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path: root/drivers/firmware/arm_scmi/system.c
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Diffstat (limited to 'drivers/firmware/arm_scmi/system.c')
-rw-r--r--drivers/firmware/arm_scmi/system.c63
1 files changed, 36 insertions, 27 deletions
diff --git a/drivers/firmware/arm_scmi/system.c b/drivers/firmware/arm_scmi/system.c
index 283e12d5f24b..e5175ef73b40 100644
--- a/drivers/firmware/arm_scmi/system.c
+++ b/drivers/firmware/arm_scmi/system.c
@@ -2,11 +2,12 @@
/*
* System Control and Management Interface (SCMI) System Power Protocol
*
- * Copyright (C) 2020 ARM Ltd.
+ * Copyright (C) 2020-2021 ARM Ltd.
*/
#define pr_fmt(fmt) "SCMI Notifications SYSTEM - " fmt
+#include <linux/module.h>
#include <linux/scmi_protocol.h>
#include "common.h"
@@ -32,43 +33,44 @@ struct scmi_system_info {
u32 version;
};
-static int scmi_system_request_notify(const struct scmi_handle *handle,
+static int scmi_system_request_notify(const struct scmi_protocol_handle *ph,
bool enable)
{
int ret;
struct scmi_xfer *t;
struct scmi_system_power_state_notify *notify;
- ret = scmi_xfer_get_init(handle, SYSTEM_POWER_STATE_NOTIFY,
- SCMI_PROTOCOL_SYSTEM, sizeof(*notify), 0, &t);
+ ret = ph->xops->xfer_get_init(ph, SYSTEM_POWER_STATE_NOTIFY,
+ sizeof(*notify), 0, &t);
if (ret)
return ret;
notify = t->tx.buf;
notify->notify_enable = enable ? cpu_to_le32(BIT(0)) : 0;
- ret = scmi_do_xfer(handle, t);
+ ret = ph->xops->do_xfer(ph, t);
- scmi_xfer_put(handle, t);
+ ph->xops->xfer_put(ph, t);
return ret;
}
-static int scmi_system_set_notify_enabled(const struct scmi_handle *handle,
+static int scmi_system_set_notify_enabled(const struct scmi_protocol_handle *ph,
u8 evt_id, u32 src_id, bool enable)
{
int ret;
- ret = scmi_system_request_notify(handle, enable);
+ ret = scmi_system_request_notify(ph, enable);
if (ret)
pr_debug("FAIL_ENABLE - evt[%X] - ret:%d\n", evt_id, ret);
return ret;
}
-static void *scmi_system_fill_custom_report(const struct scmi_handle *handle,
- u8 evt_id, ktime_t timestamp,
- const void *payld, size_t payld_sz,
- void *report, u32 *src_id)
+static void *
+scmi_system_fill_custom_report(const struct scmi_protocol_handle *ph,
+ u8 evt_id, ktime_t timestamp,
+ const void *payld, size_t payld_sz,
+ void *report, u32 *src_id)
{
const struct scmi_system_power_state_notifier_payld *p = payld;
struct scmi_system_power_state_notifier_report *r = report;
@@ -101,31 +103,38 @@ static const struct scmi_event_ops system_event_ops = {
.fill_custom_report = scmi_system_fill_custom_report,
};
-static int scmi_system_protocol_init(struct scmi_handle *handle)
+static const struct scmi_protocol_events system_protocol_events = {
+ .queue_sz = SCMI_PROTO_QUEUE_SZ,
+ .ops = &system_event_ops,
+ .evts = system_events,
+ .num_events = ARRAY_SIZE(system_events),
+ .num_sources = SCMI_SYSTEM_NUM_SOURCES,
+};
+
+static int scmi_system_protocol_init(const struct scmi_protocol_handle *ph)
{
u32 version;
struct scmi_system_info *pinfo;
- scmi_version_get(handle, SCMI_PROTOCOL_SYSTEM, &version);
+ ph->xops->version_get(ph, &version);
- dev_dbg(handle->dev, "System Power Version %d.%d\n",
+ dev_dbg(ph->dev, "System Power Version %d.%d\n",
PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version));
- pinfo = devm_kzalloc(handle->dev, sizeof(*pinfo), GFP_KERNEL);
+ pinfo = devm_kzalloc(ph->dev, sizeof(*pinfo), GFP_KERNEL);
if (!pinfo)
return -ENOMEM;
- scmi_register_protocol_events(handle,
- SCMI_PROTOCOL_SYSTEM, SCMI_PROTO_QUEUE_SZ,
- &system_event_ops,
- system_events,
- ARRAY_SIZE(system_events),
- SCMI_SYSTEM_NUM_SOURCES);
-
pinfo->version = version;
- handle->system_priv = pinfo;
-
- return 0;
+ return ph->set_priv(ph, pinfo);
}
-DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(SCMI_PROTOCOL_SYSTEM, system)
+static const struct scmi_protocol scmi_system = {
+ .id = SCMI_PROTOCOL_SYSTEM,
+ .owner = THIS_MODULE,
+ .instance_init = &scmi_system_protocol_init,
+ .ops = NULL,
+ .events = &system_protocol_events,
+};
+
+DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(system, scmi_system)