Add required tables and the binding document for ACPI and OF matching.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Bard Liao bardliao@realtek.com --- Documentation/devicetree/bindings/sound/rt5651.txt | 41 ++++++++++++++++++++++ sound/soc/codecs/rt5651.c | 31 ++++++++++++++++ 2 files changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/rt5651.txt
diff --git a/Documentation/devicetree/bindings/sound/rt5651.txt b/Documentation/devicetree/bindings/sound/rt5651.txt new file mode 100644 index 0000000..3875233 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rt5651.txt @@ -0,0 +1,41 @@ +RT5651 audio CODEC + +This device supports I2C only. + +Required properties: + +- compatible : "realtek,rt5651". + +- reg : The I2C address of the device. + +Optional properties: + +- realtek,in2-differential + Boolean. Indicate MIC2 input are differential, rather than single-ended. + +- realtek,dmic-en + Boolean. true if dmic is used. + +Pins on the device (for linking into audio routes) for RT5651: + + * DMIC L1 + * DMIC R1 + * IN1P + * IN2P + * IN2N + * IN3P + * HPOL + * HPOR + * LOUTL + * LOUTR + * PDML + * PDMR + +Example: + +codec: rt5651@1a { + compatible = "realtek,rt5651"; + reg = <0x1a>; + realtek,dmic-en = "true"; + realtek,in2-diff = "false"; +}; diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c index 1d40318..7a61970 100644 --- a/sound/soc/codecs/rt5651.c +++ b/sound/soc/codecs/rt5651.c @@ -18,6 +18,7 @@ #include <linux/regmap.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> +#include <linux/acpi.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -1735,12 +1736,38 @@ static const struct regmap_config rt5651_regmap = { .num_ranges = ARRAY_SIZE(rt5651_ranges), };
+#if defined(CONFIG_OF) +static const struct of_device_id rt5651_of_match[] = { + { .compatible = "realtek,rt5651", }, + {}, +}; +MODULE_DEVICE_TABLE(of, rt5651_of_match); +#endif + +#ifdef CONFIG_ACPI +static const struct acpi_device_id rt5651_acpi_match[] = { + { "10EC5651", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, rt5651_acpi_match); +#endif + static const struct i2c_device_id rt5651_i2c_id[] = { { "rt5651", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, rt5651_i2c_id);
+static int rt5651_parse_dt(struct rt5651_priv *rt5651, struct device_node *np) +{ + rt5651->pdata.in2_diff = of_property_read_bool(np, + "realtek,in2-differential"); + rt5651->pdata.dmic_en = of_property_read_bool(np, + "realtek,dmic-en"); + + return 0; +} + static int rt5651_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { @@ -1757,6 +1784,8 @@ static int rt5651_i2c_probe(struct i2c_client *i2c,
if (pdata) rt5651->pdata = *pdata; + else if (i2c->dev.of_node) + rt5651_parse_dt(rt5651, i2c->dev.of_node);
rt5651->regmap = devm_regmap_init_i2c(i2c, &rt5651_regmap); if (IS_ERR(rt5651->regmap)) { @@ -1806,6 +1835,8 @@ static int rt5651_i2c_remove(struct i2c_client *i2c) static struct i2c_driver rt5651_i2c_driver = { .driver = { .name = "rt5651", + .acpi_match_table = ACPI_PTR(rt5651_acpi_match), + .of_match_table = of_match_ptr(rt5651_of_match), }, .probe = rt5651_i2c_probe, .remove = rt5651_i2c_remove,