linux-kernel - Re: [PATCH v2 3/3] ARM: dts: rockchip: fixes the spi compatible for rk3036

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Message-ID: <3c1e174e-035b-78ae-b045-fe89990826da@rock-chips.com>
Date:	Fri, 20 May 2016 21:09:55 +0800
From:	Shawn Lin <shawn.lin@...k-chips.com>
To:	Heiko Stuebner <heiko@...ech.de>
Cc:	shawn.lin@...k-chips.com, Caesar Wang <wxt@...k-chips.com>,
	Mark Brown <broonie@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	linux-kernel@...r.kernel.org, Russell King <linux@...linux.org.uk>,
	linux-rockchip@...ts.infradead.org,
	Rob Herring <robh+dt@...nel.org>,
	Kumar Gala <galak@...eaurora.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 3/3] ARM: dts: rockchip: fixes the spi compatible for
 rk3036

On 2016/5/20 20:58, Heiko Stuebner wrote:
> Am Freitag, 20. Mai 2016, 20:35:53 schrieb Shawn Lin:
>> 在 2016/5/20 7:56, Caesar Wang 写道:
>>> That's seem the incorrect string to match the spi driver.
>>
>> Will it break the backward compatibility for some dtb if not
>> falling back to "rockchip,rockchip-spi" ?
>
> in what dtb did you see "rockchip,rockchip-spi"?

I'm not 100% sure, but I remember we toke this name on local
branch for rk3036 when we were developing this Soc.

> I.e. it isn't part of any current _mainline_ devicetree files.
>

Caesar, Could you check our develop-3.10 branch to see if it does
exist?

Anyway, "rockchip,rockchip-spi" isn't a part of mainline dt property.


>
> Heiko
>
>>
>>> Fixes commit f629fcfab2cd
>>> ("ARM: dts: rockchip: support the spi for rk3036")
>>>
>>> Signed-off-by: Caesar Wang <wxt@...k-chips.com>
>>> Cc: Heiko Stuebner <heiko@...ech.de>
>>> Cc: linux-rockchip@...ts.infradead.org
>>>
>>> ---
>>>
>>> Changes in v2: None
>>>
>>>  arch/arm/boot/dts/rk3036.dtsi | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm/boot/dts/rk3036.dtsi
>>> b/arch/arm/boot/dts/rk3036.dtsi index d0f4bb7..a30700a 100644
>>> --- a/arch/arm/boot/dts/rk3036.dtsi
>>> +++ b/arch/arm/boot/dts/rk3036.dtsi
>>> @@ -431,7 +431,7 @@
>>>
>>>  	};
>>>  	
>>>  	spi: spi@...74000 {
>>>
>>> -		compatible = "rockchip,rockchip-spi";
>>> +		compatible = "rockchip,rk3036-spi";
>>>
>>>  		reg = <0x20074000 0x1000>;
>>>  		interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
>>>  		clocks =<&cru PCLK_SPI>, <&cru SCLK_SPI>;
>
>


-- 
Best Regards
Shawn Lin