From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Ibrahim Tilki <Ibrahim.Tilki@analog.com>,
a.zummo@towertech.it, jdelvare@suse.com, linux@roeck-us.net,
robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
Zeynep Arslanbenzer <Zeynep.Arslanbenzer@analog.com>
Subject: Re: [PATCH v5 2/2] dt-bindings: rtc: add max313xx RTCs
Date: Tue, 4 Apr 2023 11:56:05 +0200 [thread overview]
Message-ID: <202304040956056c59af98@mail.local> (raw)
In-Reply-To: <0fd972bd-c5e7-65cc-6992-09c4c3e88f95@linaro.org>
On 04/04/2023 10:14:33+0200, Krzysztof Kozlowski wrote:
> On 04/04/2023 09:44, Alexandre Belloni wrote:
> >>
> >>> charging will always
> >>> enable a diode, select a resistor and then have or not an extra diode.
> >>> Figure2 of the MAX31329 datasheet is great.
> >>
> >> So the diode is in the max313xx? Then why enabling it is a property of
> >> DT? Either this should be inferred from compatible or is even a policy,
> >> not a DT property. Just because device has a register for something, is
> >> not an argument that "something" should be in DT.
> >
> > Well, it depends on the battery that is installed on the board so it
> > makes sense to have it in DT.
>
> OK, that would be a good reason, but I wonder why? Why choosing diode or
> not depends on the battery? Wouldn't you always want to have the diode?
>
It limits the maximum current used to charge the battery or supercap to
not exceed what is allowed.
--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2023-04-04 9:56 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-03 15:43 [PATCH v5 0/2] drivers: rtc: add max313xx series rtc driver Ibrahim Tilki
2023-04-03 15:43 ` [PATCH v5 1/2] " Ibrahim Tilki
2023-04-04 13:10 ` Krzysztof Kozlowski
2023-04-23 22:52 ` Chris Packham
2023-04-23 23:27 ` Chris Packham
2023-04-03 15:43 ` [PATCH v5 2/2] dt-bindings: rtc: add max313xx RTCs Ibrahim Tilki
2023-04-04 6:17 ` Krzysztof Kozlowski
2023-04-04 7:10 ` Alexandre Belloni
2023-04-04 7:21 ` Krzysztof Kozlowski
2023-04-04 7:44 ` Alexandre Belloni
2023-04-04 8:14 ` Krzysztof Kozlowski
2023-04-04 9:32 ` Tilki, Ibrahim
2023-04-04 9:56 ` Alexandre Belloni [this message]
2023-04-04 10:06 ` Krzysztof Kozlowski
2023-04-04 12:18 ` Alexandre Belloni
2023-04-04 9:26 ` Tilki, Ibrahim
2023-04-04 10:08 ` Krzysztof Kozlowski
2023-04-04 10:35 ` Tilki, Ibrahim
2023-04-04 12:26 ` Alexandre Belloni
2023-04-04 12:29 ` Alexandre Belloni
2023-04-04 13:02 ` Krzysztof Kozlowski
2023-04-04 14:50 ` Tilki, Ibrahim
2023-04-04 13:10 ` Krzysztof Kozlowski
2023-04-04 15:40 ` Tilki, Ibrahim
2023-04-05 6:16 ` Krzysztof Kozlowski
2024-01-26 2:22 ` [PATCH v5 0/2] drivers: rtc: add max313xx series rtc driver Chris Packham
2024-01-26 7:51 ` Nuno Sá
2024-01-29 3:28 ` Chris Packham
2024-01-29 7:55 ` Nuno Sá
2024-02-02 0:28 ` Chris Packham
2024-02-02 6:56 ` Nuno Sá
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