@@ -9,6 +9,7 @@
* published by the Free Software Foundation.
*/
+#include <linux/acpi.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -40,6 +41,15 @@
#define RT5677_PR_BASE (RT5677_PR_RANGE_BASE + (0 * RT5677_PR_SPACING))
+/* GPIO indexes defined by ACPI */
+enum {
+ RT5677_GPIO_PLUG_DET = 0,
+ RT5677_GPIO_MIC_PRESENT_L = 1,
+ RT5677_GPIO_HOTWORD_DET_L = 2,
+ RT5677_GPIO_DSP_INT = 3,
+ RT5677_GPIO_HP_AMP_SHDN_L = 4,
+};
+
static const struct regmap_range_cfg rt5677_ranges[] = {
{
.name = "PR",
@@ -5018,10 +5028,47 @@ static const struct regmap_config rt5677_regmap = {
static const struct i2c_device_id rt5677_i2c_id[] = {
{ "rt5677", RT5677 },
{ "rt5676", RT5676 },
+ { "RT5677CE:00", RT5677 },
{ }
};
MODULE_DEVICE_TABLE(i2c, rt5677_i2c_id);
+static const struct acpi_gpio_params plug_det_gpio = { RT5677_GPIO_PLUG_DET, 0, false };
+static const struct acpi_gpio_params mic_present_gpio = { RT5677_GPIO_MIC_PRESENT_L, 0, false };
+static const struct acpi_gpio_params headphone_enable_gpio = { RT5677_GPIO_HP_AMP_SHDN_L, 0, false };
+
+static const struct acpi_gpio_mapping bdw_rt5677_gpios[] = {
+ { "plug-det-gpios", &plug_det_gpio, 1 },
+ { "mic-present-gpios", &mic_present_gpio, 1 },
+ { "headphone-enable-gpios", &headphone_enable_gpio, 1 },
+ { NULL },
+};
+
+static void rt5677_read_acpi_properties(struct rt5677_priv *rt5677,
+ struct device *dev)
+{
+ int ret;
+ u32 val;
+
+ ret = acpi_dev_add_driver_gpios(ACPI_COMPANION(dev),
+ bdw_rt5677_gpios);
+ if (ret)
+ dev_warn(dev, "Failed to add driver gpios\n");
+
+ if (!device_property_read_u32(dev, "DCLK", &val))
+ rt5677->pdata.dmic2_clk_pin = val;
+
+ 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");
+
+ 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);
+}
+
static void rt5677_read_device_properties(struct rt5677_priv *rt5677,
struct device *dev)
{
@@ -5127,8 +5174,12 @@ static int rt5677_i2c_probe(struct i2c_client *i2c,
if (pdata)
rt5677->pdata = *pdata;
- else
+ else if (i2c->dev.of_node)
rt5677_read_device_properties(rt5677, &i2c->dev);
+ else if (ACPI_HANDLE(&i2c->dev))
+ rt5677_read_acpi_properties(rt5677, &i2c->dev);
+ else
+ return -EINVAL;
/* pow-ldo2 and reset are optional. The codec pins may be statically
* connected on the board without gpios. If the gpio device property
The Chromebook Pixel 2015 uses this codec with the ACPI ID RT5677CE, but does not use the standard DT property names so add a new function to parse the codec properties from these ACPI properties. Also, the GPIOs are only available by index, so we need to register a mapping to allow machine drivers to access the GPIOs by name. Signed-off-by: John Keeping <john@metanate.com> --- Changes in v2: - Add explicit values to ACPI GPIO enum - Add new function for reading ACPI properties, leave the existing rt5677_read_device_properties() as it was - Add entry to i2c_device_id table instead of adding acpi_driver_id sound/soc/codecs/rt5677.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 52 insertions(+), 1 deletion(-)