linux-kernel - Re: [PATCH v4 1/9] dt-bindings: battery: add new battery parameters

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Message-ID: <20200302220055.GA6779@bogus>
Date:   Mon, 2 Mar 2020 16:00:55 -0600
From:   Rob Herring <robh@...nel.org>
To:     Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc:     matti.vaittinen@...rohmeurope.com, mazziesaccount@...il.com,
        Sebastian Reichel <sre@...nel.org>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Markus Laine <markus.laine@...rohmeurope.com>,
        Mikko Mutanen <mikko.mutanen@...rohmeurope.com>
Subject: Re: [PATCH v4 1/9] dt-bindings: battery: add new battery parameters

On Tue, 25 Feb 2020 10:52:04 +0200, Matti Vaittinen wrote:
> Add:
> 
>  - trickle-charge-current-microamp:
> 
> Some chargers have 3 charging stages. First one when battery is almost
> empty is often called as trickle-charge. Last state when battery has been
> "woken up" is usually called as fast-charge. In addition to this some
> chargers have a 'middle state' which ROHM BD99954 data-sheet describes as
> pre-charge. Some batteries can benefit from this 3-phase charging
> [citation needed].
> 
> Introduce trickle-charge-current-microamp so that batteries can give
> charging current limit for all three states.
> 
>  - precharge-upper-limit-microvolt:
> 
> When battery voltage has reached certain limit we change from
> trickle-charge to next charging state (pre-charge for BD99954). Allow
> battery to specify this limit.
> 
>  - re-charge-voltage-microvolt:
> 
> Allow giving a battery specific voltage limit for chargers which can
> automatically re-start charging when battery has discharghed down to
> this limit.
> 
> - over-voltage-threshold-microvolt
> 
> Allow specifying voltage threshold after which the battery is assumed to
> be faulty.
> 
> Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
> ---
> 
> Changes from rfc-v3:
>   Fixed typo in commit message battry => battery
> 
>  Documentation/devicetree/bindings/power/supply/battery.txt | 6 ++++++
>  1 file changed, 6 insertions(+)
> 

Reviewed-by: Rob Herring <robh@...nel.org>