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ASoC: tegra-alt: Reading Mixer RX Gain always returns 0

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Reading the mixer RX Gain always returns 0 and this is because
the function to return the gain setting has not been implemented
completely. Fix this by returning the programmed gain value in the
function tegra210_mixer_get_format().

Bug 2438553

Change-Id: I4e6e5a6fe3373982cbb063ce3276428e0a1a2c1a
Signed-off-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1945622
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Jonathan Hunter
2018-11-08 09:32:47 +00:00
committed by Sameer Pujar
parent 0f9b5bd384
commit 1120a5768f
1 changed files with 11 additions and 0 deletions
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11
sound/soc/tegra-alt/tegra210_mixer_alt.c
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@@ -181,6 +181,17 @@ static int tegra210_mixer_get_format(struct snd_kcontrol *kcontrol,
static int tegra210_mixer_get_gain(struct snd_kcontrol *kcontrol, static int tegra210_mixer_get_gain(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol) struct snd_ctl_elem_value *ucontrol)
{ {
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tegra210_mixer *mixer = snd_soc_codec_get_drvdata(codec);
unsigned int reg = mc->reg;
unsigned int i;
i = (reg - TEGRA210_MIXER_AHUBRAMCTL_GAIN_CONFIG_RAM_ADDR_0) /
TEGRA210_MIXER_AHUBRAMCTL_GAIN_CONFIG_RAM_ADDR_STRIDE;
ucontrol->value.integer.value[0] = mixer->gain_value[i];
return 0; return 0;
} }