linux-kernel - Re: [PATCH v3] arm64: dts: add all hi6220 i2c nodes

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Message-ID: <565EB497.6080700@hisilicon.com>
Date:	Wed, 2 Dec 2015 17:06:31 +0800
From:	Xinwei Kong <kong.kongxinwei@...ilicon.com>
To:	Shawn Guo <shawnguo@...nel.org>
CC:	<robh+dt@...nel.org>, <mark.rutland@....com>,
	<devicetree@...r.kernel.org>, <linux-i2c@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <pawel.moll@....com>,
	<galak@...eaurora.org>, <catalin.marinas@....com>,
	<w.f@...wei.com>, <liguozhu@...ilicon.com>
Subject: Re: [PATCH v3] arm64: dts: add all hi6220 i2c nodes



On 2015/12/2 15:34, Shawn Guo wrote:
> On Wed, Dec 02, 2015 at 02:29:09PM +0800, Xinwei Kong wrote:
>> This patch adds all I2C nodes for the Hi6220 SoC. This hi6220 Soc
>> use this I2C IP of Synopsys Designware for HiKey board.
>>
>> Signed-off-by: Xinwei Kong <kong.kongxinwei@...ilicon.com>
>> ---
>>  arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 31 +++++++++++++++++++++++++++++++
>>  1 file changed, 31 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
>> index 82d2488..6eae673 100644
>> --- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
>> +++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
>> @@ -208,5 +208,36 @@
>>  			clock-names = "uartclk", "apb_pclk";
>>  			status = "disabled";
>>  		};
>> +
>> +		i2c0: i2c@...00000 {
>> +			compatible = "snps,designware-i2c";
>> +			reg = <0x0 0xf7100000 0x0 0x1000>;
>> +			interrupts = <0 44 4>;
>> +			i2c-sda-hold-time-ns = <300>;
>> +			pinctrl-names = "default";
>> +			pinctrl-0 = <&i2c0_pmx_func &i2c0_cfg_func>;
>> +			status = "disabled";
> 
> You got me wrong.  I was asking you to drop property 'clock-names' only,
> not 'clocks' together.  I do not think it works if you drop property
> 'clocks', because I see that dw_i2c_plat_probe() will fail if
> devm_clk_get() fails.  Did you test the patch before posting it out?

I am sorry that my Hikey board don't work well. I will fix my board and test
it.

Thank you very much.
xinwei

> 
> Shawn
> 
>> +		};
>> +
>> +		i2c1: i2c@...01000 {
>> +			compatible = "snps,designware-i2c";
>> +			reg = <0x0 0xf7101000 0x0 0x1000>;
>> +			interrupts = <0 45 4>;
>> +			i2c-sda-hold-time-ns = <300>;
>> +			pinctrl-names = "default";
>> +			pinctrl-0 = <&i2c1_pmx_func &i2c1_cfg_func>;
>> +			status = "disabled";
>> +		};
>> +
>> +		i2c2: i2c@...02000 {
>> +			compatible = "snps,designware-i2c";
>> +			reg = <0x0 0xf7102000 0x0 0x1000>;
>> +			interrupts = <0 46 4>;
>> +			i2c-sda-hold-time-ns = <300>;
>> +			pinctrl-names = "default";
>> +			pinctrl-0 = <&i2c2_pmx_func &i2c2_cfg_func>;
>> +			status = "disabled";
>> +		};
>> +
>>  	};
>>  };
>> -- 
>> 1.9.1
>>
>>
>>
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> .
> 

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