ASoC: rt5677: fall back to DT prop names on error

The rt5677 driver uses ACPI-style property names to read from the
device API. However, these do not match the property names in _DSD
used on the Chromebook Pixel 2015, which are closer to the Device Tree
style.  Unify the two functions for reading from the device API so that
they try ACPI-style names first and fall back to the DT names on error.

With this patch, plugging and unplugging the headphone jack switches
between headphones and speakers automatically.

Signed-off-by: Fletcher Woodruff <fletcherw@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index c49b5c2..fe000f3 100644 (file)
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -5020,48 +5020,50 @@ static const struct acpi_device_id rt5677_acpi_match[] = {
 };
 MODULE_DEVICE_TABLE(acpi, rt5677_acpi_match);
 
-static void rt5677_read_acpi_properties(struct rt5677_priv *rt5677,
+static void rt5677_read_device_properties(struct rt5677_priv *rt5677,
                struct device *dev)
 {
        u32 val;
 
-       if (!device_property_read_u32(dev, "DCLK", &val))
-               rt5677->pdata.dmic2_clk_pin = val;
+       rt5677->pdata.in1_diff =
+               device_property_read_bool(dev, "IN1") ||
+               device_property_read_bool(dev, "realtek,in1-differential");
 
-       rt5677->pdata.in1_diff = device_property_read_bool(dev, "IN1");
-       rt5677->pdata.in2_diff = device_property_read_bool(dev, "IN2");
-       rt5677->pdata.lout1_diff = device_property_read_bool(dev, "OUT1");
-       rt5677->pdata.lout2_diff = device_property_read_bool(dev, "OUT2");
-       rt5677->pdata.lout3_diff = device_property_read_bool(dev, "OUT3");
+       rt5677->pdata.in2_diff =
+               device_property_read_bool(dev, "IN2") ||
+               device_property_read_bool(dev, "realtek,in2-differential");
 
-       device_property_read_u32(dev, "JD1", &rt5677->pdata.jd1_gpio);
-       device_property_read_u32(dev, "JD2", &rt5677->pdata.jd2_gpio);
-       device_property_read_u32(dev, "JD3", &rt5677->pdata.jd3_gpio);
-}
+       rt5677->pdata.lout1_diff =
+               device_property_read_bool(dev, "OUT1") ||
+               device_property_read_bool(dev, "realtek,lout1-differential");
 
-static void rt5677_read_device_properties(struct rt5677_priv *rt5677,
-               struct device *dev)
-{
-       rt5677->pdata.in1_diff = device_property_read_bool(dev,
-                       "realtek,in1-differential");
-       rt5677->pdata.in2_diff = device_property_read_bool(dev,
-                       "realtek,in2-differential");
-       rt5677->pdata.lout1_diff = device_property_read_bool(dev,
-                       "realtek,lout1-differential");
-       rt5677->pdata.lout2_diff = device_property_read_bool(dev,
-                       "realtek,lout2-differential");
-       rt5677->pdata.lout3_diff = device_property_read_bool(dev,
-                       "realtek,lout3-differential");
+       rt5677->pdata.lout2_diff =
+               device_property_read_bool(dev, "OUT2") ||
+               device_property_read_bool(dev, "realtek,lout2-differential");
+
+       rt5677->pdata.lout3_diff =
+               device_property_read_bool(dev, "OUT3") ||
+               device_property_read_bool(dev, "realtek,lout3-differential");
 
        device_property_read_u8_array(dev, "realtek,gpio-config",
-                       rt5677->pdata.gpio_config, RT5677_GPIO_NUM);
-
-       device_property_read_u32(dev, "realtek,jd1-gpio",
-                       &rt5677->pdata.jd1_gpio);
-       device_property_read_u32(dev, "realtek,jd2-gpio",
-                       &rt5677->pdata.jd2_gpio);
-       device_property_read_u32(dev, "realtek,jd3-gpio",
-                       &rt5677->pdata.jd3_gpio);
+                                     rt5677->pdata.gpio_config,
+                                     RT5677_GPIO_NUM);
+
+       if (!device_property_read_u32(dev, "DCLK", &val) ||
+           !device_property_read_u32(dev, "realtek,dmic2_clk_pin", &val))
+               rt5677->pdata.dmic2_clk_pin = val;
+
+       if (!device_property_read_u32(dev, "JD1", &val) ||
+           !device_property_read_u32(dev, "realtek,jd1-gpio", &val))
+               rt5677->pdata.jd1_gpio = val;
+
+       if (!device_property_read_u32(dev, "JD2", &val) ||
+           !device_property_read_u32(dev, "realtek,jd2-gpio", &val))
+               rt5677->pdata.jd2_gpio = val;
+
+       if (!device_property_read_u32(dev, "JD3", &val) ||
+           !device_property_read_u32(dev, "realtek,jd3-gpio", &val))
+               rt5677->pdata.jd3_gpio = val;
 }
 
 static struct regmap_irq rt5677_irqs[] = {
@@ -5144,20 +5146,18 @@ static int rt5677_i2c_probe(struct i2c_client *i2c)
                match_id = of_match_device(rt5677_of_match, &i2c->dev);
                if (match_id)
                        rt5677->type = (enum rt5677_type)match_id->data;
-
-               rt5677_read_device_properties(rt5677, &i2c->dev);
        } else if (ACPI_HANDLE(&i2c->dev)) {
                const struct acpi_device_id *acpi_id;
 
                acpi_id = acpi_match_device(rt5677_acpi_match, &i2c->dev);
                if (acpi_id)
                        rt5677->type = (enum rt5677_type)acpi_id->driver_data;
-
-               rt5677_read_acpi_properties(rt5677, &i2c->dev);
        } else {
                return -EINVAL;
        }
 
+       rt5677_read_device_properties(rt5677, &i2c->dev);
+
        /* pow-ldo2 and reset are optional. The codec pins may be statically
         * connected on the board without gpios. If the gpio device property
         * isn't specified, devm_gpiod_get_optional returns NULL.