| /* 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 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 const struct pad_config bt_i2s_disable_pads[] = { |
| PAD_NC(GPP_VGPIO_30, NONE), |
| PAD_NC(GPP_VGPIO_31, NONE), |
| PAD_NC(GPP_VGPIO_32, NONE), |
| PAD_NC(GPP_VGPIO_33, NONE), |
| PAD_NC(GPP_VGPIO_34, NONE), |
| PAD_NC(GPP_VGPIO_35, NONE), |
| PAD_NC(GPP_VGPIO_36, NONE), |
| PAD_NC(GPP_VGPIO_37, NONE), |
| }; |
| |
| static void fw_config_handle(void *unused) |
| { |
| if (!fw_config_is_provisioned() || fw_config_probe(FW_CONFIG(AUDIO, AUDIO_UNKNOWN))) { |
| printk(BIOS_INFO, "Disable BT offload audio related GPIO pins.\n"); |
| gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads)); |
| return; |
| } |
| |
| if (fw_config_probe(FW_CONFIG(AUDIO, NAU88L25B_I2S))) { |
| printk(BIOS_INFO, "BT offload enabled over I2S with NAU88L25B\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); |