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ASoC: SOF: topology: pass volume min/max linear value to FW

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The driver currently passes the volume ramp type and length
topology tokens to firmware, but the min and max volume are
not set. This patch provides a correction to convert the
information from the topology file and pass the linear volume
min/max value to the firmware to improve transitions.

Signed-off-by: Zhu Yingjiang <yingjiang.zhu@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Zhu Yingjiang 2019-06-12 12:01:46 -05:00 committed by Mark Brown
parent aa66fd80e0
commit 65a18a46b2
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1 changed files with 14 additions and 0 deletions
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14
sound/soc/sof/topology.c
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@ -1552,6 +1552,9 @@ static int sof_widget_load_pga(struct snd_soc_component *scomp, int index,
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
struct snd_soc_tplg_private *private = &tw->priv;
struct sof_ipc_comp_volume *volume;
struct snd_sof_control *scontrol;
int min_step;
int max_step;
int ret;
volume = kzalloc(sizeof(*volume), GFP_KERNEL);
@ -1594,6 +1597,17 @@ static int sof_widget_load_pga(struct snd_soc_component *scomp, int index,
swidget->private = volume;
list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {
if (scontrol->comp_id == swidget->comp_id) {
min_step = scontrol->min_volume_step;
max_step = scontrol->max_volume_step;
volume->min_value = scontrol->volume_table[min_step];
volume->max_value = scontrol->volume_table[max_step];
volume->channels = scontrol->num_channels;
break;
}
}
ret = sof_ipc_tx_message(sdev->ipc, volume->comp.hdr.cmd, volume,
sizeof(*volume), r, sizeof(*r));
if (ret >= 0)