spi_nor_read_data
return spi_nor_read_data(nor, from, len, buf);
return spi_nor_read_data(nor, from, round_down(len, PAGE_SIZE),
ret = spi_nor_read_data(nor, start, tmp_len, tmp_buf);
ret = spi_nor_read_data(nor, addr, len, buf);
ssize_t spi_nor_read_data(struct spi_nor *nor, loff_t from, size_t len,
ret = spi_nor_read_data(nor, addr, len, buf);
ret = spi_nor_read_data(nor, addr, len, buf);