linux-kernel - Re: [PATCH v3 3/7] ARM: hisi: add dt

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Message-ID: <566E246F.2050304@huawei.com>
Date:	Mon, 14 Dec 2015 10:07:43 +0800
From:	xuejiancheng <xuejiancheng@...wei.com>
To:	Rob Herring <robh@...nel.org>
CC:	<mturquette@...libre.com>, <sboyd@...eaurora.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<linux@....linux.org.uk>, <khilman@...aro.org>, <arnd@...db.de>,
	<olof@...om.net>, <xuwei5@...ilicon.com>,
	<haojian.zhuang@...aro.org>, <zhangfei.gao@...aro.org>,
	<bintian.wang@...wei.com>, <linux-kernel@...r.kernel.org>,
	<linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <yanhaifeng@...ilicon.com>,
	<yanghongwei@...ilicon.com>, <suwenping@...ilicon.com>,
	<ml.yang@...ilicon.com>, <gaofei@...ilicon.com>,
	<zhangzhenxing@...ilicon.com>, <xuejiancheng@...ilicon.com>
Subject: Re: [PATCH v3 3/7] ARM: hisi: add dt_machine definition for Hi3519



On 2015/12/11 23:21, Rob Herring wrote:
> On Fri, Dec 11, 2015 at 03:45:17PM +0800, Jiancheng Xue wrote:
>> add dt_machine definition for hi3519.
>>
>> Signed-off-by: Jiancheng Xue <xuejiancheng@...wei.com>
>> ---
>>  arch/arm/mach-hisi/hisilicon.c | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>>
>> diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c
>> index 8cc6215..010d8a2 100644
>> --- a/arch/arm/mach-hisi/hisilicon.c
>> +++ b/arch/arm/mach-hisi/hisilicon.c
>> @@ -81,3 +81,12 @@ static const char *const hip01_compat[] __initconst = {
>>  DT_MACHINE_START(HIP01, "Hisilicon HIP01 (Flattened Device Tree)")
>>  	.dt_compat      = hip01_compat,
>>  MACHINE_END
>> +
>> +static const char *const hi3519_compat[] __initconst = {
>> +	"hisilicon,hi3519",
>> +	NULL,
>> +};
> 
> You should just have 1 mach desc with multiple compatible strings to 
> match against, not 1 mach desc per compatible string.

Yes, you're right. But Hi3519 is a soc in a new family. It doesn't belong to
any other existing mach descs. And more hi3519 compatible boards will be added
in this mach desc afterwards.
Can I do it like this now, and combine them at a proper time?

Or just add a more generic mach desc, then other socs like hix5hd2/hip01/hip04 can use this?
static const char *const hisilicon_compat[] __initconst = {
        "hisilicon,hi3519",
        NULL,
};

DT_MACHINE_START(HISILICON_DT, "Hisilicon")
        .dt_compat      = hisilicon_compat,
MACHINE_END



> Rob
> 
>> +
>> +DT_MACHINE_START(HI3519_DT, "Hisilicon Hi3519")
>> +	.dt_compat	= hi3519_compat,
>> +MACHINE_END
>> -- 
>> 1.9.1
>>
>> --
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> 
> .
> 

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