linux-kernel - Re: [PATCH] power: supply: PCHG: Peripheral device charger

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Message-ID: <20201215075425.GJ5029@dell>
Date:   Tue, 15 Dec 2020 07:54:25 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Daisuke Nojiri <dnojiri@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, vpalatin@...omium.org,
        guenter@...omium.org, bleung@...omium.org,
        Alex Levin <levinale@...gle.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Gwendal Grignou <gwendal@...omium.org>,
        Mark Brown <broonie@...nel.org>,
        Pi-Hsun Shih <pihsun@...omium.org>,
        Prashant Malani <pmalani@...omium.org>,
        Sebastian Reichel <sre@...nel.org>,
        Vijay Hiremath <vijay.p.hiremath@...el.com>,
        Yu-Hsuan Hsu <yuhsuan@...omium.org>, linux-pm@...r.kernel.org
Subject: Re: [PATCH] power: supply: PCHG: Peripheral device charger

On Mon, 14 Dec 2020, Daisuke Nojiri wrote:

> This patch adds a driver for PCHG (Peripheral CHarGer). PCHG is a
> framework managing power supplies for peripheral devices.
> 
> This driver creates a sysfs node for each peripheral charge port:
> 
> 	/sys/class/power_supply/PCHGn
> 
> where <n> is the index of a charge port.
> 
> For example, when a stylus is connected to a NFC/WLC port, the node
> prints:
> 
> 	/sys/class/power_supply/PCHG0/
> 		capacity=50
> 		status=Charging
> 		type=Wireless
> 
> Signed-off-by: Daisuke Nojiri <dnojiri@...omium.org>
> ---
> 
>  drivers/mfd/cros_ec_dev.c                     |   1 +

This should be a separate patch.

>  drivers/power/supply/Kconfig                  |  10 +
>  drivers/power/supply/Makefile                 |   1 +
>  .../power/supply/cros_peripheral_charger.c    | 346 ++++++++++++++++++
>  .../linux/platform_data/cros_ec_commands.h    |  48 +++
>  5 files changed, 406 insertions(+)
>  create mode 100644 drivers/power/supply/cros_peripheral_charger.c
> 
> diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
> index 6135321592b76c..945565fc46a319 100644
> --- a/drivers/mfd/cros_ec_dev.c
> +++ b/drivers/mfd/cros_ec_dev.c
> @@ -85,6 +85,7 @@ static const struct mfd_cell cros_ec_sensorhub_cells[] = {
>  static const struct mfd_cell cros_usbpd_charger_cells[] = {
>  	{ .name = "cros-usbpd-charger", },
>  	{ .name = "cros-usbpd-logger", },
> +	{ .name = "cros-pchg", },
>  };

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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