Paul Fagerburg submitted this change.
mb/google/zork: Initialize the backlight in the OS
This fix needs to go into ACPI in the long-term, but this
should suffice in the short-term.
BUG=b:158087989
TEST=Boot berknip, verify backlight is enabled. Test suspend
& resume sequence, backlight is still enabled.
BRANCH=Zork
Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I6ecc3c9e397c9756a78e480d3f639c507879a0ea
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45854
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
M src/mainboard/google/zork/smihandler.c
1 file changed, 6 insertions(+), 0 deletions(-)
diff --git a/src/mainboard/google/zork/smihandler.c b/src/mainboard/google/zork/smihandler.c
index 12a3b64..6ef2704 100644
--- a/src/mainboard/google/zork/smihandler.c
+++ b/src/mainboard/google/zork/smihandler.c
@@ -33,5 +33,11 @@
if (CONFIG(EC_GOOGLE_CHROMEEC))
chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS,
MAINBOARD_EC_SMI_EVENTS);
+
+ /* Temporary fix - Needs to go into ACPI instead */
+ /* Turn on the backlight when we go to ACPI mode */
+ if (apmc == APM_CNT_ACPI_ENABLE)
+ gpio_set(GPIO_85, 0);
+
return 0;
}
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