soundwire: cadence_master: add BRA_NumBytes[8] support

Browse source

The header[0] bit definitions are:
Header[0] bits 7 – 6: BRA_HeaderType
Header[0] bits 5 – 2: BRA_DeviceAddress[3:0]
Header[0] bit 1 BRA_Opcode 1 => Write, 0 => Read
Header[0] bit 0 BRA_NumBytes[8]
And the header[1] indicates the BRA_NumBytes[7:0]. The existing code
doesn't handle BRA_NumBytes[8] therefore the maximum BRA number of a
frame is limited to 255.

Fixes: fe8a9cf75c ("soundwire: pass sdw_bpt_section to cdns BPT helpers")
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/20260728124639.1484973-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

...

This commit is contained in:

Bard Liao 2026-07-28 20:46:35 +08:00 • committed by Vinod Koul

parent 6409292ab5

commit f74b589025

1 changed files with 18 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

24

drivers/soundwire/cadence_master.c

View file