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Commit e553170a authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Alexandre Belloni
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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: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent 1efb98ba

drivers/rtc/rtc-ds1307.c

+7 −11
Original line number Diff line number Diff line
@@ -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 @@ static int ds1307_probe(struct i2c_client *client, 
			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));

	}