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mb/google/skywalker: Implement lb_board() to pass LB_TAG_PANEL_POWEROFF

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To allow payloads to run MIPI panel power-off commands, create a new
LB_TAG_PANEL_POWEROFF record and pass it to payloads.

BUG=b:474187570
TEST=emerge-jedi coreboot
BRANCH=skywalker

Change-Id: Ie11e1e78129188cc26d56764449fbafafa8fa316
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90768
Reviewed-by: Chen-Tsung Hsieh <chentsung@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Yu-Ping Wu 2026-01-15 16:59:06 +08:00 • committed by Yu-Ping Wu
commit 5af56ddf92
1 changed files with 24 additions and 0 deletions
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24
src/mainboard/google/skywalker/mainboard.c
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@ -1,6 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
#include <boot/coreboot_tables.h>
#include <bootmode.h>
#include <commonlib/coreboot_tables.h>
#include <commonlib/helpers.h>
#include <commonlib/mipi/cmd.h>
#include <device/device.h>
#include <device/mmio.h>
#include <fw_config.h>
@ -166,3 +170,23 @@ struct chip_operations mainboard_ops = {
.name = CONFIG_MAINBOARD_PART_NUMBER,
.enable_dev = mainboard_enable,
};
void lb_board(struct lb_header *header)
{
const struct panel_serializable_data *mipi_data = mtk_get_mipi_panel_data();
if (!mipi_data)
return;
size_t cmd_len = mipi_panel_get_commands_len(mipi_data->poweroff);
if (!cmd_len)
return;
struct lb_panel_poweroff *panel_poweroff =
(struct lb_panel_poweroff *)lb_new_record(header);
panel_poweroff->tag = LB_TAG_PANEL_POWEROFF;
panel_poweroff->size = ALIGN_UP(sizeof(*panel_poweroff) + cmd_len,
LB_ENTRY_ALIGN);
memcpy(panel_poweroff->cmd, mipi_data->poweroff, cmd_len);
}