linux-toradex.git/drivers/mfd/tps65910.c, branch v4.19

mfd: tps65910: Move an assignment in tps65910_sleepinit()

2018-05-16T08:21:48+00:00

Move the assignment for the local variable "dev" so that its setting
will be performed after a configuration check by this function.

Signed-off-by: Markus Elfring 
Signed-off-by: Lee Jones

mfd: tps65910: Delete an unnecessary variable initialisation in tps65910_sleepinit()

2018-05-16T08:21:48+00:00

The local variable "dev" will be reassigned by a following statement.
Thus omit the explicit initialisation at the beginning.

Signed-off-by: Markus Elfring 
Signed-off-by: Lee Jones

mfd: tps65910: Delete an unnecessary variable initialisation in four functions

2018-05-16T08:21:48+00:00

The local variable "ret" will be set to an appropriate value a bit later.
Thus omit the explicit initialisation at the beginning.

Signed-off-by: Markus Elfring 
Signed-off-by: Lee Jones

mfd: tps65910: Delete an error message for a failed memory allocation in tps65910_parse_dt()

2018-05-16T08:21:48+00:00

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring 
Signed-off-by: Lee Jones

regulator: tps65910: wire up sleep control configuration

2017-06-15T17:23:27+00:00

This enables configuring the PMIC's sleep mode via device-tree.

A pointer indirection to sleep mode data is removed, as it simplifies
the implementation slightly. In current kernel tree, platform data
structure is not used outside MFD cell drivers.

Signed-off-by: Michał Mirosław 
Signed-off-by: Mark Brown

mfd: tps65910: Use devm_mfd_add_devices and devm_regmap_add_irq_chip

2016-05-09T12:27:39+00:00

Use devm_mfd_add_devices() for adding MFD child devices and
devm_regmap_add_irq_chip() for IRQ chip registration.

This reduces the error code path and .remove callback for removing
MFD child devices and deleting IRQ chip data.

Signed-off-by: Laxman Dewangan 
Signed-off-by: Lee Jones

mfd: tps65910: Use devm_mfd_add_devices() for mfd_device registration

2016-04-19T06:56:56+00:00

Use devm_mfd_add_devices() for MFD devices registration and remove
the call of mfd_remove_devices() from .remove callback to remove
MFD child-devices. This is done by managed device framework.

CC: Tony Lindgren 
Signed-off-by: Laxman Dewangan 
Signed-off-by: Lee Jones

mfd: Drop owner assignment from i2c_drivers

2015-08-11T14:08:48+00:00

i2c_driver does not need to set an owner because i2c_register_driver()
will set it.

Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Lee Jones

mfd: tps65910: Work around silicon erratum SWCZ010

2014-09-26T07:15:48+00:00

http://www.ti.com/lit/pdf/SWCZ010:
  Glitch on SDA-SCL not managed correctly by the I2C IP

Impact:
The standard specifies that the I2C transfer should restart on a start
event in all cases. The current design does not support two consecutive
Start conditions. This can cause the first real access after such a
glitch to be corrupted.

Description:
An unexpected glitch on SDA and SCL can generate a wrong start event.
In the current design, the SCL line must toggle two times to detect a
new start event and completely restart the I2C access; hence the real
start event is not detected in the case of a single SCL toggle.

Workaround:
Repeat I2C access.

A simpler workaround is to make a dummy transfer just before the first
access to the tps65910 chip. This can be done unconditionally.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) 
Acked-by: Mark Brown 
Signed-off-by: Lee Jones

mfd: tps65910: Rid data size incompatibility warn when building for 64bit

2014-07-09T15:38:01+00:00

Extinguishes:

../drivers/mfd/tps65910.c: In function ‘tps65910_parse_dt’:
../drivers/mfd/tps65910.c:404:14:
	warning: cast from pointer to integer of different size

Signed-off-by: Lee Jones