On 12/02/2017 07:51 AM, Linus Walleij wrote:
On Fri, Dec 1, 2017 at 11:25 AM, Mika Westerberg
<mika.westerberg@xxxxxxxxxxxxxxx> wrote:
Guenter Roeck reported an interrupt storm on a prototype system which is
based on Cyan Chromebook. The root cause turned out to be a incorrectly
configured pin that triggers spurious interrupts. This will be fixed in
coreboot but currently we need to prevent the interrupt storm from
happening by masking all interrupts (but not GPEs) on those systems.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=194945
Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Reported-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Fixes:?
Cc: stable@xxxxxxxxxxxxxxx?
Fixes: bcb48cca23ec ("pinctrl: cherryview: Do not mask all interrupts in probe")
Mika, any chance to send an update soon ? I would like to apply the patch to
chromeos-4.14, and I would prefer to use the final version.
On a side note, I confirmed that the problem is also seen on release systems
(Acer Chromebook R11) as well as on other systems using the same chipset,
such as Samsung Chromebook 3.
Thanks,
Guenter
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