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soundwire: stream: special-case the bus compute_params() routine

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For BPT support, we want to allocate the entire audio payload and
bypass the allocation based on PCM/PDM parameters.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Tested-by: shumingf@realtek.com
Link: https://lore.kernel.org/r/20250227140615.8147-6-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart
2025-02-27 22:06:04 +08:00
committed by Vinod Koul
parent dc90bbefa7
commit 00f57195f1
1 changed files with 48 additions and 0 deletions
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48
drivers/soundwire/generic_bandwidth_allocation.c
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@@ -86,6 +86,49 @@ void sdw_compute_slave_ports(struct sdw_master_runtime *m_rt,
}
EXPORT_SYMBOL(sdw_compute_slave_ports);
static void sdw_compute_dp0_slave_ports(struct sdw_master_runtime *m_rt)
{
struct sdw_bus *bus = m_rt->bus;
struct sdw_slave_runtime *s_rt;
struct sdw_port_runtime *p_rt;
list_for_each_entry(s_rt, &m_rt->slave_rt_list, m_rt_node) {
list_for_each_entry(p_rt, &s_rt->port_list, port_node) {
sdw_fill_xport_params(&p_rt->transport_params, p_rt->num, false,
SDW_BLK_GRP_CNT_1, bus->params.col, 0, 0, 1,
bus->params.col - 1, SDW_BLK_PKG_PER_PORT, 0x0);
sdw_fill_port_params(&p_rt->port_params, p_rt->num, bus->params.col - 1,
SDW_PORT_FLOW_MODE_ISOCH, SDW_PORT_DATA_MODE_NORMAL);
}
}
}
static void sdw_compute_dp0_master_ports(struct sdw_master_runtime *m_rt)
{
struct sdw_port_runtime *p_rt;
struct sdw_bus *bus = m_rt->bus;
list_for_each_entry(p_rt, &m_rt->port_list, port_node) {
sdw_fill_xport_params(&p_rt->transport_params, p_rt->num, false,
SDW_BLK_GRP_CNT_1, bus->params.col, 0, 0, 1,
bus->params.col - 1, SDW_BLK_PKG_PER_PORT, 0x0);
sdw_fill_port_params(&p_rt->port_params, p_rt->num, bus->params.col - 1,
SDW_PORT_FLOW_MODE_ISOCH, SDW_PORT_DATA_MODE_NORMAL);
}
}
static void sdw_compute_dp0_port_params(struct sdw_bus *bus)
{
struct sdw_master_runtime *m_rt;
list_for_each_entry(m_rt, &bus->m_rt_list, bus_node) {
sdw_compute_dp0_master_ports(m_rt);
sdw_compute_dp0_slave_ports(m_rt);
}
}
static void sdw_compute_master_ports(struct sdw_master_runtime *m_rt,
struct sdw_group_params *params,
int *port_bo, int hstop)
@@ -618,6 +661,11 @@ int sdw_compute_params(struct sdw_bus *bus, struct sdw_stream_runtime *stream)
if (ret < 0)
return ret;
if (stream->type == SDW_STREAM_BPT) {
sdw_compute_dp0_port_params(bus);
return 0;
}
/* Compute transport and port params */
ret = sdw_compute_port_params(bus, stream);
if (ret < 0) {