43  * i2c_setup_offset() - Set up a new message with a chip offset
45  * @chip:	Chip to use
46  * @offset:	Byte offset within chip
52 static int i2c_setup_offset(struct dm_i2c_chip *chip, uint offset,  in i2c_setup_offset()  argument
55 	int offset_len = chip->offset_len;  in i2c_setup_offset()
57 	msg->addr = chip->chip_addr;  in i2c_setup_offset()
58 	if (chip->chip_addr_offset_mask)  in i2c_setup_offset()
60 			chip->chip_addr_offset_mask;  in i2c_setup_offset()
61 	msg->flags = chip->flags & DM_I2C_CHIP_10BIT ? I2C_M_TEN : 0;  in i2c_setup_offset()
62 	msg->len = chip->offset_len;  in i2c_setup_offset()
77 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_read_bytewise()  local
86 		if (i2c_setup_offset(chip, offset + i, offset_buf, msg))  in i2c_read_bytewise()
106 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_write_bytewise()  local
115 		if (i2c_setup_offset(chip, offset + i, buf, msg))  in i2c_write_bytewise()
129 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in dm_i2c_read()  local
138 	if (chip->flags & DM_I2C_CHIP_RD_ADDRESS)  in dm_i2c_read()
141 	if (!i2c_setup_offset(chip, offset, offset_buf, ptr))  in dm_i2c_read()
146 		ptr->flags = chip->flags & DM_I2C_CHIP_10BIT ? I2C_M_TEN : 0;  in dm_i2c_read()
160 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in dm_i2c_write()  local
168 	if (chip->flags & DM_I2C_CHIP_WR_ADDRESS)  in dm_i2c_write()
191 		i2c_setup_offset(chip, offset, buf, msg);  in dm_i2c_write()
193 		memcpy(buf + chip->offset_len, buffer, len);  in dm_i2c_write()
203 		i2c_setup_offset(chip, offset, buf, msg);  in dm_i2c_write()
205 		memcpy(buf + chip->offset_len, buffer, len);  in dm_i2c_write()
244  * i2c_probe_chip() - probe for a chip on a bus
247  * @chip_addr:	Chip address to probe
248  * @flags:	Flags for the chip
249  * @return 0 if found, -ENOSYS if the driver is invalid, -EREMOTEIO if the chip
280 	struct dm_i2c_chip *chip;  in i2c_bind_driver()  local
295 	chip = dev_get_parent_platdata(dev);  in i2c_bind_driver()
296 	chip->chip_addr = chip_addr;  in i2c_bind_driver()
297 	chip->offset_len = offset_len;  in i2c_bind_driver()
326 		struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_get_chip()  local
329 		if (chip->chip_addr == (chip_addr &  in i2c_get_chip()
330 					~chip->chip_addr_offset_mask)) {  in i2c_get_chip()
355 	/* detect the presence of the chip on the bus */  in i2c_get_chip_for_busnum()
360 		debug("Cannot detect I2C chip %02x on bus %d\n", chip_addr,  in i2c_get_chip_for_busnum()
367 		debug("Cannot find I2C chip %02x on bus %d\n", chip_addr,  in i2c_get_chip_for_busnum()
382 	/* First probe that chip */  in dm_i2c_probe()
389 	/* The chip was found, see if we have a driver, and probe it */  in dm_i2c_probe()
431 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_set_chip_flags()  local
440 	chip->flags = flags;  in i2c_set_chip_flags()
447 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_get_chip_flags()  local
449 	*flagsp = chip->flags;  in i2c_get_chip_flags()
456 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_set_chip_offset_len()  local
460 	chip->offset_len = offset_len;  in i2c_set_chip_offset_len()
467 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_get_chip_offset_len()  local
469 	return chip->offset_len;  in i2c_get_chip_offset_len()
474 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_set_chip_addr_offset_mask()  local
476 	chip->chip_addr_offset_mask = mask;  in i2c_set_chip_addr_offset_mask()
483 	struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);  in i2c_get_chip_addr_offset_mask()  local
485 	return chip->chip_addr_offset_mask;  in i2c_get_chip_addr_offset_mask()
597 int i2c_chip_ofdata_to_platdata(struct udevice *dev, struct dm_i2c_chip *chip)  in i2c_chip_ofdata_to_platdata()  argument
601 	chip->offset_len = dev_read_u32_default(dev, "u-boot,i2c-offset-len",  in i2c_chip_ofdata_to_platdata()
603 	chip->flags = 0;  in i2c_chip_ofdata_to_platdata()
610 	chip->chip_addr = addr;  in i2c_chip_ofdata_to_platdata()