linux-stable.git/drivers/hwmon, branch v3.18.26

hwmon: (nct6775) Swap STEP_UP_TIME and STEP_DOWN_TIME registers for most chips

2015-10-28T02:13:00+00:00

[ Upstream commit 728d29400488d54974d3317fe8a232b45fdb42ee ]

The STEP_UP_TIME and STEP_DOWN_TIME registers are swapped for all chips but
NCT6775.

Reported-by: Grazvydas Ignotas 
Reviewed-by: Jean Delvare 
Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: Guenter Roeck 
Signed-off-by: Sasha Levin

hwmon: (mcp3021) Fix broken output scaling

2015-07-05T14:12:56+00:00

[ Upstream commit 347d7e45bd09ce09cbc30d5cea9de377eb22f55c ]

The mcp3021 scaling code is dividing the VDD (full-scale) value in
millivolts by the A2D resolution to obtain the scaling factor. When VDD
is 3300mV (the standard value) and the resolution is 12-bit (4096
divisions), the result is a scale factor of 3300/4096, which is always
one.  Effectively, the raw A2D reading is always being returned because
no scaling is applied.

This patch fixes the issue and simplifies the register-to-volts
calculation, removing the unneeded "output_scale" struct member.

Signed-off-by: Nick Stevens 
Cc: stable@vger.kernel.org # v3.10+
[Guenter Roeck: Dropped unnecessary value check]
Signed-off-by: Guenter Roeck 

Signed-off-by: Sasha Levin

hwmon: (nct6683) Add missing sysfs attribute initialization

2015-06-09T18:31:42+00:00

[ Upstream commit c7bd6dc320b85445b6b36a0aff41f929210027c7 ]

The following error message is seen when loading the nct6683 driver
with DEBUG_LOCK_ALLOC enabled.

BUG: key ffff88040b2f0030 not in .data!
------------[ cut here ]------------
WARNING: CPU: 0 PID: 186 at kernel/locking/lockdep.c:2988
				lockdep_init_map+0x469/0x630()
DEBUG_LOCKS_WARN_ON(1)

Caused by a missing call to sysfs_attr_init() when initializing
sysfs attributes.

Reported-by: Alexey Orishko 
Reviewed-by: Jean Delvare 
Cc: stable@vger.kernel.org # v3.18+
Signed-off-by: Guenter Roeck 
Signed-off-by: Sasha Levin

hwmon: (nct6775) Add missing sysfs attribute initialization

2015-06-09T18:31:42+00:00

[ Upstream commit 1b63bf617206ff35b93c57c67bbe067ac735a85a ]

The following error message is seen when loading the nct6775 driver
with DEBUG_LOCK_ALLOC enabled.

BUG: key ffff88040b2f0030 not in .data!
------------[ cut here ]------------
WARNING: CPU: 0 PID: 186 at kernel/locking/lockdep.c:2988
				lockdep_init_map+0x469/0x630()
DEBUG_LOCKS_WARN_ON(1)

Caused by a missing call to sysfs_attr_init() when initializing
sysfs attributes.

Reported-by: Alexey Orishko 
Reviewed-by: Jean Delvare 
Cc: stable@vger.kernel.org # v3.12+
Signed-off-by: Guenter Roeck 
Signed-off-by: Sasha Levin

hwmon: (ntc_thermistor) Ensure iio channel is of type IIO_VOLTAGE

2015-06-09T17:43:55+00:00

[ Upstream commit adba657533bdd255f7b78bc8a324091f46b294cd ]

When configured via device tree, the associated iio device needs to be
measuring voltage for the conversion to resistance to be correct.
Return -EINVAL if that is not the case.

Signed-off-by: Chris Lesiak 
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Guenter Roeck 
Signed-off-by: Sasha Levin

hwmon: (g762) fix call to devm_hwmon_device_register_with_groups()

2014-11-19T22:06:47+00:00

g762_remove() needs to first call hwmon_device_unregister() and then
g762_of_clock_disable(). For that reason, it is not possible to
convert it to devm_hwmon_device_register_with_groups() and the
the non device managed version must be used.

This is correctly stated in commit message for 398e16db6262 ("hwmon:
(g762) Convert to hwmon_device_register_with_groups") but the
associated changes do in fact introduce a call to the device managed
version of the function.

This patch fixes that typo by switching to the non devm_ version.

Fixes: 398e16db6262 ("hwmon: (g762) Convert to hwmon_device_register_with_groups")
Cc: stable@vger.kernel.org (3.17+)
Signed-off-by: Arnaud Ebalard 
Signed-off-by: Guenter Roeck

hwmon: (fam15h_power) Fix NB device ID for F16h M30h

2014-11-11T18:39:45+00:00

F3 device ID is wrongly included in fam15h_power_id_table
for F16h M30h. It should be F4 device ID. Fix this.

Signed-off-by: Aravind Gopalakrishnan 
Signed-off-by: Guenter Roeck

hwmon: (pwm-fan) Fix suspend/resume behavior

2014-11-11T18:39:45+00:00

The state of a PWM output is not clearly defined after resume. Some PWM
drivers do not restore the duty cycle upon resume, thus it is necessary to
manually restore the correct value.

Signed-off-by: Kamil Debski 
Signed-off-by: Guenter Roeck

hwmon: (ibmpowernv) Quieten when probing finds no device

2014-11-11T18:39:45+00:00

Because we build kernels with drivers built in for many platforms, it's
normal for the ibmpowernv driver to be loaded on systems that don't have
the appropriate hardware.

Currently the driver spams the log with:

  ibmpowernv ibmpowernv.0: Opal node 'sensors' not found
  ibmpowernv: Platfrom driver probe failed

But there is no error, this machine is not a powernv and doesn't have
the hardware. So change the sensors message to dev_dbg(), and only print
an error about the probe failing if it's not ENODEV.

Also fix the spelling of "Platfrom" and print the actual error value.

Signed-off-by: Michael Ellerman 
Reviewed-by: Jean Delvare 
Signed-off-by: Guenter Roeck

hwmon: (menf21bmc) Include linux/err.h

2014-10-20T01:41:18+00:00

Include linux/err.h to get the definitions for IS_ERR() PTR_ERR() and
ERR_PTR() used in the driver.

This fixes compilation on powerpc targets.

Signed-off-by: Johannes Thumshirn 
Signed-off-by: Guenter Roeck