linux/soundwire/sdw_intel.h

1 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
2 /* Copyright(c) 2015-17 Intel Corporation. */
46  * struct sdw_intel_acpi_info - Soundwire Intel information found in ACPI tables
48  * @count: link count found with "sdw-master-count" property
49  * @link_mask: bit-wise mask listing links enabled by BIOS menu
63 /* Intel clock-stop/pm_runtime quirk definitions */
73  * Stop the bus during pm_runtime suspend. If set, a complete bus
74  * reset and re-enumeration will be performed when the bus
75  * restarts. This mode shall not be used if Slave devices can generate
76  * in-band wakes.
81  * Stop the bus during pm_suspend if Slaves are not wake capable
82  * (e.g. speaker amplifiers). The clock-stop mode is typically
83  * slightly higher power than when the IP is completely powered-off.
88  * Require a bus reset (and complete re-enumeration) when exiting
89  * clock stop modes. This may be needed if the controller power was
103  * struct sdw_intel_ctx - context allocated by the controller
108  * @link_mask: bit-wise mask listing SoundWire links reported by the
112  * @links: information for each link (controller-specific and kept
134  * struct sdw_intel_res - Soundwire Intel global resource structure,
144  * @link_mask: bit-wise mask listing links selected by the DSP driver
146  * machine-specific quirks are handled in the DSP driver.
171  * on e.g. which machine driver to select (I2S mode, HDaudio or