static int ds3232_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct regmap *regmap;
static const struct regmap_config config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x13,
};
regmap = devm_regmap_init_i2c(client, &config);
if (IS_ERR(regmap)) {
dev_err(&client->dev, "%s: regmap allocation failed: %ld\n",
__func__, PTR_ERR(regmap));
return PTR_ERR(regmap);
}
return ds3232_probe(&client->dev, regmap, client->irq, client->name);
}
static const struct i2c_device_id ds3232_id[] = {
{ "ds3232", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ds3232_id);
static const struct of_device_id ds3232_of_match[] = {
{ .compatible = "dallas,ds3232" },
{ }
};
static int ds3232_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct regmap *regmap;
static const struct regmap_config config = {
.reg_bits = 8,
.val_bits = 8,
};
regmap = devm_regmap_init_i2c(client, &config);
if (IS_ERR(regmap)) {
dev_err(&client->dev, "%s: regmap allocation failed: %ld\n",
__func__, PTR_ERR(regmap));
return PTR_ERR(regmap);
}
return ds3232_probe(&client->dev, regmap, client->irq, client->name);
}
static const struct i2c_device_id ds3232_id[] = {
{ "ds3232", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ds3232_id);
static struct i2c_driver ds3232_driver = {
.driver = {
.name = "rtc-ds3232",
.pm = &ds3232_pm_ops,
},
.probe = ds3232_i2c_probe,
.id_table = ds3232_id,
};
static int ds3234_probe(struct spi_device *spi)
{
int res;
unsigned int tmp;
static const struct regmap_config config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x13,
.write_flag_mask = 0x80,
};
struct regmap *regmap;
regmap = devm_regmap_init_spi(spi, &config);
if (IS_ERR(regmap)) {
dev_err(&spi->dev, "%s: regmap allocation failed: %ld\n",
__func__, PTR_ERR(regmap));
return PTR_ERR(regmap);
}
spi->mode = SPI_MODE_3;
spi->bits_per_word = 8;
spi_setup(spi);
res = regmap_read(regmap, DS3232_REG_SECONDS, &tmp);
if (res)
return res;
/* Control settings
*
* CONTROL_REG
* BIT 7 6 5 4 3 2 1 0
* EOSC BBSQW CONV RS2 RS1 INTCN A2IE A1IE
*
* 0 0 0 1 1 1 0 0
*
* CONTROL_STAT_REG
* BIT 7 6 5 4 3 2 1 0
* OSF BB32kHz CRATE1 CRATE0 EN32kHz BSY A2F A1F
*
* 1 0 0 0 1 0 0 0
*/
res = regmap_read(regmap, DS3232_REG_CR, &tmp);
if (res)
return res;
res = regmap_write(regmap, DS3232_REG_CR, tmp & 0x1c);
if (res)
return res;
res = regmap_read(regmap, DS3232_REG_SR, &tmp);
if (res)
return res;
res = regmap_write(regmap, DS3232_REG_SR, tmp & 0x88);
if (res)
return res;
/* Print our settings */
res = regmap_read(regmap, DS3232_REG_CR, &tmp);
if (res)
return res;
dev_info(&spi->dev, "Control Reg: 0x%02x\n", tmp);
res = regmap_read(regmap, DS3232_REG_SR, &tmp);
if (res)
return res;
dev_info(&spi->dev, "Ctrl/Stat Reg: 0x%02x\n", tmp);
return ds3232_probe(&spi->dev, regmap, spi->irq, "ds3234");
}
static struct spi_driver ds3234_driver = {
.driver = {
.name = "ds3234",
},
.probe = ds3234_probe,
};
