1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootstate.h>
#include <console/console.h>
#include <fw_config.h>
#include <gpio.h>
static const struct pad_config dmic_enable_pads[] = {
PAD_CFG_NF(GPP_R4, NONE, DEEP, NF3), /* DMIC_CLK0_R */
PAD_CFG_NF(GPP_R5, NONE, DEEP, NF3), /* DMIC_DATA0_R */
};
static const struct pad_config dmic_disable_pads[] = {
PAD_NC(GPP_R4, NONE),
PAD_NC(GPP_R5, NONE),
};
static const struct pad_config i2s_enable_pads[] = {
PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2), /* I2S_HP_SCLK_R */
PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2), /* I2S_HP_SFRM_R */
PAD_CFG_NF(GPP_R2, DN_20K, DEEP, NF2), /* I2S_PCH_TX_HP_RX_STRAP */
PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2), /* I2S_PCH_RX_HP_TX */
PAD_CFG_NF(GPP_S0, NONE, DEEP, NF4), /* I2S_SPKR_SCLK_R */
PAD_CFG_NF(GPP_S1, NONE, DEEP, NF4), /* I2S_SPKR_SFRM_R */
PAD_CFG_NF(GPP_S2, NONE, DEEP, NF4), /* I2S_PCH_TX_SPKR_RX_R */
PAD_CFG_NF(GPP_S3, NONE, DEEP, NF4), /* I2S_PCH_RX_SPKR_TX */
};
static const struct pad_config i2s_disable_pads[] = {
PAD_NC(GPP_R0, NONE),
PAD_NC(GPP_R1, NONE),
PAD_NC(GPP_R2, NONE),
PAD_NC(GPP_R3, NONE),
PAD_NC(GPP_S0, NONE),
PAD_NC(GPP_S1, NONE),
PAD_NC(GPP_S2, NONE),
PAD_NC(GPP_S3, NONE),
};
static const struct pad_config bt_i2s_enable_pads[] = {
PAD_CFG_NF(GPP_VGPIO_30, NONE, DEEP, NF3), /* BT_I2S_BCLK */
PAD_CFG_NF(GPP_VGPIO_31, NONE, DEEP, NF3), /* BT_I2S_SYNC */
PAD_CFG_NF(GPP_VGPIO_32, NONE, DEEP, NF3), /* BT_I2S_SDO */
PAD_CFG_NF(GPP_VGPIO_33, NONE, DEEP, NF3), /* BT_I2S_SDI */
PAD_CFG_NF(GPP_VGPIO_34, NONE, DEEP, NF1), /* SSP2_SCLK */
PAD_CFG_NF(GPP_VGPIO_35, NONE, DEEP, NF1), /* SSP2_SFRM */
PAD_CFG_NF(GPP_VGPIO_36, NONE, DEEP, NF1), /* SSP_TXD */
PAD_CFG_NF(GPP_VGPIO_37, NONE, DEEP, NF1), /* SSP_RXD */
};
static void fw_config_handle(void *unused)
{
if (!fw_config_is_provisioned() || fw_config_probe(FW_CONFIG(AUDIO, AUDIO_UNKNOWN))) {
printk(BIOS_INFO, "Disable audio related GPIO pins.\n");
gpio_configure_pads(i2s_disable_pads, ARRAY_SIZE(i2s_disable_pads));
gpio_configure_pads(dmic_disable_pads, ARRAY_SIZE(dmic_disable_pads));
return;
}
if (fw_config_probe(FW_CONFIG(AUDIO, MAX98390_ALC5682I_I2S_4SPK))) {
printk(BIOS_INFO, "Configure audio over I2S with MAX98390 ALC5682I.\n");
gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads));
gpio_configure_pads(i2s_enable_pads, ARRAY_SIZE(i2s_enable_pads));
printk(BIOS_INFO, "BT offload enabled\n");
gpio_configure_pads(bt_i2s_enable_pads, ARRAY_SIZE(bt_i2s_enable_pads));
}
}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);
|
