From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
While the hardware supports PDM streams, this capability has never
been tested or enabled on any product, so this is dead-code. Let's
remove all this.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Reviewed-by: Rander Wang <rander.wang@xxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
drivers/soundwire/cadence_master.c | 36 +--------
drivers/soundwire/cadence_master.h | 12 +--
drivers/soundwire/intel.c | 123 +++++++----------------------
3 files changed, 31 insertions(+), 140 deletions(-)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index 4fcc3ba93004..558390af44b6 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -1178,9 +1178,6 @@ int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
cdns->pcm.num_bd = config.pcm_bd;
cdns->pcm.num_in = config.pcm_in;
cdns->pcm.num_out = config.pcm_out;
- cdns->pdm.num_bd = config.pdm_bd;
- cdns->pdm.num_in = config.pdm_in;
- cdns->pdm.num_out = config.pdm_out;
/* Allocate PDIs for PCMs */
stream = &cdns->pcm;
@@ -1211,32 +1208,6 @@ int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
stream->num_pdi = stream->num_bd + stream->num_in + stream->num_out;
cdns->num_ports = stream->num_pdi;
- /* Allocate PDIs for PDMs */
- stream = &cdns->pdm;
- ret = cdns_allocate_pdi(cdns, &stream->bd,
- stream->num_bd, offset);
- if (ret)
- return ret;
-
- offset += stream->num_bd;
-
- ret = cdns_allocate_pdi(cdns, &stream->in,
- stream->num_in, offset);
- if (ret)
- return ret;
-
- offset += stream->num_in;
-
- ret = cdns_allocate_pdi(cdns, &stream->out,
- stream->num_out, offset);
-
- if (ret)
- return ret;
-
- /* Update total number of PDM PDIs */
- stream->num_pdi = stream->num_bd + stream->num_in + stream->num_out;
- cdns->num_ports += stream->num_pdi;
-
return 0;
}
EXPORT_SYMBOL(sdw_cdns_pdi_init);
@@ -1681,7 +1652,7 @@ int sdw_cdns_probe(struct sdw_cdns *cdns)
EXPORT_SYMBOL(sdw_cdns_probe);
int cdns_set_sdw_stream(struct snd_soc_dai *dai,
- void *stream, bool pcm, int direction)
+ void *stream, int direction)
{
struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
struct sdw_cdns_dma_data *dma;
@@ -1705,10 +1676,7 @@ int cdns_set_sdw_stream(struct snd_soc_dai *dai,
if (!dma)
return -ENOMEM;
- if (pcm)
- dma->stream_type = SDW_STREAM_PCM;
- else
- dma->stream_type = SDW_STREAM_PDM;
+ dma->stream_type = SDW_STREAM_PCM;
dma->bus = &cdns->bus;
dma->link_id = cdns->instance;
diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h
index aa4b9b0eb2a8..595d72c15d97 100644
--- a/drivers/soundwire/cadence_master.h
+++ b/drivers/soundwire/cadence_master.h
@@ -17,7 +17,7 @@
* @h_ch_num: high channel for PDI
* @ch_count: total channel count for PDI
* @dir: data direction
- * @type: stream type, PDM or PCM
+ * @type: stream type, (only PCM supported)
*/
struct sdw_cdns_pdi {
int num;
@@ -62,17 +62,11 @@ struct sdw_cdns_streams {
* @pcm_bd: number of bidirectional PCM streams supported
* @pcm_in: number of input PCM streams supported
* @pcm_out: number of output PCM streams supported
- * @pdm_bd: number of bidirectional PDM streams supported
- * @pdm_in: number of input PDM streams supported
- * @pdm_out: number of output PDM streams supported
*/
struct sdw_cdns_stream_config {
unsigned int pcm_bd;
unsigned int pcm_in;
unsigned int pcm_out;
- unsigned int pdm_bd;
- unsigned int pdm_in;
- unsigned int pdm_out;
};
/**
@@ -111,7 +105,6 @@ struct sdw_cdns_dma_data {
* @ports: Data ports
* @num_ports: Total number of data ports
* @pcm: PCM streams
- * @pdm: PDM streams
* @registers: Cadence registers
* @link_up: Link status
* @msg_count: Messages sent on bus
@@ -129,7 +122,6 @@ struct sdw_cdns {
int num_ports;
struct sdw_cdns_streams pcm;
- struct sdw_cdns_streams pdm;
int pdi_loopback_source;
int pdi_loopback_target;
@@ -188,7 +180,7 @@ cdns_xfer_msg_defer(struct sdw_bus *bus,
int cdns_bus_conf(struct sdw_bus *bus, struct sdw_bus_params *params);
int cdns_set_sdw_stream(struct snd_soc_dai *dai,
- void *stream, bool pcm, int direction);
+ void *stream, int direction);
void sdw_cdns_check_self_clearing_bits(struct sdw_cdns *cdns, const char *string,
bool initial_delay, int reset_iterations);
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 45ea55a7d0c8..79ba0e3f6dac 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -564,7 +564,7 @@ static void intel_pdi_init(struct sdw_intel *sdw,
{
void __iomem *shim = sdw->link_res->shim;
unsigned int link_id = sdw->instance;
- int pcm_cap, pdm_cap;
+ int pcm_cap;
/* PCM Stream Capability */
pcm_cap = intel_readw(shim, SDW_SHIM_PCMSCAP(link_id));
@@ -575,41 +575,25 @@ static void intel_pdi_init(struct sdw_intel *sdw,
dev_dbg(sdw->cdns.dev, "PCM cap bd:%d in:%d out:%d\n",
config->pcm_bd, config->pcm_in, config->pcm_out);
-
- /* PDM Stream Capability */
- pdm_cap = intel_readw(shim, SDW_SHIM_PDMSCAP(link_id));
-
- config->pdm_bd = FIELD_GET(SDW_SHIM_PDMSCAP_BSS, pdm_cap);
- config->pdm_in = FIELD_GET(SDW_SHIM_PDMSCAP_ISS, pdm_cap);
- config->pdm_out = FIELD_GET(SDW_SHIM_PDMSCAP_OSS, pdm_cap);
-
- dev_dbg(sdw->cdns.dev, "PDM cap bd:%d in:%d out:%d\n",
- config->pdm_bd, config->pdm_in, config->pdm_out);
}
static int
-intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num, bool pcm)
+intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num)
{
void __iomem *shim = sdw->link_res->shim;
unsigned int link_id = sdw->instance;
int count;
- if (pcm) {
- count = intel_readw(shim, SDW_SHIM_PCMSYCHC(link_id, pdi_num));
+ count = intel_readw(shim, SDW_SHIM_PCMSYCHC(link_id, pdi_num));
- /*
- * WORKAROUND: on all existing Intel controllers, pdi
- * number 2 reports channel count as 1 even though it
- * supports 8 channels. Performing hardcoding for pdi
- * number 2.
- */
- if (pdi_num == 2)
- count = 7;
-
- } else {
- count = intel_readw(shim, SDW_SHIM_PDMSCAP(link_id));
- count = FIELD_GET(SDW_SHIM_PDMSCAP_CPSS, count);
- }
+ /*
+ * WORKAROUND: on all existing Intel controllers, pdi
+ * number 2 reports channel count as 1 even though it
+ * supports 8 channels. Performing hardcoding for pdi
+ * number 2.
+ */
+ if (pdi_num == 2)
+ count = 7;
/* zero based values for channel count in register */
count++;
@@ -620,12 +604,12 @@ intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num, bool pcm)
static int intel_pdi_get_ch_update(struct sdw_intel *sdw,
struct sdw_cdns_pdi *pdi,
unsigned int num_pdi,
- unsigned int *num_ch, bool pcm)
+ unsigned int *num_ch)
{
int i, ch_count = 0;
for (i = 0; i < num_pdi; i++) {
- pdi->ch_count = intel_pdi_get_ch_cap(sdw, pdi->num, pcm);
+ pdi->ch_count = intel_pdi_get_ch_cap(sdw, pdi->num);
ch_count += pdi->ch_count;
pdi++;
}
@@ -635,25 +619,23 @@ static int intel_pdi_get_ch_update(struct sdw_intel *sdw,
}
static int intel_pdi_stream_ch_update(struct sdw_intel *sdw,
- struct sdw_cdns_streams *stream, bool pcm)
+ struct sdw_cdns_streams *stream)
{
intel_pdi_get_ch_update(sdw, stream->bd, stream->num_bd,
- &stream->num_ch_bd, pcm);
+ &stream->num_ch_bd);
intel_pdi_get_ch_update(sdw, stream->in, stream->num_in,
- &stream->num_ch_in, pcm);
+ &stream->num_ch_in);
intel_pdi_get_ch_update(sdw, stream->out, stream->num_out,
- &stream->num_ch_out, pcm);
+ &stream->num_ch_out);
return 0;
}
static int intel_pdi_ch_update(struct sdw_intel *sdw)
{
- /* First update PCM streams followed by PDM streams */
- intel_pdi_stream_ch_update(sdw, &sdw->cdns.pcm, true);
- intel_pdi_stream_ch_update(sdw, &sdw->cdns.pdm, false);
+ intel_pdi_stream_ch_update(sdw, &sdw->cdns.pcm);
return 0;
}
@@ -840,7 +822,6 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
struct sdw_port_config *pconfig;
int ch, dir;
int ret;
- bool pcm = true;
dma = snd_soc_dai_get_dma_data(dai, substream);
if (!dma)
@@ -852,13 +833,7 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
else
dir = SDW_DATA_DIR_TX;
- if (dma->stream_type == SDW_STREAM_PDM)
- pcm = false;
-
- if (pcm)
- pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pcm, ch, dir, dai->id);
- else
- pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pdm, ch, dir, dai->id);
+ pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pcm, ch, dir, dai->id);
if (!pdi) {
ret = -EINVAL;
@@ -888,12 +863,7 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
sconfig.frame_rate = params_rate(params);
sconfig.type = dma->stream_type;
- if (dma->stream_type == SDW_STREAM_PDM) {
- sconfig.frame_rate *= 50;
- sconfig.bps = 1;
- } else {
- sconfig.bps = snd_pcm_format_width(params_format(params));
- }
+ sconfig.bps = snd_pcm_format_width(params_format(params));
/* Port configuration */
pconfig = kzalloc(sizeof(*pconfig), GFP_KERNEL);
@@ -1012,13 +982,7 @@ static void intel_shutdown(struct snd_pcm_substream *substream,
static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai,
void *stream, int direction)
{
- return cdns_set_sdw_stream(dai, stream, true, direction);
-}
-
-static int intel_pdm_set_sdw_stream(struct snd_soc_dai *dai,
- void *stream, int direction)
-{
- return cdns_set_sdw_stream(dai, stream, false, direction);
+ return cdns_set_sdw_stream(dai, stream, direction);
}
static void *intel_get_sdw_stream(struct snd_soc_dai *dai,
@@ -1133,16 +1097,6 @@ static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
.get_stream = intel_get_sdw_stream,
};
-static const struct snd_soc_dai_ops intel_pdm_dai_ops = {
- .startup = intel_startup,
- .hw_params = intel_hw_params,
- .prepare = intel_prepare,
- .hw_free = intel_hw_free,
- .shutdown = intel_shutdown,
- .set_sdw_stream = intel_pdm_set_sdw_stream,
- .get_sdw_stream = intel_get_sdw_stream,
-};
-
static const struct snd_soc_component_driver dai_component = {
.name = "soundwire",
.suspend = intel_component_dais_suspend
@@ -1151,7 +1105,7 @@ static const struct snd_soc_component_driver dai_component = {
static int intel_create_dai(struct sdw_cdns *cdns,
struct snd_soc_dai_driver *dais,
enum intel_pdi_type type,
- u32 num, u32 off, u32 max_ch, bool pcm)
+ u32 num, u32 off, u32 max_ch)
{
int i;
@@ -1180,10 +1134,7 @@ static int intel_create_dai(struct sdw_cdns *cdns,
dais[i].capture.formats = SNDRV_PCM_FMTBIT_S16_LE;
}
- if (pcm)
- dais[i].ops = &intel_pcm_dai_ops;
- else
- dais[i].ops = &intel_pdm_dai_ops;
+ dais[i].ops = &intel_pcm_dai_ops;
}
return 0;
@@ -1197,7 +1148,7 @@ static int intel_register_dai(struct sdw_intel *sdw)
int num_dai, ret, off = 0;
/* DAIs are created based on total number of PDIs supported */
- num_dai = cdns->pcm.num_pdi + cdns->pdm.num_pdi;
+ num_dai = cdns->pcm.num_pdi;
dais = devm_kcalloc(cdns->dev, num_dai, sizeof(*dais), GFP_KERNEL);
if (!dais)
@@ -1207,39 +1158,19 @@ static int intel_register_dai(struct sdw_intel *sdw)
stream = &cdns->pcm;
ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pcm.num_in,
- off, stream->num_ch_in, true);
+ off, stream->num_ch_in);
if (ret)
return ret;
off += cdns->pcm.num_in;
ret = intel_create_dai(cdns, dais, INTEL_PDI_OUT, cdns->pcm.num_out,
- off, stream->num_ch_out, true);
+ off, stream->num_ch_out);
if (ret)
return ret;
off += cdns->pcm.num_out;
ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pcm.num_bd,
- off, stream->num_ch_bd, true);
- if (ret)
- return ret;
-
- /* Create PDM DAIs */
- stream = &cdns->pdm;
- off += cdns->pcm.num_bd;
- ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pdm.num_in,
- off, stream->num_ch_in, false);
- if (ret)
- return ret;
-
- off += cdns->pdm.num_in;
- ret = intel_create_dai(cdns, dais, INTEL_PDI_OUT, cdns->pdm.num_out,
- off, stream->num_ch_out, false);
- if (ret)
- return ret;
-
- off += cdns->pdm.num_out;
- ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pdm.num_bd,
- off, stream->num_ch_bd, false);
+ off, stream->num_ch_bd);
if (ret)
return ret;
--
2.17.1
