于 2013年07月09日 15:51, Sascha Hauer 写道:
On Tue, Jul 09, 2013 at 03:46:34PM +0800, Huang Shijie wrote:
于 2013年07月09日 15:05, Sascha Hauer 写道:
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
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