linux-stable.git/drivers/regulator, branch v5.2.4

regulator: s2mps11: Fix buck7 and buck8 wrong voltages

2019-07-26T07:10:53+00:00

commit 16da0eb5ab6ef2dd1d33431199126e63db9997cc upstream.

On S2MPS11 device, the buck7 and buck8 regulator voltages start at 750
mV, not 600 mV.  Using wrong minimal value caused shifting of these
regulator values by 150 mV (e.g. buck7 usually configured to v1.35 V was
reported as 1.2 V).

On most of the boards these regulators are left in default state so this
was only affecting reported voltage.  However if any driver wanted to
change them, then effectively it would set voltage 150 mV higher than
intended.

Cc: 
Fixes: cb74685ecb39 ("regulator: s2mps11: Add samsung s2mps11 regulator driver")
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

regulator: s2mps11: Fix ERR_PTR dereference on GPIO lookup failure

2019-07-26T07:10:53+00:00

commit 70ca117b02f3b1c8830fe95e4e3dea2937038e11 upstream.

If devm_gpiod_get_from_of_node() call returns ERR_PTR, it is assigned
into an array of GPIO descriptors and used later because such error is
not treated as critical thus it is not propagated back to the probe
function.

All code later expects that such GPIO descriptor is either a NULL or
proper value.  This later might lead to dereference of ERR_PTR.

Only devices with S2MPS14 flavor are affected (other do not control
regulators with GPIOs).

Fixes: 1c984942f0a4 ("regulator: s2mps11: Pass descriptor instead of GPIO number")
Cc: 
Signed-off-by: Krzysztof Kozlowski 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

gpio: Fix return value mismatch of function gpiod_get_from_of_node()

2019-07-26T07:10:37+00:00

[ Upstream commit 025bf37725f1929542361eef2245df30badf242e ]

In case the requested gpio property is not found in the device tree, some
callers of gpiod_get_from_of_node() expect a return value of NULL, others
expect -ENOENT.
In particular devm_fwnode_get_index_gpiod_from_child() expects -ENOENT.
Currently it gets a NULL, which breaks the loop that tries all
gpio_suffixes. The result is that a gpio property is not found, even
though it is there.

This patch changes gpiod_get_from_of_node() to return -ENOENT instead
of NULL when the requested gpio property is not found in the device
tree. Additionally it modifies all calling functions to properly
evaluate the return value.

Another approach would be to leave the return value of
gpiod_get_from_of_node() as is and fix the bug in
devm_fwnode_get_index_gpiod_from_child(). Other callers would still need
to be reworked. The effort would be the same as with the chosen solution.

Signed-off-by: Georg Waibel 
Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Linus Walleij 
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
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Signed-off-by: Thomas Gleixner 
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Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman

Merge tag 'regulator-fix-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

2019-06-10T17:35:55+00:00

Pull regulator fix from Mark Brown:
 "Just one driver specific fix here, for a boot regression introduced
  during some modernization work on the tps6507x driver"

* tag 'regulator-fix-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: tps6507x: Fix boot regression due to testing wrong init_data pointer

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450

2019-06-05T15:37:18+00:00

Based on 1 normalized pattern(s):

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extracted by the scancode license scanner the SPDX license identifier

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Reviewed-by: Armijn Hemel 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190116.345887520@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446

2019-06-05T15:37:18+00:00

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extracted by the scancode license scanner the SPDX license identifier

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Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.962665879@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422

2019-06-05T15:37:15+00:00

Based on 1 normalized pattern(s):

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extracted by the scancode license scanner the SPDX license identifier

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Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
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Signed-off-by: Greg Kroah-Hartman

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2019-06-05T15:37:10+00:00

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Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336

2019-06-05T15:37:07+00:00

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Signed-off-by: Thomas Gleixner 
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Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de
Signed-off-by: Greg Kroah-Hartman