struct rt1011_priv *rt1011 =
container_of(work, struct rt1011_priv, cali_work);
struct snd_soc_component *component = rt1011->component;
+ unsigned int r0_integer, r0_factor, format;
- rt1011_calibrate(rt1011, 1);
+ if (rt1011->r0_calib)
+ rt1011_calibrate(rt1011, 0);
+ else
+ rt1011_calibrate(rt1011, 1);
/*
* This flag should reset after booting.
/* initial */
rt1011_reg_init(component);
+
+ /* Apply temperature and calibration data from device property */
+ if (rt1011->temperature_calib) {
+ snd_soc_component_update_bits(component,
+ RT1011_STP_INITIAL_RESISTANCE_TEMP, 0x3ff,
+ (rt1011->temperature_calib << 2));
+ }
+
+ if (rt1011->r0_calib) {
+ rt1011->r0_reg = rt1011->r0_calib;
+
+ format = 2147483648U; /* 2^24 * 128 */
+ r0_integer = format / rt1011->r0_reg / 128;
+ r0_factor = ((format / rt1011->r0_reg * 100) / 128)
+ - (r0_integer * 100);
+ dev_info(component->dev, "DP r0 resistance about %d.%02d ohm, reg=0x%X\n",
+ r0_integer, r0_factor, rt1011->r0_reg);
+
+ rt1011_r0_load(rt1011);
+ }
+}
+
+static int rt1011_parse_dp(struct rt1011_priv *rt1011, struct device *dev)
+{
+ device_property_read_u32(dev, "realtek,temperature_calib",
+ &rt1011->temperature_calib);
+ device_property_read_u32(dev, "realtek,r0_calib",
+ &rt1011->r0_calib);
+
+ dev_dbg(dev, "%s: r0_calib: 0x%x, temperture_calib: 0x%x",
+ __func__, rt1011->r0_calib, rt1011->temperature_calib);
+
+ return 0;
}
static int rt1011_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, rt1011);
+ rt1011_parse_dp(rt1011, &i2c->dev);
+
rt1011->regmap = devm_regmap_init_i2c(i2c, &rt1011_regmap);
if (IS_ERR(rt1011->regmap)) {
ret = PTR_ERR(rt1011->regmap);