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ASoC: SOF: topology: add min/max step for volume_table

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add two units min_volume_step and max_volume_step to the snd_sof_control
struct, for the min and max step of the volume_table.

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 12:01:45 -05:00 committed by Mark Brown
parent 847a040dd2
commit aa66fd80e0
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GPG Key ID: 24D68B725D5487D0
2 changed files with 4 additions and 0 deletions
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2
sound/soc/sof/sof-priv.h
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@ -297,6 +297,8 @@ struct snd_sof_pcm {
struct snd_sof_control {
struct snd_sof_dev *sdev;
int comp_id;
int min_volume_step; /* min volume step for volume_table */
int max_volume_step; /* max volume step for volume_table */
int num_channels;
u32 readback_offset; /* offset to mmaped data if used */
struct sof_ipc_ctrl_data *control_data;

2
sound/soc/sof/topology.c
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@ -451,6 +451,8 @@ static int sof_control_load_volume(struct snd_soc_component *scomp,
return -ENOMEM;
scontrol->comp_id = sdev->next_comp_id;
scontrol->min_volume_step = le32_to_cpu(mc->min);
scontrol->max_volume_step = le32_to_cpu(mc->max);
scontrol->num_channels = le32_to_cpu(mc->num_channels);
/* set cmd for mixer control */