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Commit 7518dd9a authored by Alexandre Belloni's avatar Alexandre Belloni
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rtc: rv3029: drop rv3029_read_regs and rv3029_write_regs 

rv3029_read_regs and rv3029_write_regs are simply calling
regmap_bulk_{read,write}. Drop them and call regmap_{,bulk}_{read,write} as
appropriate.

Link: https://lore.kernel.org/r/20191214221022.622482-10-alexandre.belloni@bootlin.comSigned-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 8fd3d609
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Showing with 46 additions and 58 deletions
drivers/rtc/rtc-rv3029c2.c
View file @ 7518dd9a
......@@ -121,22 +121,6 @@ struct rv3029_data {
int irq;
};
static int rv3029_read_regs(struct device *dev, u8 reg, u8 *buf,
unsigned int len)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
return regmap_bulk_read(rv3029->regmap, reg, buf, len);
}
static int rv3029_write_regs(struct device *dev, u8 reg, u8 const buf[],
unsigned int len)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
return regmap_bulk_write(rv3029->regmap, reg, buf, len);
}
static int rv3029_eeprom_busywait(struct rv3029_data *rv3029)
{
unsigned int sr;
......@@ -158,19 +142,16 @@ static int rv3029_eeprom_busywait(struct rv3029_data *rv3029)
return ret;
}
static int rv3029_eeprom_exit(struct device *dev)
static int rv3029_eeprom_exit(struct rv3029_data *rv3029)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
/* Re-enable eeprom refresh */
return regmap_update_bits(rv3029->regmap, RV3029_ONOFF_CTRL,
RV3029_ONOFF_CTRL_EERE,
RV3029_ONOFF_CTRL_EERE);
}
static int rv3029_eeprom_enter(struct device *dev)
static int rv3029_eeprom_enter(struct rv3029_data *rv3029)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
unsigned int sr;
int ret;
......@@ -192,7 +173,7 @@ static int rv3029_eeprom_enter(struct device *dev)
if (ret < 0)
return ret;
if (sr & (RV3029_STATUS_VLOW1 | RV3029_STATUS_VLOW2)) {
dev_err(dev,
dev_err(rv3029->dev,
"Supply voltage is too low to safely access the EEPROM.\n");
return -ENODEV;
}
......@@ -207,47 +188,47 @@ static int rv3029_eeprom_enter(struct device *dev)
/* Wait for any previous eeprom accesses to finish. */
ret = rv3029_eeprom_busywait(rv3029);
if (ret < 0)
rv3029_eeprom_exit(dev);
rv3029_eeprom_exit(rv3029);
return ret;
}
static int rv3029_eeprom_read(struct device *dev, u8 reg,
static int rv3029_eeprom_read(struct rv3029_data *rv3029, u8 reg,
u8 buf[], size_t len)
{
int ret, err;
err = rv3029_eeprom_enter(dev);
err = rv3029_eeprom_enter(rv3029);
if (err < 0)
return err;
ret = rv3029_read_regs(dev, reg, buf, len);
ret = regmap_bulk_read(rv3029->regmap, reg, buf, len);
err = rv3029_eeprom_exit(dev);
err = rv3029_eeprom_exit(rv3029);
if (err < 0)
return err;
return ret;
}
static int rv3029_eeprom_write(struct device *dev, u8 reg,
static int rv3029_eeprom_write(struct rv3029_data *rv3029, u8 reg,
u8 const buf[], size_t len)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
unsigned int tmp;
int ret, err;
size_t i;
u8 tmp;
err = rv3029_eeprom_enter(dev);
err = rv3029_eeprom_enter(rv3029);
if (err < 0)
return err;
for (i = 0; i < len; i++, reg++) {
ret = rv3029_read_regs(dev, reg, &tmp, 1);
ret = regmap_read(rv3029->regmap, reg, &tmp);
if (ret < 0)
break;
if (tmp != buf[i]) {
ret = rv3029_write_regs(dev, reg, &buf[i], 1);
tmp = buf[i];
ret = regmap_write(rv3029->regmap, reg, tmp);
if (ret < 0)
break;
}
......@@ -256,25 +237,25 @@ static int rv3029_eeprom_write(struct device *dev, u8 reg,
break;
}
err = rv3029_eeprom_exit(dev);
err = rv3029_eeprom_exit(rv3029);
if (err < 0)
return err;
return ret;
}
static int rv3029_eeprom_update_bits(struct device *dev,
static int rv3029_eeprom_update_bits(struct rv3029_data *rv3029,
u8 reg, u8 mask, u8 set)
{
u8 buf;
int ret;
ret = rv3029_eeprom_read(dev, reg, &buf, 1);
ret = rv3029_eeprom_read(rv3029, reg, &buf, 1);
if (ret < 0)
return ret;
buf &= ~mask;
buf |= set & mask;
ret = rv3029_eeprom_write(dev, reg, &buf, 1);
ret = rv3029_eeprom_write(rv3029, reg, &buf, 1);
if (ret < 0)
return ret;
......@@ -286,20 +267,20 @@ static irqreturn_t rv3029_handle_irq(int irq, void *dev_id)
struct device *dev = dev_id;
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
struct mutex *lock = &rv3029->rtc->ops_lock;
unsigned int flags, controls;
unsigned long events = 0;
u8 flags, controls;
int ret;
mutex_lock(lock);
ret = rv3029_read_regs(dev, RV3029_IRQ_CTRL, &controls, 1);
ret = regmap_read(rv3029->regmap, RV3029_IRQ_CTRL, &controls);
if (ret) {
dev_warn(dev, "Read IRQ Control Register error %d\n", ret);
mutex_unlock(lock);
return IRQ_NONE;
}
ret = rv3029_read_regs(dev, RV3029_IRQ_FLAGS, &flags, 1);
ret = regmap_read(rv3029->regmap, RV3029_IRQ_FLAGS, &flags);
if (ret) {
dev_warn(dev, "Read IRQ Flags Register error %d\n", ret);
mutex_unlock(lock);
......@@ -314,8 +295,8 @@ static irqreturn_t rv3029_handle_irq(int irq, void *dev_id)
if (events) {
rtc_update_irq(rv3029->rtc, 1, events);
rv3029_write_regs(dev, RV3029_IRQ_FLAGS, &flags, 1);
rv3029_write_regs(dev, RV3029_IRQ_CTRL, &controls, 1);
regmap_write(rv3029->regmap, RV3029_IRQ_FLAGS, flags);
regmap_write(rv3029->regmap, RV3029_IRQ_CTRL, controls);
}
mutex_unlock(lock);
......@@ -324,10 +305,11 @@ static irqreturn_t rv3029_handle_irq(int irq, void *dev_id)
static int rv3029_read_time(struct device *dev, struct rtc_time *tm)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
int ret;
u8 regs[RV3029_WATCH_SECTION_LEN] = { 0, };
ret = rv3029_read_regs(dev, RV3029_W_SEC, regs,
ret = regmap_bulk_read(rv3029->regmap, RV3029_W_SEC, regs,
RV3029_WATCH_SECTION_LEN);
if (ret < 0) {
dev_err(dev, "%s: reading RTC section failed\n", __func__);
......@@ -360,24 +342,25 @@ static int rv3029_read_time(struct device *dev, struct rtc_time *tm)
static int rv3029_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
struct rtc_time *const tm = &alarm->time;
unsigned int controls, flags;
int ret;
u8 regs[8], controls, flags;
u8 regs[8];
ret = rv3029_read_regs(dev, RV3029_A_SC, regs,
ret = regmap_bulk_read(rv3029->regmap, RV3029_A_SC, regs,
RV3029_ALARM_SECTION_LEN);
if (ret < 0) {
dev_err(dev, "%s: reading alarm section failed\n", __func__);
return ret;
}
ret = rv3029_read_regs(dev, RV3029_IRQ_CTRL, &controls, 1);
ret = regmap_read(rv3029->regmap, RV3029_IRQ_CTRL, &controls);
if (ret) {
dev_err(dev, "Read IRQ Control Register error %d\n", ret);
return ret;
}
ret = rv3029_read_regs(dev, RV3029_IRQ_FLAGS, &flags, 1);
ret = regmap_read(rv3029->regmap, RV3029_IRQ_FLAGS, &flags);
if (ret < 0) {
dev_err(dev, "Read IRQ Flags Register error %d\n", ret);
return ret;
......@@ -408,6 +391,7 @@ static int rv3029_alarm_irq_enable(struct device *dev, unsigned int enable)
static int rv3029_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
struct rtc_time *const tm = &alarm->time;
int ret;
u8 regs[8];
......@@ -435,7 +419,7 @@ static int rv3029_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
| RV3029_A_AE_X;
/* Write the alarm */
ret = rv3029_write_regs(dev, RV3029_A_SC, regs,
ret = regmap_bulk_write(rv3029->regmap, RV3029_A_SC, regs,
RV3029_ALARM_SECTION_LEN);
if (ret < 0)
return ret;
......@@ -465,7 +449,7 @@ static int rv3029_set_time(struct device *dev, struct rtc_time *tm)
regs[RV3029_W_DAYS - RV3029_W_SEC] = bin2bcd(tm->tm_wday + 1) & 0x7;
regs[RV3029_W_YEARS - RV3029_W_SEC] = bin2bcd(tm->tm_year - 100);
ret = rv3029_write_regs(dev, RV3029_W_SEC, regs,
ret = regmap_bulk_write(rv3029->regmap, RV3029_W_SEC, regs,
RV3029_WATCH_SECTION_LEN);
if (ret < 0)
return ret;
......@@ -534,6 +518,7 @@ static const struct rv3029_trickle_tab_elem {
static void rv3029_trickle_config(struct device *dev)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
struct device_node *of_node = dev->of_node;
const struct rv3029_trickle_tab_elem *elem;
int i, err;
......@@ -560,7 +545,7 @@ static void rv3029_trickle_config(struct device *dev)
"Trickle charger enabled at %d ohms resistance.\n",
elem->r);
}
err = rv3029_eeprom_update_bits(dev, RV3029_CONTROL_E2P_EECTRL,
err = rv3029_eeprom_update_bits(rv3029, RV3029_CONTROL_E2P_EECTRL,
RV3029_TRICKLE_MASK,
trickle_set_bits);
if (err < 0)
......@@ -569,12 +554,12 @@ static void rv3029_trickle_config(struct device *dev)
#ifdef CONFIG_RTC_DRV_RV3029_HWMON
static int rv3029_read_temp(struct device *dev, int *temp_mC)
static int rv3029_read_temp(struct rv3029_data *rv3029, int *temp_mC)
{
unsigned int temp;
int ret;
u8 temp;
ret = rv3029_read_regs(dev, RV3029_TEMP_PAGE, &temp, 1);
ret = regmap_read(rv3029->regmap, RV3029_TEMP_PAGE, &temp);
if (ret < 0)
return ret;
......@@ -587,9 +572,10 @@ static ssize_t rv3029_hwmon_show_temp(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
int ret, temp_mC;
ret = rv3029_read_temp(dev, &temp_mC);
ret = rv3029_read_temp(rv3029, &temp_mC);
if (ret < 0)
return ret;
......@@ -601,9 +587,10 @@ static ssize_t rv3029_hwmon_set_update_interval(struct device *dev,
const char *buf,
size_t count)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
unsigned int th_set_bits = 0;
unsigned long interval_ms;
int ret;
u8 th_set_bits = 0;
ret = kstrtoul(buf, 10, &interval_ms);
if (ret < 0)
......@@ -614,7 +601,7 @@ static ssize_t rv3029_hwmon_set_update_interval(struct device *dev,
if (interval_ms >= 16000)
th_set_bits |= RV3029_EECTRL_THP;
}
ret = rv3029_eeprom_update_bits(dev, RV3029_CONTROL_E2P_EECTRL,
ret = rv3029_eeprom_update_bits(rv3029, RV3029_CONTROL_E2P_EECTRL,
RV3029_EECTRL_THE | RV3029_EECTRL_THP,
th_set_bits);
if (ret < 0)
......@@ -627,10 +614,11 @@ static ssize_t rv3029_hwmon_show_update_interval(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
int ret, interval_ms;
u8 eectrl;
ret = rv3029_eeprom_read(dev, RV3029_CONTROL_E2P_EECTRL,
ret = rv3029_eeprom_read(rv3029, RV3029_CONTROL_E2P_EECTRL,
&eectrl, 1);
if (ret < 0)
return ret;
......
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