linux-toradex.git/drivers/power/max17042_battery.c, branch v3.7.9

max17042_battery: Support CHARGE_COUNTER power supply attribute

2012-06-19T23:48:08+00:00

This patch adds the support for CHARGE_COUNTER power supply attribute
to max17042/47 driver.

Note:QH(Charge Counter) register is not documented in max17042 the Spec.

Signed-off-by: Ramakrishna Pallala 
Signed-off-by: Anton Vorontsov

max17042_battery: Add support for max17047/50 chip

2012-05-06T03:28:11+00:00

max17047 is improved version of max17042 chip. It has few HW bug
fixes with minor changes in register set.

max17050 is same as max17047 chip except its silicon packging. So from
driver's point of view there is no difference btw max1047 and max1050.

This patch adds the support to dynamically detect the chip type and
adds steps to initialize the max17047 chip.

Signed-off-by: Ramakrishna Pallala 
Signed-off-by: Anton Vorontsov

max17042_battery: Handle irq request failure case

2012-05-05T10:31:04+00:00

suspend/resume functions take action based upon the fuel gauge
interrupt. If the rquest irq fails we should assign 0 to client->irq.

Signed-off-by: Ramakrishna Pallala 
Signed-off-by: Anton Vorontsov

max17042_battery: Fix power supply and irq registration ordering

2012-05-05T06:42:56+00:00

IRQ registration should happen only after power supply object usable.
This patch fixes the ordering of power supply and irq registration
calls.

Signed-off-by: Ramakrishna Pallala 
Signed-off-by: Anton Vorontsov

power_supply: Add voltage_ocv property and use it for max17042 driver

2012-05-05T03:44:29+00:00

This adds a new sysfs file called 'voltage_ocv' which gives the
Open Circuit Voltage of the battery.

This property can be used for platform shutdown policies and
can be useful for initial capacity estimations.

Note: This patch is generated against linux-next branch.

Signed-off-by: Ramakrishna Pallala 
Signed-off-by: Anton Vorontsov

max17042_battery: Move dev_pm_ops struct under CONFIG_PM

2012-05-05T03:40:27+00:00

This is what we do for the rest of the drivers, saves some bytes.

Plus a small style change while at it.

Signed-off-by: Anton Vorontsov

max17042_battery: Add suspend/resume hooks

2012-05-05T02:37:37+00:00

This patch adds suspend/resume methods to the driver.

In suspend method irq line is disabled to avoid i2c
read/write errors from the interrupt handler as the
i2c bus itself could be in suspend state.
In resume function irq line will be re-enabled.

Signed-off-by: Ramakrishna Pallala 
Signed-off-by: Anton Vorontsov

max17042_battery: Fix driver exit function

2012-05-05T02:35:13+00:00

This patch fixes driver's remove function: it should free the IRQ.

Signed-off-by: Ramakrishna Pallala 
Signed-off-by: Anton Vorontsov

max17042_battery: Fix a couple buffer overflows

2012-05-05T02:24:48+00:00

There are a couple issues here caused by confusion between sizeof()
and ARRAY_SIZE().  "table_size" should be the number of elements, but we
should allocate it with kcalloc() so that we allocate the correct number
of bytes.

In max17042_init_model() we don't allocate enough space so we go past
the end of the array in max17042_read_model_data() and
max17042_model_data_compare().

In max17042_verify_model_lock() we allocate the right amount of space
but we call max17042_read_model_data() with the wrong number of elements
and also in the for loop we go past the end of the array.

Signed-off-by: Dan Carpenter 
Acked-by: Dirk Brandewie 
Signed-off-by: Anton Vorontsov

max17042_battery: Clean up interrupt handling

2012-03-26T16:41:29+00:00

Max17042 driver has dummy hardIRQ function which
does nothing but waking the threaded handler.

This patch removes the hardIRQ function and also
modifies the interrupt type to falling edge. While
we are there, change the macros to comply with the
Data sheet.

Signed-off-by: Ramakrishna Pallala 
Signed-off-by: Anton Vorontsov