greybus: arche-platform: ensure wake-detect pin is deasserted
authorMichael Scott <michael.scott@linaro.org>
Thu, 28 Jan 2016 00:40:58 +0000 (16:40 -0800)
committerGreg Kroah-Hartman <gregkh@google.com>
Fri, 29 Jan 2016 16:50:13 +0000 (08:50 -0800)
commit057aad29f9dec26d49671c6744d070edb8594174
tree4822956fcbd3805bada3680d98d92bd5665c7f5e
parent24988d3a253303be63c460071dd99bd4674c0880
greybus: arche-platform: ensure wake-detect pin is deasserted

During DB3.5 bringup, it was noted that wake_detect signal was not
properly generating SVC edge IRQ.  To ensure signal goes from low
to high correctly, let's bring signal low (regardless of default
pin state).

Testing Done:
- Used for DB3.5/EVT1.5 hardware during bringup
- Regression tested on DB3.1+ES2, DB3.1+ES3

Signed-off-by: Michael Scott <michael.scott@linaro.org>
Reviewed-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Tested-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
drivers/staging/greybus/arche-platform.c