Subject: [PATCH] of: match the compatible in the order set by the dts file

From: [email-masked] (Huang Shijie)
Date: Tue, 9 Jul 2013 16:10:53 +0800

? 2013?07?09? 15:51, Sascha Hauer ??:
> On Tue, Jul 09, 2013 at 03:46:34PM +0800, Huang Shijie wrote:
>> ? 2013?07?09? 15:05, Sascha Hauer ??:
>>> Why don't you set the matching order in the driver the way you want it
>>> to be, i.e.:
>>>
>>> 	{ .compatible = "fsl,imx6q-uart", ... },
>>> 	{ .compatible = "fsl,imx21-uart", ... },
>>> 	{ .compatible = "fsl,imx1-uart", ... },
>>>
>> yes. i can set it like this.
>>
>> but this method looks like a ugly workaround.
> If a driver has different ways of supporting a single device, then
> putting the preferred or most feature rich on top doesn't look very ugly
> to me.
this method makes it much _coupled_ between the driver and the dts file.

IMHO, it's an unnecessary _burden_ to the driver programmer:
    he should puts the most feature compatible on the top.

it's much graceful if we let the driver programmer be transparent about 
this.

thanks
Huang Shijie