diff options
| author | Bard Liao <yung-chuan.liao@linux.intel.com> | 2026-07-28 20:46:39 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2026-08-06 14:03:45 +0530 |
| commit | 2a4127a4c5de80d56bfd61831a77cb203fe19b07 (patch) | |
| tree | 265c1eb7634403119abe8c58ad53d87e6e6af445 /include | |
| parent | 5ccdf9ba597881ffac8fede9bac0ea097cb4c119 (diff) | |
soundwire: intel_ace2x: handle the max_data_per_frame property
The optional property indicates the maximum data payload size for the
BRA mode.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20260728124639.1484973-6-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include')
| -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; /** |