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drivers: counter: maxim_ds3231: use i2c_dt_spec

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Simplify implementation by using i2c_dt_spec.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas 2022-01-28 12:01:17 +01:00 • committed by Anas Nashif
commit 85d0ef6e55
1 changed files with 16 additions and 26 deletions
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40
drivers/counter/maxim_ds3231.c
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@ -71,14 +71,12 @@ struct gpios {
struct ds3231_config {
/* Common structure first because generic API expects this here. */
struct counter_config_info generic;
const char *bus_name;
struct i2c_dt_spec bus;
struct gpios isw_gpios;
uint16_t addr;
};
struct ds3231_data {
const struct device *ds3231;
const struct device *i2c;
const struct device *isw;
struct register_map registers;
@ -159,7 +157,7 @@ static int sc_ctrl(const struct device *dev,
offsetof(struct register_map, ctrl),
ctrl,
};
rc = i2c_write(data->i2c, buf, sizeof(buf), cfg->addr);
rc = i2c_write_dt(&cfg->bus, buf, sizeof(buf));
if (rc >= 0) {
rp->ctrl = ctrl;
rc = ctrl;
@ -206,9 +204,8 @@ static inline int rsc_stat(const struct device *dev,
uint8_t addr = offsetof(struct register_map, ctrl_stat);
int rc;
rc = i2c_write_read(data->i2c, cfg->addr,
&addr, sizeof(addr),
&rp->ctrl_stat, sizeof(rp->ctrl_stat));
rc = i2c_write_read_dt(&cfg->bus, &addr, sizeof(addr), &rp->ctrl_stat,
sizeof(rp->ctrl_stat));
if (rc >= 0) {
uint8_t stat = rp->ctrl_stat & ~clear;
@ -217,7 +214,7 @@ static inline int rsc_stat(const struct device *dev,
addr,
stat | (ign & ~(set | clear)),
};
rc = i2c_write(data->i2c, buf, sizeof(buf), cfg->addr);
rc = i2c_write_dt(&cfg->bus, buf, sizeof(buf));
}
if (rc >= 0) {
rc = rp->ctrl_stat;
@ -455,9 +452,8 @@ static int update_registers(const struct device *dev)
uint8_t addr = 0;
data->syncclock_base = maxim_ds3231_read_syncclock(dev);
rc = i2c_write_read(data->i2c, cfg->addr,
&addr, sizeof(addr),
&data->registers, sizeof(data->registers));
rc = i2c_write_read_dt(&cfg->bus, &addr, sizeof(addr), &data->registers,
sizeof(data->registers));
syncclock = maxim_ds3231_read_syncclock(dev);
if (rc < 0) {
return rc;
@ -493,9 +489,7 @@ int maxim_ds3231_get_alarm(const struct device *dev,
/* Update alarm structure */
uint8_t *rbp = &data->registers.sec + addr;
rv = i2c_write_read(data->i2c, cfg->addr,
&addr, sizeof(addr),
rbp, len);
rv = i2c_write_read_dt(&cfg->bus, &addr, sizeof(addr), rbp, len);
if (rv < 0) {
LOG_DBG("get_config at %02x failed: %d\n", addr, rv);
@ -584,7 +578,7 @@ static int set_alarm(const struct device *dev,
*/
rc = rsc_stat(dev, 0U, (MAXIM_DS3231_ALARM1 << id));
if (rc >= 0) {
rc = i2c_write(data->i2c, buf, len + 1, cfg->addr);
rc = i2c_write_dt(&cfg->bus, buf, len + 1);
}
if ((rc >= 0)
&& (cp->handler != NULL)) {
@ -754,8 +748,7 @@ static int read_time(const struct device *dev,
const struct ds3231_config *cfg = dev->config;
uint8_t addr = 0;
int rc = i2c_write_read(data->i2c, cfg->addr,
&addr, sizeof(addr),
int rc = i2c_write_read_dt(&cfg->bus, &addr, sizeof(addr),
&data->registers, 7);
if (rc >= 0) {
@ -922,7 +915,7 @@ static void sync_finish_write(const struct device *dev)
*bp++ = val;
uint32_t syncclock = maxim_ds3231_read_syncclock(dev);
int rc = i2c_write(data->i2c, buf, bp - buf, cfg->addr);
int rc = i2c_write_dt(&cfg->bus, buf, bp - buf);
if (rc >= 0) {
data->syncpoint.rtc.tv_sec = when;
@ -1119,20 +1112,18 @@ static int ds3231_init(const struct device *dev)
{
struct ds3231_data *data = dev->data;
const struct ds3231_config *cfg = dev->config;
const struct device *i2c = device_get_binding(cfg->bus_name);
int rc;
/* Initialize and take the lock */
k_sem_init(&data->lock, 0, 1);
data->ds3231 = dev;
if (i2c == NULL) {
LOG_WRN("Failed to get I2C %s", cfg->bus_name);
rc = -EINVAL;
if (!device_is_ready(cfg->bus.bus)) {
LOG_ERR("I2C device not ready");
rc = -ENODEV;
goto out;
}
data->i2c = i2c;
rc = update_registers(dev);
if (rc < 0) {
LOG_WRN("Failed to fetch registers: %d", rc);
@ -1299,7 +1290,7 @@ static const struct ds3231_config ds3231_0_config = {
.flags = COUNTER_CONFIG_INFO_COUNT_UP,
.channels = 2,
},
.bus_name = DT_INST_BUS_LABEL(0),
.bus = I2C_DT_SPEC_INST_GET(0),
/* Driver does not currently use 32k GPIO. */
#if DT_INST_NODE_HAS_PROP(0, isw_gpios)
.isw_gpios = {
@ -1308,7 +1299,6 @@ static const struct ds3231_config ds3231_0_config = {
DT_INST_GPIO_FLAGS(0, isw_gpios),
},
#endif
.addr = DT_INST_REG_ADDR(0),
};
static struct ds3231_data ds3231_0_data;