diff options
| author | Michael Scott <michael.scott@linaro.org> | 2016-01-27 16:40:58 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2016-01-29 08:50:13 -0800 |
| commit | 057aad29f9dec26d49671c6744d070edb8594174 (patch) | |
| tree | 4822956fcbd3805bada3680d98d92bd5665c7f5e /drivers | |
| parent | 24988d3a253303be63c460071dd99bd4674c0880 (diff) | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/greybus/arche-platform.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c index b5596ec4409c..4e49be837b0e 100644 --- a/drivers/staging/greybus/arche-platform.c +++ b/drivers/staging/greybus/arche-platform.c @@ -211,6 +211,8 @@ static int arche_platform_probe(struct platform_device *pdev) arche_pdata->wake_detect_gpio); goto exit; } + /* deassert wake detect */ + gpio_direction_output(arche_pdata->wake_detect_gpio, 0); arche_pdata->dev = &pdev->dev; INIT_DELAYED_WORK(&arche_pdata->delayed_work, svc_delayed_work); |