@@ -36,8 +36,20 @@ struct scmi_system_power_state_notifier_payld {
struct scmi_system_info {
u32 version;
bool graceful_timeout_supported;
+ bool power_state_notify_cmd;
};
+static bool scmi_system_notify_supported(const struct scmi_protocol_handle *ph,
+ u8 evt_id, u32 src_id)
+{
+ struct scmi_system_info *pinfo = ph->get_priv(ph);
+
+ if (evt_id != SCMI_EVENT_SYSTEM_POWER_STATE_NOTIFIER)
+ return false;
+
+ return pinfo->power_state_notify_cmd;
+}
+
static int scmi_system_request_notify(const struct scmi_protocol_handle *ph,
bool enable)
{
@@ -114,6 +126,7 @@ static const struct scmi_event system_events[] = {
};
static const struct scmi_event_ops system_event_ops = {
+ .is_notify_supported = scmi_system_notify_supported,
.set_notify_enabled = scmi_system_set_notify_enabled,
.fill_custom_report = scmi_system_fill_custom_report,
};
@@ -147,6 +160,9 @@ static int scmi_system_protocol_init(const struct scmi_protocol_handle *ph)
if (PROTOCOL_REV_MAJOR(pinfo->version) >= 0x2)
pinfo->graceful_timeout_supported = true;
+ if (!ph->hops->protocol_msg_check(ph, SYSTEM_POWER_STATE_NOTIFY, NULL))
+ pinfo->power_state_notify_cmd = true;
+
return ph->set_priv(ph, pinfo, version);
}
Add a preliminary check to verify if SysPower-related notify enable commands are supported at all by the running platform, and then provide the callback needed to allow the core SCMI notification subsytem to fine-grain check if a specific resource domain supports notifications. Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> --- drivers/firmware/arm_scmi/system.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)