Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->sensor_ops still
around to ease transition.

Remove handle->sensor_priv now unused.

Signed-off-by: Cristian Marussi <cristian.maru...@arm.com>
---
 drivers/firmware/arm_scmi/sensors.c | 275 ++++++++++++++++++----------
 include/linux/scmi_protocol.h       |  22 ++-
 2 files changed, 194 insertions(+), 103 deletions(-)

diff --git a/drivers/firmware/arm_scmi/sensors.c 
b/drivers/firmware/arm_scmi/sensors.c
index e1e428d59d5f..5d2da4f78108 100644
--- a/drivers/firmware/arm_scmi/sensors.c
+++ b/drivers/firmware/arm_scmi/sensors.c
@@ -201,21 +201,21 @@ struct sensors_info {
        struct scmi_sensor_info *sensors;
 };
 
-static int scmi_sensor_attributes_get(const struct scmi_handle *handle,
+static int scmi_sensor_attributes_get(const struct scmi_protocol_handle *ph,
                                      struct sensors_info *si)
 {
        int ret;
        struct scmi_xfer *t;
        struct scmi_msg_resp_sensor_attributes *attr;
 
-       ret = scmi_xfer_get_init(handle, PROTOCOL_ATTRIBUTES,
-                                SCMI_PROTOCOL_SENSOR, 0, sizeof(*attr), &t);
+       ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES,
+                                     0, sizeof(*attr), &t);
        if (ret)
                return ret;
 
        attr = t->rx.buf;
 
-       ret = scmi_do_xfer(handle, t);
+       ret = ph->xops->do_xfer(ph, t);
        if (!ret) {
                si->num_sensors = le16_to_cpu(attr->num_sensors);
                si->max_requests = attr->max_requests;
@@ -224,7 +224,7 @@ static int scmi_sensor_attributes_get(const struct 
scmi_handle *handle,
                si->reg_size = le32_to_cpu(attr->reg_size);
        }
 
-       scmi_xfer_put(handle, t);
+       ph->xops->xfer_put(ph, t);
        return ret;
 }
 
@@ -235,7 +235,7 @@ static inline void scmi_parse_range_attrs(struct 
scmi_range_attrs *out,
        out->max_range = get_unaligned_le64((void *)&in->max_range_low);
 }
 
-static int scmi_sensor_update_intervals(const struct scmi_handle *handle,
+static int scmi_sensor_update_intervals(const struct scmi_protocol_handle *ph,
                                        struct scmi_sensor_info *s)
 {
        int ret, cnt;
@@ -245,8 +245,8 @@ static int scmi_sensor_update_intervals(const struct 
scmi_handle *handle,
        struct scmi_msg_resp_sensor_list_update_intervals *buf;
        struct scmi_msg_sensor_list_update_intervals *msg;
 
-       ret = scmi_xfer_get_init(handle, SENSOR_LIST_UPDATE_INTERVALS,
-                                SCMI_PROTOCOL_SENSOR, sizeof(*msg), 0, &ti);
+       ret = ph->xops->xfer_get_init(ph, SENSOR_LIST_UPDATE_INTERVALS,
+                                     sizeof(*msg), 0, &ti);
        if (ret)
                return ret;
 
@@ -259,7 +259,7 @@ static int scmi_sensor_update_intervals(const struct 
scmi_handle *handle,
                msg->id = cpu_to_le32(s->id);
                msg->index = cpu_to_le32(desc_index);
 
-               ret = scmi_do_xfer(handle, ti);
+               ret = ph->xops->do_xfer(ph, ti);
                if (ret)
                        break;
 
@@ -277,7 +277,7 @@ static int scmi_sensor_update_intervals(const struct 
scmi_handle *handle,
                        /* segmented intervals are reported in one triplet */
                        if (s->intervals.segmented &&
                            (num_remaining || num_returned != 3)) {
-                               dev_err(handle->dev,
+                               dev_err(ph->dev,
                                        "Sensor ID:%d advertises an invalid 
segmented interval (%d)\n",
                                        s->id, s->intervals.count);
                                s->intervals.segmented = false;
@@ -288,7 +288,7 @@ static int scmi_sensor_update_intervals(const struct 
scmi_handle *handle,
                        /* Direct allocation when exceeding pre-allocated */
                        if (s->intervals.count >= SCMI_MAX_PREALLOC_POOL) {
                                s->intervals.desc =
-                                       devm_kcalloc(handle->dev,
+                                       devm_kcalloc(ph->dev,
                                                     s->intervals.count,
                                                     sizeof(*s->intervals.desc),
                                                     GFP_KERNEL);
@@ -300,7 +300,7 @@ static int scmi_sensor_update_intervals(const struct 
scmi_handle *handle,
                                }
                        }
                } else if (desc_index + num_returned > s->intervals.count) {
-                       dev_err(handle->dev,
+                       dev_err(ph->dev,
                                "No. of update intervals can't exceed %d\n",
                                s->intervals.count);
                        ret = -EINVAL;
@@ -313,18 +313,18 @@ static int scmi_sensor_update_intervals(const struct 
scmi_handle *handle,
 
                desc_index += num_returned;
 
-               scmi_reset_rx_to_maxsz(handle, ti);
+               ph->xops->reset_rx_to_maxsz(ph, ti);
                /*
                 * check for both returned and remaining to avoid infinite
                 * loop due to buggy firmware
                 */
        } while (num_returned && num_remaining);
 
-       scmi_xfer_put(handle, ti);
+       ph->xops->xfer_put(ph, ti);
        return ret;
 }
 
-static int scmi_sensor_axis_description(const struct scmi_handle *handle,
+static int scmi_sensor_axis_description(const struct scmi_protocol_handle *ph,
                                        struct scmi_sensor_info *s)
 {
        int ret, cnt;
@@ -334,13 +334,13 @@ static int scmi_sensor_axis_description(const struct 
scmi_handle *handle,
        struct scmi_msg_resp_sensor_axis_description *buf;
        struct scmi_msg_sensor_axis_description_get *msg;
 
-       s->axis = devm_kcalloc(handle->dev, s->num_axis,
+       s->axis = devm_kcalloc(ph->dev, s->num_axis,
                               sizeof(*s->axis), GFP_KERNEL);
        if (!s->axis)
                return -ENOMEM;
 
-       ret = scmi_xfer_get_init(handle, SENSOR_AXIS_DESCRIPTION_GET,
-                                SCMI_PROTOCOL_SENSOR, sizeof(*msg), 0, &te);
+       ret = ph->xops->xfer_get_init(ph, SENSOR_AXIS_DESCRIPTION_GET,
+                                     sizeof(*msg), 0, &te);
        if (ret)
                return ret;
 
@@ -354,7 +354,7 @@ static int scmi_sensor_axis_description(const struct 
scmi_handle *handle,
                msg->id = cpu_to_le32(s->id);
                msg->axis_desc_index = cpu_to_le32(desc_index);
 
-               ret = scmi_do_xfer(handle, te);
+               ret = ph->xops->do_xfer(ph, te);
                if (ret)
                        break;
 
@@ -363,7 +363,7 @@ static int scmi_sensor_axis_description(const struct 
scmi_handle *handle,
                num_remaining = NUM_AXIS_REMAINING(flags);
 
                if (desc_index + num_returned > s->num_axis) {
-                       dev_err(handle->dev, "No. of axis can't exceed %d\n",
+                       dev_err(ph->dev, "No. of axis can't exceed %d\n",
                                s->num_axis);
                        break;
                }
@@ -405,18 +405,18 @@ static int scmi_sensor_axis_description(const struct 
scmi_handle *handle,
 
                desc_index += num_returned;
 
-               scmi_reset_rx_to_maxsz(handle, te);
+               ph->xops->reset_rx_to_maxsz(ph, te);
                /*
                 * check for both returned and remaining to avoid infinite
                 * loop due to buggy firmware
                 */
        } while (num_returned && num_remaining);
 
-       scmi_xfer_put(handle, te);
+       ph->xops->xfer_put(ph, te);
        return ret;
 }
 
-static int scmi_sensor_description_get(const struct scmi_handle *handle,
+static int scmi_sensor_description_get(const struct scmi_protocol_handle *ph,
                                       struct sensors_info *si)
 {
        int ret, cnt;
@@ -425,8 +425,8 @@ static int scmi_sensor_description_get(const struct 
scmi_handle *handle,
        struct scmi_xfer *t;
        struct scmi_msg_resp_sensor_description *buf;
 
-       ret = scmi_xfer_get_init(handle, SENSOR_DESCRIPTION_GET,
-                                SCMI_PROTOCOL_SENSOR, sizeof(__le32), 0, &t);
+       ret = ph->xops->xfer_get_init(ph, SENSOR_DESCRIPTION_GET,
+                                     sizeof(__le32), 0, &t);
        if (ret)
                return ret;
 
@@ -437,7 +437,8 @@ static int scmi_sensor_description_get(const struct 
scmi_handle *handle,
 
                /* Set the number of sensors to be skipped/already read */
                put_unaligned_le32(desc_index, t->tx.buf);
-               ret = scmi_do_xfer(handle, t);
+
+               ret = ph->xops->do_xfer(ph, t);
                if (ret)
                        break;
 
@@ -445,7 +446,7 @@ static int scmi_sensor_description_get(const struct 
scmi_handle *handle,
                num_remaining = le16_to_cpu(buf->num_remaining);
 
                if (desc_index + num_returned > si->num_sensors) {
-                       dev_err(handle->dev, "No. of sensors can't exceed %d",
+                       dev_err(ph->dev, "No. of sensors can't exceed %d",
                                si->num_sensors);
                        break;
                }
@@ -500,8 +501,8 @@ static int scmi_sensor_description_get(const struct 
scmi_handle *handle,
                                 * Since the command is optional, on error carry
                                 * on without any update interval.
                                 */
-                               if (scmi_sensor_update_intervals(handle, s))
-                                       dev_dbg(handle->dev,
+                               if (scmi_sensor_update_intervals(ph, s))
+                                       dev_dbg(ph->dev,
                                                "Update Intervals not available 
for sensor ID:%d\n",
                                                s->id);
                        }
@@ -535,7 +536,7 @@ static int scmi_sensor_description_get(const struct 
scmi_handle *handle,
                                }
                        }
                        if (s->num_axis > 0) {
-                               ret = scmi_sensor_axis_description(handle, s);
+                               ret = scmi_sensor_axis_description(ph, s);
                                if (ret)
                                        goto out;
                        }
@@ -545,7 +546,7 @@ static int scmi_sensor_description_get(const struct 
scmi_handle *handle,
 
                desc_index += num_returned;
 
-               scmi_reset_rx_to_maxsz(handle, t);
+               ph->xops->reset_rx_to_maxsz(ph, t);
                /*
                 * check for both returned and remaining to avoid infinite
                 * loop due to buggy firmware
@@ -553,12 +554,12 @@ static int scmi_sensor_description_get(const struct 
scmi_handle *handle,
        } while (num_returned && num_remaining);
 
 out:
-       scmi_xfer_put(handle, t);
+       ph->xops->xfer_put(ph, t);
        return ret;
 }
 
 static inline int
-scmi_sensor_request_notify(const struct scmi_handle *handle, u32 sensor_id,
+scmi_sensor_request_notify(const struct scmi_protocol_handle *ph, u32 
sensor_id,
                           u8 message_id, bool enable)
 {
        int ret;
@@ -566,8 +567,7 @@ scmi_sensor_request_notify(const struct scmi_handle 
*handle, u32 sensor_id,
        struct scmi_xfer *t;
        struct scmi_msg_sensor_request_notify *cfg;
 
-       ret = scmi_xfer_get_init(handle, message_id,
-                                SCMI_PROTOCOL_SENSOR, sizeof(*cfg), 0, &t);
+       ret = ph->xops->xfer_get_init(ph, message_id, sizeof(*cfg), 0, &t);
        if (ret)
                return ret;
 
@@ -575,40 +575,40 @@ scmi_sensor_request_notify(const struct scmi_handle 
*handle, u32 sensor_id,
        cfg->id = cpu_to_le32(sensor_id);
        cfg->event_control = cpu_to_le32(evt_cntl);
 
-       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_sensor_trip_point_notify(const struct scmi_handle *handle,
+static int scmi_sensor_trip_point_notify(const struct scmi_protocol_handle *ph,
                                         u32 sensor_id, bool enable)
 {
-       return scmi_sensor_request_notify(handle, sensor_id,
+       return scmi_sensor_request_notify(ph, sensor_id,
                                          SENSOR_TRIP_POINT_NOTIFY,
                                          enable);
 }
 
 static int
-scmi_sensor_continuous_update_notify(const struct scmi_handle *handle,
+scmi_sensor_continuous_update_notify(const struct scmi_protocol_handle *ph,
                                     u32 sensor_id, bool enable)
 {
-       return scmi_sensor_request_notify(handle, sensor_id,
+       return scmi_sensor_request_notify(ph, sensor_id,
                                          SENSOR_CONTINUOUS_UPDATE_NOTIFY,
                                          enable);
 }
 
 static int
-scmi_sensor_trip_point_config(const struct scmi_handle *handle, u32 sensor_id,
-                             u8 trip_id, u64 trip_value)
+scmi_sensor_trip_point_config(const struct scmi_protocol_handle *ph,
+                             u32 sensor_id, u8 trip_id, u64 trip_value)
 {
        int ret;
        u32 evt_cntl = SENSOR_TP_BOTH;
        struct scmi_xfer *t;
        struct scmi_msg_set_sensor_trip_point *trip;
 
-       ret = scmi_xfer_get_init(handle, SENSOR_TRIP_POINT_CONFIG,
-                                SCMI_PROTOCOL_SENSOR, sizeof(*trip), 0, &t);
+       ret = ph->xops->xfer_get_init(ph, SENSOR_TRIP_POINT_CONFIG,
+                                     sizeof(*trip), 0, &t);
        if (ret)
                return ret;
 
@@ -618,47 +618,66 @@ scmi_sensor_trip_point_config(const struct scmi_handle 
*handle, u32 sensor_id,
        trip->value_low = cpu_to_le32(trip_value & 0xffffffff);
        trip->value_high = cpu_to_le32(trip_value >> 32);
 
-       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_sensor_config_get(const struct scmi_handle *handle,
+static int
+__scmi_sensor_trip_point_config(const struct scmi_handle *handle,
+                               u32 sensor_id, u8 trip_id, u64 trip_value)
+{
+       const struct scmi_protocol_handle *ph =
+               scmi_map_protocol_handle(handle, SCMI_PROTOCOL_SENSOR);
+
+       return scmi_sensor_trip_point_config(ph, sensor_id, trip_id,
+                                            trip_value);
+}
+
+static int scmi_sensor_config_get(const struct scmi_protocol_handle *ph,
                                  u32 sensor_id, u32 *sensor_config)
 {
        int ret;
        struct scmi_xfer *t;
 
-       ret = scmi_xfer_get_init(handle, SENSOR_CONFIG_GET,
-                                SCMI_PROTOCOL_SENSOR, sizeof(__le32),
-                                sizeof(__le32), &t);
+       ret = ph->xops->xfer_get_init(ph, SENSOR_CONFIG_GET,
+                                     sizeof(__le32), sizeof(__le32), &t);
        if (ret)
                return ret;
 
        put_unaligned_le32(cpu_to_le32(sensor_id), t->tx.buf);
-       ret = scmi_do_xfer(handle, t);
+       ret = ph->xops->do_xfer(ph, t);
        if (!ret) {
-               struct sensors_info *si = handle->sensor_priv;
+               struct sensors_info *si = ph->get_priv(ph);
                struct scmi_sensor_info *s = si->sensors + sensor_id;
 
                *sensor_config = get_unaligned_le64(t->rx.buf);
                s->sensor_config = *sensor_config;
        }
 
-       scmi_xfer_put(handle, t);
+       ph->xops->xfer_put(ph, t);
        return ret;
 }
 
-static int scmi_sensor_config_set(const struct scmi_handle *handle,
+static int __scmi_sensor_config_get(const struct scmi_handle *handle,
+                                   u32 sensor_id, u32 *sensor_config)
+{
+       const struct scmi_protocol_handle *ph =
+               scmi_map_protocol_handle(handle, SCMI_PROTOCOL_SENSOR);
+
+       return scmi_sensor_config_get(ph, sensor_id, sensor_config);
+}
+
+static int scmi_sensor_config_set(const struct scmi_protocol_handle *ph,
                                  u32 sensor_id, u32 sensor_config)
 {
        int ret;
        struct scmi_xfer *t;
        struct scmi_msg_sensor_config_set *msg;
 
-       ret = scmi_xfer_get_init(handle, SENSOR_CONFIG_SET,
-                                SCMI_PROTOCOL_SENSOR, sizeof(*msg), 0, &t);
+       ret = ph->xops->xfer_get_init(ph, SENSOR_CONFIG_SET,
+                                     sizeof(*msg), 0, &t);
        if (ret)
                return ret;
 
@@ -666,21 +685,30 @@ static int scmi_sensor_config_set(const struct 
scmi_handle *handle,
        msg->id = cpu_to_le32(sensor_id);
        msg->sensor_config = cpu_to_le32(sensor_config);
 
-       ret = scmi_do_xfer(handle, t);
+       ret = ph->xops->do_xfer(ph, t);
        if (!ret) {
-               struct sensors_info *si = handle->sensor_priv;
+               struct sensors_info *si = ph->get_priv(ph);
                struct scmi_sensor_info *s = si->sensors + sensor_id;
 
                s->sensor_config = sensor_config;
        }
 
-       scmi_xfer_put(handle, t);
+       ph->xops->xfer_put(ph, t);
        return ret;
 }
 
+static int __scmi_sensor_config_set(const struct scmi_handle *handle,
+                                   u32 sensor_id, u32 sensor_config)
+{
+       const struct scmi_protocol_handle *ph =
+               scmi_map_protocol_handle(handle, SCMI_PROTOCOL_SENSOR);
+
+       return scmi_sensor_config_set(ph, sensor_id, sensor_config);
+}
+
 /**
  * scmi_sensor_reading_get  - Read scalar sensor value
- * @handle: Platform handle
+ * @ph: Protocol handle
  * @sensor_id: Sensor ID
  * @value: The 64bit value sensor reading
  *
@@ -693,17 +721,17 @@ static int scmi_sensor_config_set(const struct 
scmi_handle *handle,
  *
  * Return: 0 on Success
  */
-static int scmi_sensor_reading_get(const struct scmi_handle *handle,
+static int scmi_sensor_reading_get(const struct scmi_protocol_handle *ph,
                                   u32 sensor_id, u64 *value)
 {
        int ret;
        struct scmi_xfer *t;
        struct scmi_msg_sensor_reading_get *sensor;
-       struct sensors_info *si = handle->sensor_priv;
+       struct sensors_info *si = ph->get_priv(ph);
        struct scmi_sensor_info *s = si->sensors + sensor_id;
 
-       ret = scmi_xfer_get_init(handle, SENSOR_READING_GET,
-                                SCMI_PROTOCOL_SENSOR, sizeof(*sensor), 0, &t);
+       ret = ph->xops->xfer_get_init(ph, SENSOR_READING_GET,
+                                     sizeof(*sensor), 0, &t);
        if (ret)
                return ret;
 
@@ -711,7 +739,7 @@ static int scmi_sensor_reading_get(const struct scmi_handle 
*handle,
        sensor->id = cpu_to_le32(sensor_id);
        if (s->async) {
                sensor->flags = cpu_to_le32(SENSOR_READ_ASYNC);
-               ret = scmi_do_xfer_with_response(handle, t);
+               ret = ph->xops->do_xfer_with_response(ph, t);
                if (!ret) {
                        struct scmi_resp_sensor_reading_complete *resp;
 
@@ -723,15 +751,24 @@ static int scmi_sensor_reading_get(const struct 
scmi_handle *handle,
                }
        } else {
                sensor->flags = cpu_to_le32(0);
-               ret = scmi_do_xfer(handle, t);
+               ret = ph->xops->do_xfer(ph, t);
                if (!ret)
                        *value = get_unaligned_le64(t->rx.buf);
        }
 
-       scmi_xfer_put(handle, t);
+       ph->xops->xfer_put(ph, t);
        return ret;
 }
 
+static int __scmi_sensor_reading_get(const struct scmi_handle *handle,
+                                    u32 sensor_id, u64 *value)
+{
+       const struct scmi_protocol_handle *ph =
+               scmi_map_protocol_handle(handle, SCMI_PROTOCOL_SENSOR);
+
+       return scmi_sensor_reading_get(ph, sensor_id, value);
+}
+
 static inline void
 scmi_parse_sensor_readings(struct scmi_sensor_reading *out,
                           const struct scmi_sensor_reading_resp *in)
@@ -742,7 +779,7 @@ scmi_parse_sensor_readings(struct scmi_sensor_reading *out,
 
 /**
  * scmi_sensor_reading_get_timestamped  - Read multiple-axis timestamped values
- * @handle: Platform handle
+ * @ph: Protocol handle
  * @sensor_id: Sensor ID
  * @count: The length of the provided @readings array
  * @readings: An array of elements each representing a timestamped per-axis
@@ -755,22 +792,22 @@ scmi_parse_sensor_readings(struct scmi_sensor_reading 
*out,
  * Return: 0 on Success
  */
 static int
-scmi_sensor_reading_get_timestamped(const struct scmi_handle *handle,
+scmi_sensor_reading_get_timestamped(const struct scmi_protocol_handle *ph,
                                    u32 sensor_id, u8 count,
                                    struct scmi_sensor_reading *readings)
 {
        int ret;
        struct scmi_xfer *t;
        struct scmi_msg_sensor_reading_get *sensor;
-       struct sensors_info *si = handle->sensor_priv;
+       struct sensors_info *si = ph->get_priv(ph);
        struct scmi_sensor_info *s = si->sensors + sensor_id;
 
        if (!count || !readings ||
            (!s->num_axis && count > 1) || (s->num_axis && count > s->num_axis))
                return -EINVAL;
 
-       ret = scmi_xfer_get_init(handle, SENSOR_READING_GET,
-                                SCMI_PROTOCOL_SENSOR, sizeof(*sensor), 0, &t);
+       ret = ph->xops->xfer_get_init(ph, SENSOR_READING_GET,
+                                     sizeof(*sensor), 0, &t);
        if (ret)
                return ret;
 
@@ -778,7 +815,7 @@ scmi_sensor_reading_get_timestamped(const struct 
scmi_handle *handle,
        sensor->id = cpu_to_le32(sensor_id);
        if (s->async) {
                sensor->flags = cpu_to_le32(SENSOR_READ_ASYNC);
-               ret = scmi_do_xfer_with_response(handle, t);
+               ret = ph->xops->do_xfer_with_response(ph, t);
                if (!ret) {
                        int i;
                        struct scmi_resp_sensor_reading_complete_v3 *resp;
@@ -794,7 +831,7 @@ scmi_sensor_reading_get_timestamped(const struct 
scmi_handle *handle,
                }
        } else {
                sensor->flags = cpu_to_le32(0);
-               ret = scmi_do_xfer(handle, t);
+               ret = ph->xops->do_xfer(ph, t);
                if (!ret) {
                        int i;
                        struct scmi_sensor_reading_resp *resp_readings;
@@ -806,26 +843,65 @@ scmi_sensor_reading_get_timestamped(const struct 
scmi_handle *handle,
                }
        }
 
-       scmi_xfer_put(handle, t);
+       ph->xops->xfer_put(ph, t);
        return ret;
 }
 
+static int
+__scmi_sensor_reading_get_timestamped(const struct scmi_handle *handle,
+                                     u32 sensor_id, u8 count,
+                                     struct scmi_sensor_reading *readings)
+{
+       const struct scmi_protocol_handle *ph =
+               scmi_map_protocol_handle(handle, SCMI_PROTOCOL_SENSOR);
+
+       return scmi_sensor_reading_get_timestamped(ph, sensor_id, count,
+                                                  readings);
+}
+
 static const struct scmi_sensor_info *
-scmi_sensor_info_get(const struct scmi_handle *handle, u32 sensor_id)
+scmi_sensor_info_get(const struct scmi_protocol_handle *ph, u32 sensor_id)
 {
-       struct sensors_info *si = handle->sensor_priv;
+       struct sensors_info *si = ph->get_priv(ph);
 
        return si->sensors + sensor_id;
 }
 
-static int scmi_sensor_count_get(const struct scmi_handle *handle)
+static const struct scmi_sensor_info *
+__scmi_sensor_info_get(const struct scmi_handle *handle, u32 sensor_id)
 {
-       struct sensors_info *si = handle->sensor_priv;
+       const struct scmi_protocol_handle *ph =
+               scmi_map_protocol_handle(handle, SCMI_PROTOCOL_SENSOR);
+
+       return scmi_sensor_info_get(ph, sensor_id);
+}
+
+static int scmi_sensor_count_get(const struct scmi_protocol_handle *ph)
+{
+       struct sensors_info *si = ph->get_priv(ph);
 
        return si->num_sensors;
 }
 
+static int __scmi_sensor_count_get(const struct scmi_handle *handle)
+{
+       const struct scmi_protocol_handle *ph =
+               scmi_map_protocol_handle(handle, SCMI_PROTOCOL_SENSOR);
+
+       return scmi_sensor_count_get(ph);
+}
+
 static const struct scmi_sensor_ops sensor_ops = {
+       .count_get = __scmi_sensor_count_get,
+       .info_get = __scmi_sensor_info_get,
+       .trip_point_config = __scmi_sensor_trip_point_config,
+       .reading_get = __scmi_sensor_reading_get,
+       .reading_get_timestamped = __scmi_sensor_reading_get_timestamped,
+       .config_get = __scmi_sensor_config_get,
+       .config_set = __scmi_sensor_config_set,
+};
+
+static const struct scmi_sensor_proto_ops sensor_proto_ops = {
        .count_get = scmi_sensor_count_get,
        .info_get = scmi_sensor_info_get,
        .trip_point_config = scmi_sensor_trip_point_config,
@@ -835,18 +911,17 @@ static const struct scmi_sensor_ops sensor_ops = {
        .config_set = scmi_sensor_config_set,
 };
 
-static int scmi_sensor_set_notify_enabled(const void *handle,
+static int scmi_sensor_set_notify_enabled(const void *ph,
                                          u8 evt_id, u32 src_id, bool enable)
 {
        int ret;
 
        switch (evt_id) {
        case SCMI_EVENT_SENSOR_TRIP_POINT_EVENT:
-               ret = scmi_sensor_trip_point_notify(handle, src_id, enable);
+               ret = scmi_sensor_trip_point_notify(ph, src_id, enable);
                break;
        case SCMI_EVENT_SENSOR_UPDATE:
-               ret = scmi_sensor_continuous_update_notify(handle, src_id,
-                                                          enable);
+               ret = scmi_sensor_continuous_update_notify(ph, src_id, enable);
                break;
        default:
                ret = -EINVAL;
@@ -860,7 +935,7 @@ static int scmi_sensor_set_notify_enabled(const void 
*handle,
        return ret;
 }
 
-static void *scmi_sensor_fill_custom_report(const void *handle,
+static void *scmi_sensor_fill_custom_report(const void *ph,
                                            u8 evt_id, ktime_t timestamp,
                                            const void *payld, size_t payld_sz,
                                            void *report, u32 *src_id)
@@ -891,7 +966,7 @@ static void *scmi_sensor_fill_custom_report(const void 
*handle,
                const struct scmi_sensor_update_notify_payld *p = payld;
                struct scmi_sensor_update_report *r = report;
                struct sensors_info *sinfo =
-                       ((const struct scmi_handle *)(handle))->sensor_priv;
+                       ((const struct scmi_protocol_handle *)ph)->get_priv(ph);
 
                /* payld_sz is variable for this event */
                r->sensor_id = le32_to_cpu(p->sensor_id);
@@ -921,10 +996,10 @@ static void *scmi_sensor_fill_custom_report(const void 
*handle,
        return rep;
 }
 
-static int scmi_sensor_get_num_sources(const void *handle)
+static int scmi_sensor_get_num_sources(const void *ph)
 {
        struct sensors_info *si =
-               ((const struct scmi_handle *)(handle))->sensor_priv;
+               ((const struct scmi_protocol_handle *)ph)->get_priv(ph);
 
        return si->num_sensors;
 }
@@ -960,44 +1035,46 @@ static const struct scmi_protocol_events 
sensor_protocol_events = {
        .num_events = ARRAY_SIZE(sensor_events),
 };
 
-static int scmi_sensors_protocol_init(struct scmi_handle *handle)
+static int scmi_sensors_protocol_init(const struct scmi_protocol_handle *ph)
 {
        u32 version;
        int ret;
        struct sensors_info *sinfo;
+       struct scmi_handle *handle;
 
-       scmi_version_get(handle, SCMI_PROTOCOL_SENSOR, &version);
+       ph->xops->version_get(ph, &version);
 
-       dev_dbg(handle->dev, "Sensor Version %d.%d\n",
+       dev_dbg(ph->dev, "Sensor Version %d.%d\n",
                PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version));
 
-       sinfo = devm_kzalloc(handle->dev, sizeof(*sinfo), GFP_KERNEL);
+       sinfo = devm_kzalloc(ph->dev, sizeof(*sinfo), GFP_KERNEL);
        if (!sinfo)
                return -ENOMEM;
        sinfo->version = version;
 
-       ret = scmi_sensor_attributes_get(handle, sinfo);
+       ret = scmi_sensor_attributes_get(ph, sinfo);
        if (ret)
                return ret;
-       sinfo->sensors = devm_kcalloc(handle->dev, sinfo->num_sensors,
+       sinfo->sensors = devm_kcalloc(ph->dev, sinfo->num_sensors,
                                      sizeof(*sinfo->sensors), GFP_KERNEL);
        if (!sinfo->sensors)
                return -ENOMEM;
 
-       ret = scmi_sensor_description_get(handle, sinfo);
+       ret = scmi_sensor_description_get(ph, sinfo);
        if (ret)
                return ret;
 
-       handle->sensor_priv = sinfo;
+       /* Transient code for legacy ops interface */
+       handle = scmi_map_scmi_handle(ph);
        handle->sensor_ops = &sensor_ops;
 
-       return 0;
+       return ph->set_priv(ph, sinfo);
 }
 
 static const struct scmi_protocol scmi_sensors = {
        .id = SCMI_PROTOCOL_SENSOR,
-       .init = &scmi_sensors_protocol_init,
-       .ops = &sensor_ops,
+       .init_instance = &scmi_sensors_protocol_init,
+       .ops = &sensor_proto_ops,
        .events = &sensor_protocol_events,
 };
 
diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h
index e4cd89661d53..512e2d2ef46d 100644
--- a/include/linux/scmi_protocol.h
+++ b/include/linux/scmi_protocol.h
@@ -431,7 +431,7 @@ enum scmi_sensor_class {
 };
 
 /**
- * struct scmi_sensor_ops - represents the various operations provided
+ * struct scmi_sensor_proto_ops - represents the various operations provided
  *     by SCMI Sensor Protocol
  *
  * @count_get: get the count of sensors provided by SCMI
@@ -446,6 +446,23 @@ enum scmi_sensor_class {
  * @config_get: Get sensor current configuration
  * @config_set: Set sensor current configuration
  */
+struct scmi_sensor_proto_ops {
+       int (*count_get)(const struct scmi_protocol_handle *ph);
+       const struct scmi_sensor_info *(*info_get)
+               (const struct scmi_protocol_handle *ph, u32 sensor_id);
+       int (*trip_point_config)(const struct scmi_protocol_handle *ph,
+                                u32 sensor_id, u8 trip_id, u64 trip_value);
+       int (*reading_get)(const struct scmi_protocol_handle *ph, u32 sensor_id,
+                          u64 *value);
+       int (*reading_get_timestamped)(const struct scmi_protocol_handle *ph,
+                                      u32 sensor_id, u8 count,
+                                      struct scmi_sensor_reading *readings);
+       int (*config_get)(const struct scmi_protocol_handle *ph,
+                         u32 sensor_id, u32 *sensor_config);
+       int (*config_set)(const struct scmi_protocol_handle *ph,
+                         u32 sensor_id, u32 sensor_config);
+};
+
 struct scmi_sensor_ops {
        int (*count_get)(const struct scmi_handle *handle);
        const struct scmi_sensor_info *(*info_get)
@@ -608,8 +625,6 @@ struct scmi_notify_ops {
  *                    operations and a dedicated protocol handler
  * @devm_put_protocol: devres managed method to release a protocol
  * @notify_ops: pointer to set of notifications related operations
- * @sensor_priv: pointer to private data structure specific to sensors
- *     protocol(for internal use only)
  * @voltage_priv: pointer to private data structure specific to voltage
  *     protocol(for internal use only)
  * @notify_priv: pointer to private data structure specific to notifications
@@ -628,7 +643,6 @@ struct scmi_handle {
 
        const struct scmi_notify_ops *notify_ops;
        /* for protocol internal use */
-       void *sensor_priv;
        void *voltage_priv;
        void *notify_priv;
        void *system_priv;
-- 
2.17.1

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