Commit Graph

9 Commits

Author SHA1 Message Date
Grazvydas Ignotas afbc74fdc5 power_supply: bq27x00: fix voltage and current units
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>
2010-02-27 18:09:24 +03:00
Grazvydas Ignotas 4e924a814a power_supply: bq27x00: add status and time properties
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>
2010-02-27 18:09:23 +03:00
Grazvydas Ignotas e20908d95e power_supply: bq27x00: add BQ27500 support
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>
2010-02-16 21:26:52 +03:00
Grazvydas Ignotas b4de360815 power_supply: bq27x00: fix temperature conversion
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>
2010-02-16 21:26:46 +03:00
Grazvydas Ignotas ba96f8717e power_supply: bq27x00: remove unused struct fields
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>
2010-02-16 21:26:37 +03:00
Grazvydas Ignotas 97f70c23a1 power_supply: bq27x00: remove double endian swap
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>
2010-02-16 21:26:14 +03:00
Adam Buchbinder b731d7b6a7 trivial: Fix misspelling of "Celsius".
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>
2009-03-30 15:22:03 +02:00
Harvey Harrison 8aef7e8f8d bq27x00_battery: use unaligned access helper
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>
2008-09-26 03:46:12 +04:00
Rodolfo Giometti b996ad0e9f power_supply: Support for Texas Instruments BQ27200 battery managers
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>
2008-09-01 02:46:12 +04:00