linux-kernel - Re: mfd: as3711: set regmap config reg counts properly

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Date:	Thu, 11 Feb 2016 17:07:33 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	"Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Guennadi Liakhovetski <g.liakhovetski@....de>
Subject: Re: mfd: as3711: set regmap config reg counts properly

On Sun, 31 Jan 2016, Maciej S. Szmigiero wrote:

> Regmap config max_register field should contain number of
> device last register, however num_reg_defaults_raw field
> should be set to register count instead
> (usually one register more than max_register).
> 
> as3711 driver had both of these fields set to the same value,
> fix this by introducing separate defines for max register
> number and total count of registers.
> 
> Signed-off-by: Maciej S. Szmigiero <mail@...iej.szmigiero.name>
> ---
>  drivers/mfd/as3711.c       | 4 ++--
>  include/linux/mfd/as3711.h | 3 ++-
>  2 files changed, 4 insertions(+), 3 deletions(-)

These 3 patches should really be submitted as a threaded set, so they
stay together in one's inbox.

Also, please submit patches using the subject line format expected by
the subsystem.

`git log --oneline -- <subsystem>` helps with this.

As you're a first time offender, I'll fix this for you this time.

Applied, thanks.

> diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c
> index 94d67a6e1eb7..09e1483b99bc 100644
> --- a/drivers/mfd/as3711.c
> +++ b/drivers/mfd/as3711.c
> @@ -108,8 +108,8 @@ static const struct regmap_config as3711_regmap_config = {
>  	.volatile_reg = as3711_volatile_reg,
>  	.readable_reg = as3711_readable_reg,
>  	.precious_reg = as3711_precious_reg,
> -	.max_register = AS3711_MAX_REGS,
> -	.num_reg_defaults_raw = AS3711_MAX_REGS,
> +	.max_register = AS3711_MAX_REG,
> +	.num_reg_defaults_raw = AS3711_NUM_REGS,
>  	.cache_type = REGCACHE_RBTREE,
>  };
>  
> diff --git a/include/linux/mfd/as3711.h b/include/linux/mfd/as3711.h
> index 38452ce1e892..34cc85864be5 100644
> --- a/include/linux/mfd/as3711.h
> +++ b/include/linux/mfd/as3711.h
> @@ -51,7 +51,8 @@
>  #define AS3711_ASIC_ID_1		0x90
>  #define AS3711_ASIC_ID_2		0x91
>  
> -#define AS3711_MAX_REGS			0x92
> +#define AS3711_MAX_REG		AS3711_ASIC_ID_2
> +#define AS3711_NUM_REGS		(AS3711_MAX_REG + 1)
>  
>  /* Regulators */
>  enum {

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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