diff options
Diffstat (limited to 'include/linux/soundwire/sdw.h')
| -rw-r--r-- | include/linux/soundwire/sdw.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 76ce3f3ac0f2..9e4537f409c2 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -637,7 +637,6 @@ struct sdw_slave_ops { * @dev: Linux device * @status: Status reported by the Slave * @bus: Bus handle - * @ops: Slave callback ops * @prop: Slave properties * @debugfs: Slave debugfs * @node: node for bus list @@ -646,9 +645,6 @@ struct sdw_slave_ops { * @dev_num: Current Device Number, values can be 0 or dev_num_sticky * @dev_num_sticky: one-time static Device Number assigned by Bus * @probed: boolean tracking driver state - * @probe_complete: completion utility to control potential races - * on startup between driver probe/initialization and SoundWire - * Slave state changes/implementation-defined interrupts * @enumeration_complete: completion utility to control potential races * on startup between device enumeration and read/write access to the * Slave device @@ -663,13 +659,13 @@ struct sdw_slave_ops { * for a Slave happens for the first time after enumeration * @is_mockup_device: status flag used to squelch errors in the command/control * protocol for SoundWire mockup devices + * @sdw_dev_lock: mutex used to protect callbacks/remove races */ struct sdw_slave { struct sdw_slave_id id; struct device dev; enum sdw_slave_status status; struct sdw_bus *bus; - const struct sdw_slave_ops *ops; struct sdw_slave_prop prop; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs; @@ -680,12 +676,12 @@ struct sdw_slave { u16 dev_num; u16 dev_num_sticky; bool probed; - struct completion probe_complete; struct completion enumeration_complete; struct completion initialization_complete; u32 unattach_request; bool first_interrupt_done; bool is_mockup_device; + struct mutex sdw_dev_lock; /* protect callbacks/remove races */ }; #define dev_to_sdw_dev(_dev) container_of(_dev, struct sdw_slave, dev) @@ -843,6 +839,8 @@ struct sdw_defer { * @set_bus_conf: Set the bus configuration * @pre_bank_switch: Callback for pre bank switch * @post_bank_switch: Callback for post bank switch + * @read_ping_status: Read status from PING frames, reported with two bits per Device. + * Bits 31:24 are reserved. */ struct sdw_master_ops { int (*read_prop)(struct sdw_bus *bus); @@ -859,6 +857,7 @@ struct sdw_master_ops { struct sdw_bus_params *params); int (*pre_bank_switch)(struct sdw_bus *bus); int (*post_bank_switch)(struct sdw_bus *bus); + u32 (*read_ping_status)(struct sdw_bus *bus); }; @@ -893,6 +892,9 @@ struct sdw_master_ops { * meaningful if multi_link is set. If set to 1, hardware-based * synchronization will be used even if a stream only uses a single * SoundWire segment. + * @dev_num_ida_min: if set, defines the minimum values for the IDA + * used to allocate system-unique device numbers. This value needs to be + * identical across all SoundWire bus in the system. */ struct sdw_bus { struct device *dev; @@ -917,12 +919,15 @@ struct sdw_bus { u32 bank_switch_timeout; bool multi_link; int hw_sync_min_links; + int dev_num_ida_min; }; int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent, struct fwnode_handle *fwnode); void sdw_bus_master_delete(struct sdw_bus *bus); +void sdw_show_ping_status(struct sdw_bus *bus, bool sync_delay); + /** * sdw_port_config: Master or Slave Port configuration * |