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authorRaviChandra Sadineni <ravisadineni@chromium.org>2018-08-20 08:34:19 -0700
committerLee Jones <lee.jones@linaro.org>2018-10-23 08:58:34 +0100
commit61cc15dac01ae84281222452e338ca060179d8b1 (patch)
tree4982859a49f016abc8ba10cc3df2a8b4fe84f8a0 /drivers/mfd
parent4ded11d1cf128db8b5d5b57db3a50dd124358520 (diff)
downloadlinux-61cc15dac01ae84281222452e338ca060179d8b1.tar.bz2
mfd: cros_ec: Check for mkbp events on resume only if supported.
Currently on every resume we check for mkbp events and notify the clients. This helps in identifying the wakeup sources. But on devices that do not support mkbp protocol, we might end up querying key state of the keyboard in a loop which blocks the resume. Instead check for events only if mkbp is supported. Signed-off-by: RaviChandra Sadineni <ravisadineni@chromium.org> Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/cros_ec.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
index 65a9757a6d21..fe6f83766144 100644
--- a/drivers/mfd/cros_ec.c
+++ b/drivers/mfd/cros_ec.c
@@ -218,7 +218,8 @@ EXPORT_SYMBOL(cros_ec_suspend);
static void cros_ec_report_events_during_suspend(struct cros_ec_device *ec_dev)
{
- while (cros_ec_get_next_event(ec_dev, NULL) > 0)
+ while (ec_dev->mkbp_event_supported &&
+ cros_ec_get_next_event(ec_dev, NULL) > 0)
blocking_notifier_call_chain(&ec_dev->event_notifier,
1, ec_dev);
}