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ec/chromeec: Fix check for UHEPI support

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Commit 1dfc2c3
[google/chromeec: Enable unified host event programming interface]
added support for UHEPI, but google_chromeec_is_uhepi_supported()
incorrectly treats negative error return codes from
google_chromeec_check_feature() as supported. Fix this check to only
treat positive return values as supported, as per the original intent.

Test: boot google/lulu, verify cbmem console reports UHEPI not
supported even if feature check returns error code, verify lid/kb
wake events correctly wakes the device from S3/sleep.

Change-Id: I7846efb340bc1546b074e8502daf906c444bd146
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/24982
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Matt DeVillier 2018-03-04 00:05:12 -06:00 committed by Furquan Shaikh
parent 908ea9132b
commit 4132893808
1 changed files with 1 additions and 1 deletions
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2
src/ec/google/chromeec/ec.c
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@ -224,7 +224,7 @@ bool google_chromeec_is_uhepi_supported(void)
if (!uhepi_support) {
uhepi_support = google_chromeec_check_feature
(EC_FEATURE_UNIFIED_WAKE_MASKS) ? UHEPI_SUPPORTED :
(EC_FEATURE_UNIFIED_WAKE_MASKS) > 0 ? UHEPI_SUPPORTED :
UHEPI_NOT_SUPPORTED;
printk(BIOS_DEBUG, "Chrome EC: UHEPI %s\n",
uhepi_support == UHEPI_SUPPORTED ?