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Date:   Wed, 17 May 2023 14:37:37 +0300
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Subject: Re: [PATCH v1] meson saradc: fix clock divider mask length
To:     Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        George Stark <gnstark@sberdevices.ru>
Cc:     jic23@kernel.org, lars@metafoo.de, neil.armstrong@linaro.org,
        khilman@baylibre.com, jbrunet@baylibre.com,
        andy.shevchenko@gmail.com, nuno.sa@analog.com,
        linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
        kernel@sberdevices.ru
References: <20230515210545.2100161-1-gnstark@sberdevices.ru>
 <CAFBinCCc+t7Ks6fqz38cVrufPRFdxFgC9Qp+JhcM1KfD6pupTg@mail.gmail.com>
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From:   Vyacheslav <adeep@lexina.in>
In-Reply-To: <CAFBinCCc+t7Ks6fqz38cVrufPRFdxFgC9Qp+JhcM1KfD6pupTg@mail.gmail.com>
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Hi, Martin,

On 16.05.2023 22:08, Martin Blumenstingl wrote:
> Hi George,
> 
> thank you for this patch!
> 
> On Mon, May 15, 2023 at 11:06 PM George Stark <gnstark@sberdevices.ru> wrote:
>>
>> From: George Stark <GNStark@sberdevices.ru>
>>
>> According to datasheets of supported meson SOCs
>> length of ADC_CLK_DIV field is 6 bits long
> I have a question about this sentence which doesn't affect this patch
> - it's only about managing expectations:
> Which SoC are you referring to?

I checked the 905x, 905x3, a113x datasheets - there is the same register 
with 6 bits for  ADC_CLK_DIV

> This divider is only relevant on older SoCs that predate GXBB (S905).
> To my knowledge all SoCs from GXBB onwards place the divider in the
> main or AO clock controller, so this bitmask is irrelevant there.
> 
>> Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs")
>> Signed-off-by: George Stark <GNStark@sberdevices.ru>
> Since my question above doesn't affect this patch:
> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> 
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-- 
Vyacheslav Bocharov