linux-kernel - Re: [PATCH v4 3/3] arm64: dts: mt8173: Add nor flash node

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Date:	Wed, 14 Oct 2015 09:07:49 +0800
From:	Daniel Kurtz <djkurtz@...omium.org>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	Bayi Cheng <bayi.cheng@...iatek.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	Mark Rutland <mark.rutland@....com>,
	"open list:OPEN FIRMWARE AND..." <devicetree@...r.kernel.org>,
	srv_heupstream <srv_heupstream@...iatek.com>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	linux-mediatek@...ts.infradead.org,
	Kumar Gala <galak@...eaurora.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	linux-mtd@...ts.infradead.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 3/3] arm64: dts: mt8173: Add nor flash node

Sergei,

On Tue, Oct 13, 2015 at 10:33 PM, Sergei Shtylyov
<sergei.shtylyov@...entembedded.com> wrote:
> Hello.
>
> On 10/13/2015 12:39 PM, Bayi Cheng wrote:
>
>> Add Mediatek nor flash node
>>
>> Signed-off-by: Bayi Cheng <bayi.cheng@...iatek.com>
>> ---
>>   arch/arm64/boot/dts/mediatek/mt8173.dtsi | 15 +++++++++++++++
>>   1 file changed, 15 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
>> b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
>> index d18ee42..385c2e4 100644
>> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
>> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
>> @@ -365,6 +365,21 @@
>>                         status = "disabled";
>>                 };
>>
>> +               nor_flash: spi@...0d000 {
>
>
>    I don't think this is a good label name for a SPI controller.

You think "spi" is not a good name for SPI controller?
Or you mean the label "nor_flash"?

Would you prefer:

  spi_nor_flash: spi@...0d000


>
>> +                       compatible = "mediatek,mt8173-nor";
>> +                       reg = <0 0x1100d000 0 0xe0>;
>> +                       clocks = <&pericfg CLK_PERI_SPI>,
>> +                                <&topckgen CLK_TOP_SPINFI_IFR_SEL>;
>> +                       clock-names = "spi", "sf";
>> +                       #address-cells = <1>;
>> +                       #size-cells = <0>;
>> +
>> +                       flash@0 {
>> +                               compatible = "jedec,spi-nor";
>> +                               reg = <0>;
>> +                       };
>> +               };
>> +
>>                 i2c3: i2c3@...10000 {
>
>
>    Grr, the name should be "i2c@...10000".

Don't worry.  This is already fixed in Matthias' tree:
  https://github.com/mbgg/linux-mediatek/commit/1ee35c05d9c67771d649f687e6f76e61e76eb779

-Dan

>
> [...]
>
> MBR, Sergei
>
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