From: Pavel Machek <pavel@denx.de>
To: Kirill Kapranov <kirill.kapranov@compulab.co.il>
Cc: a.zummo@towertech.it, alexandre.belloni@bootlin.com,
phdm@macqel.be, linux-rtc@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] rtc:abx80x: Enable xt digital calibration
Date: Fri, 9 Apr 2021 12:46:17 +0200 [thread overview]
Message-ID: <20210409104617.GB10988@amd> (raw)
In-Reply-To: <20210328210232.10395-5-kirill.kapranov@compulab.co.il>
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Hi!
> The XT digital calibration feature allows to improve the RTC accuracy,
> using a Distributed Digital Calibration function.
> See ch. 5.9.1 of AB08XX Series Ultra Low Power RTC IC User's Guide
> https://abracon.com/realtimeclock/AB08XX-Application-Manual.pdf
>
> Signed-off-by: Kirill Kapranov <kirill.kapranov@compulab.co.il>
> ---
> drivers/rtc/rtc-abx80x.c | 145 +++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 145 insertions(+)
>
> +static const int xt_freq_nom = 32768000; //Nominal XT frequency 32 kHz in mHz
C-style comment?
is it 32 kHz or 32.768 kHz?
> +{
> + int retval;
> + long Adj;
Adj -> adj.
> +
> +static DEVICE_ATTR_WO(xt_frequency);
You are adding new user interface, you sould add documentation.
Best regards,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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next prev parent reply other threads:[~2021-04-09 10:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-28 21:02 [PATCH 0/4] rtc:abx80x: Enable distributed digital calibration Kirill Kapranov
2021-03-28 21:02 ` [PATCH 1/4] dt-bindings: rtc: abracon,abx80x: Add sqw property Kirill Kapranov
2021-03-28 21:02 ` [PATCH 2/4] rtc: abx80x: Enable SQW output Kirill Kapranov
2021-03-29 0:34 ` kernel test robot
2021-03-29 6:19 ` Dan Carpenter
2021-03-30 15:28 ` Kirill Kapranov
2021-03-28 21:02 ` [PATCH 3/4] dt-bindings: rtc: abracon,abx80x: Add xt-frequency property Kirill Kapranov
2021-03-28 21:02 ` [PATCH 4/4] rtc:abx80x: Enable xt digital calibration Kirill Kapranov
2021-04-09 10:46 ` Pavel Machek [this message]
2021-04-09 16:56 ` Kirill Kapranov
2021-03-28 21:14 ` [PATCH 0/4] rtc:abx80x: Enable distributed " Alexandre Belloni
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