linux-kernel - Re: [PATCH 1/2] dt: power: Add support for TI BQ24261 charger

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Message-ID: <CAJKOXPcDea5vjX+-tDg=7Z2kPrtsEABybA0+nEPGJDVwaYvb1Q@mail.gmail.com>
Date:	Fri, 30 Oct 2015 10:52:53 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Ramakrishna Pallala <ramakrishna.pallala@...el.com>
Cc:	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org, Sebastian Reichel <sre@...nel.org>,
	Jenny Tc <jenny.tc@...el.com>,
	Andreas Dannenberg <dannenberg@...com>
Subject: Re: [PATCH 1/2] dt: power: Add support for TI BQ24261 charger

2015-10-30 1:37 GMT+09:00 Ramakrishna Pallala <ramakrishna.pallala@...el.com>:
> This patch adds the device tree documentation for TI BQ24261 charger.
>
> Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@...el.com>
> Signed-off-by: Jenny TC <jenny.tc@...el.com>
> ---
>  .../devicetree/bindings/power/bq24261.txt          |   34 ++++++++++++++++++++
>  1 file changed, 34 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/bq24261.txt
>
> diff --git a/Documentation/devicetree/bindings/power/bq24261.txt b/Documentation/devicetree/bindings/power/bq24261.txt
> new file mode 100644
> index 0000000..e18f6dc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/bq24261.txt
> @@ -0,0 +1,34 @@
> +Binding for TI bq24261 Li-Ion Charger
> +
> +Required properties:
> +- compatible: Should contain one of the following:
> +    * "ti,bq24261"

Just: 'should be "ti,bq24261"'.

> +- reg: integer, i2c address of the device.
> +- ti,battery-regulation-voltage: integer, maximum charging voltage in uV.
> +- ti,charge-current: integer, maximum charging current in uA.
> +- ti,termination-current: integer, charge will be terminated when current in
> +    constant-voltage phase drops below this value (in uA).

Same as proposed extension of bq24257.txt. I like it.

> +
> +Optional properties:
> +- ti,max-charge-current: integer, maximum charging current (in uA);

I did not look at the code yet but description of property is exactly
the same as "ti,charge-current"... Two different properties with same
description?

> +- ti,max-charge-voltage: integer, maximum charging voltage (in uV);

Ditto.

> +- ti,min-charge-temperature: integer, minimum charging temperature (in DegC);
> +- ti,max-charge-temperature: integer, maximum charging temperature (in DegC).
> +- ti,thermal-sensing: integer, enable(1) or disable(0) JEITA thermal control.

You made it integer instead of boolean, so just to be sure - you
expect the possibility of overriding this property or extending it in
further devices?

Best regards,
Krzysztof
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