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| author | Heiner Kallweit <hkallweit1@gmail.com> | 2017-07-12 07:49:47 +0200 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-09-01 01:10:17 +0200 |
| commit | e553170a597e30ceb39bdf602f33421dc348017a (patch) | |
| tree | 3273e756f8eeab1baa2bad629d8bd4c4b6058440 /drivers/rtc/rtc-ds1307.c | |
| parent | 1efb98ba5ea57c4be5a1698f745abff382e17151 (diff) | |
| download | linux-e553170a597e30ceb39bdf602f33421dc348017a.tar.bz2 | |
rtc: ds1307: factor out offset to struct chip_desc
Factor out offset to struct chip_desc and remove it from struct ds1307.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc/rtc-ds1307.c')
| -rw-r--r-- | drivers/rtc/rtc-ds1307.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 57a194eca491..1179c8760de2 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -115,7 +115,6 @@ enum ds_type { struct ds1307 { - u8 offset; /* register's offset */ u8 regs[11]; u16 nvram_offset; struct nvmem_config nvmem_cfg; @@ -136,6 +135,7 @@ struct chip_desc { unsigned alarm:1; u16 nvram_offset; u16 nvram_size; + u8 offset; /* register's offset */ u8 century_reg; u8 century_enable_bit; u8 century_bit; @@ -208,6 +208,7 @@ static const struct chip_desc chips[last_ds_type] = { .trickle_charger_reg = 0x08, }, [ds_1388] = { + .offset = 1, .trickle_charger_reg = 0x0a, }, [ds_3231] = { @@ -221,6 +222,7 @@ static const struct chip_desc chips[last_ds_type] = { /* this is battery backed SRAM */ .nvram_offset = 0x20, .nvram_size = 4, /* 32bit (4 word x 8 bit) */ + .offset = 0x10, .irq_handler = rx8130_irq, .rtc_ops = &rx8130_rtc_ops, }, @@ -387,7 +389,7 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t) const struct chip_desc *chip = &chips[ds1307->type]; /* read the RTC date and time registers all at once */ - ret = regmap_bulk_read(ds1307->regmap, ds1307->offset, ds1307->regs, 7); + ret = regmap_bulk_read(ds1307->regmap, chip->offset, ds1307->regs, 7); if (ret) { dev_err(dev, "%s error %d\n", "read", ret); return ret; @@ -479,7 +481,7 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t) dev_dbg(dev, "%s: %7ph\n", "write", buf); - result = regmap_bulk_write(ds1307->regmap, ds1307->offset, buf, 7); + result = regmap_bulk_write(ds1307->regmap, chip->offset, buf, 7); if (result) { dev_err(dev, "%s error %d\n", "write", result); return result; @@ -1502,19 +1504,13 @@ static int ds1307_probe(struct i2c_client *client, DS1307_REG_HOUR << 4 | 0x08, hour); } break; - case rx_8130: - ds1307->offset = 0x10; /* Seconds starts at 0x10 */ - break; - case ds_1388: - ds1307->offset = 1; /* Seconds starts at 1 */ - break; default: break; } read_rtc: /* read RTC registers */ - err = regmap_bulk_read(ds1307->regmap, ds1307->offset, buf, 8); + err = regmap_bulk_read(ds1307->regmap, chip->offset, buf, 8); if (err) { dev_dbg(ds1307->dev, "read error %d\n", err); goto exit; @@ -1615,7 +1611,7 @@ read_rtc: tmp = 0; if (ds1307->regs[DS1307_REG_HOUR] & DS1307_BIT_PM) tmp += 12; - regmap_write(ds1307->regmap, ds1307->offset + DS1307_REG_HOUR, + regmap_write(ds1307->regmap, chip->offset + DS1307_REG_HOUR, bin2bcd(tmp)); } |