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Documented in 1 files:

Defined in 1 files as a member:

Defined in 2 files as a function:

Referenced in 4 files:

Smatch caller information:

sound/core/pcm_native.c snd_pcm_do_drain_init() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->hw.info 1073741824-u32max
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 1 cmd 6
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
DATA_SOURCE 0 substream $0
CONTAINER 0 -48-184+0 $(-1)
RX_PATH
TASK_NOT_RUNNING
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

sound/core/pcm_native.c snd_pcm_do_pause() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 1 cmd 2-3
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
CAPPED_DATA 0 substream->runtime->trigger_master 1
DATA_SOURCE 0 substream $0
FUZZY_MAX 1 cmd 3
CONTAINER 0 -48-184+0 $(-1)
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
BIT_INFO 1 cmd 0x2,0x3
HARD_MAX 1 cmd 3
RX_PATH
TASK_NOT_RUNNING
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

sound/core/pcm_native.c snd_pcm_do_resume() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->suspended_state 3,5
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 1 cmd 5
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
DATA_SOURCE 0 substream $0
CONTAINER 0 -48-184+0 $(-1)
RX_PATH
TASK_NOT_RUNNING
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

sound/core/pcm_native.c snd_pcm_do_start() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 1 cmd 1
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
CAPPED_DATA 0 substream->runtime->trigger_master 1
DATA_SOURCE 0 substream $0
CONTAINER 0 -48-184+0 $(-1)
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
RX_PATH
TASK_NOT_RUNNING
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

sound/core/pcm_native.c snd_pcm_do_stop() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->state 3,5
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 0 substream->stream 0
PARAM_VALUE 1 cmd 0
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
CAPPED_DATA 0 substream->runtime->trigger_master 1
DATA_SOURCE 0 substream $0
CONTAINER 0 -48-184+0 $(-1)
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

sound/core/pcm_native.c snd_pcm_do_suspend() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->state 3,5
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 0 substream->stream 0
PARAM_VALUE 1 cmd 4
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
DATA_SOURCE 0 substream $0
CONTAINER 0 -48-184+0 $(-1)
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

sound/core/pcm_native.c snd_pcm_undo_pause() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 1 cmd 2-3
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
CAPPED_DATA 0 substream->runtime->trigger_master 1
DATA_SOURCE 0 substream $0
FUZZY_MAX 1 cmd 3
CONTAINER 0 -48-184+0 $(-1)
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
BIT_INFO 1 cmd 0x2,0x3
HARD_MAX 1 cmd 3
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

sound/core/pcm_native.c snd_pcm_undo_resume() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->state 3,5
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 0 substream->stream 0
PARAM_VALUE 1 cmd 4
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
CAPPED_DATA 0 substream->runtime->trigger_master 1
DATA_SOURCE 0 substream $0
CONTAINER 0 -48-184+0 $(-1)
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

sound/core/pcm_native.c snd_pcm_undo_start() -> (struct snd_pcm_ops)->trigger()

Type Parameter Key Value
PARAM_VALUE 0 substream 4096-ptr_max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->available_count 0-s64max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->cma_area->nranges s32min-s32max
PARAM_VALUE 0 substream->dma_buffer.dev.dev->dma_io_tlb_mem->for_alloc 0-1
PARAM_VALUE 0 substream->ops 4096-ptr_max
PARAM_VALUE 0 substream->pstr->stream 0-1
PARAM_VALUE 0 substream->runtime 4096-ptr_max
PARAM_VALUE 0 substream->runtime->fasync->on s32min-s32max
PARAM_VALUE 0 substream->runtime->trigger_master 4096-ptr_max
PARAM_VALUE 1 cmd 0
BUF_SIZE 0 substream s32min-(-1),1-s32max
BUF_SIZE 0 substream s32min-(-1),1-s32max
CAPPED_DATA 0 substream 1
CAPPED_DATA 0 substream->runtime->trigger_master 1
DATA_SOURCE 0 substream $0
CONTAINER 0 -48-184+0 $(-1)
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
PARAM_COMPARE 0 substream == $0->runtime->trigger_master
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
USER_DATA 0 substream->f_flags 0-u32max
USER_DATA 0 substream->runtime->no_period_wakeup 0-1
USER_DATA 0 substream->runtime->rate_den 0-u32max
USER_DATA 0 substream->runtime->rate_num 0-u32max
USER_DATA 0 substream->runtime->trigger_master->f_flags 0-u32max
USER_DATA 0 *substream->runtime->oss.buffer 0-255
NO_OVERFLOW_SIMPLE 0 substream->runtime->dma_buffer_p->addr
USER_PTR 0 substream->runtime->oss.buffer
HALF_LOCKED2 _T->lock
HALF_LOCKED2 0 &substream->runtime->buffer_mutex
HALF_LOCKED2 0 &substream->self_group.lock
HALF_LOCKED2 0 &substream->self_group.mutex

Smatch assignments to (struct snd_sof_dsp_ops)->pcm_trigger:

sound/soc/sof/amd/acp63.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/pci-lnl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/pci-lnl.c sof_lnl_ops_init() -> (struct snd_sof_dsp_ops)->pcm_trigger [min-max]

sound/soc/sof/intel/pci-nvl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/pci-nvl.c sof_nvl_ops_init() -> (struct snd_sof_dsp_ops)->pcm_trigger [min-max]

sound/soc/sof/amd/rembrandt.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/pci-mtl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/pci-mtl.c sof_mtl_ops_init() -> (struct snd_sof_dsp_ops)->pcm_trigger [min-max]

sound/soc/sof/mediatek/mt8195/mt8195.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/apl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/byt.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/nvl.c sof_nvl_set_ops() -> (struct snd_sof_dsp_ops)->pcm_trigger [min-max]

sound/soc/sof/intel/tgl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/pci-tng.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/hda-common-ops.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [5564397505540169728]

sound/soc/sof/imx/imx9.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/mediatek/mt8186/mt8186.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/imx/imx-common.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/ptl.c sof_ptl_set_ops() -> (struct snd_sof_dsp_ops)->pcm_trigger [min-max]

sound/soc/sof/intel/cnl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/imx/imx8.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/pci-ptl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/pci-ptl.c sof_ptl_ops_init() -> (struct snd_sof_dsp_ops)->pcm_trigger [min-max]

sound/soc/sof/intel/bdw.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/amd/acp7x.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/icl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/amd/acp-common.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/amd/vangogh.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/amd/renoir.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/amd/acp70.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/skl.c (null)() -> (struct snd_sof_dsp_ops)->pcm_trigger [0]

sound/soc/sof/intel/lnl.c sof_lnl_set_ops() -> (struct snd_sof_dsp_ops)->pcm_trigger [min-max]