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google/lulu,gandof: set kb backlight on boot 

Set keyboard backlight to 75% on boot, except when resuming
from S3.  This enables the backlight at a reasonable level
prior to the OS driver taking over, providing early proof-of-life
and enhanced usability in grub etc.

Uses same method as other google boards with a keyboard backlight
(chell, link, samus).  75% value determined based on user feedback.

TEST: boot google/lulu,gandof boards, observe keyboard backlight
enabled in pre-OS environment.

Change-Id: I7ed59289419af21764b1b5bd0a534d3b630c6c6b
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21330
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Matt DeVillier 2017-09-01 14:15:08 -05:00 committed by Martin Roth
parent 6a878a1f24
commit a21d0a1073
2 changed files with 8 additions and 2 deletions
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5
src/mainboard/google/auron/variants/gandof/variant.c
View File

@ -11,6 +11,8 @@
* GNU General Public License for more details.
*/
#include <ec/google/chromeec/ec.h>
#include <soc/pm.h>
#include <smbios.h>
#include <soc/romstage.h>
#include <variant/onboard.h>
@ -35,5 +37,6 @@ int variant_smbios_data(device_t dev, int *handle,
void variant_romstage_entry(struct romstage_params *rp)
{
/* N/A for boards other than SAMUS */
if (rp->power_state->prev_sleep_state != ACPI_S3)
google_chromeec_kbbacklight(75);
}

5
src/mainboard/google/auron/variants/lulu/variant.c
View File

@ -11,6 +11,8 @@
* GNU General Public License for more details.
*/
#include <ec/google/chromeec/ec.h>
#include <soc/pm.h>
#include <smbios.h>
#include <soc/romstage.h>
#include <variant/onboard.h>
@ -44,5 +46,6 @@ int variant_smbios_data(device_t dev, int *handle,
void variant_romstage_entry(struct romstage_params *rp)
{
/* N/A for boards other than SAMUS */
if (rp->power_state->prev_sleep_state != ACPI_S3)
google_chromeec_kbbacklight(75);
}