The platform driver may have information on which I2S/TDM link(s) to enable in the machine driver. In the case of Intel devices, this may be extracted from NHLT tables in platform firmware. This link information is necessary to make sure machine driver and topology are aligned.
Unified · Split
| @@ -64,6 +64,7 @@ static inline struct snd_soc_acpi_mach *snd_soc_acpi_codec_list(void *arg) · 63 unmodified lines | ||
| 64 | 64 | * @common_hdmi_codec_drv: use commom HDAudio HDMI codec driver |
| 65 | 65 | * @link_mask: SoundWire links enabled on the board |
| 66 | 66 | * @links: array of SoundWire link _ADR descriptors, null terminated |
| 67 | + * @i2s_link_mask: I2S/TDM links enabled on the board | |
| 67 | 68 | * @num_dai_drivers: number of elements in @dai_drivers |
| 68 | 69 | * @dai_drivers: pointer to dai_drivers, used e.g. in nocodec mode |
| 69 | 70 | */ |
| @@ -75,6 +76,7 @@ struct snd_soc_acpi_mach_params { · 5 unmodified lines | ||
| 75 | 76 | bool common_hdmi_codec_drv; |
| 76 | 77 | u32 link_mask; |
| 77 | 78 | const struct snd_soc_acpi_link_adr *links; |
| 79 | + u32 i2s_link_mask; | |
| 78 | 80 | u32 num_dai_drivers; |
| 79 | 81 | struct snd_soc_dai_driver *dai_drivers; |
| 80 | 82 | }; |