Commit Graph

14 Commits

Author SHA1 Message Date
Guenter Roeck
43f33b6e59 hwmon: (pmbus) Add 'phase' parameter where needed for multi-phase support
In preparation for multi-phase support, add 'phase' parameter to read_word
and set_page functions. Actual multi-phase support will be added in
a subsequent patch.

Cc: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-03-08 20:35:47 -07:00
Thomas Gleixner
74ba9207e1 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  675 mass ave cambridge ma 02139 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 441 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:36:45 +02:00
Guenter Roeck
2c052d4280 hwmon: (pmbus) Use BIT macro
Using the BIT macro makes the code a little easier to read.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-08-19 09:08:17 -07:00
Guenter Roeck
1640eaecc4 hwmon: (pmbus/zl6100) Add support for VMON/VDRV
Some of the ZL6100 compatible chips support monitoring a separate voltage pin,
VMON (ZL2004) or VDRV (ZL91xx). Report it as in2 / vmon.

The chips support implicit warning limits for VMON/VDRV, as percentage of the
respective critical voltage. Support by reading/writing the critical voltages
and calculating the associated warning voltages.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-02-06 09:58:05 -08:00
Guenter Roeck
3360a106f8 hwmon: (zl6100) Add support for ZL9101M and ZL9117M
ZL9101M and ZL9117M are compatible to ZL6100. Add support to the zl6100 driver.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
2012-03-18 18:27:53 -07:00
Guenter Roeck
dd285ad737 hwmon: (pmbus) Simplify remove functions
Since devm_kzalloc() is now used to allocate driver memory, the client
driver remove function has no purpose other than to call pmbus_do_remove().
This means we can get rid of it by redefining pmbus_do_remove() to use the
same prototype, and pointing to it directly.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-03-18 18:27:46 -07:00
Guenter Roeck
8b313ca7f1 hwmon: (pmbus) Convert pmbus drivers to use devm_kzalloc
Marginally less code and eliminate the possibility of memory leaks.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-03-18 18:27:45 -07:00
Axel Lin
f0967eea80 hwmon: convert drivers/hwmon/* to use module_i2c_driver()
This patch converts the drivers in drivers/hwmon/* to use the
module_i2c_driver() macro which makes the code smaller and a bit simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Corentin Labbe <corentin.labbe@geomatys.fr>
Cc: Dirk Eibach <eibach@gdsys.de>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Cc: Steve Glendinning <steve.glendinning@smsc.com>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Guillaume Ligneul <guillaume.ligneul@gmail.com>
Cc: David George <david.george@ska.ac.za>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Cc: Marc Hulsman <m.hulsman@tudelft.nl>
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-03-18 18:26:50 -07:00
Guenter Roeck
fecfb64422 hwmon: (zl6100) Enable interval between chip accesses for all chips
Intersil reports that all chips supported by the zl6100 driver require
an interval between chip accesses, even ZL2004 and ZL6105 which were thought
to be safe.

Reported-by: Vivek Gani <vgani@intersil.com>
Cc: stable@vger.kernel.org # 3.2+
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-03-14 09:17:03 -07:00
Guenter Roeck
7ad6307ad6 hwmon: (zl6100) Maintain delay parameter in driver instance data
A global delay parameter has the side effect of being overwritten with 0 if a
single ZL2004 or ZL6105 is instantiated. If other chips supported by the same
driver are in the system, this will result in access errors for those chips.

To solve the problem, keep a per-instance copy of the delay parameter, and do
not change the original parameter.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org # 3.1+
Acked-by: Jean Delvare <khali@linux-fr.org>
2012-03-07 09:48:43 -08:00
Guenter Roeck
56badacb92 hwmon: (pmbus/zl6100) Only instantiate external temperature sensor if enabled
BMR4xx devices don't have an external temperature sensor,
and instantiating it does not provide value anyway if it is disabled.
Only instantiate it if it is enabled.

Also optimize wait time between I2C chip accesses in the probe function, and
replace unnecessary check for support for I2C_FUNC_SMBUS_READ_BYTE_DATA with
now required support for I2C_FUNC_SMBUS_READ_WORD_DATA.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
2012-01-05 08:19:28 -08:00
Guenter Roeck
443830f6fd hwmon: (pmbus/zl6100) Add support for Ericsson BMR45[0,1] and BMR46[2,3,4]
Add support for Ericsson BMR450, BMR451, BMR462, BMR463, and BMR464, which are
based on ZL2005 and ZL2008, to zl6100 driver. Remove BMR450 and BMR451 device
IDs from generic PMBus driver.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
2012-01-05 08:19:28 -08:00
Guenter Roeck
bc581e6fcc hwmon: (pmbus/zl6100) Add support for ZL2005
Add explicit support for ZL2005. Functionality is almost the same as with other
Zilker Labs / Intersil chips, but limit register detection does not work reliably.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
2012-01-05 08:19:27 -08:00
Guenter Roeck
200855e52d hwmon: (pmbus) Add support for Intersil power management chips
Add support for Intersil / Zilker Labs ZL2004, ZL2006, ZL2008, ZL2105, ZL2106,
ZL6100, and ZL6105.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
2011-10-24 11:09:40 -07:00