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

From: Randy Dunlap
Date: Sat Apr 07 2018 - 12:37:44 EST


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@xxxxxxxxx>
> ---
> 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,

> +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]

> + return 1;
> +
> + return 0;
> +}

thanks,
--
~Randy