opening /dev/uleds and writing a uleds_user_dev struct. A new LED class device is registered with the name given in the struct. Reading will return a single byte that is the current brightness. The poll() syscall is also supported. It will be triggered whenever the brightness changes. Closing the file handle to /dev/uleds will remove the leds class device. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
* Linux 4.9-rc1v4.9-rc1Linus Torvalds2016-10-151-2/+2
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* Merge tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befsLinus Torvalds2016-10-158-283/+244
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull befs fixes from Luis de Bethencourt: "I recently took maintainership of the befs file system [0]. This is the first time I send you a git pull request, so please let me know if all the below is OK. Salah Triki and myself have been cleaning the code and fixing a few small bugs. Sorry I couldn't send this sooner in the merge window, I was waiting to have my GPG key signed by kernel members at ELCE in Berlin a few days ago." [0] https://lkml.org/lkml/2016/7/27/502 * tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befs: (39 commits) befs: befs: fix style issues in datastream.c befs: improve documentation in datastream.c befs: fix typos in datastream.c befs: fix typos in btree.c befs: fix style issues in super.c befs: fix comment style befs: add check for ag_shift in superblock befs: dump inode_size superblock information befs: remove unnecessary initialization befs: fix typo in befs_sb_info befs: add flags field to validate superblock state befs: fix typo in befs_find_key befs: remove unused BEFS_BT_PARMATCH fs: befs: remove ret variable fs: befs: remove in vain variable assignment fs: befs: remove unnecessary *befs_sb variable fs: befs: remove useless initialization to zero fs: befs: remove in vain variable assignment fs: befs: Insert NULL inode to dentry fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirect ...
| * befs: befs: fix style issues in datastream.cLuis de Bethencourt2016-10-081-15/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixing the following checkpatch.pl errors: ERROR: "foo * bar" should be "foo *bar" + befs_blocknr_t blockno, befs_block_run * run); WARNING: Missing a blank line after declarations + struct buffer_head *bh; + befs_debug(sb, "---> %s length: %llu", __func__, len); WARNING: Block comments use * on subsequent lines + /* + Double indir block, plus all the indirect blocks it maps. (and other instances of these) Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: improve documentation in datastream.cLuis de Bethencourt2016-10-081-95/+98
| | | | | | | | | | | | | | Convert function descriptions to kernel-doc style. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: fix typos in datastream.cLuis de Bethencourt2016-10-081-4/+4
| | | | | | | | | | Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: fix typos in btree.cLuis de Bethencourt2016-10-081-4/+3
| | | | | | | | | | | | | | Fixing typos in kernel-doc function descriptions in fs/befs/btree.c. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: fix style issues in super.cLuis de Bethencourt2016-10-081-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixing the following checkpatch.pl error: ERROR: "foo * bar" should be "foo *bar" +befs_load_sb(struct super_block *sb, befs_super_block * disk_sb) And the following warnings: WARNING: suspect code indent for conditional statements (8, 12) + if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_LE) + befs_sb->byte_order = BEFS_BYTESEX_LE; WARNING: suspect code indent for conditional statements (8, 12) + else if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_BE) + befs_sb->byte_order = BEFS_BYTESEX_BE; WARNING: break quoted strings at a space character + befs_error(sb, "blocksize(%u) cannot be larger" + "than system pagesize(%lu)", befs_sb->block_size, WARNING: line over 80 characters + if (befs_sb->log_start != befs_sb->log_end || befs_sb->flags == BEFS_DIRTY) { Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: fix comment styleLuis de Bethencourt2016-10-081-7/+3
| | | | | | | | | | | | | | | | | | | | | | The description of befs_load_sb was confusing the kernel-doc system since, because it starts with /**, it thinks it will document the function with kernel-doc formatting. Which it isn't. Fix other comment style issues in the file while we are at it. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: add check for ag_shift in superblockLuis de Bethencourt2016-10-081-0/+7
| | | | | | | | | | | | | | | | | | | | | | ag_shift and blocks_per_ag contain the same information in different ways, same as block_shift and block_size do. It is worth checking this two are consistent, but since blocks_per_ag isn't documented as mandatory to use some implementations of befs don't enforce this, so making it non-fatal if they don't match and just having it as a warning. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: dump inode_size superblock informationLuis de Bethencourt2016-10-081-0/+1
| | | | | | | | | | | | | | | | | | befs_dump_super_block() wasn't giving the inode_size information when dumping all elements of the superblock. Add this element to have complete information of the superblock. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: remove unnecessary initializationSalah Triki2016-10-081-1/+1
| | | | | | | | | | | | | | | | There is no need to init block, since it will be overwitten later by iaddr2blockno(). Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: fix typo in befs_sb_infoSalah Triki2016-10-081-1/+1
| | | | | | | | | | | | | | Fixing jornal to Journal. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: add flags field to validate superblock stateSalah Triki2016-10-082-1/+6
| | | | | | | | | | | | | | | | For validating superblock state, add flags field to befs_sb_info, read the state from the disk and check if it is equal to BEFS_DIRTY. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: fix typo in befs_find_keyLuis de Bethencourt2016-10-081-1/+1
| | | | | | | | | | | | | | Fixing skeep to skip. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: remove unused BEFS_BT_PARMATCHLuis de Bethencourt2016-10-082-19/+16
| | | | | | | | | | | | | | | | | | | | befs_btree_find(), the only caller of befs_find_key(), only cares about if the return from that function is BEFS_BT_MATCH or not. It never uses the partial match given with BEFS_BT_PARMATCH. Make the overflow return clearer by having BEFS_BT_OVERFLOW instead of BEFS_BT_PARMATCH. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * fs: befs: remove ret variableSalah Triki2016-10-081-2/+1
| | | | | | | | | | | | | | | | ret is initialized to -EIO and is never modified, so remove ret and use -EIO directly. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove in vain variable assignmentSalah Triki2016-10-081-1/+1
| | | | | | | | | | | | | | | | There is no need to init res, since it will be overwitten later by befs_fblock2brun(). Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove unnecessary *befs_sb variableSalah Triki2016-10-081-2/+1
| | | | | | | | | | | | | | | | Remove *befs_sb and just call BEFS_SB(sb) directly, since the returned value by this function is only used once. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove useless initialization to zeroSalah Triki2016-10-081-1/+1
| | | | | | | | | | | | | | | | node_off is unconditionally set to bt_super.root_node_ptr, so no need to init it to zero. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove in vain variable assignmentSalah Triki2016-10-081-2/+0
| | | | | | | | | | | | | | There is no need to set *value, it will be overwritten later. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: Insert NULL inode to dentrySalah Triki2016-10-081-0/+1
| | | | | | | | | | | | | | | | As VFS expects, lookup inserts NULL inode to dentry when the named inode does not exist. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirectSalah Triki2016-10-081-2/+0
| | | | | | | | | | | | | | | | The calls to brelse are useless since dbl_indir_block and indir_block are NULL. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: Coding style fixSalah Triki2016-10-081-3/+3
| | | | | | | | | | | | | | Constant has to be capitalized. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: Remove redundant validation from befs_find_brun_directSalah Triki2016-10-081-8/+0
| | | | | | | | | | | | | | | | | | The only caller of befs_find_brun_direct is befs_fblock2brun, which already validates that the block is within the range of direct blocks. So remove the duplicate validation. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: fix typo in befs_bt_read_node documentationLuis de Bethencourt2016-10-081-2/+2
| | | | | | | | | | | | Fixing a grammatical error in the documentation. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: in memory free_node_ptr and max_size never readLuis de Bethencourt2016-10-081-2/+0
| | | | | | | | | | | | | | | | The only place the values of free_node_ptr and max_size are read is in befs_dump_index_entry(), which both times it is called, it is passed the on disk superblock. Removing assignment of unused values. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: make consistent use of befs_error()Luis de Bethencourt2016-10-083-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | befs_error() is used in potential errors that could happen in befs to provide informational log messages. befs_debug() is silent when CONFIG_BEFS_DEBUG=no, and very verbose when switched on, which is why it is used for general debugging but not for errors. Fix a few cases where the befs debug utility usage isn't following the expected pattern. To make sure we have consistent information in the logs. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: use simpler while loopLuis de Bethencourt2016-10-081-36/+38
| | | | | | | | | | | | Replace goto with simpler while loop to make befs_readdir() more readable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: remove constant variableLuis de Bethencourt2016-10-081-5/+2
| | | | | | | | | | | | | | Use macro directly instead of via assigning it to an unchanging variable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Salah Triki <salah.triki@gmail.com>
| * befs: avoid dereferencing dentry twiceLuis de Bethencourt2016-10-081-1/+1
| | | | | | | | | | | | | | No need to dereference dentry twice to get the name when we already have it stored in a local variable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove comment that confuses kernel-docLuis de Bethencourt2016-10-081-4/+0
| | | | | | | | | | | | | | | | This comment with a mysterious unfinished line confuses the kernel-doc system since, because it starts with /**, it thinks it is documenting a function. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: check silent flag before logging errorLuis de Bethencourt2016-10-081-1/+2
| | | | | | | | | | | | | | | | Log error only when silent flag is not set. Fixes: dbe6460388bc ("fs/befs/linuxvfs.c: check silent flag before logging errors") Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Salah Triki <salah.triki@gmail.com>
| * fs: befs: replace befs_bread by sb_breadSalah Triki2016-10-084-30/+4
| | | | | | | | | | | | | | | | | | Since befs_bread merely calls sb_bread, replace it by sb_bread. Link: http://lkml.kernel.org/r/1466800258-4542-1-git-send-email-salah.triki@gmail.com Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * befs: remove unused functionsLuis de Bethencourt2016-10-081-12/+0
| | | | | | | | | | | | | | | | befs_iaddr_is_empty() and befs_brun_size() are unused. Remove them. Link: http://lkml.kernel.org/r/1465700235-22881-3-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * befs: fix function name in documentationLuis de Bethencourt2016-10-081-1/+1
| | | | | | | | | | | | | | | | | | Documentation of function befs_load_cb() lists it as load_befs_sb(). Fix the misnomer. Link: http://lkml.kernel.org/r/1465700235-22881-2-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * befs: check return of sb_min_blocksizeLuis de Bethencourt2016-10-081-1/+6
| | | | | | | | | | | | | | | | Confirm sb_min_blocksize() succeeded before continuing. Link: http://lkml.kernel.org/r/1465700235-22881-1-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * fs: befs: remove useless pr_err in befs_init_inodecache()Salah Triki2016-10-081-4/+2
| | | | | | | | | | | | | | Remove pr_err since kmem_cache_create log error and dump stack. Link: http://lkml.kernel.org/r/e6d03cbc9542495dc6174b59e32fcd41c1393cfc.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org>
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