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authorMarc Jones <marcj303@gmail.com>2018-07-14 17:32:04 -0600
committerMarc Jones <marc@marcjonesconsulting.com>2018-07-17 01:57:34 +0000
commitee03dc2644ffd284847384080616a6a319e31a56 (patch)
tree0f45c942662cf562fb6abd110642e4a5716dd627 /src/mainboard
parentf3dc65951619d50da423daac0523420301af16e9 (diff)
downloadcoreboot-ee03dc2644ffd284847384080616a6a319e31a56.tar.xz
mainboard/google/kahlee: Enable backlight in SMI APMC
Enable the backlight in the OS callback to SMI for APMC. This keeps the backlight off until the OS is ready to display something. BUG=b:72694972 TEST=Backlight turns on at ChromeOS splash screen Change-Id: Idf32b1a3d45971883571a829a5c0c1f8563bb1f7 Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/27487 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/kahlee/smihandler.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mainboard/google/kahlee/smihandler.c b/src/mainboard/google/kahlee/smihandler.c
index 62ba2b076d..83757a850d 100644
--- a/src/mainboard/google/kahlee/smihandler.c
+++ b/src/mainboard/google/kahlee/smihandler.c
@@ -17,8 +17,10 @@
#include <arch/acpi.h>
#include <cpu/x86/smm.h>
#include <ec/google/chromeec/smm.h>
+#include <gpio.h>
#include <soc/smi.h>
#include <variant/ec.h>
+#include <variant/gpio.h>
void mainboard_smi_gpi(u32 gpi_sts)
{
@@ -39,5 +41,9 @@ int mainboard_smi_apmc(u8 apmc)
if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC))
chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS,
MAINBOARD_EC_SMI_EVENTS);
+
+ /* Enable backlight - GPIO active low */
+ gpio_set(GPIO_133, 0);
+
return 0;
}