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tegra-alt: arad: mixer controls to set prescalars

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Added mixer controls to set numerator and denominator
prescalar registes. This allows the corresponding
clocks to be scaled down before ratio calculation

Bug 1684121

Change-Id: I0f8769ed0f61722785ecaa2afec689bdb357e02f
Signed-off-by: Gaurav Tendolkar <gtendolkar@nvidia.com>
Reviewed-on: http://git-master/r/835222
GVS: Gerrit_Virtual_Submit
Reviewed-by: Nitin Pai <npai@nvidia.com>
This commit is contained in:
Gaurav Tendolkar
2015-11-19 16:48:03 +05:30
committed by Sameer Pujar
parent b74ed9932e
commit 43432df799
1 changed files with 56 additions and 0 deletions
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56
sound/soc/tegra-alt/tegra186_arad_alt.c
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@@ -331,6 +331,36 @@ static int tegra186_arad_put_enable_lane(struct snd_kcontrol *kcontrol,
return 0;
}
static int tegra186_arad_get_prescalar(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *arad_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tegra186_arad *arad = snd_soc_codec_get_drvdata(codec);
unsigned int reg = arad_private->reg;
unsigned int val = 0;
regmap_read(arad->regmap, reg, &val);
ucontrol->value.integer.value[0] = val;
return 0;
}
static int tegra186_arad_put_prescalar(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *arad_private =
(struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tegra186_arad *arad = snd_soc_codec_get_drvdata(codec);
unsigned int reg = arad_private->reg;
regmap_write(arad->regmap, reg, ucontrol->value.integer.value[0]);
return 0;
}
#define SOC_VALUE_ENUM_WIDE(xreg, shift, xmax, xtexts, xvalues) \
{ .reg = xreg, .shift_l = shift, .shift_r = shift, \
.items = xmax, .texts = xtexts, .values = xvalues, \
@@ -469,6 +499,18 @@ static const struct snd_soc_dapm_route tegra186_arad_routes[] = {
{ "ARAD Transmit", NULL, "Packetizer" },
};
#define ARAD_NUMERATOR_PRESCALAR(id) \
SOC_SINGLE_EXT("Numerator"#id" Prescalar", \
TEGRA186_ARAD_LANE1_NUMERATOR_PRESCALAR + (id-1)*TEGRA186_ARAD_LANE_STRIDE, \
0, 0xffff, 0, tegra186_arad_get_prescalar, \
tegra186_arad_put_prescalar)
#define ARAD_DENOMINATOR_PRESCALAR(id) \
SOC_SINGLE_EXT("Denominator"#id" Prescalar", \
TEGRA186_ARAD_LANE1_DENOMINATOR_PRESCALAR + (id-1)*TEGRA186_ARAD_LANE_STRIDE, \
0, 0xffff, 0, tegra186_arad_get_prescalar, \
tegra186_arad_put_prescalar)
static const struct snd_kcontrol_new tegra186_arad_controls[] = {
SOC_SINGLE_EXT("Lane1 enable", TEGRA186_ARAD_LANE_ENABLE, 0, 1, 0,
tegra186_arad_get_enable_lane, tegra186_arad_put_enable_lane),
@@ -531,6 +573,20 @@ static const struct snd_kcontrol_new tegra186_arad_controls[] = {
TEGRA186_ARAD_LANE6_RATIO_FRACTIONAL_PART,
0, TEGRA186_ARAD_LANE_RATIO_FRAC_PART_MASK, 0,
tegra186_arad_get_ratio_frac, NULL),
ARAD_NUMERATOR_PRESCALAR(1),
ARAD_NUMERATOR_PRESCALAR(2),
ARAD_NUMERATOR_PRESCALAR(3),
ARAD_NUMERATOR_PRESCALAR(4),
ARAD_NUMERATOR_PRESCALAR(5),
ARAD_NUMERATOR_PRESCALAR(6),
ARAD_DENOMINATOR_PRESCALAR(1),
ARAD_DENOMINATOR_PRESCALAR(2),
ARAD_DENOMINATOR_PRESCALAR(3),
ARAD_DENOMINATOR_PRESCALAR(4),
ARAD_DENOMINATOR_PRESCALAR(5),
ARAD_DENOMINATOR_PRESCALAR(6),
};
static struct snd_soc_codec_driver tegra186_arad_codec = {