linux-kernel - Re: [PATCH 1/1] power: supply: Introduces bypass charging property

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20211104144444.rulz4br3xu4qc7yh@earth.universe>
Date:   Thu, 4 Nov 2021 15:44:44 +0100
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Ricardo Rivera-Matos <rriveram@...nsource.cirrus.com>
Cc:     patches@...nsource.cirrus.com, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] power: supply: Introduces bypass charging property

Hi,

On Thu, Nov 04, 2021 at 08:50:27AM -0500, Ricardo Rivera-Matos wrote:
> Adds a POWER_SUPPLY_CHARGE_TYPE_BYPASS option to the POWER_SUPPLY_PROP_CHARGE_TYPE
> property to facilitate bypass charging operation.
> 
> In bypass charging operation, the charger bypasses the charging path around the
> integrated converter allowing for a "smart" wall adaptor to perform the power
> conversion externally.
> 
> This operational mode is critical for the USB PPS standard of power adaptors and is
> becoming a common feature in modern charging ICs such as:
> 
> - BQ25980
> - BQ25975
> - BQ25960
> - LN8000
> - LN8410
> 
> Signed-off-by: Ricardo Rivera-Matos <rriveram@...nsource.cirrus.com>
> ---

Please always send API changes together with a user (e.g. in this
case you could update bq25980_charger driver to use this property).

-- Sebastian

>  drivers/power/supply/power_supply_sysfs.c | 1 +
>  include/linux/power_supply.h              | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
> index c3d7cbcd4fad..1368e13dc94b 100644
> --- a/drivers/power/supply/power_supply_sysfs.c
> +++ b/drivers/power/supply/power_supply_sysfs.c
> @@ -89,6 +89,7 @@ static const char * const POWER_SUPPLY_CHARGE_TYPE_TEXT[] = {
>  	[POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE]	= "Adaptive",
>  	[POWER_SUPPLY_CHARGE_TYPE_CUSTOM]	= "Custom",
>  	[POWER_SUPPLY_CHARGE_TYPE_LONGLIFE]	= "Long Life",
> +	[POWER_SUPPLY_CHARGE_TYPE_BYPASS]	= "Bypass",
>  };
>  
>  static const char * const POWER_SUPPLY_HEALTH_TEXT[] = {
> diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
> index 9ca1f120a211..9432234d7900 100644
> --- a/include/linux/power_supply.h
> +++ b/include/linux/power_supply.h
> @@ -49,6 +49,7 @@ enum {
>  	POWER_SUPPLY_CHARGE_TYPE_ADAPTIVE,	/* dynamically adjusted speed */
>  	POWER_SUPPLY_CHARGE_TYPE_CUSTOM,	/* use CHARGE_CONTROL_* props */
>  	POWER_SUPPLY_CHARGE_TYPE_LONGLIFE,	/* slow speed, longer life */
> +	POWER_SUPPLY_CHARGE_TYPE_BYPASS,	/* bypassing the charger */
>  };
>  
>  enum {
> -- 
> 2.25.1
> 

Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)