diff options
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/acpi_bus.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index afeed6e72049..ec6a673dcb95 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -366,6 +366,98 @@ struct acpi_device_data { struct acpi_gpio_mapping; +#define ACPI_DEVICE_SWNODE_ROOT 0 + +/* + * The maximum expected number of CSI-2 data lanes. + * + * This number is not expected to ever have to be equal to or greater than the + * number of bits in an unsigned long variable, but if it needs to be increased + * above that limit, code will need to be adjusted accordingly. + */ +#define ACPI_DEVICE_CSI2_DATA_LANES 8 + +#define ACPI_DEVICE_SWNODE_PORT_NAME_LENGTH 8 + +enum acpi_device_swnode_dev_props { + ACPI_DEVICE_SWNODE_DEV_ROTATION, + ACPI_DEVICE_SWNODE_DEV_CLOCK_FREQUENCY, + ACPI_DEVICE_SWNODE_DEV_LED_MAX_MICROAMP, + ACPI_DEVICE_SWNODE_DEV_FLASH_MAX_MICROAMP, + ACPI_DEVICE_SWNODE_DEV_FLASH_MAX_TIMEOUT_US, + ACPI_DEVICE_SWNODE_DEV_NUM_OF, + ACPI_DEVICE_SWNODE_DEV_NUM_ENTRIES +}; + +enum acpi_device_swnode_port_props { + ACPI_DEVICE_SWNODE_PORT_REG, + ACPI_DEVICE_SWNODE_PORT_NUM_OF, + ACPI_DEVICE_SWNODE_PORT_NUM_ENTRIES +}; + +enum acpi_device_swnode_ep_props { + ACPI_DEVICE_SWNODE_EP_REMOTE_EP, + ACPI_DEVICE_SWNODE_EP_BUS_TYPE, + ACPI_DEVICE_SWNODE_EP_REG, + ACPI_DEVICE_SWNODE_EP_CLOCK_LANES, + ACPI_DEVICE_SWNODE_EP_DATA_LANES, + ACPI_DEVICE_SWNODE_EP_LANE_POLARITIES, + /* TX only */ + ACPI_DEVICE_SWNODE_EP_LINK_FREQUENCIES, + ACPI_DEVICE_SWNODE_EP_NUM_OF, + ACPI_DEVICE_SWNODE_EP_NUM_ENTRIES +}; + +/* + * Each device has a root software node plus two times as many nodes as the + * number of CSI-2 ports. + */ +#define ACPI_DEVICE_SWNODE_PORT(port) (2 * (port) + 1) +#define ACPI_DEVICE_SWNODE_EP(endpoint) \ + (ACPI_DEVICE_SWNODE_PORT(endpoint) + 1) + +/** + * struct acpi_device_software_node_port - MIPI DisCo for Imaging CSI-2 port + * @port_name: Port name. + * @data_lanes: "data-lanes" property values. + * @lane_polarities: "lane-polarities" property values. + * @link_frequencies: "link_frequencies" property values. + * @port_nr: Port number. + * @crs_crs2_local: _CRS CSI2 record present (i.e. this is a transmitter one). + * @port_props: Port properties. + * @ep_props: Endpoint properties. + * @remote_ep: Reference to the remote endpoint. + */ +struct acpi_device_software_node_port { + char port_name[ACPI_DEVICE_SWNODE_PORT_NAME_LENGTH + 1]; + u32 data_lanes[ACPI_DEVICE_CSI2_DATA_LANES]; + u32 lane_polarities[ACPI_DEVICE_CSI2_DATA_LANES + 1 /* clock lane */]; + u64 link_frequencies[ACPI_DEVICE_CSI2_DATA_LANES]; + unsigned int port_nr; + bool crs_csi2_local; + + struct property_entry port_props[ACPI_DEVICE_SWNODE_PORT_NUM_ENTRIES]; + struct property_entry ep_props[ACPI_DEVICE_SWNODE_EP_NUM_ENTRIES]; + + struct software_node_ref_args remote_ep[1]; +}; + +/** + * struct acpi_device_software_nodes - Software nodes for an ACPI device + * @dev_props: Device properties. + * @nodes: Software nodes for root as well as ports and endpoints. + * @nodeprts: Array of software node pointers, for (un)registering them. + * @ports: Information related to each port and endpoint within a port. + * @num_ports: The number of ports. + */ +struct acpi_device_software_nodes { + struct property_entry dev_props[ACPI_DEVICE_SWNODE_DEV_NUM_ENTRIES]; + struct software_node *nodes; + const struct software_node **nodeptrs; + struct acpi_device_software_node_port *ports; + unsigned int num_ports; +}; + /* Device */ struct acpi_device { u32 pld_crc; @@ -384,6 +476,7 @@ struct acpi_device { struct acpi_device_data data; struct acpi_scan_handler *handler; struct acpi_hotplug_context *hp; + struct acpi_device_software_nodes *swnodes; const struct acpi_gpio_mapping *driver_gpios; void *driver_data; struct device dev; @@ -542,6 +635,7 @@ int acpi_device_set_power(struct acpi_device *device, int state); int acpi_bus_init_power(struct acpi_device *device); int acpi_device_fix_up_power(struct acpi_device *device); void acpi_device_fix_up_power_extended(struct acpi_device *adev); +void acpi_device_fix_up_power_children(struct acpi_device *adev); int acpi_bus_update_power(acpi_handle handle, int *state_p); int acpi_device_update_power(struct acpi_device *device, int *state_p); bool acpi_bus_power_manageable(acpi_handle handle); |