diff options
Diffstat (limited to 'drivers/firmware/arm_scmi/system.c')
| -rw-r--r-- | drivers/firmware/arm_scmi/system.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/firmware/arm_scmi/system.c b/drivers/firmware/arm_scmi/system.c index 9383d7584539..ec3d355d1772 100644 --- a/drivers/firmware/arm_scmi/system.c +++ b/drivers/firmware/arm_scmi/system.c @@ -13,6 +13,9 @@ #include "protocols.h" #include "notify.h" +/* Updated only after ALL the mandatory features for that version are merged */ +#define SCMI_PROTOCOL_SUPPORTED_VERSION 0x20001 + #define SCMI_SYSTEM_NUM_SOURCES 1 enum scmi_system_protocol_cmd { @@ -33,8 +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) { @@ -111,6 +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, }; @@ -144,7 +160,10 @@ static int scmi_system_protocol_init(const struct scmi_protocol_handle *ph) if (PROTOCOL_REV_MAJOR(pinfo->version) >= 0x2) pinfo->graceful_timeout_supported = true; - return ph->set_priv(ph, pinfo); + 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); } static const struct scmi_protocol scmi_system = { @@ -153,6 +172,7 @@ static const struct scmi_protocol scmi_system = { .instance_init = &scmi_system_protocol_init, .ops = NULL, .events = &system_protocol_events, + .supported_version = SCMI_PROTOCOL_SUPPORTED_VERSION, }; DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(system, scmi_system) |