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iio/scmi: Port driver to the new scmi_sensor_proto_ops interface
Port the scmi iio driver to the new SCMI sensor interface based on protocol handles and common devm_get_ops(). Link: https://lore.kernel.org/r/20210316124903.35011-26-cristian.marussi@arm.com Link: https://lore.kernel.org/r/20210330134711.1962-1-cristian.marussi@arm.com Acked-by: Jyoti Bhayana <jbhayana@google.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
parent
987bae41e9
commit
25cbdd4609
1 changed files with 50 additions and 50 deletions
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@ -22,7 +22,8 @@
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#define SCMI_IIO_NUM_OF_AXIS 3
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struct scmi_iio_priv {
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struct scmi_handle *handle;
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const struct scmi_sensor_proto_ops *sensor_ops;
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struct scmi_protocol_handle *ph;
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const struct scmi_sensor_info *sensor_info;
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struct iio_dev *indio_dev;
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/* adding one additional channel for timestamp */
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@ -82,7 +83,6 @@ static int scmi_iio_sensor_update_cb(struct notifier_block *nb,
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static int scmi_iio_buffer_preenable(struct iio_dev *iio_dev)
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{
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struct scmi_iio_priv *sensor = iio_priv(iio_dev);
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u32 sensor_id = sensor->sensor_info->id;
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u32 sensor_config = 0;
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int err;
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@ -92,27 +92,12 @@ static int scmi_iio_buffer_preenable(struct iio_dev *iio_dev)
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sensor_config |= FIELD_PREP(SCMI_SENS_CFG_SENSOR_ENABLED_MASK,
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SCMI_SENS_CFG_SENSOR_ENABLE);
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err = sensor->handle->notify_ops->register_event_notifier(sensor->handle,
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SCMI_PROTOCOL_SENSOR, SCMI_EVENT_SENSOR_UPDATE,
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&sensor_id, &sensor->sensor_update_nb);
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if (err) {
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dev_err(&iio_dev->dev,
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"Error in registering sensor update notifier for sensor %s err %d",
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sensor->sensor_info->name, err);
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return err;
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}
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err = sensor->handle->sensor_ops->config_set(sensor->handle,
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sensor->sensor_info->id, sensor_config);
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if (err) {
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sensor->handle->notify_ops->unregister_event_notifier(sensor->handle,
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SCMI_PROTOCOL_SENSOR,
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SCMI_EVENT_SENSOR_UPDATE, &sensor_id,
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&sensor->sensor_update_nb);
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err = sensor->sensor_ops->config_set(sensor->ph,
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sensor->sensor_info->id,
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sensor_config);
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if (err)
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dev_err(&iio_dev->dev, "Error in enabling sensor %s err %d",
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sensor->sensor_info->name, err);
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}
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return err;
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}
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@ -120,25 +105,14 @@ static int scmi_iio_buffer_preenable(struct iio_dev *iio_dev)
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static int scmi_iio_buffer_postdisable(struct iio_dev *iio_dev)
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{
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struct scmi_iio_priv *sensor = iio_priv(iio_dev);
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u32 sensor_id = sensor->sensor_info->id;
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u32 sensor_config = 0;
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int err;
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sensor_config |= FIELD_PREP(SCMI_SENS_CFG_SENSOR_ENABLED_MASK,
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SCMI_SENS_CFG_SENSOR_DISABLE);
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err = sensor->handle->notify_ops->unregister_event_notifier(sensor->handle,
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SCMI_PROTOCOL_SENSOR, SCMI_EVENT_SENSOR_UPDATE,
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&sensor_id, &sensor->sensor_update_nb);
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if (err) {
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dev_err(&iio_dev->dev,
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"Error in unregistering sensor update notifier for sensor %s err %d",
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sensor->sensor_info->name, err);
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return err;
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}
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err = sensor->handle->sensor_ops->config_set(sensor->handle, sensor_id,
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sensor_config);
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err = sensor->sensor_ops->config_set(sensor->ph,
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sensor->sensor_info->id,
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sensor_config);
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if (err) {
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dev_err(&iio_dev->dev,
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"Error in disabling sensor %s with err %d",
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@ -161,8 +135,9 @@ static int scmi_iio_set_odr_val(struct iio_dev *iio_dev, int val, int val2)
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u32 sensor_config;
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char buf[32];
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int err = sensor->handle->sensor_ops->config_get(sensor->handle,
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sensor->sensor_info->id, &sensor_config);
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int err = sensor->sensor_ops->config_get(sensor->ph,
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sensor->sensor_info->id,
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&sensor_config);
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if (err) {
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dev_err(&iio_dev->dev,
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"Error in getting sensor config for sensor %s err %d",
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@ -208,8 +183,9 @@ static int scmi_iio_set_odr_val(struct iio_dev *iio_dev, int val, int val2)
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sensor_config |=
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FIELD_PREP(SCMI_SENS_CFG_ROUND_MASK, SCMI_SENS_CFG_ROUND_AUTO);
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err = sensor->handle->sensor_ops->config_set(sensor->handle,
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sensor->sensor_info->id, sensor_config);
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err = sensor->sensor_ops->config_set(sensor->ph,
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sensor->sensor_info->id,
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sensor_config);
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if (err)
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dev_err(&iio_dev->dev,
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"Error in setting sensor update interval for sensor %s value %u err %d",
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@ -274,8 +250,9 @@ static int scmi_iio_get_odr_val(struct iio_dev *iio_dev, int *val, int *val2)
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u32 sensor_config;
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int mult;
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int err = sensor->handle->sensor_ops->config_get(sensor->handle,
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sensor->sensor_info->id, &sensor_config);
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int err = sensor->sensor_ops->config_get(sensor->ph,
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sensor->sensor_info->id,
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&sensor_config);
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if (err) {
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dev_err(&iio_dev->dev,
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"Error in getting sensor config for sensor %s err %d",
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@ -542,15 +519,19 @@ static int scmi_iio_buffers_setup(struct iio_dev *scmi_iiodev)
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return 0;
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}
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static struct iio_dev *scmi_alloc_iiodev(struct device *dev,
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struct scmi_handle *handle,
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const struct scmi_sensor_info *sensor_info)
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static struct iio_dev *
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scmi_alloc_iiodev(struct scmi_device *sdev,
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const struct scmi_sensor_proto_ops *ops,
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struct scmi_protocol_handle *ph,
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const struct scmi_sensor_info *sensor_info)
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{
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struct iio_chan_spec *iio_channels;
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struct scmi_iio_priv *sensor;
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enum iio_modifier modifier;
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enum iio_chan_type type;
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struct iio_dev *iiodev;
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struct device *dev = &sdev->dev;
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const struct scmi_handle *handle = sdev->handle;
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int i, ret;
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iiodev = devm_iio_device_alloc(dev, sizeof(*sensor));
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@ -560,7 +541,8 @@ static struct iio_dev *scmi_alloc_iiodev(struct device *dev,
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iiodev->modes = INDIO_DIRECT_MODE;
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iiodev->dev.parent = dev;
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sensor = iio_priv(iiodev);
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sensor->handle = handle;
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sensor->sensor_ops = ops;
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sensor->ph = ph;
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sensor->sensor_info = sensor_info;
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sensor->sensor_update_nb.notifier_call = scmi_iio_sensor_update_cb;
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sensor->indio_dev = iiodev;
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@ -595,6 +577,17 @@ static struct iio_dev *scmi_alloc_iiodev(struct device *dev,
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sensor_info->axis[i].id);
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}
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ret = handle->notify_ops->devm_event_notifier_register(sdev,
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SCMI_PROTOCOL_SENSOR, SCMI_EVENT_SENSOR_UPDATE,
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&sensor->sensor_info->id,
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&sensor->sensor_update_nb);
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if (ret) {
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dev_err(&iiodev->dev,
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"Error in registering sensor update notifier for sensor %s err %d",
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sensor->sensor_info->name, ret);
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return ERR_PTR(ret);
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}
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scmi_iio_set_timestamp_channel(&iio_channels[i], i);
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iiodev->channels = iio_channels;
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return iiodev;
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@ -604,24 +597,30 @@ static int scmi_iio_dev_probe(struct scmi_device *sdev)
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{
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const struct scmi_sensor_info *sensor_info;
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struct scmi_handle *handle = sdev->handle;
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const struct scmi_sensor_proto_ops *sensor_ops;
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struct scmi_protocol_handle *ph;
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struct device *dev = &sdev->dev;
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struct iio_dev *scmi_iio_dev;
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u16 nr_sensors;
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int err = -ENODEV, i;
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if (!handle || !handle->sensor_ops) {
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if (!handle)
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return -ENODEV;
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sensor_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_SENSOR, &ph);
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if (IS_ERR(sensor_ops)) {
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dev_err(dev, "SCMI device has no sensor interface\n");
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return -EINVAL;
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return PTR_ERR(sensor_ops);
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}
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nr_sensors = handle->sensor_ops->count_get(handle);
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nr_sensors = sensor_ops->count_get(ph);
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if (!nr_sensors) {
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dev_dbg(dev, "0 sensors found via SCMI bus\n");
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return -ENODEV;
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}
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for (i = 0; i < nr_sensors; i++) {
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sensor_info = handle->sensor_ops->info_get(handle, i);
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sensor_info = sensor_ops->info_get(ph, i);
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if (!sensor_info) {
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dev_err(dev, "SCMI sensor %d has missing info\n", i);
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return -EINVAL;
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@ -636,7 +635,8 @@ static int scmi_iio_dev_probe(struct scmi_device *sdev)
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sensor_info->axis[0].type != RADIANS_SEC)
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continue;
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scmi_iio_dev = scmi_alloc_iiodev(dev, handle, sensor_info);
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scmi_iio_dev = scmi_alloc_iiodev(sdev, sensor_ops, ph,
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sensor_info);
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if (IS_ERR(scmi_iio_dev)) {
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dev_err(dev,
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"failed to allocate IIO device for sensor %s: %ld\n",
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