kernel/sound/soc/sof/intel/hda-sdw-bpt.c, branch linux-rolling-stableHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-rolling-stable2025-12-08T07:07:26ZASoC: SOF: Intel: export hda_sdw_bpt_get_buf_size_aligment2025-12-08T07:07:26ZBard Liaoyung-chuan.liao@linux.intel.com2025-10-14T03:14:48Zurn:sha1:167efc6dfd621494c6a7e47115dc829dcc0e502c
The dma buffer need to be a multiple of data block size and
the fifo size. Export a function to return the LCM of data
block size and the fifo size.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://patch.msgid.link/20251014031450.3781789-6-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
ASoC: Intel: hda-sdw-bpt: set persistent_buffer false2025-09-15T11:47:08ZBard Liaoyung-chuan.liao@linux.intel.com2025-09-15T02:48:53Zurn:sha1:8b184c34806e5da4d4847fabd3faeff38b47e70a
The persistent_buffer agreement is false when hda_cl_prepare() is
called. We should use the same value when hda_cl_cleanup() is called.
Fixes: 5d5cb86fb46ea ("ASoC: SOF: Intel: hda-sdw-bpt: add helpers for SoundWire BPT DMA")
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/20250915024853.1153518-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
ASoC: SOF: Intel: hda-sdw-bpt: add CHAIN_DMA support2025-03-10T07:01:19ZBard Liaoyung-chuan.liao@linux.intel.com2025-02-27T14:06:13Zurn:sha1:3394e2b125043aeede344d28fc73b3c0d2a5c21f
When the firmware is involved, the data can be transferred with a
CHAIN_DMA on LNL+.
The CHAIN_DMA needs to be programmed before the DMAs per the
documentation. The states are not exactly symmetrical, on stop we must
do a PAUSE and RESET.
The FIFO size of 10ms was determined experimentally. With the minimum
of 2ms, errors were reported by the codec, likely because of xruns.
The code flow deals with the two TX and RX CHAIN_DMAs in symmetrical
ways, i.e.
alloc TX
alloc RX
enable TX
enable RX
disable RX
disable TX
free RX
free TX
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Tested-by: shumingf@realtek.com
Link: https://lore.kernel.org/r/20250227140615.8147-15-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
ASoC: SOF: Intel: hda-sdw-bpt: add helpers for SoundWire BPT DMA2025-03-10T07:01:19ZPierre-Louis Bossartpierre-louis.bossart@linux.dev2025-02-27T14:06:10Zurn:sha1:5d5cb86fb46ea1c7efd3b894f63fe364e5847043
Add SoundWire BPT DMA helpers as a separate module to avoid circular
dependencies.
For now this assumes no link DMA, only coupled mode.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Tested-by: shumingf@realtek.com
Link: https://lore.kernel.org/r/20250227140615.8147-12-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>