diff options
| -rw-r--r-- | drivers/staging/greybus/control.c | 23 | ||||
| -rw-r--r-- | drivers/staging/greybus/control.h | 1 | ||||
| -rw-r--r-- | drivers/staging/greybus/greybus_protocols.h | 1 |
3 files changed, 25 insertions, 0 deletions
diff --git a/drivers/staging/greybus/control.c b/drivers/staging/greybus/control.c index 252352ce..a1c78fc6 100644 --- a/drivers/staging/greybus/control.c +++ b/drivers/staging/greybus/control.c @@ -383,6 +383,29 @@ int gb_control_interface_suspend_prepare(struct gb_control *control) return 0; } +int gb_control_interface_deactivate_prepare(struct gb_control *control) +{ + struct gb_control_intf_pm_response response; + int ret; + + ret = gb_operation_sync(control->connection, + GB_CONTROL_TYPE_INTF_DEACTIVATE_PREPARE, NULL, + 0, &response, sizeof(response)); + if (ret) { + dev_err(&control->dev, "failed to send interface deactivate prepare: %d\n", + ret); + return ret; + } + + if (response.status != GB_CONTROL_INTF_PM_OK) { + dev_err(&control->dev, "interface error while preparing deactivate: %d\n", + response.status); + return gb_control_interface_pm_status_map(response.status); + } + + return 0; +} + static ssize_t vendor_string_show(struct device *dev, struct device_attribute *attr, char *buf) { diff --git a/drivers/staging/greybus/control.h b/drivers/staging/greybus/control.h index bc32ca7..2f76ae4 100644 --- a/drivers/staging/greybus/control.h +++ b/drivers/staging/greybus/control.h @@ -57,4 +57,5 @@ int gb_control_bundle_resume(struct gb_control *control, u8 bundle_id); int gb_control_bundle_deactivate(struct gb_control *control, u8 bundle_id); int gb_control_bundle_activate(struct gb_control *control, u8 bundle_id); int gb_control_interface_suspend_prepare(struct gb_control *control); +int gb_control_interface_deactivate_prepare(struct gb_control *control); #endif /* __CONTROL_H */ diff --git a/drivers/staging/greybus/greybus_protocols.h b/drivers/staging/greybus/greybus_protocols.h index cd64a99..10209ae 100644 --- a/drivers/staging/greybus/greybus_protocols.h +++ b/drivers/staging/greybus/greybus_protocols.h @@ -131,6 +131,7 @@ struct gb_protocol_version_response { #define GB_CONTROL_TYPE_BUNDLE_DEACTIVATE 0x11 #define GB_CONTROL_TYPE_BUNDLE_ACTIVATE 0x12 #define GB_CONTROL_TYPE_INTF_SUSPEND_PREPARE 0x13 +#define GB_CONTROL_TYPE_INTF_DEACTIVATE_PREPARE 0x14 struct gb_control_version_request { __u8 major; |
