| /* 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_S2, NONE, DEEP, NF2), /* DMIC_CLK0_R */ |
| PAD_CFG_NF(GPP_S3, NONE, DEEP, NF2), /* DMIC_DATA0_R */ |
| |
| }; |
| |
| static const struct pad_config dmic_disable_pads[] = { |
| PAD_NC(GPP_S2, NONE), |
| PAD_NC(GPP_S3, 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_R4, NONE, DEEP, NF2), /* I2S_SPKR_SCLK_R */ |
| PAD_CFG_NF(GPP_R5, NONE, DEEP, NF2), /* I2S_SPKR_SFRM_R */ |
| PAD_CFG_NF(GPP_R6, NONE, DEEP, NF2), /* I2S_PCH_TX_SPKR_RX_R */ |
| PAD_NC(GPP_R7, NONE), /* 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_R4, NONE), |
| PAD_NC(GPP_R5, NONE), |
| PAD_NC(GPP_R6, NONE), |
| PAD_NC(GPP_R7, 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 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, AUDIO_MAX98357_ALC5682I_I2S))) { |
| printk(BIOS_INFO, "Configure audio over I2S with MAX98357 ALC5682I.\n"); |
| gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads)); |
| gpio_configure_pads(i2s_enable_pads, ARRAY_SIZE(i2s_enable_pads)); |
| } |
| } |
| BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL); |