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* hwmon: (w83795) Drop _NUM constantsJean Delvare2010-10-281-10/+6
| | | | | | Consistently use ARRAY_SIZE() to control for loops. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Drop REST_VLT_BEGIN/ENDJean Delvare2010-10-281-6/+3
| | | | | | | Get rid of REST_VLT_BEGIN and REST_VLT_END, they don't make the code more readable. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Fix parity checksJean Delvare2010-10-281-4/+4
| | | | | | | x % 1 is obviously wrong, as it always evaluates to 0. You want x % 2, or x & 1, for parity checking. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Get rid of VRLSB_SHIFTJean Delvare2010-10-281-10/+5
| | | | | | | | | | VRLSB_SHIFT is a non-sense, the actual shift depends on the sensor type (fans need 4, other sensors need 6). Get rid of it to prevent any confusion. Also get rid of the useless masking, the meaningful bits are always the MSb so there's nothing to mask out after shifting. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Avoid reading the same register twiceJean Delvare2010-10-281-2/+9
| | | | | | | Shorten driver load time by avoiding duplicate register access during initialization. This saves 112 ms on modprobe on my test system. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Rework beep_enable implementationJean Delvare2010-10-281-38/+2
| | | | | | | | Handle beep_enable just like all other beep bits. It doesn't need anything special, so let's avoid redundant code. This also saves a duplicate register read at initialization time. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Report PECI agent Tbase valuesJean Delvare2010-10-281-0/+13
| | | | | | | On systems with PECI, report PECI agent Tbase temperature values. This is informative only. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Properly handle negative temperaturesJean Delvare2010-10-281-13/+7
| | | | | | | The temperature registers hold regular 2's complement values, no need to add any arithmetics. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Rename temperature limit attributesJean Delvare2010-10-281-10/+10
| | | | | | | Follow the standard for temperature limit attribute naming, so that libsensors will pick the values. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Fix PWM duty cycle frequency attributesJean Delvare2010-10-281-28/+62
| | | | | | | | | | | | | The PWM duty cycle frequenty attributes are improperly named (fanN_div instead of pwmN_div) and contain raw values instead of actual frequencies. Rename them and fix their contents. Also improve the logic when the user asks for a new frequency, to always pick the closest supported frequency. The algorithm could certainly be optimized, but the operation is infrequent enough that I don't think it's worth the effort. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Add support for dynamic in0-2 limitsJean Delvare2010-10-281-0/+56
| | | | | | | | The W83795G can be configured to set the in0, in1 and/or in2 voltage limits dynamically based on VID input pins. Switch the respective sysfs attributes to read-only. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Fix LSB reading of fan speedsJean Delvare2010-10-281-5/+5
| | | | | | | Misplaced parentheses caused the wrong register value to be read, resulting in random LSB for fan speed values and limits. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Clean up probe functionJean Delvare2010-10-281-57/+34
| | | | | | | | | | * The data structure is zalloc'd, so no need to set individual fields to 0 explicitly. * Refactor the handling of pins that can be used for either temperature or voltage monitoring. * Misc other clean-ups. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Fix in17-in20 gain factorJean Delvare2010-10-281-3/+3
| | | | | | | Gain bit set means 1x gain and cleared means 8x gain, not the other way around. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Only start monitoring if neededJean Delvare2010-10-281-3/+10
| | | | | | This saves an SMBus write if monitoring was already enabled. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Add const markersJean Delvare2010-10-281-8/+10
| | | | | | | Attribute structures can be made const. Same for the I2C address list. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Only create fan[1-8]_target files when neededJean Delvare2010-10-281-23/+4
| | | | | | | | Only create fan[1-8]_target files when the fan in question can be controlled (PWM output is present.) Also name these files according to the standard. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Move PWM attributes to a dedidated arrayJean Delvare2010-10-281-10/+8
| | | | | | | Use a dedicated 2D array for PWM attributes. This way, PWM attributes are handled the same way as other attributes, this is more consistent. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Use 2D arrays for many device attributesJean Delvare2010-10-281-29/+37
| | | | | | | | | | | Use 2D arrays for in, fan, temp and dts device attributes. Using linear arrays is too risky as we have to skip some groups depending on the device model and configuration. Adding or removing an attribute would let the driver build silently but then it would crash at runtime. With 2D arrays, the consistency checking happens at build time, which is much safer. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Merge w83795_create_files and w83795_remove_filesJean Delvare2010-10-281-38/+17
| | | | | | | | | | Functions w83795_create_files and w83795_remove_files iterate over the same set of files, just calling a different function. Merge them into a single function which takes the action as a parameter. This saves code, and also ensure that file creation and deletion are in sync. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Move file creation to a separate function tooJean Delvare2010-10-281-55/+66
| | | | | | | Function w83795_probe() is way too big, move file creation to a separate function to make it more readable. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Move files removal to a separate functionJean Delvare2010-10-281-50/+31
| | | | | | | | Sysfs files must be removed on device removal but also when device registration fails. Move the code to a separate function to avoid code redundancy. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Improve detection routineJean Delvare2010-10-281-23/+57
| | | | | | | Check for additional identification registers. Improve debugging messages on failed detection. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Refactor bank selectionJean Delvare2010-10-281-43/+50
| | | | | | | | Move the bank selection code to a separate function, to avoid duplicating it in read and write functions. Improve error reporting on register access error. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Drop duplicate enumJean Delvare2010-10-281-19/+15
| | | | | | | | Enum chips and chip_types are redundant, get rid of the former. Fix the detection code to properly identify the chip variant and name the client accordingly. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (w83795) Misc cleanupsJean Delvare2010-10-281-6/+1
| | | | | | | | * Improve driver description. * Drop unused macro. * Drop unreachable code. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: New driver for the W83795G/ADG monitoring chipsWei Song2010-10-283-0/+2149
| | | | | | | | | | | | | | | | | | There is still much work needed, but I wanted to give Wei the credit he deserves. I've merged some of my own fixes already, to make gcc and checkpatch happy. Individual fixes and improvements from me will follow. [JD: Fix build errors] [JD: Coding style cleanups] [JD: Get rid of forward declarations] [JD: Drop VID support] [JD: Drop fault output control feature] [JD: Use lowercase for inline function names] [JD: Use strict variants of the strtol/ul functions] [JD: Shorten the read and write function names] Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (s3c-hwmon) Depend on S3C_ADCMaurus Cuelenaere2010-10-281-4/+4
| | | | | | | | | This way we don't need to modify Kconfig every time a new SoC comes along to make this driver support it. Also fix some typos while I'm at it. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (s3c-hwmon) Use a real mutexThomas Gleixner2010-10-281-4/+4
| | | | | | | | | The semaphore which protects the ADC is semantically a mutex. Use a real mutex. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm75) Trivial changes to pacify the checkpatchShubhrajyoti D2010-10-281-21/+23
| | | | | | | Some trivial changes to pacify the checkpatch. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm75) Make the writing to sysfs more robustShubhrajyoti D2010-10-281-1/+6
| | | | | | | | | Currently we get the checkpatch warning consider using strict_strtol in preference to simple_strtol. Also we should not allow any partially numeric values. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Add support for the W83L771W/GJean Delvare2010-10-283-9/+30
| | | | | | | | | I was wondering if that chip ever existed publicly... Apparently yes, so add support for it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
* hwmon: (lm90) Add support for update_interval sysfs attributeGuenter Roeck2010-10-281-5/+92
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Introduce capability flag to indicate broken ALERT functionalityGuenter Roeck2010-10-281-3/+6
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Introduce chip parameter structureGuenter Roeck2010-10-281-32/+60
| | | | | | | | Instead of using switch/case and if statements in probe, define chip specific functionality in a parameter structure array. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Rearrange code to no longer require forward declarationsGuenter Roeck2010-10-281-267/+256
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Add support for max6695 and max6696Guenter Roeck2010-10-283-24/+247
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Add support for extra features of max6659Guenter Roeck2010-10-282-10/+64
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Add explicit support for max6659Guenter Roeck2010-10-282-13/+23
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Simplify set_temp11 register calculationsGuenter Roeck2010-10-281-27/+28
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Introduce function to delete sysfs filesGuenter Roeck2010-10-281-7/+11
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Introduce device feature bitsGuenter Roeck2010-10-281-14/+26
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (lm90) Fix checkpatch errorsGuenter Roeck2010-10-281-25/+51
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: Add tempX_emergency attribute to sysfs ABIGuenter Roeck2010-10-281-0/+15
| | | | | Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (k8temp) Remove superfluous CPU family checkAndreas Herrmann2010-10-281-29/+22
| | | | | | | | The family check in k8temp is not required because the driver is already bound to a northbridge device only used with K8 CPUs. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* Merge branch 'upstream-merge' of ↵Linus Torvalds2010-10-2733-1131/+2510
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'upstream-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (50 commits) ext4,jbd2: convert tracepoints to use major/minor numbers ext4: optimize orphan_list handling for ext4_setattr ext4: fix unbalanced mutex unlock in error path of ext4_li_request_new ext4: fix compile error in ext4_fallocate() ext4: move ext4_mb_{get,put}_buddy_cache_lock and make them static ext4: rename mark_bitmap_end() to ext4_mark_bitmap_end() ext4: move flush_completed_IO to fs/ext4/fsync.c and make it static ext4: rename {ext,idx}_pblock and inline small extent functions ext4: make various ext4 functions be static ext4: rename {exit,init}_ext4_*() to ext4_{exit,init}_*() ext4: fix kernel oops if the journal superblock has a non-zero j_errno ext4: update writeback_index based on last page scanned ext4: implement writeback livelock avoidance using page tagging ext4: tidy up a void argument in inode.c ext4: add batched_discard into ext4 feature list ext4: Add batched discard support for ext4 fs: Add FITRIM ioctl ext4: Use return value from sb_issue_discard() ext4: Check return value of sb_getblk() and friends ext4: use bio layer instead of buffer layer in mpage_da_submit_io ...
| * Merge branch 'next' into upstream-mergeTheodore Ts'o2010-10-2733-1131/+2510
| |\ | | | | | | | | | | | | | | | | | | Conflicts: fs/ext4/inode.c fs/ext4/mballoc.c include/trace/events/ext4.h
| | * ext4,jbd2: convert tracepoints to use major/minor numbersTheodore Ts'o2010-10-272-156/+251
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unfortunately perf can't deal with anything other than direct structure accesses in the TP_printk() section. It will drop dead when it sees jbd2_dev_to_name() in the "print fmt" section of the tracepoint. Addresses-Google-Bug: 3138508 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| | * ext4: optimize orphan_list handling for ext4_setattrDmitry Monakhov2010-10-271-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Surprisingly chown() on ext4 is not SMP scalable operation. Due to unconditional orphan_del(NULL, inode) in ext4_setattr() result in significant performance overhead because of global orphan mutex, especially in no-journal mode (where orphan_add() is noop). It is possible to skip explicit orphan_del if possible. Results of fchown() micro-benchmark in no-journal mode while (1) { iteration++; fchown(fd, uid, gid); fchown(fd, uid + 1, gid + 1) } measured: iterations per millisecond | nr_tasks | w/o patch | with patch | | 1 | 142 | 185 | | 4 | 109 | 642 | Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| | * ext4: fix unbalanced mutex unlock in error path of ext4_li_request_newNicolas Kaiser2010-10-271-14/+8
| | | | | | | | | | | | | | | Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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