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mb/google/brya/variants/volmar: Disable the unused FP pads 

Disable the unused fingerprinter(FP) gpio for zavala by fw_config
FPMCU_MASK field.

BUG=b:250807253
TEST=build firmware and veriify the FP function on volmar DUT

Signed-off-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Change-Id: I0af1b7c3e4829ecab98525ead4f078c3eb6485d0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69465
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Ren Kuo 2022-11-11 13:25:45 +08:00 committed by Martin L Roth
parent 93001ef9b7
commit ea7c727a94
1 changed files with 11 additions and 0 deletions
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11
src/mainboard/google/brya/variants/volmar/fw_config.c
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@ -63,6 +63,12 @@ static const struct pad_config bt_i2s_disable_pads[] = {
PAD_NC(GPP_VGPIO_37, NONE),
};
static const struct pad_config fp_disable_pads[] = {
PAD_NC(GPP_D0, NONE), /* D0 : ISH_GP0 ==> PCH_FP_BOOT0 */
PAD_NC(GPP_D1, NONE), /* D1 : ISH_GP1 ==> FP_RST_ODL */
PAD_NC(GPP_D2, NONE), /* D2 : ISH_GP2 ==> EN_FP_PWR */
};
static void fw_config_handle(void *unused)
{
if (!fw_config_is_provisioned() || fw_config_probe(FW_CONFIG(AUDIO, AUDIO_UNKNOWN))) {
@ -83,5 +89,10 @@ static void fw_config_handle(void *unused)
printk(BIOS_INFO, "Disabling BT offload\n");
gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads));
}
if (fw_config_probe(FW_CONFIG(FPMCU_MASK, FPMCU_DISABLED))) {
printk(BIOS_INFO, "Disabling FP pads\n");
gpio_configure_pads(fp_disable_pads, ARRAY_SIZE(fp_disable_pads));
}
}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);