Re: [PATCH v3 11/14] gpio: regmap: Use regmap_test_bits() for single bit reads

[Andy Shevchenko]

On Thu, Aug 13, 2026 at 03:57:04PM +0200, Janani Sunil wrote:
> Use regmap_test_bits() when reading a single GPIO value from a normal
> register and when reading the direction bit.

...

>  	/* ensure we don't spoil any register cache with pin input values */
> -	if (gpio->reg_dat_base == gpio->reg_set_base)
> +	if (gpio->reg_dat_base == gpio->reg_set_base) {
>  		ret = regmap_read_bypassed(gpio->regmap, reg, &val);
> -	else
> -		ret = regmap_read(gpio->regmap, reg, &val);
> -	if (ret)
> -		return ret;
> +		if (ret)
> +			return ret;
>  
> -	return !!(val & mask);
> +		return !!(val & mask);
> +	}
> +
> +	return regmap_test_bits(gpio->regmap, reg, mask);

Wouldn't it look cleaner if written as

	if (gpio->reg_dat_base != gpio->reg_set_base)
		return regmap_test_bits(gpio->regmap, reg, mask);

	/* ensure we don't spoil any register cache with pin input values */
	ret = regmap_read_bypassed(gpio->regmap, reg, &val);
	if (ret)
		return ret;

	return !!(val & mask);

?

-- 
With Best Regards,
Andy Shevchenko