cy8c95x0_regmap_read_bits
ret = cy8c95x0_regmap_read_bits(chip, reg, i, bits, &read_val);
ret = cy8c95x0_regmap_read_bits(chip, CY8C95X0_INPUT, port, bit, ®_val);
ret = cy8c95x0_regmap_read_bits(chip, CY8C95X0_DIRECTION, port, bit, ®_val);
ret = cy8c95x0_regmap_read_bits(chip, reg, port, bit, ®_val);