Re: [PATCH 1/3] mfd: max77693: Add defines for charger current control

From: Krzysztof Kozlowski
Date: Tue Sep 27 2016 - 04:07:50 EST


On Tue, Sep 27, 2016 at 01:31:08AM +0200, Wolfgang Wiedmeyer wrote:
> This prepares for an updated regulator and charger driver. The defines
> are needed to set the maximum input current and the fast charge
> current.
>
> Signed-off-by: Wolfgang Wiedmeyer <wolfgit@xxxxxxxxxxxx>

This shouldn't be separate patch, because:
1. You are touching later power and regulator so this patch should be
applied to one and then pulled by other... a lot of unneeded work.
2. It is difficult to find which new code is needed for which driver.

Simpler approach might work - when changing the regulator or psy driver,
just change the header as needed. Unless there are conflicts and both of
them need the same?

Best regards,
Krzysztof

> ---
> include/linux/mfd/max77693-private.h | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
> index 3c7a63b..ca18344 100644
> --- a/include/linux/mfd/max77693-private.h
> +++ b/include/linux/mfd/max77693-private.h
> @@ -222,6 +222,9 @@ enum max77693_charger_battery_state {
> #define CHG_CNFG_00_CHG_MASK 0x1
> #define CHG_CNFG_00_BUCK_MASK 0x4
>
> +/* MAX77693 CHG_CNFG_02 register */
> +#define CHG_CNFG_02_CC_MASK 0x3F
> +
> /* MAX77693_CHG_REG_CHG_CNFG_01 register */
> #define CHG_CNFG_01_FCHGTIME_SHIFT 0
> #define CHG_CNFG_01_CHGRSTRT_SHIFT 4
> @@ -258,6 +261,10 @@ enum max77693_charger_battery_state {
>
> /* MAX77693 CHG_CNFG_09 Register */
> #define CHG_CNFG_09_CHGIN_ILIM_MASK 0x7F
> +#define CHG_CNFG_09_CHGIN_ILIM_500_MAX 500000
> +#define CHG_CNFG_09_CHGIN_ILIM_500_MIN 470000
> +#define CHG_CNFG_09_CHGIN_ILIM_0_MAX 60000
> +#define CHG_CNFG_09_CHGIN_ILIM_0_MIN 0
>
> /* MAX77693 CHG_CTRL Register */
> #define SAFEOUT_CTRL_SAFEOUT1_MASK 0x3
> --
> 2.8.0.rc3
>