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* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* power_supply: bq27x00: fix voltage and current unitsGrazvydas Ignotas2010-02-271-3/+3
| | | | | | | | The chip returns voltage and current in mV and mA, but power supply class uses uV and uA, so add missing conversion. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* power_supply: bq27x00: add status and time propertiesGrazvydas Ignotas2010-02-271-2/+79
| | | | | | | | | The BQ27x00 series of chips can report time-to-empty and time-to-full, so let's add corresponding properties. Also report charge status based on status flag register. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* power_supply: bq27x00: add BQ27500 supportGrazvydas Ignotas2010-02-161-28/+49
| | | | | | | | | | | BQ27500 is newer fuel gauge chip from TI with slightly changed register layout and some different register semantics. Add new i2c ID for it and handle differences where needed. Also rename bq27200 functions to bq27x00, as they are no longer bq27200 specific. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* power_supply: bq27x00: fix temperature conversionGrazvydas Ignotas2010-02-161-2/+2
| | | | | | | | The power supply class requires tenths of degree Celsius. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* power_supply: bq27x00: remove unused struct fieldsGrazvydas Ignotas2010-02-161-4/+0
| | | | | | | | These are probably leftover from old TI code. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* power_supply: bq27x00: remove double endian swapGrazvydas Ignotas2010-02-161-8/+3
| | | | | | | | | | | | | The bq27x00 registers are little endian, so just read them as such and don't do double endian swap on LE machines. This also gets rid of strange looking shift that was done after reading 8bit register because endian swap in bq27x00_read() was messing it up. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Acked-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* trivial: Fix misspelling of "Celsius".Adam Buchbinder2009-03-301-1/+1
| | | | | | | A few comments say "Celcius"; this fixes them. No code changes. Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* bq27x00_battery: use unaligned access helperHarvey Harrison2008-09-261-3/+2
| | | | | | | | | | | | | Remove hand-rolled get_unaligned_be16, this points to a possible bug as bq27x00_read does another endian byteswap which sparse notices: drivers/power/bq27x00_battery.c:81:14: warning: cast to restricted __be16 Which should probably be checked. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* power_supply: Support for Texas Instruments BQ27200 battery managersRodolfo Giometti2008-09-011-0/+382
These battery managers came in two different packages: one for I2C busses (BQ27200) and one for HDQ busses (BQ27000). This driver currently supports only the I2C chip version but the code is designed in order to easily allow the HDQ chip version integration. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: make things static, use kasprintf()] Signed-off-by: Rodolfo Giometti <giometti@linux.it> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
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