Re: [PATCH v2 14/15] charger: max14577: Configure battery-dependentsettings from DTS

[Lee Jones]

> Remove hard-coded values for:
>  - Fast Charge current,
>  - End Of Charge current,
>  - Fast Charge timer,
>  - Overvoltage Protection Threshold,
>  - Battery Constant Voltage,
> and use DTS to configure them. This allows using the max14577 charger
> driver with different batteries.
> 
> Now the charger driver requires valid configuration data from DTS. In
> case of wrong configuration data it fails during probe. Patch adds
> of_compatible to the charger mfd cell in MFD driver core.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
> Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Cc: Dmitry Eremin-Solenikov <dbaryshkov@xxxxxxxxx>
> Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
> Cc: Jenny Tc <jenny.tc@xxxxxxxxx>
> ---
>  drivers/mfd/max14577.c               |    5 +-
>  drivers/power/max14577_charger.c     |  234 +++++++++++++++++++++++++++++-----
>  include/linux/mfd/max14577-private.h |   10 ++
>  include/linux/mfd/max14577.h         |    8 ++
>  4 files changed, 227 insertions(+), 30 deletions(-)

<snip>

> diff --git a/include/linux/mfd/max14577-private.h b/include/linux/mfd/max14577-private.h
> index a8cd7de3526a..50cf70bec4d4 100644
> --- a/include/linux/mfd/max14577-private.h
> +++ b/include/linux/mfd/max14577-private.h
> @@ -269,6 +269,16 @@ enum maxim_muic_charger_type {
>  #define MAX77836_CHARGER_CURRENT_LIMIT_HIGH_STEP	 25000U
>  #define MAX77836_CHARGER_CURRENT_LIMIT_MAX		475000U
>  
> +/* MAX14577 charger End-Of-Charge current limits (as in MAXIM_CHGCTRL5 register), uA */

Too many chars. Didn't checkpatch.pl complain about this?

> +#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_MIN		50000U
> +#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_STEP		10000U
> +#define MAX14577_CHARGER_EOC_CURRENT_LIMIT_MAX		200000U
> +
> +/* MAX14577/MAX77836 Battery Constant Voltage (as in MAXIM_CHGCTRL3
> register), uV */

Same here

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