linux-kernel - Re: [PATCH 14/14] mfd: twl6040: Constify struct regmap_config and reg

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Message-ID: <20150106171215.GT4081@atomide.com>
Date:	Tue, 6 Jan 2015 09:12:15 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org
Subject: Re: [PATCH 14/14] mfd: twl6040: Constify struct regmap_config and
 reg_default array

* Krzysztof Kozlowski <k.kozlowski@...sung.com> [150105 01:04]:
> The regmap_config struct may be const because it is not modified by the
> driver and regmap_init() accepts pointer to const. Make array of
> struct reg_default const as well.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

Acked-by: Tony Lindgren <tony@...mide.com>

> Cc: linux-omap@...r.kernel.org
> ---
>  drivers/mfd/twl6040.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
> index 9687645162ae..f71ee3dbc2a2 100644
> --- a/drivers/mfd/twl6040.c
> +++ b/drivers/mfd/twl6040.c
> @@ -44,7 +44,7 @@
>  #define VIBRACTRL_MEMBER(reg) ((reg == TWL6040_REG_VIBCTLL) ? 0 : 1)
>  #define TWL6040_NUM_SUPPLIES	(2)
>  
> -static struct reg_default twl6040_defaults[] = {
> +static const struct reg_default twl6040_defaults[] = {
>  	{ 0x01, 0x4B }, /* REG_ASICID	(ro) */
>  	{ 0x02, 0x00 }, /* REG_ASICREV	(ro) */
>  	{ 0x03, 0x00 }, /* REG_INTID	*/
> @@ -580,7 +580,7 @@ static bool twl6040_writeable_reg(struct device *dev, unsigned int reg)
>  	}
>  }
>  
> -static struct regmap_config twl6040_regmap_config = {
> +static const struct regmap_config twl6040_regmap_config = {
>  	.reg_bits = 8,
>  	.val_bits = 8,
>  
> -- 
> 1.9.1
> 
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