Commit graph

13 commits

Author SHA1 Message Date
Thierry Reding
62f6b08793 tps6586x: Add device tree support
This commit adds device tree support for the TPS6586x regulator.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-04 13:25:16 +01:00
Axel Lin
26bc4e0cc5 mfd: Set tps6586x bits if new value is different from the old one
It does not make sense to write new value only when all the bit_mask
bits are zero.
We need to write new value if the bit mask fields of new value is
not equal to old value.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-12-20 18:50:56 +01:00
Vincent Palatin
e6f1945b9e mfd: Fix tps6586x GPIO value setting
In the current code, every time we set a TPS6586x GPIO pin,
the tps6586x_gpio_set function is resetting all other GPIO pins.
We need to update the right GPIOxOUT bit of the GPIOSET2 register instead
of overriding the full value.

Tested by setting sequentially GPIO2 and GPIO3 and verifying the
pins voltage.

Change-Id: I560edde146c5425cce37432c4ee91569eea5adcf
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-05-26 19:45:31 +02:00
Thomas Gleixner
d5bb122165 mfd: Cleanup irq namespace
Converted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-27 00:09:51 +01:00
Vincent Palatin
6f9f13bf9b mfd: Invert tps6586x GPIO and subdevices initialization
When using a fixed voltage regulator triggered by a TPS6586x GPIO,
this allows to declare and initialize it conveniently from the "subdev" list.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-23 10:41:45 +01:00
vwadekar@nvidia.com
4b57018dcd mfd: Avoid tps6586x burst writes
tps6586 does not support burst writes. i2c writes have to be
1 byte at a time.

Cc: stable@kernel.org
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-02 10:57:50 +01:00
Mark Brown
96e824bdf3 mfd: Convert tps6586x driver to new irq_ API
The genirq core is being updated to supply struct irq_data to irq_chip
operations rather than an irq number. Update the tps6586x driver to the
new APIs.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-14 12:38:08 +01:00
Stephen Warren
4d1cdbf696 mfd: Remove tps6586x device ID check
... and convert it to a dev_info print at probe time.

There are many variants of this chip with different values of VERSIONCRC.
The set of values is large, and not useful to enumerate. All are SW
compatible. The difference lies in default settings of the various power
rails, and other similar differences. The driver, or clients of the
driver, shouldn't be affected by this, since all rails should be
programmed into the desired state in all cases for correct operation.

Derived-from-code-by: Andrew Chew <achew@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-01-14 12:37:48 +01:00
Andrew Chew
d1f92f0575 mfd: Add TPS658621C device ID
The interface for this device should be identical to that of the
TPS658521A.

Signed-off-by: Andrew Chew <achew@nvidia.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:30:18 +02:00
Gary King
c26448c484 mfd: Add basic tps6586x interrupt support
Add support for enabling and disabling tps6586x subdevice interrupts

Signed-off-by: Gary King <gking@nvidia.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:29:28 +02:00
Axel Lin
929980ab1b mfd: Fix tps6586x_add_subdevs error path
1. return -ENOMEM if platform_device_alloc() fail.
2. call platform_device_put() if platform_device_add() fail.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:28:59 +02:00
Axel Lin
4b751cf5de mfd: Free tps6586x allocated resources when unload the module
For the resources allocated in tps6586x_i2c_probe(),
we need to free it in tps6586x_i2c_remove().

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-10-29 00:28:53 +02:00
Mike Rapoport
c6c1933263 mfd: Add TPS6586x driver
Add mfd core driver for TPS6586x PMICs family.
The driver provides I/O access for the sub-device drivers and performs
regstration of the sub-devices based on the platform requirements.
In addition it implements GPIOlib interface for the chip GPIOs.

TODO:
        - add interrupt support
        - add platform data for PWM, backlight leds and charger

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12 11:28:12 +02:00