erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mb/google/bluey: Skip display initialization when lid is closed

Browse source 
If the system is powered on while the lid is closed (e.g., via a
power button or auto-power-on event), there is no need to initialize
the internal display.

Update display_startup() to check the lid state via get_lid_switch().
Skipping initialization in this state reduces unnecessary power
consumption and slightly improves boot time for closed-lid scenarios.

BUG=none
TEST=Verify display does not initialize when lid is closed on
Google/Quartz.

Change-Id: I2ec48876f102b7309a1401aa9d7bdc0fdc96791a
Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91011
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kapil Porwal 2026-01-30 19:37:25 +05:30 • committed by Subrata Banik
commit eecd2b49ca
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/mainboard/google/bluey/mainboard.c
View file

@ -140,7 +140,7 @@ bool mainboard_needs_pcie_init(void)
static void display_startup(void)
{
if (!display_init_required()) {
if (!display_init_required() || (CONFIG(VBOOT_LID_SWITCH) && !get_lid_switch())) {
printk(BIOS_INFO, "Skipping display init.\n");
return;
}