linux-kernel - Re: [PATCH v5 2/2] ARM: dts: add property for maximum ADC clock frequencies

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Date:	Mon, 03 Aug 2015 14:22:30 +0200
From:	Stefan Agner <stefan@...er.ch>
To:	shawn.guo@...aro.org
Cc:	Jonathan Cameron <jic23@...nel.org>, kernel@...gutronix.de,
	knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	B38611@...escale.com, maitysanchayan@...il.com,
	devicetree@...r.kernel.org, linux-iio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 2/2] ARM: dts: add property for maximum ADC clock
 frequencies

Hi Shawn,

I guess this will go through your tree? Haven't seen it appear on imx/dt
so far...

--
Stefan

On 2015-06-07 18:56, Jonathan Cameron wrote:
> On 27/05/15 13:47, Stefan Agner wrote:
>> The ADC clock frequency is limited depending on modes used. Add
>> device tree property which allow to set the mode used and the
>> maximum frequency ratings for the instance. These allows to
>> set the ADC clock to a frequency which is within specification
>> according to the actual mode used.
>>
>> Acked-by: Fugang Duan <B38611@...escale.com>
>> Signed-off-by: Stefan Agner <stefan@...er.ch>
> I'm happy to take this via IIO if people want me to, otherwise give
> it's connection to the previous patch that I just applied,
> 
> Acked-by: Jonathan Cameron <jic23@...nel.org>
> 
>> ---
>>  arch/arm/boot/dts/vfxxx.dtsi | 4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/vfxxx.dtsi b/arch/arm/boot/dts/vfxxx.dtsi
>> index a29c7ce..c6609bd 100644
>> --- a/arch/arm/boot/dts/vfxxx.dtsi
>> +++ b/arch/arm/boot/dts/vfxxx.dtsi
>> @@ -189,6 +189,8 @@
>>  				clocks = <&clks VF610_CLK_ADC0>;
>>  				clock-names = "adc";
>>  				status = "disabled";
>> +				fsl,adck-max-frequency = <30000000>, <40000000>,
>> +							<20000000>;
>>  			};
>>
>>  			wdoga5: wdog@...3e000 {
>> @@ -387,6 +389,8 @@
>>  				clocks = <&clks VF610_CLK_ADC1>;
>>  				clock-names = "adc";
>>  				status = "disabled";
>> +				fsl,adck-max-frequency = <30000000>, <40000000>,
>> +							<20000000>;
>>  			};
>>
>>  			esdhc1: esdhc@...b2000 {
>>

--
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