linux-kernel - Re: [PATCH v2 08/18] clk: at91: sckc: register slow

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Message-ID: <159558248412.3847286.6927039947131599378@swboyd.mtv.corp.google.com>
Date:   Fri, 24 Jul 2020 02:21:24 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Claudiu Beznea <claudiu.beznea@...rochip.com>,
        alexandre.belloni@...tlin.com, ludovic.desroches@...rochip.com,
        mturquette@...libre.com, nicolas.ferre@...rochip.com
Cc:     bbrezillon@...nel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: Re: [PATCH v2 08/18] clk: at91: sckc: register slow_rc with accuracy option

Quoting Claudiu Beznea (2020-07-22 00:38:16)
> Chapter 57.7.5 of SAM9X60 datasheet specifies that the maximum drift of
> this oscillator is +- 3KHz. Use that value and the formula at [1]
> or the calculator at [2] to compute the PPB value.
> 
> [1] https://www.everythingrf.com/rf-calculators/ppm-to-hz-calculator
> [2] https://www.changpuak.ch/electronics/ppm_to_Hz_converter.php
> 
> Fixes: 04bcc4275e601 ("clk: at91: sckc: add support for SAM9X60")
> Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
> ---

Applied to clk-next