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ASoC: rt5677: Add dts properties for input/output differential configuration

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Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Anatol Pomozov 2014-09-26 09:57:27 -07:00 committed by Mark Brown
parent 0e612ff10c
commit 6f67c38005
3 changed files with 36 additions and 1 deletions
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9
Documentation/devicetree/bindings/sound/rt5677.txt
View File

@ -19,6 +19,14 @@ Optional properties:
- realtek,pow-ldo2-gpio : The GPIO that controls the CODEC's POW_LDO2 pin.
- realtek,in1-differential
- realtek,in2-differential
- realtek,lout1-differential
- realtek,lout2-differential
- realtek,lout3-differential
Boolean. Indicate MIC1/2 input and LOUT1/2/3 outputs are differential,
rather than single-ended.
Pins on the device (for linking into audio routes):
* IN1P
@ -47,4 +55,5 @@ rt5677 {
realtek,pow-ldo2-gpio =
<&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
realtek,in1-differential = "true";
};

5
include/sound/rt5677.h
View File

@ -19,9 +19,12 @@ enum rt5677_dmic2_clk {
struct rt5677_platform_data {
/* IN1 IN2 can optionally be differential */
/* IN1/IN2/LOUT1/LOUT2/LOUT3 can optionally be differential */
bool in1_diff;
bool in2_diff;
bool lout1_diff;
bool lout2_diff;
bool lout3_diff;
/* DMIC2 clock source selection */
enum rt5677_dmic2_clk dmic2_clk_pin;
};

23
sound/soc/codecs/rt5677.c
View File

@ -3569,6 +3569,17 @@ MODULE_DEVICE_TABLE(i2c, rt5677_i2c_id);
static int rt5677_parse_dt(struct rt5677_priv *rt5677, struct device_node *np)
{
rt5677->pdata.in1_diff = of_property_read_bool(np,
"realtek,in1-differential");
rt5677->pdata.in2_diff = of_property_read_bool(np,
"realtek,in2-differential");
rt5677->pdata.lout1_diff = of_property_read_bool(np,
"realtek,lout1-differential");
rt5677->pdata.lout2_diff = of_property_read_bool(np,
"realtek,lout2-differential");
rt5677->pdata.lout3_diff = of_property_read_bool(np,
"realtek,lout3-differential");
rt5677->pow_ldo2 = of_get_named_gpio(np,
"realtek,pow-ldo2-gpio", 0);
@ -3660,6 +3671,18 @@ static int rt5677_i2c_probe(struct i2c_client *i2c,
regmap_update_bits(rt5677->regmap, RT5677_IN1,
RT5677_IN_DF2, RT5677_IN_DF2);
if (rt5677->pdata.lout1_diff)
regmap_update_bits(rt5677->regmap, RT5677_LOUT1,
RT5677_LOUT1_L_DF, RT5677_LOUT1_L_DF);
if (rt5677->pdata.lout2_diff)
regmap_update_bits(rt5677->regmap, RT5677_LOUT1,
RT5677_LOUT2_L_DF, RT5677_LOUT2_L_DF);
if (rt5677->pdata.lout3_diff)
regmap_update_bits(rt5677->regmap, RT5677_LOUT1,
RT5677_LOUT3_L_DF, RT5677_LOUT3_L_DF);
if (rt5677->pdata.dmic2_clk_pin == RT5677_DMIC_CLK2) {
regmap_update_bits(rt5677->regmap, RT5677_GEN_CTRL2,
RT5677_GPIO5_FUNC_MASK,