diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/soundwire/sdw.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 89009a2c321d..769a8ba5b5c6 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -843,6 +843,14 @@ struct sdw_defer { */ #define SDW_BPT_MSG_MAX_BYTES (1024 * 1024) +/* + * According to mipi SoundWire DisCo Specification_v2-1, + * this maximum value shall not exceed 470. + * Note that the largest number of bytes accessible by a single BRA operation is limited to 470 + * bytes when using lane 0, but goes up to 502 bytes when using one of the optional extra lanes. + */ +#define SDW_BRA_MAX_BYTES_PER_FRAME 470 + struct sdw_bpt_msg; /** |