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| author | Dan O'Donovan <dan@emutex.com> | 2016-06-10 13:23:34 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-20 18:10:50 +0200 |
| commit | edf2ba9be7cb46f070d4c9bcd71e8ea88c730344 (patch) | |
| tree | 9966ca2717145e0c0505738d433ffa2370b1225a /drivers/extcon | |
| parent | 992cd8a125464e6150bc33b80b1cd5ef662e2470 (diff) | |
| download | linux-stable-edf2ba9be7cb46f070d4c9bcd71e8ea88c730344.tar.gz linux-stable-edf2ba9be7cb46f070d4c9bcd71e8ea88c730344.tar.bz2 linux-stable-edf2ba9be7cb46f070d4c9bcd71e8ea88c730344.zip | |
pinctrl: cherryview: prevent concurrent access to GPIO controllers
commit 0bd50d719b004110e791800450ad204399100a86 upstream.
Due to a silicon issue on the Atom X5-Z8000 "Cherry Trail" processor
series, a common lock must be used to prevent concurrent accesses
across the 4 GPIO controllers managed by this driver.
See Intel Atom Z8000 Processor Series Specification Update
(Rev. 005), errata #CHT34, for further information.
Signed-off-by: Dan O'Donovan <dan@emutex.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/extcon')
0 files changed, 0 insertions, 0 deletions