diff options
Diffstat (limited to 'drivers/rtc/rtc-rx8581.c')
| -rw-r--r-- | drivers/rtc/rtc-rx8581.c | 85 |
1 files changed, 36 insertions, 49 deletions
diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c index b18c12887bdc..20c2dff01bae 100644 --- a/drivers/rtc/rtc-rx8581.c +++ b/drivers/rtc/rtc-rx8581.c @@ -52,11 +52,6 @@ #define RX8571_USER_RAM 0x10 #define RX8571_NVRAM_SIZE 0x10 -struct rx8581 { - struct regmap *regmap; - struct rtc_device *rtc; -}; - struct rx85x1_config { struct regmap_config regmap; unsigned int num_nvram; @@ -72,14 +67,14 @@ static int rx8581_rtc_read_time(struct device *dev, struct rtc_time *tm) unsigned char date[7]; unsigned int data; int err; - struct rx8581 *rx8581 = i2c_get_clientdata(client); + struct regmap *regmap = i2c_get_clientdata(client); /* First we ensure that the "update flag" is not set, we read the * time and date then re-read the "update flag". If the update flag * has been set, we know that the time has changed during the read so * we repeat the whole process again. */ - err = regmap_read(rx8581->regmap, RX8581_REG_FLAG, &data); + err = regmap_read(regmap, RX8581_REG_FLAG, &data); if (err < 0) return err; @@ -92,20 +87,20 @@ static int rx8581_rtc_read_time(struct device *dev, struct rtc_time *tm) do { /* If update flag set, clear it */ if (data & RX8581_FLAG_UF) { - err = regmap_write(rx8581->regmap, RX8581_REG_FLAG, - data & ~RX8581_FLAG_UF); + err = regmap_write(regmap, RX8581_REG_FLAG, + data & ~RX8581_FLAG_UF); if (err < 0) return err; } /* Now read time and date */ - err = regmap_bulk_read(rx8581->regmap, RX8581_REG_SC, date, + err = regmap_bulk_read(regmap, RX8581_REG_SC, date, sizeof(date)); if (err < 0) return err; /* Check flag register */ - err = regmap_read(rx8581->regmap, RX8581_REG_FLAG, &data); + err = regmap_read(regmap, RX8581_REG_FLAG, &data); if (err < 0) return err; } while (data & RX8581_FLAG_UF); @@ -137,7 +132,7 @@ static int rx8581_rtc_set_time(struct device *dev, struct rtc_time *tm) struct i2c_client *client = to_i2c_client(dev); int err; unsigned char buf[7]; - struct rx8581 *rx8581 = i2c_get_clientdata(client); + struct regmap *regmap = i2c_get_clientdata(client); dev_dbg(dev, "%s: secs=%d, mins=%d, hours=%d, " "mday=%d, mon=%d, year=%d, wday=%d\n", @@ -160,25 +155,23 @@ static int rx8581_rtc_set_time(struct device *dev, struct rtc_time *tm) buf[RX8581_REG_DW] = (0x1 << tm->tm_wday); /* Stop the clock */ - err = regmap_update_bits(rx8581->regmap, RX8581_REG_CTRL, + err = regmap_update_bits(regmap, RX8581_REG_CTRL, RX8581_CTRL_STOP, RX8581_CTRL_STOP); if (err < 0) return err; /* write register's data */ - err = regmap_bulk_write(rx8581->regmap, RX8581_REG_SC, - buf, sizeof(buf)); + err = regmap_bulk_write(regmap, RX8581_REG_SC, buf, sizeof(buf)); if (err < 0) return err; /* get VLF and clear it */ - err = regmap_update_bits(rx8581->regmap, RX8581_REG_FLAG, - RX8581_FLAG_VLF, 0); + err = regmap_update_bits(regmap, RX8581_REG_FLAG, RX8581_FLAG_VLF, 0); if (err < 0) return err; /* Restart the clock */ - return regmap_update_bits(rx8581->regmap, RX8581_REG_CTRL, + return regmap_update_bits(regmap, RX8581_REG_CTRL, RX8581_CTRL_STOP, 0); } @@ -190,29 +183,27 @@ static const struct rtc_class_ops rx8581_rtc_ops = { static int rx8571_nvram_read(void *priv, unsigned int offset, void *val, size_t bytes) { - struct rx8581 *rx8581 = priv; + struct regmap *regmap = priv; - return regmap_bulk_read(rx8581->regmap, RX8571_USER_RAM + offset, - val, bytes); + return regmap_bulk_read(regmap, RX8571_USER_RAM + offset, val, bytes); } static int rx8571_nvram_write(void *priv, unsigned int offset, void *val, size_t bytes) { - struct rx8581 *rx8581 = priv; + struct regmap *regmap = priv; - return regmap_bulk_write(rx8581->regmap, RX8571_USER_RAM + offset, - val, bytes); + return regmap_bulk_write(regmap, RX8571_USER_RAM + offset, val, bytes); } static int rx85x1_nvram_read(void *priv, unsigned int offset, void *val, size_t bytes) { - struct rx8581 *rx8581 = priv; + struct regmap *regmap = priv; unsigned int tmp_val; int ret; - ret = regmap_read(rx8581->regmap, RX8581_REG_RAM, &tmp_val); + ret = regmap_read(regmap, RX8581_REG_RAM, &tmp_val); (*(unsigned char *)val) = (unsigned char) tmp_val; return ret; @@ -221,12 +212,11 @@ static int rx85x1_nvram_read(void *priv, unsigned int offset, void *val, static int rx85x1_nvram_write(void *priv, unsigned int offset, void *val, size_t bytes) { - struct rx8581 *rx8581 = priv; + struct regmap *regmap = priv; unsigned char tmp_val; tmp_val = *((unsigned char *)val); - return regmap_write(rx8581->regmap, RX8581_REG_RAM, - (unsigned int)tmp_val); + return regmap_write(regmap, RX8581_REG_RAM, (unsigned int)tmp_val); } static const struct rx85x1_config rx8581_config = { @@ -249,9 +239,10 @@ static const struct rx85x1_config rx8571_config = { static int rx8581_probe(struct i2c_client *client) { - struct rx8581 *rx8581; + struct regmap *regmap; const struct rx85x1_config *config = &rx8581_config; const void *data = of_device_get_match_data(&client->dev); + struct rtc_device *rtc; static struct nvmem_config nvmem_cfg[] = { { .name = "rx85x1-", @@ -276,31 +267,27 @@ static int rx8581_probe(struct i2c_client *client) if (data) config = data; - rx8581 = devm_kzalloc(&client->dev, sizeof(struct rx8581), GFP_KERNEL); - if (!rx8581) - return -ENOMEM; - - i2c_set_clientdata(client, rx8581); + regmap = devm_regmap_init_i2c(client, &config->regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); - rx8581->regmap = devm_regmap_init_i2c(client, &config->regmap); - if (IS_ERR(rx8581->regmap)) - return PTR_ERR(rx8581->regmap); + i2c_set_clientdata(client, regmap); - rx8581->rtc = devm_rtc_allocate_device(&client->dev); - if (IS_ERR(rx8581->rtc)) - return PTR_ERR(rx8581->rtc); + rtc = devm_rtc_allocate_device(&client->dev); + if (IS_ERR(rtc)) + return PTR_ERR(rtc); - rx8581->rtc->ops = &rx8581_rtc_ops; - rx8581->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; - rx8581->rtc->range_max = RTC_TIMESTAMP_END_2099; - rx8581->rtc->start_secs = 0; - rx8581->rtc->set_start_time = true; + rtc->ops = &rx8581_rtc_ops; + rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; + rtc->range_max = RTC_TIMESTAMP_END_2099; + rtc->start_secs = 0; + rtc->set_start_time = true; - ret = devm_rtc_register_device(rx8581->rtc); + ret = devm_rtc_register_device(rtc); for (i = 0; i < config->num_nvram; i++) { - nvmem_cfg[i].priv = rx8581; - devm_rtc_nvmem_register(rx8581->rtc, &nvmem_cfg[i]); + nvmem_cfg[i].priv = regmap; + devm_rtc_nvmem_register(rtc, &nvmem_cfg[i]); } return ret; |