Add device tree based initialization support for TI's tps65910 pmic.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This change removes the read/write callback functions in favor of common
regmap accessors inside the header file. This change also makes use of
regmap_read/write for single register access which maps better onto what this
driver actually needs.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
A warning was being generated by the reference from tps65910_i2c_probe()
to tps65910_sleepinit() since the latter was annotated as __init but the
former was unannotated. Since these functions can only be called during
device init make them both __devinit, and while we're at it also annotate
tps65910_i2c_remove() __devexit for symmetry.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Adding support for device sleep through the external input control
signal "SLEEP".
Changing the SLEEP signal state can switch the device into SLEEP and
ACTIVE state.
Also adding sleep configuration for different resources so that they
should be keep on during sleep state of device.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This was the copy-paste issue in reg cache support code where
variable name for regmap config was not really starting from
the device name, it was starting from some other device name.
Fixing this so that variable name contains actual device name.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Using regmap apis for accessing the device registers and
using RBTREE caching mechanims for caching registers.
Enabling caching of the registers which is used for voltage
controls. By doing this, the modify_bits operation is faster as
it does not involve the i2c register read from device, just read
from cache. This results faster set voltage operation.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
irq_base of the tps65910 irq platform data should be
initialized with the board provided irq_base data.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
TPS65910 can be used without interrupts.
Hence let probe succeed in case interrupt can't be
configured and let Kernel only to complain about it
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The function is not actually cleaing the bitmask.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
In drivers/mfd/tps65910.c:tps65910_i2c_probe() there's potential for a
tiny optimization.
We assign to init_data->irq and init_data->irq_base long before we
need them, and there are two potential exits from the function before
they are needed.
Moving the assignments below these two potential exits means we
completely avoid doing them in these two (failure) cases.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
There are a couple of situations where we leak init_data in
drivers/mfd/tps65910.c:tps65910_i2c_probe() - this patch should take
care of them.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The tps65910_irq_exit() cleanup function was generating a warning from
sparse due to the lack of a prototype. This wasn't causing GCC warnings
as the driver wasn't cleaning up its IRQs on exit at all so there was no
use of an unprototyped function.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The TPS65911 is the next generation of the TPS65910 family of
PMIC chips. It adds a few features:
- Watchdog Timer
- PWM & LED generators
- Comparators for system control status
It also adds a set of Interrupts and GPIOs, among other things.
The driver exports a function to identify between different
versions of the tps65910 family, allowing other modules to
identify the capabilities of the current chip.
Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
If bytes == (TPS65910_MAX_REGISTER + 1), we have a buffer overflow when
doing memcpy(&msg[1], src, bytes).
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This module controls the interrupt handling for the tps chip. The
interrupt sources are the following:
- GPIO falling/rising edge detection
- Battery voltage below/above threshold
- PWRON signal
- PWRHOLD signal
- Temperature detection
- RTC alarm and periodic event
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
TPS65910 has one configurable GPIO that can be used for several
purposes. Subsequent versions of the TPS chip support more than
one GPIO.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
The TPS65910 chip is a power management IC for multimedia and handheld
devices. It contains the following components:
- Regulators
- GPIO controller
- RTC
The tps65910 core driver is registered as a platform driver and provides
communication through I2C with the host device for the different
components.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
