From: Rob Herring <robh@kernel.org>
To: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: Sebastian Reichel <sre@kernel.org>,
Emil Velikov <emil.velikov@collabora.com>,
Linus Walleij <linus.walleij@linaro.org>,
Daniel Mack <daniel@zonque.org>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
Robert Jarzmik <robert.jarzmik@free.fr>,
Russell King <linux@armlinux.org.uk>,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel@collabora.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCHv2 3/6] power: supply: gpio-charger: add charge-current-limit feature
Date: Mon, 15 Jun 2020 11:58:44 -0600 [thread overview]
Message-ID: <20200615175844.GA2032047@bogus> (raw)
In-Reply-To: <20200605224403.181015-4-sebastian.reichel@collabora.com>
On Sat, Jun 06, 2020 at 12:44:00AM +0200, Sebastian Reichel wrote:
> Add new charge-current-limit feature to gpio-charger.
>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
> .../bindings/power/supply/gpio-charger.yaml | 31 ++++
> drivers/power/supply/gpio-charger.c | 140 ++++++++++++++++++
> 2 files changed, 171 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml b/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml
> index 30eabbb14ef3..e11cfdc68a51 100644
> --- a/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml
> +++ b/Documentation/devicetree/bindings/power/supply/gpio-charger.yaml
> @@ -39,6 +39,25 @@ properties:
> maxItems: 1
> description: GPIO indicating the charging status
>
> + charge-current-limit-gpios:
> + minItems: 1
> + maxItems: 32
> + description: GPIOs used for current limiting
> +
> + charge-current-limit-mapping:
> + description: List of touples with current in uA and a GPIO bitmap (in
s/touples/tuples/
> + this order). The touples must be provided in descending order of the
and here.
> + current limit.
> + $ref: /schemas/types.yaml#/definitions/uint32-matrix
> + items:
> + items:
> + - description:
> + Current limit in uA
> + - description:
> + Encoded GPIO setting. Bit 0 represents last GPIO from the
> + charge-current-limit-gpios property. Bit 1 second to last
> + GPIO and so on.
Seems a bit odd that bit N doesn't represent index N of the gpios.
> +
> required:
> - compatible
>
> @@ -47,6 +66,12 @@ anyOf:
> - gpios
> - required:
> - charge-status-gpios
> + - required:
> + - charge-current-limit-gpios
> +
> +dependencies:
> + charge-current-limit-gpios: [ charge-current-limit-mapping ]
> + charge-current-limit-mapping: [ charge-current-limit-gpios ]
>
> additionalProperties: false
>
> @@ -60,4 +85,10 @@ examples:
>
> gpios = <&gpd 28 GPIO_ACTIVE_LOW>;
> charge-status-gpios = <&gpc 27 GPIO_ACTIVE_LOW>;
> +
> + charge-current-limit-gpios = <&gpioA 11 GPIO_ACTIVE_HIGH>,
> + <&gpioA 12 GPIO_ACTIVE_HIGH>;
> + charge-current-limit-mapping = <2500000 0x00>, // 2.5 A => both GPIOs low
> + <700000 0x01>, // 700 mA => GPIO A.12 high
> + <0 0x02>; // 0 mA => GPIO A.11 high
> };
next prev parent reply other threads:[~2020-06-15 17:58 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-05 22:43 [PATCHv2 0/6] misc. gpio-charger patches Sebastian Reichel
2020-06-05 22:43 ` [PATCHv2 1/6] dt-bindings: power: supply: gpio-charger: convert to yaml Sebastian Reichel
2020-06-10 9:41 ` Linus Walleij
2020-06-15 17:49 ` Rob Herring
2020-06-19 16:29 ` Sebastian Reichel
2020-06-05 22:43 ` [PATCHv2 2/6] power: supply: gpio-charger: Make gpios optional Sebastian Reichel
2020-06-10 9:44 ` Linus Walleij
2020-06-15 17:50 ` Rob Herring
2020-06-19 16:29 ` Sebastian Reichel
2020-06-05 22:44 ` [PATCHv2 3/6] power: supply: gpio-charger: add charge-current-limit feature Sebastian Reichel
2020-06-10 9:46 ` Linus Walleij
2020-06-15 17:58 ` Rob Herring [this message]
2020-06-19 16:28 ` Sebastian Reichel
2020-06-05 22:44 ` [PATCHv2 4/6] ARM: pxa: Use GPIO descriptor for gpio-charger Sebastian Reichel
2020-06-10 9:52 ` Linus Walleij
2020-06-05 22:44 ` [PATCHv2 5/6] ARM: sa1100: " Sebastian Reichel
2020-06-10 9:54 ` Linus Walleij
2020-06-05 22:44 ` [PATCHv2 6/6] power: supply: gpio-charger: drop legacy GPIO support Sebastian Reichel
2020-06-10 9:55 ` Linus Walleij
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