The ISP1704/1707 chip can be put to full power down
state by asserting the CHIP_SEL line. This patch enables
platform or board specific hooks to put the device into
power down mode in case not needed.
This patch is a preparation for enabling this powering
routine in n900 (rx-51) devices.
Thanks to Heikki Krogerus for helping out with the patch.
Signed-off-by: Kalle Jokiniemi <[email protected]>
Acked-By: Heikki Krogerus <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>
MAX8903 is an integrated battery charger and selector with two
power inputs (USB and AC adapter). This driver enables the charger,
handles interrupts, and provides power-supply-class information to
userland.
Tested on Exynos4 NURI / S5PC210 SLP7 boards.
Signed-off-by: MyungJoo Ham <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>
With the support of platform data, now adding support for option i2c
retries on read/write failures. Ths is specified through the optional
platform data.
Signed-off-by: Rhyland Klein <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>
Adding support for an optional gpio for battery detection. This is
passed in through the i2c platform data. It also accepts another
field, battery_detect_present to signify the gpio state which means
the battery is present, either 0 (low) or 1 (high).
Signed-off-by: Rhyland Klein <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>
This patch adds support for the bq27000 battery to the bq27x00 driver.
The bq27000 is similar to the bq27200 except that it uses the HDQ bus
instead of I2C to communicate with the host system.
The driver is implemented as a platform driver. The driver expects to be
provided with a read callback function through its platform data. The read
function is assumed to do the lowlevel HDQ handling and read out the value
of a certain register.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Tested-by: Grazvydas Ignotas <[email protected]>
The MAX17042 is a fuel gauge with an I2C interface for lithium-ion
betteries. Unlike its predecessor MAX17040, MAX17042 uses 16bit
registers. Besides, MAX17042 has much more features than MAX17040; e.g.,
a thermistor, current and current accumulation measurement, battery
internal resistance estimate, average values of measurement, and others.
This patch implements a driver for MAX17042.
In this initial release, we have implemented the most basic features of
a fuel gauge: measure the battery capacity and voltage.
Signed-off-by: MyungJoo Ham <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>
This patch adds a simple driver for chargers indicating their online
status through a GPIO pin.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Signed-off-by: Anton Vorontsov <[email protected]>
Kalle Jokiniemi