linux-kernel - Re: [PATCH] regulator: rn5t618: Constify regulator

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Message-ID: <6730c8bd06d5052439adaa2c66f68ea7@agner.ch>
Date:   Sat, 23 Mar 2019 09:34:13 +0100
From:   Stefan Agner <stefan@...er.ch>
To:     Axel Lin <axel.lin@...ics.com>
Cc:     Mark Brown <broonie@...nel.org>,
        Leonard Crestez <leonard.crestez@....com>,
        Pierre-Hugues Husson <phh@....me>,
        Beniamino Galvani <b.galvani@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regulator: rn5t618: Constify regulator_desc

On 20.03.2019 13:10, Axel Lin wrote:
> The regulator_desc never need to be modified, so define them as const as a
> hint to the compiler that they can go into .rodata.
> 
> Signed-off-by: Axel Lin <axel.lin@...ics.com>

Looks good to me.

Reviewed-by: Stefan Agner <stefan@...er.ch>

--
Stefan

> ---
>  drivers/regulator/rn5t618-regulator.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/regulator/rn5t618-regulator.c
> b/drivers/regulator/rn5t618-regulator.c
> index 790a4a73ea2c..a79c0c43b9f8 100644
> --- a/drivers/regulator/rn5t618-regulator.c
> +++ b/drivers/regulator/rn5t618-regulator.c
> @@ -46,7 +46,7 @@ static const struct regulator_ops rn5t618_reg_ops = {
>  		.vsel_mask	= (vmask),				\
>  	}
>  
> -static struct regulator_desc rn5t567_regulators[] = {
> +static const struct regulator_desc rn5t567_regulators[] = {
>  	/* DCDC */
>  	REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
>  	REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
> @@ -63,7 +63,7 @@ static struct regulator_desc rn5t567_regulators[] = {
>  	REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
>  };
>  
> -static struct regulator_desc rn5t618_regulators[] = {
> +static const struct regulator_desc rn5t618_regulators[] = {
>  	/* DCDC */
>  	REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
>  	REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
> @@ -79,7 +79,7 @@ static struct regulator_desc rn5t618_regulators[] = {
>  	REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
>  };
>  
> -static struct regulator_desc rc5t619_regulators[] = {
> +static const struct regulator_desc rc5t619_regulators[] = {
>  	/* DCDC */
>  	REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
>  	REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
> @@ -107,7 +107,7 @@ static int rn5t618_regulator_probe(struct
> platform_device *pdev)
>  	struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
>  	struct regulator_config config = { };
>  	struct regulator_dev *rdev;
> -	struct regulator_desc *regulators;
> +	const struct regulator_desc *regulators;
>  	int i;
>  	int num_regulators = 0;