Messages in this thread | | | Date | Tue, 9 Jul 2013 09:05:41 +0200 | From | Sascha Hauer <> | Subject | Re: [PATCH] of: match the compatible in the order set by the dts file |
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On Fri, Jul 05, 2013 at 04:43:38PM +0800, Huang Shijie wrote: > If we set the uart compatible in the dts file like this: > ------------------------------------------------------ > compatible = "fsl,imx6q-uart", "fsl,imx21-uart"; > ------------------------------------------------------ > > and we set the uart compatible in the uart driver like this: > ------------------------------------------------------ > { .compatible = "fsl,imx1-uart", ... }, > { .compatible = "fsl,imx21-uart", ... }, > { .compatible = "fsl,imx6q-uart", ... }, > { /* sentinel */ } > ------------------------------------------------------ > > the current code will match the "fsl,imx21-uart" in the end. > > Of course, this is not what we want. We want it to match the "fsl,imx6q-uart". > > This patch rewrites the match code, and make it to check the compatible > in the order set by the DTS file.
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", ... },
Sascha
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