linux-kernel - Re: [PATCH 1/2] regulator: fan53880: Fix missing n

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Message-ID: <7352b791a85b2ebaae50ae26c73b4fa0c224b467.camel@googlemail.com>
Date:   Mon, 17 May 2021 12:32:49 +0200
From:   Christoph Fritz <chf.fritz@...glemail.com>
To:     Axel Lin <axel.lin@...ics.com>, Mark Brown <broonie@...nel.org>
Cc:     Liam Girdwood <lgirdwood@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] regulator: fan53880: Fix missing n_voltages setting

Hi Axel,

 thanks for your input. Please see my comments below.

On Mon, 2021-05-17 at 08:48 +0800, Axel Lin wrote:
> Fixes: e6dea51e2d41 ("regulator: fan53880: Add initial support")
> Signed-off-by: Axel Lin <axel.lin@...ics.com>

Could you add a simple explanation? "Necessary for list_voltage() ops"?

> ---
>  drivers/regulator/fan53880.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/regulator/fan53880.c b/drivers/regulator/fan53880.c
> index e83eb4fb1876..e26a1420c6c5 100644
> --- a/drivers/regulator/fan53880.c
> +++ b/drivers/regulator/fan53880.c
> @@ -51,6 +51,7 @@ static const struct regulator_ops fan53880_ops = {
>  		      REGULATOR_LINEAR_RANGE(800000, 0xf, 0x73, 25000),	\
>  		},							\
>  		.n_linear_ranges = 2,					\
> +		.n_voltages = 0x74,					\

Could you add a tab and spaces to keep the alignment?

>  		.vsel_reg =	   FAN53880_LDO ## _num ## VOUT,	\
>  		.vsel_mask =	   0x7f,				\
>  		.enable_reg =	   FAN53880_ENABLE,			\
> @@ -76,6 +77,7 @@ static const struct regulator_desc
> fan53880_regulators[] = {
>  		      REGULATOR_LINEAR_RANGE(600000, 0x1f, 0xf7, 12500),
>  		},
>  		.n_linear_ranges = 2,
> +		.n_voltages = 0xf8,

dito

>  		.vsel_reg =	   FAN53880_BUCKVOUT,
>  		.vsel_mask =	   0x7f,
>  		.enable_reg =	   FAN53880_ENABLE,
> @@ -95,6 +97,7 @@ static const struct regulator_desc
> fan53880_regulators[] = {
>  		      REGULATOR_LINEAR_RANGE(3000000, 0x4, 0x70, 25000),
>  		},
>  		.n_linear_ranges = 2,
> +		.n_voltages = 0x71,

dito

>  		.vsel_reg =	   FAN53880_BOOSTVOUT,
>  		.vsel_mask =	   0x7f,
>  		.enable_reg =	   FAN53880_ENABLE_BOOST,