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mb/google/brya/var/marasov: Turn off camera power during S0ix

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Turn off camera power during S0ix to improve power consumption.

BUG=b:265754302
BRANCH=firmware-brya-14505.B
TEST=emerge-brya coreboot chromeos-bootimage

Signed-off-by: Frank Chu <Frank_Chu@pegatron.corp-partner.google.com>
Change-Id: Ie2b300783adfc1cab30bc897d086a3674436724a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72089
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frank Chu <frank_chu@pegatron.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
This commit is contained in:
Frank Chu 2023-01-19 16:15:13 +08:00 committed by Martin L Roth
parent 0dbc9174ca
commit f4ac5ea179
3 changed files with 18 additions and 0 deletions
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2
src/mainboard/google/brya/variants/marasov/Makefile.inc
View file

@ -7,3 +7,5 @@ ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
romstage-y += memory.c
ramstage-y += gpio.c
ramstage-y += variant.c

2
src/mainboard/google/brya/variants/marasov/include/variant/gpio.h
View file

@ -5,4 +5,6 @@
#include <baseboard/gpio.h>
#define CAM_PWR GPP_A17
#endif

14
src/mainboard/google/brya/variants/marasov/variant.c Normal file
View file

@ -0,0 +1,14 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <acpi/acpigen.h>
#include <baseboard/variants.h>
#include <variant/gpio.h>
void variant_generate_s0ix_hook(enum s0ix_entry entry)
{
/* Add board-specific MS0X entries */
if (entry == S0IX_ENTRY)
acpigen_soc_clear_tx_gpio(CAM_PWR);
if (entry == S0IX_EXIT)
acpigen_soc_set_tx_gpio(CAM_PWR);
}