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path: root/drivers/rtc/rtc-rv3029c2.c
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Diffstat (limited to 'drivers/rtc/rtc-rv3029c2.c')
-rw-r--r--drivers/rtc/rtc-rv3029c2.c132
1 files changed, 57 insertions, 75 deletions
diff --git a/drivers/rtc/rtc-rv3029c2.c b/drivers/rtc/rtc-rv3029c2.c
index d0cbf08040cd..091be483e3e9 100644
--- a/drivers/rtc/rtc-rv3029c2.c
+++ b/drivers/rtc/rtc-rv3029c2.c
@@ -116,9 +116,8 @@
#define RV3029_USR2_RAM_PAGE 0x3C
#define RV3029_USR2_SECTION_LEN 0x04
-static int
-rv3029_i2c_read_regs(struct i2c_client *client, u8 reg, u8 *buf,
- unsigned len)
+static int rv3029_read_regs(struct i2c_client *client, u8 reg, u8 *buf,
+ unsigned len)
{
int ret;
@@ -134,9 +133,8 @@ rv3029_i2c_read_regs(struct i2c_client *client, u8 reg, u8 *buf,
return 0;
}
-static int
-rv3029_i2c_write_regs(struct i2c_client *client, u8 reg, u8 const buf[],
- unsigned len)
+static int rv3029_write_regs(struct i2c_client *client, u8 reg, u8 const buf[],
+ unsigned len)
{
if ((reg > RV3029_USR1_RAM_PAGE + 7) ||
(reg + len > RV3029_USR1_RAM_PAGE + 8))
@@ -145,28 +143,27 @@ rv3029_i2c_write_regs(struct i2c_client *client, u8 reg, u8 const buf[],
return i2c_smbus_write_i2c_block_data(client, reg, len, buf);
}
-static int
-rv3029_i2c_update_bits(struct i2c_client *client, u8 reg, u8 mask, u8 set)
+static int rv3029_update_bits(struct i2c_client *client, u8 reg, u8 mask,
+ u8 set)
{
u8 buf;
int ret;
- ret = rv3029_i2c_read_regs(client, reg, &buf, 1);
+ ret = rv3029_read_regs(client, reg, &buf, 1);
if (ret < 0)
return ret;
buf &= ~mask;
buf |= set & mask;
- ret = rv3029_i2c_write_regs(client, reg, &buf, 1);
+ ret = rv3029_write_regs(client, reg, &buf, 1);
if (ret < 0)
return ret;
return 0;
}
-static int
-rv3029_i2c_get_sr(struct i2c_client *client, u8 *buf)
+static int rv3029_get_sr(struct i2c_client *client, u8 *buf)
{
- int ret = rv3029_i2c_read_regs(client, RV3029_STATUS, buf, 1);
+ int ret = rv3029_read_regs(client, RV3029_STATUS, buf, 1);
if (ret < 0)
return -EIO;
@@ -174,14 +171,13 @@ rv3029_i2c_get_sr(struct i2c_client *client, u8 *buf)
return 0;
}
-static int
-rv3029_i2c_set_sr(struct i2c_client *client, u8 val)
+static int rv3029_set_sr(struct i2c_client *client, u8 val)
{
u8 buf[1];
int sr;
buf[0] = val;
- sr = rv3029_i2c_write_regs(client, RV3029_STATUS, buf, 1);
+ sr = rv3029_write_regs(client, RV3029_STATUS, buf, 1);
dev_dbg(&client->dev, "status = 0x%.2x (%d)\n", buf[0], buf[0]);
if (sr < 0)
return -EIO;
@@ -194,7 +190,7 @@ static int rv3029_eeprom_busywait(struct i2c_client *client)
u8 sr;
for (i = 100; i > 0; i--) {
- ret = rv3029_i2c_get_sr(client, &sr);
+ ret = rv3029_get_sr(client, &sr);
if (ret < 0)
break;
if (!(sr & RV3029_STATUS_EEBUSY))
@@ -212,9 +208,9 @@ static int rv3029_eeprom_busywait(struct i2c_client *client)
static int rv3029_eeprom_exit(struct i2c_client *client)
{
/* Re-enable eeprom refresh */
- return rv3029_i2c_update_bits(client, RV3029_ONOFF_CTRL,
- RV3029_ONOFF_CTRL_EERE,
- RV3029_ONOFF_CTRL_EERE);
+ return rv3029_update_bits(client, RV3029_ONOFF_CTRL,
+ RV3029_ONOFF_CTRL_EERE,
+ RV3029_ONOFF_CTRL_EERE);
}
static int rv3029_eeprom_enter(struct i2c_client *client)
@@ -223,7 +219,7 @@ static int rv3029_eeprom_enter(struct i2c_client *client)
u8 sr;
/* Check whether we are in the allowed voltage range. */
- ret = rv3029_i2c_get_sr(client, &sr);
+ ret = rv3029_get_sr(client, &sr);
if (ret < 0)
return ret;
if (sr & (RV3029_STATUS_VLOW1 | RV3029_STATUS_VLOW2)) {
@@ -232,11 +228,11 @@ static int rv3029_eeprom_enter(struct i2c_client *client)
*/
sr &= ~RV3029_STATUS_VLOW1;
sr &= ~RV3029_STATUS_VLOW2;
- ret = rv3029_i2c_set_sr(client, sr);
+ ret = rv3029_set_sr(client, sr);
if (ret < 0)
return ret;
usleep_range(1000, 10000);
- ret = rv3029_i2c_get_sr(client, &sr);
+ ret = rv3029_get_sr(client, &sr);
if (ret < 0)
return ret;
if (sr & (RV3029_STATUS_VLOW1 | RV3029_STATUS_VLOW2)) {
@@ -247,8 +243,8 @@ static int rv3029_eeprom_enter(struct i2c_client *client)
}
/* Disable eeprom refresh. */
- ret = rv3029_i2c_update_bits(client, RV3029_ONOFF_CTRL,
- RV3029_ONOFF_CTRL_EERE, 0);
+ ret = rv3029_update_bits(client, RV3029_ONOFF_CTRL,
+ RV3029_ONOFF_CTRL_EERE, 0);
if (ret < 0)
return ret;
@@ -269,7 +265,7 @@ static int rv3029_eeprom_read(struct i2c_client *client, u8 reg,
if (err < 0)
return err;
- ret = rv3029_i2c_read_regs(client, reg, buf, len);
+ ret = rv3029_read_regs(client, reg, buf, len);
err = rv3029_eeprom_exit(client);
if (err < 0)
@@ -290,11 +286,11 @@ static int rv3029_eeprom_write(struct i2c_client *client, u8 reg,
return err;
for (i = 0; i < len; i++, reg++) {
- ret = rv3029_i2c_read_regs(client, reg, &tmp, 1);
+ ret = rv3029_read_regs(client, reg, &tmp, 1);
if (ret < 0)
break;
if (tmp != buf[i]) {
- ret = rv3029_i2c_write_regs(client, reg, &buf[i], 1);
+ ret = rv3029_write_regs(client, reg, &buf[i], 1);
if (ret < 0)
break;
}
@@ -328,21 +324,20 @@ static int rv3029_eeprom_update_bits(struct i2c_client *client,
return 0;
}
-static int
-rv3029_i2c_read_time(struct i2c_client *client, struct rtc_time *tm)
+static int rv3029_read_time(struct i2c_client *client, struct rtc_time *tm)
{
u8 buf[1];
int ret;
u8 regs[RV3029_WATCH_SECTION_LEN] = { 0, };
- ret = rv3029_i2c_get_sr(client, buf);
+ ret = rv3029_get_sr(client, buf);
if (ret < 0) {
dev_err(&client->dev, "%s: reading SR failed\n", __func__);
return -EIO;
}
- ret = rv3029_i2c_read_regs(client, RV3029_W_SEC, regs,
- RV3029_WATCH_SECTION_LEN);
+ ret = rv3029_read_regs(client, RV3029_W_SEC, regs,
+ RV3029_WATCH_SECTION_LEN);
if (ret < 0) {
dev_err(&client->dev, "%s: reading RTC section failed\n",
__func__);
@@ -375,24 +370,24 @@ rv3029_i2c_read_time(struct i2c_client *client, struct rtc_time *tm)
static int rv3029_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
- return rv3029_i2c_read_time(to_i2c_client(dev), tm);
+ return rv3029_read_time(to_i2c_client(dev), tm);
}
-static int
-rv3029_i2c_read_alarm(struct i2c_client *client, struct rtc_wkalrm *alarm)
+static int rv3029_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
+ struct i2c_client *client = to_i2c_client(dev);
struct rtc_time *const tm = &alarm->time;
int ret;
u8 regs[8];
- ret = rv3029_i2c_get_sr(client, regs);
+ ret = rv3029_get_sr(client, regs);
if (ret < 0) {
dev_err(&client->dev, "%s: reading SR failed\n", __func__);
return -EIO;
}
- ret = rv3029_i2c_read_regs(client, RV3029_A_SC, regs,
- RV3029_ALARM_SECTION_LEN);
+ ret = rv3029_read_regs(client, RV3029_A_SC, regs,
+ RV3029_ALARM_SECTION_LEN);
if (ret < 0) {
dev_err(&client->dev, "%s: reading alarm section failed\n",
@@ -411,21 +406,14 @@ rv3029_i2c_read_alarm(struct i2c_client *client, struct rtc_wkalrm *alarm)
return 0;
}
-static int
-rv3029_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
-{
- return rv3029_i2c_read_alarm(to_i2c_client(dev), alarm);
-}
-
-static int rv3029_rtc_i2c_alarm_set_irq(struct i2c_client *client,
- int enable)
+static int rv3029_rtc_alarm_set_irq(struct i2c_client *client, int enable)
{
int ret;
/* enable/disable AIE irq */
- ret = rv3029_i2c_update_bits(client, RV3029_IRQ_CTRL,
- RV3029_IRQ_CTRL_AIE,
- (enable ? RV3029_IRQ_CTRL_AIE : 0));
+ ret = rv3029_update_bits(client, RV3029_IRQ_CTRL,
+ RV3029_IRQ_CTRL_AIE,
+ (enable ? RV3029_IRQ_CTRL_AIE : 0));
if (ret < 0) {
dev_err(&client->dev, "can't update INT reg\n");
return ret;
@@ -434,9 +422,9 @@ static int rv3029_rtc_i2c_alarm_set_irq(struct i2c_client *client,
return 0;
}
-static int rv3029_rtc_i2c_set_alarm(struct i2c_client *client,
- struct rtc_wkalrm *alarm)
+static int rv3029_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
+ struct i2c_client *client = to_i2c_client(dev);
struct rtc_time *const tm = &alarm->time;
int ret;
u8 regs[8];
@@ -449,7 +437,7 @@ static int rv3029_rtc_i2c_set_alarm(struct i2c_client *client,
if (tm->tm_year < 100)
return -EINVAL;
- ret = rv3029_i2c_get_sr(client, regs);
+ ret = rv3029_get_sr(client, regs);
if (ret < 0) {
dev_err(&client->dev, "%s: reading SR failed\n", __func__);
return -EIO;
@@ -462,28 +450,28 @@ static int rv3029_rtc_i2c_set_alarm(struct i2c_client *client,
regs[RV3029_A_DW-RV3029_A_SC] = bin2bcd((tm->tm_wday & 7) - 1);
regs[RV3029_A_YR-RV3029_A_SC] = bin2bcd((tm->tm_year & 0x7f) - 100);
- ret = rv3029_i2c_write_regs(client, RV3029_A_SC, regs,
- RV3029_ALARM_SECTION_LEN);
+ ret = rv3029_write_regs(client, RV3029_A_SC, regs,
+ RV3029_ALARM_SECTION_LEN);
if (ret < 0)
return ret;
if (alarm->enabled) {
/* clear AF flag */
- ret = rv3029_i2c_update_bits(client, RV3029_IRQ_FLAGS,
- RV3029_IRQ_FLAGS_AF, 0);
+ ret = rv3029_update_bits(client, RV3029_IRQ_FLAGS,
+ RV3029_IRQ_FLAGS_AF, 0);
if (ret < 0) {
dev_err(&client->dev, "can't clear alarm flag\n");
return ret;
}
/* enable AIE irq */
- ret = rv3029_rtc_i2c_alarm_set_irq(client, 1);
+ ret = rv3029_rtc_alarm_set_irq(client, 1);
if (ret)
return ret;
dev_dbg(&client->dev, "alarm IRQ armed\n");
} else {
/* disable AIE irq */
- ret = rv3029_rtc_i2c_alarm_set_irq(client, 0);
+ ret = rv3029_rtc_alarm_set_irq(client, 0);
if (ret)
return ret;
@@ -493,13 +481,7 @@ static int rv3029_rtc_i2c_set_alarm(struct i2c_client *client,
return 0;
}
-static int rv3029_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
-{
- return rv3029_rtc_i2c_set_alarm(to_i2c_client(dev), alarm);
-}
-
-static int
-rv3029_i2c_set_time(struct i2c_client *client, struct rtc_time const *tm)
+static int rv3029_set_time(struct i2c_client *client, struct rtc_time const *tm)
{
u8 regs[8];
int ret;
@@ -520,18 +502,18 @@ rv3029_i2c_set_time(struct i2c_client *client, struct rtc_time const *tm)
regs[RV3029_W_DAYS-RV3029_W_SEC] = bin2bcd((tm->tm_wday & 7)+1);
regs[RV3029_W_YEARS-RV3029_W_SEC] = bin2bcd(tm->tm_year - 100);
- ret = rv3029_i2c_write_regs(client, RV3029_W_SEC, regs,
- RV3029_WATCH_SECTION_LEN);
+ ret = rv3029_write_regs(client, RV3029_W_SEC, regs,
+ RV3029_WATCH_SECTION_LEN);
if (ret < 0)
return ret;
- ret = rv3029_i2c_get_sr(client, regs);
+ ret = rv3029_get_sr(client, regs);
if (ret < 0) {
dev_err(&client->dev, "%s: reading SR failed\n", __func__);
return ret;
}
/* clear PON bit */
- ret = rv3029_i2c_set_sr(client, (regs[0] & ~RV3029_STATUS_PON));
+ ret = rv3029_set_sr(client, (regs[0] & ~RV3029_STATUS_PON));
if (ret < 0) {
dev_err(&client->dev, "%s: reading SR failed\n", __func__);
return ret;
@@ -542,7 +524,7 @@ rv3029_i2c_set_time(struct i2c_client *client, struct rtc_time const *tm)
static int rv3029_rtc_set_time(struct device *dev, struct rtc_time *tm)
{
- return rv3029_i2c_set_time(to_i2c_client(dev), tm);
+ return rv3029_set_time(to_i2c_client(dev), tm);
}
static const struct rv3029_trickle_tab_elem {
@@ -646,7 +628,7 @@ static int rv3029_read_temp(struct i2c_client *client, int *temp_mC)
int ret;
u8 temp;
- ret = rv3029_i2c_read_regs(client, RV3029_TEMP_PAGE, &temp, 1);
+ ret = rv3029_read_regs(client, RV3029_TEMP_PAGE, &temp, 1);
if (ret < 0)
return ret;
@@ -743,8 +725,8 @@ static void rv3029_hwmon_register(struct i2c_client *client)
&client->dev, client->name, client, rv3029_hwmon_groups);
if (IS_ERR(hwmon_dev)) {
dev_warn(&client->dev,
- "unable to register hwmon device %ld\n",
- PTR_ERR(hwmon_dev));
+ "unable to register hwmon device %ld\n",
+ PTR_ERR(hwmon_dev));
}
}
@@ -780,7 +762,7 @@ static int rv3029_probe(struct i2c_client *client,
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_EMUL))
return -ENODEV;
- rc = rv3029_i2c_get_sr(client, buf);
+ rc = rv3029_get_sr(client, buf);
if (rc < 0) {
dev_err(&client->dev, "reading status failed\n");
return rc;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 17:31:03 +0000