1 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ 2 /* Copyright(c) 2015-17 Intel Corporation. */ 3 4 #ifndef __SDW_INTEL_LOCAL_H 5 #define __SDW_INTEL_LOCAL_H 6 7 /** 8 * struct sdw_intel_link_res - Soundwire Intel link resource structure, 9 * typically populated by the controller driver. 10 * @mmio_base: mmio base of SoundWire registers 11 * @registers: Link IO registers base 12 * @shim: Audio shim pointer 13 * @alh: ALH (Audio Link Hub) pointer 14 * @irq: Interrupt line 15 * @ops: Shim callback ops 16 * @dev: device implementing hw_params and free callbacks 17 * @shim_lock: mutex to handle access to shared SHIM registers 18 * @shim_mask: global pointer to check SHIM register initialization 19 * @clock_stop_quirks: mask defining requested behavior on pm_suspend 20 * @link_mask: global mask needed for power-up/down sequences 21 * @cdns: Cadence master descriptor 22 * @list: used to walk-through all masters exposed by the same controller 23 */ 24 struct sdw_intel_link_res { 25 void __iomem *mmio_base; /* not strictly needed, useful for debug */ 26 void __iomem *registers; 27 void __iomem *shim; 28 void __iomem *alh; 29 int irq; 30 const struct sdw_intel_ops *ops; 31 struct device *dev; 32 struct mutex *shim_lock; /* protect shared registers */ 33 u32 *shim_mask; 34 u32 clock_stop_quirks; 35 u32 link_mask; 36 struct sdw_cdns *cdns; 37 struct list_head list; 38 }; 39 40 struct sdw_intel { 41 struct sdw_cdns cdns; 42 int instance; 43 struct sdw_intel_link_res *link_res; 44 bool startup_done; 45 #ifdef CONFIG_DEBUG_FS 46 struct dentry *debugfs; 47 #endif 48 }; 49 50 int intel_link_startup(struct auxiliary_device *auxdev); 51 int intel_link_process_wakeen_event(struct auxiliary_device *auxdev); 52 53 struct sdw_intel_link_dev { 54 struct auxiliary_device auxdev; 55 struct sdw_intel_link_res link_res; 56 }; 57 58 #define auxiliary_dev_to_sdw_intel_link_dev(auxiliary_dev) \ 59 container_of(auxiliary_dev, struct sdw_intel_link_dev, auxdev) 60 61 #endif /* __SDW_INTEL_LOCAL_H */ 62