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mb/google/bluey: Disable lightbar during low-power charging boot

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Turn off the lightbar when the system boots into Low-Battery with
Charger or Off-Mode Charging states.

This ensures that the external lightbar does not provide conflicting
visual signals while the built-in display is showing the charging
animation. Additionally, this prevents unnecessary power consumption
from the lightbar in these power-restricted modes.

BUG=b:477531197
TEST=Boot bluey in off-mode charging; verify lightbar is disabled.
     Boot bluey normally; verify lightbar functions as expected.

Change-Id: Ice64d700aee82c780f872a3cb18f8a873e9189f5
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91378
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
This commit is contained in:
Subrata Banik 2026-02-23 09:01:32 +05:30
commit d39f406f55
1 changed files with 9 additions and 2 deletions
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11
src/mainboard/google/bluey/mainboard.c
View file

@ -184,9 +184,16 @@ static void mainboard_init(struct device *dev)
if (get_boot_mode() == LB_BOOT_MODE_LOW_BATTERY)
trigger_critical_battery_shutdown();
/* Skip mainboard initialization if boot mode is "low-battery" or "off-mode charging"*/
if (is_low_power_boot_with_charger())
/* Skip mainboard initialization if boot mode is "low-battery" or "off-mode charging" */
if (is_low_power_boot_with_charger()) {
/* Disable the lightbar for Low-Battery or Off-Mode charging sequences.
* This maintains visual consistency between the built-in display
* indicators and the external lightbar.
*/
if (CONFIG(EC_GOOGLE_CHROMEEC))
google_chromeec_lightbar_off();
return;
}
gpi_firmware_load(QUP_0_GSI_BASE);
gpi_firmware_load(QUP_1_GSI_BASE);