src/mainboard/google/brya/variants/brask/fw_config.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootstate.h>
   4 #include <console/console.h>
   5 #include <fw_config.h>
   6 #include <gpio.h>
   7
   8 static const struct pad_config bt_i2s_enable_pads[] = {
   9         PAD_CFG_NF(GPP_VGPIO_30, NONE, DEEP, NF3),      /* BT_I2S_BCLK */
  10         PAD_CFG_NF(GPP_VGPIO_31, NONE, DEEP, NF3),      /* BT_I2S_SYNC */
  11         PAD_CFG_NF(GPP_VGPIO_32, NONE, DEEP, NF3),      /* BT_I2S_SDO */
  12         PAD_CFG_NF(GPP_VGPIO_33, NONE, DEEP, NF3),      /* BT_I2S_SDI */
  13         PAD_CFG_NF(GPP_VGPIO_34, NONE, DEEP, NF1),      /* SSP2_SCLK */
  14         PAD_CFG_NF(GPP_VGPIO_35, NONE, DEEP, NF1),      /* SSP2_SFRM */
  15         PAD_CFG_NF(GPP_VGPIO_36, NONE, DEEP, NF1),      /* SSP_TXD */
  16         PAD_CFG_NF(GPP_VGPIO_37, NONE, DEEP, NF1),      /* SSP_RXD */
  17 };
  18
  19 static const struct pad_config bt_i2s_disable_pads[] = {
  20         PAD_NC(GPP_VGPIO_30, NONE),
  21         PAD_NC(GPP_VGPIO_31, NONE),
  22         PAD_NC(GPP_VGPIO_32, NONE),
  23         PAD_NC(GPP_VGPIO_33, NONE),
  24         PAD_NC(GPP_VGPIO_34, NONE),
  25         PAD_NC(GPP_VGPIO_35, NONE),
  26         PAD_NC(GPP_VGPIO_36, NONE),
  27         PAD_NC(GPP_VGPIO_37, NONE),
  28 };
  29
  30 static void fw_config_handle(void *unused)
  31 {
  32         if (!fw_config_is_provisioned() || fw_config_probe(FW_CONFIG(AUDIO, AUDIO_UNKNOWN))) {
  33                 printk(BIOS_INFO, "Disable BT offload audio related GPIO pins.\n");
  34                 gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads));
  35                 return;
  36         }
  37
  38         if (fw_config_probe(FW_CONFIG(AUDIO, NAU88L25B_I2S))) {
  39                 printk(BIOS_INFO, "BT offload enabled over I2S with NAU88L25B\n");
  40                 gpio_configure_pads(bt_i2s_enable_pads, ARRAY_SIZE(bt_i2s_enable_pads));
  41         }
  42
  43 }
  44 BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);