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ASoC: tegra-alt: use ch select value for no of ch

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Use the channel select control input to decide on the no of channels for the
dmic configuration, this way we can capture more than 2 channels using tinycap
which wont effect the dmic configuration, which will sole depends on ch select
mixer control value.

Bug 1833091

Change-Id: I3233913c62a311f3ff08116ebccea0a807e6efb4
Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
Reviewed-on: http://git-master/r/1246322
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Viswanath L <viswanathl@nvidia.com>
Reviewed-by: Ravindra Lokhande <rlokhande@nvidia.com>
This commit is contained in:
Mohan Kumar
2016-11-02 15:24:22 +05:30
committed by Sameer Pujar
parent 995c9c85a2
commit 90edd0856e
1 changed files with 6 additions and 3 deletions
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9
sound/soc/tegra-alt/tegra210_dmic_alt.c
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@@ -158,10 +158,13 @@ static int tegra210_dmic_hw_params(struct snd_pcm_substream *substream,
srate = params_rate(params);
dmic_clk = (1 << (6+osr)) * srate;
if (channels < 2)
if (dmic->ch_select == DMIC_CH_SELECT_NONE) {
channels = 2;
channel_select = DMIC_CH_SELECT_STEREO;
} else {
channels = 1;
channel_select = dmic->ch_select;
else
channel_select = (1 << channels) - 1;
}
if ((tegra_platform_is_unit_fpga() || tegra_platform_is_fpga())) {
program_dmic_gpio();