linux-kernel - Re: [PATCH v5 2/4] power: supply: Add support for the Qualcomm Battery Monitoring System

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Message-ID: <e1a78fe3-593d-d39c-05b3-a1cc2b948e90@infradead.org>
Date:   Thu, 7 Jun 2018 12:08:20 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Craig Tatlor <ctatlor97@...il.com>
Cc:     linux-arm-msm@...r.kernel.org, Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 2/4] power: supply: Add support for the Qualcomm
 Battery Monitoring System

On 06/07/2018 11:12 AM, Craig Tatlor wrote:
> This patch adds a driver for the BMS (Battery Monitoring System)
> block of the PM8941 PMIC, it uses a lookup table defined in the
> device tree to generate a capacity from the BMS supplied OCV, it
> then ammends the coulomb counter to that to increase the accuracy

       amends

> of the estimated capacity.
> 
> Signed-off-by: Craig Tatlor <ctatlor97@...il.com>
> ---

> diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
> index 428b426842f4..6c354c37bc55 100644
> --- a/drivers/power/supply/Kconfig
> +++ b/drivers/power/supply/Kconfig
> @@ -82,6 +82,15 @@ config BATTERY_ACT8945A
>  	  Say Y here to enable support for power supply provided by
>  	  Active-semi ActivePath ACT8945A charger.
>  
> +config BATTERY_BMS
> +	tristate "Qualcomm Battery Monitoring System driver"
> +	depends on MFD_SPMI_PMIC || COMPILE_TEST
> +	depends on OF
> +	depends on REGMAP_SPMI

	select REGMAP_SPMI

I'm not a fan of "select", but it does not have a prompt string so it isn't
user settable (not directly; it can be set indirectly).
And all other uses of it in Kconfig files use "select".

> +	help
> +	  Say Y to include support for the Battery Monitoring hardware
> +	  found in some Qualcomm PM series PMICs.
> +
>  config BATTERY_CPCAP
>  	tristate "Motorola CPCAP PMIC battery driver"
>  	depends on MFD_CPCAP && IIO


-- 
~Randy