linux-kernel - Re: [PATCH v3 1/3] power: supply: Add support for the Qualcomm Battery Monitoring System

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Message-ID: <20180407175401.GA28199@arch.home>
Date:   Sat, 7 Apr 2018 18:54:01 +0100
From:   Craig Tatlor <ctatlor97@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>
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@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/3] power: supply: Add support for the Qualcomm
 Battery Monitoring System

On Sat, Apr 07, 2018 at 09:37:21AM -0700, Randy Dunlap wrote:
> On 04/07/2018 06:59 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
> > of the estimated capacity.
> > 
> > Signed-off-by: Craig Tatlor <ctatlor97@...il.com>
> > ---
> >  drivers/power/supply/Kconfig    |   9 +
> >  drivers/power/supply/Makefile   |   1 +
> >  drivers/power/supply/qcom_bms.c | 500 ++++++++++++++++++++++++++++++++
> >  3 files changed, 510 insertions(+)
> >  create mode 100644 drivers/power/supply/qcom_bms.c
> 
> > diff --git a/drivers/power/supply/qcom_bms.c b/drivers/power/supply/qcom_bms.c
> > new file mode 100644
> > index 000000000000..5aa6e906d1b9
> > --- /dev/null
> > +++ b/drivers/power/supply/qcom_bms.c
> > @@ -0,0 +1,500 @@
> 
> Hi,
Hey
> 
> > +static unsigned int between(int left, int right, int val)
> > +{
> > +	if (left <= val && val >= right)
> 
> maybe double-check those if() conditions?
> [or I need my morning coffee]
Yeah, they are wrong, will fix.
> 
> > +		return 1;
> > +
> > +	return 0;
> > +}
> 
> thanks,
> -- 
> ~Randy