drm_dp_read_dpcd_caps identifier - Linux source code next-20260811

Projects

linux

Versions

FIXME
- FIXME
  - next-20260811

Documented in 1 files:

drivers/gpu/drm/display/drm_dp_helper.c, line 1227

Defined in 1 files as a prototype:

include/drm/display/drm_dp_helper.h, line 694 (as a prototype)

Defined in 1 files as a function:

drivers/gpu/drm/display/drm_dp_helper.c, line 1240 (as a function)

Referenced in 15 files:

Smatch caller information:

drivers/gpu/drm/nouveau/nouveau_dp.c nouveau_dp_probe_dpcd() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
PARAM_VALUE	0	aux->hw_mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	aux->hw_mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	aux->powered_down	0
BUF_SIZE	0	aux	2992
BUF_SIZE	1	dpcd	15
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
LOCK2		&outp->dp.hpd_irq_lock
HALF_LOCKED2		&connector->dev->mode_config.connection_mutex
HALF_LOCKED2		&dev->mode_config.mutex
TYPE_LOCK		(struct drm_mode_config)->connection_mutex
TYPE_LOCK		(struct nouveau_encoder)->dp.hpd_irq_lock

drivers/gpu/drm/nouveau/nouveau_dp.c nouveau_dp_probe_dpcd() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
PARAM_VALUE	0	aux->drm_dev	0,4096-ptr_max
PARAM_VALUE	0	aux->powered_down	0
BUF_SIZE	0	aux	2992
BUF_SIZE	1	dpcd	15
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
LOCK2		&outp->dp.hpd_irq_lock
HALF_LOCKED2		&connector->dev->mode_config.connection_mutex
HALF_LOCKED2		&dev->mode_config.mutex
TYPE_LOCK		(struct drm_mode_config)->connection_mutex
TYPE_LOCK		(struct nouveau_encoder)->dp.hpd_irq_lock

drivers/gpu/drm/msm/dp/dp_panel.c msm_dp_panel_read_dpcd() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	15
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&bridge_connector->encoder->bridge_chain_mutex
HALF_LOCKED2		_T->lock

drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c hibmc_dp_get_dpcd() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	15
TASK_NOT_RUNNING
HALF_LOCKED2		&connector->dev->mode_config.connection_mutex
HALF_LOCKED2		&dev->mode_config.mutex
TYPE_LOCK		(struct drm_mode_config)->connection_mutex

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c resume_mst_branch_status() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
LOCK2		&mgr->lock
HALF_LOCKED2		&adev->reset_domain->sem
HALF_LOCKED2		&of->mutex
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		global &drm_unplug_srcu
TYPE_LOCK		(struct drm_dp_mst_topology_mgr)->lock

drivers/gpu/drm/i915/display/intel_lspcon.c intel_lspcon_init() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&_connector->mutex

drivers/gpu/drm/i915/display/intel_dp.c intel_edp_init_dpcd() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
PARAM_VALUE	0	aux->cec.lock.magic	4096-ptr_max
PARAM_VALUE	0	aux->ddc.algo	3072115201830367232
PARAM_VALUE	0	aux->ddc.algo_data	4096-ptr_max
PARAM_VALUE	0	aux->ddc.lock_ops	5045879659154841600
PARAM_VALUE	0	aux->ddc.retries	3
PARAM_VALUE	0	aux->hw_mutex.first_waiter	0
PARAM_VALUE	0	aux->hw_mutex.magic	4096-ptr_max
PARAM_VALUE	0	aux->hw_mutex.osq.tail.counter	0
PARAM_VALUE	0	aux->hw_mutex.owner.counter	0
PARAM_VALUE	0	aux->transfer	4998951970533105664
PARAM_VALUE	1	dpcd	4096-ptr_max
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING

drivers/gpu/drm/display/drm_dp_mst_topology.c drm_dp_mst_dsc_aux_for_port() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
PARAM_VALUE	0	aux->drm_dev	0,4096-ptr_max
PARAM_VALUE	0	aux->hw_mutex.dep_map->name	0-255
PARAM_VALUE	0	aux->hw_mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	aux->hw_mutex.first_waiter->task->blocked_lock.dep_map->name	0-255
PARAM_VALUE	0	aux->hw_mutex.first_waiter->task->blocked_lock.owner	(-1)
PARAM_VALUE	0	aux->hw_mutex.first_waiter->task->blocked_lock.owner_cpu	4294967295
PARAM_VALUE	0	aux->hw_mutex.first_waiter->task->blocked_lock.raw_lock.val.counter	s32min-s32max
PARAM_VALUE	0	aux->hw_mutex.first_waiter->task->blocked_on	0
PARAM_VALUE	0	aux->hw_mutex.first_waiter->task->usage.refs.counter	s32min-s32max
BUF_SIZE	0	aux	(-1),2992
BUF_SIZE	0	aux	(-1),2992
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING

drivers/gpu/drm/display/drm_dp_mst_topology.c drm_dp_mst_dump_topology() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	64
RX_PATH
TASK_NOT_RUNNING
LOCK2		&m->lock
LOCK2		&mgr->base.lock
LOCK2		&mgr->lock
TYPE_LOCK		(struct drm_dp_mst_topology_mgr)->lock
TYPE_LOCK		(struct drm_private_obj)->lock
TYPE_LOCK		(struct seq_file)->lock

drivers/gpu/drm/display/drm_dp_mst_topology.c drm_dp_mst_topology_mgr_resume() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
LOCK2		&mgr->lock
TYPE_LOCK		(struct drm_dp_mst_topology_mgr)->lock

drivers/gpu/drm/display/drm_dp_mst_topology.c drm_dp_mst_topology_mgr_set_mst() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
LOCK2		&mgr->lock
HALF_LOCKED2		&attr->mutex
HALF_LOCKED2		&outp->dp.hpd_irq_lock
TYPE_LOCK		(struct drm_dp_mst_topology_mgr)->lock

drivers/gpu/drm/bridge/synopsys/dw-dp.c dw_dp_link_parse() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
PARAM_VALUE	1	*dpcd	0-255
BUF_SIZE	1	dpcd	15
MEM_ZERO	1	dpcd
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&connector->dev->mode_config.connection_mutex

drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c hibmc_dp_link_training() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		&state->dev->mode_config.connection_mutex
HALF_LOCKED2		&state->dev->mode_config.connection_mutex.mutex

drivers/gpu/drm/i915/display/intel_dp_link_training.c intel_dp_init_lttpr_and_dprx_caps() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING

drivers/gpu/drm/i915/display/intel_dp_link_training.c intel_dp_read_dprx_caps() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
BUF_SIZE	1	dpcd	15
BUF_SIZE	1	dpcd	15
DATA_SOURCE	1	dpcd	$1
RX_PATH
TASK_NOT_RUNNING

drivers/gpu/drm/i915/display/intel_dp_mst.c detect_dsc_hblank_expansion_quirk() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
BUF_SIZE	0	aux	(-1),2992
BUF_SIZE	0	aux	(-1),2992
BUF_SIZE	1	dpcd	15
HALF_LOCKED2		&mgr->probe_lock
HALF_LOCKED2		&pool->lock

drivers/gpu/drm/i915/display/intel_dp_mst.c intel_dp_mst_read_decompression_port_dsc_caps() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
BUF_SIZE	0	aux	(-1),2992
BUF_SIZE	0	aux	(-1),2992
BUF_SIZE	1	dpcd	15
HALF_LOCKED2		&mgr->probe_lock
HALF_LOCKED2		&pool->lock

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c analogix_dp_commit() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&first_bridge->encoder->bridge_chain_mutex
HALF_LOCKED2		&old_state->dev->mode_config.connection_mutex
HALF_LOCKED2		&old_state->dev->mode_config.connection_mutex.mutex

drivers/gpu/drm/msm/dp/dp_display.c msm_dp_bridge_detect() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
LOCK2		_T->lock
HALF_LOCKED2		&connector->dev->mode_config.connection_mutex

drivers/gpu/drm/msm/dp/dp_display.c msm_dp_display_process_hpd_high() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&bridge_connector->encoder->bridge_chain_mutex
HALF_LOCKED2		_T->lock

drivers/gpu/drm/mediatek/mtk_dp.c mtk_dp_parse_capabilities() -> drm_dp_read_dpcd_caps()

Type	Parameter	Key	Value
PARAM_VALUE	0	aux	4096-ptr_max
PARAM_VALUE	1	dpcd	4096-ptr_max
BUF_SIZE	1	dpcd	15
RX_PATH
TASK_NOT_RUNNING