diff options
Diffstat (limited to 'drivers/soundwire/qcom.c')
| -rw-r--r-- | drivers/soundwire/qcom.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index fb70afe64fcc..ce5cf3ecceb5 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -905,6 +905,18 @@ static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl) return 0; } +static int qcom_swrm_read_prop(struct sdw_bus *bus) +{ + struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus); + + if (ctrl->version >= SWRM_VERSION_2_0_0) { + bus->multi_link = true; + bus->hw_sync_min_links = 3; + } + + return 0; +} + static enum sdw_command_response qcom_swrm_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg) { @@ -1056,6 +1068,7 @@ static const struct sdw_master_port_ops qcom_swrm_port_ops = { }; static const struct sdw_master_ops qcom_swrm_ops = { + .read_prop = qcom_swrm_read_prop, .xfer_msg = qcom_swrm_xfer_msg, .pre_bank_switch = qcom_swrm_pre_bank_switch, }; @@ -1173,6 +1186,15 @@ static int qcom_swrm_stream_alloc_ports(struct qcom_swrm_ctrl *ctrl, mutex_lock(&ctrl->port_lock); list_for_each_entry(m_rt, &stream->master_list, stream_node) { + /* + * For streams with multiple masters: + * Allocate ports only for devices connected to this master. + * Such devices will have ports allocated by their own master + * and its qcom_swrm_stream_alloc_ports() call. + */ + if (ctrl->bus.id != m_rt->bus->id) + continue; + if (m_rt->direction == SDW_DATA_DIR_RX) { maxport = ctrl->num_dout_ports; port_mask = &ctrl->dout_port_mask; |