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soundwire: generic_allocation: fix confusion between group and packing

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The existing code makes no sense, we multiply a channel number by
zero (SDW_BLK_GRP_CNT_1), and the result is used to configure the
block packing mode. Sampling grouping and channel packing are two
separate concepts in SoundWire.

In addition, the bandwidth allocation allocates a vertical slice for
each stream, which makes the use of the PER_CHANNEL packing mode
irrelevant.

Let's use the proper definition for block packing mode (PER_PORT).

This change has no functional impact though since the net result is
the same configuration of the DPN_BlockCtrl3 register, when
implemented.

Reported-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20210323050701.23760-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2021-03-23 13:07:01 +08:00 committed by Vinod Koul
parent 886ce97a36
commit 8f29bb8358
1 changed files with 3 additions and 4 deletions
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7
drivers/soundwire/generic_bandwidth_allocation.c
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@ -62,7 +62,7 @@ static void sdw_compute_slave_ports(struct sdw_master_runtime *m_rt,
sample_int, port_bo, port_bo >> 8,
t_data->hstart,
t_data->hstop,
(SDW_BLK_GRP_CNT_1 * ch), 0x0);
SDW_BLK_PKG_PER_PORT, 0x0);
sdw_fill_port_params(&p_rt->port_params,
p_rt->num, bps,
@ -95,7 +95,7 @@ static void sdw_compute_master_ports(struct sdw_master_runtime *m_rt,
struct sdw_bus *bus = m_rt->bus;
struct sdw_bus_params *b_params = &bus->params;
int sample_int, hstart = 0;
unsigned int rate, bps, ch, no_ch;
unsigned int rate, bps, ch;
rate = m_rt->stream->params.rate;
bps = m_rt->stream->params.bps;
@ -110,12 +110,11 @@ static void sdw_compute_master_ports(struct sdw_master_runtime *m_rt,
t_data.hstart = hstart;
list_for_each_entry(p_rt, &m_rt->port_list, port_node) {
no_ch = sdw_ch_mask_to_ch(p_rt->ch_mask);
sdw_fill_xport_params(&p_rt->transport_params, p_rt->num,
false, SDW_BLK_GRP_CNT_1, sample_int,
port_bo, port_bo >> 8, hstart, hstop,
(SDW_BLK_GRP_CNT_1 * no_ch), 0x0);
SDW_BLK_PKG_PER_PORT, 0x0);
sdw_fill_port_params(&p_rt->port_params,
p_rt->num, bps,