ASoC: SOF: topology: pass volume min/max linear value to FW (65a18a46) · Commits · 戴 / test

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>

sound/soc/sof/topology.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -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)

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