From 5ad3d1cf7d34c00aa5b425d93373b5c0044aa0a9 Mon Sep 17 00:00:00 2001 From: Cristian Marussi Date: Tue, 16 Mar 2021 12:48:30 +0000 Subject: firmware: arm_scmi: Introduce new devres notification ops Expose to the SCMI drivers a new alternative devres managed notifications API based on protocol handles. All drivers still keep using the old API, no functional change. Link: https://lore.kernel.org/r/20210316124903.35011-6-cristian.marussi@arm.com Tested-by: Florian Fainelli Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla --- include/linux/scmi_protocol.h | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) (limited to 'include/linux/scmi_protocol.h') diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index a9becd356fe8..2b66b243e841 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -544,6 +544,10 @@ struct scmi_voltage_ops { /** * struct scmi_notify_ops - represents notifications' operations provided by * SCMI core + * @devm_event_notifier_register: Managed registration of a notifier_block for + * the requested event + * @devm_event_notifier_unregister: Managed unregistration of a notifier_block + * for the requested event * @register_event_notifier: Register a notifier_block for the requested event * @unregister_event_notifier: Unregister a notifier_block for the requested * event @@ -553,7 +557,9 @@ struct scmi_voltage_ops { * tuple: (proto_id, evt_id, src_id) using the provided register/unregister * interface where: * - * @handle: The handle identifying the platform instance to use + * @sdev: The scmi_device to use when calling the devres managed ops devm_ + * @handle: The handle identifying the platform instance to use, when not + * calling the managed ops devm_ * @proto_id: The protocol ID as in SCMI Specification * @evt_id: The message ID of the desired event as in SCMI Specification * @src_id: A pointer to the desired source ID if different sources are @@ -576,11 +582,21 @@ struct scmi_voltage_ops { * @report: A custom struct describing the specific event delivered */ struct scmi_notify_ops { + int (*devm_event_notifier_register)(struct scmi_device *sdev, + u8 proto_id, u8 evt_id, + const u32 *src_id, + struct notifier_block *nb); + int (*devm_event_notifier_unregister)(struct scmi_device *sdev, + u8 proto_id, u8 evt_id, + const u32 *src_id, + struct notifier_block *nb); int (*register_event_notifier)(const struct scmi_handle *handle, - u8 proto_id, u8 evt_id, u32 *src_id, + u8 proto_id, u8 evt_id, + const u32 *src_id, struct notifier_block *nb); int (*unregister_event_notifier)(const struct scmi_handle *handle, - u8 proto_id, u8 evt_id, u32 *src_id, + u8 proto_id, u8 evt_id, + const u32 *src_id, struct notifier_block *nb); }; -- cgit v1.2.3