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Re: [PATCH] regulator: of: removing two variables min_uV and max_uV

From Mark Brown <broonie@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH] regulator: of: removing two variables min_uV and max_uV
Date 2015-11-02 10:00 +0100
Message-ID <qqj86-3aX-7@gated-at.bofh.it> (permalink)
References <qpFX3-4ov-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Sat, Oct 31, 2015 at 08:31:31PM +0530, Saurabh Sengar wrote:

> -	min_uV = of_get_property(np, "regulator-min-microvolt", NULL);
> -	if (min_uV)
> -		constraints->min_uV = be32_to_cpu(*min_uV);

> +	if (!of_property_read_u32(np, "regulator-max-microvolt", &pval))
> +		constraints->max_uV = pval;

>  	/* Only one voltage?  Then make sure it's set. */
> -	if (min_uV && max_uV && constraints->min_uV == constraints->max_uV)
> +	if (constraints->min_uV == constraints->max_uV)
>  		constraints->apply_uV = true;

Your new code is not equivalent to the existing code.  The new code will
set apply_uV even if the DT properties are not present which will in
turn mean that we will end up attempting to apply a setting of 0V if
that happens which is not desirable.

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Thread

[PATCH] regulator: of: removing two variables min_uV and max_uV Saurabh Sengar <saurabh.truth@gmail.com> - 2015-10-31 16:10 +0100
  Re: [PATCH] regulator: of: removing two variables min_uV and max_uV Mark Brown <broonie@kernel.org> - 2015-11-02 10:00 +0100
    [PATCH v2] regulator: of: removing two variables min_uV and max_uV Saurabh Sengar <saurabh.truth@gmail.com> - 2015-11-02 10:50 +0100
      Re: [PATCH v2] regulator: of: removing two variables min_uV and  max_uV Mark Brown <broonie@kernel.org> - 2015-11-03 18:30 +0100

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