On Mon, Jul 15, 2013 at 02:40:39PM +0800, Robin Gong wrote: > > > +static const struct of_device_id pfuze_dt_ids[] = { > > > + { .compatible = "fsl,pfuze100", .data = (void *)PFUZE_ID_PFUZE100}, > > > > You do not use .data in the driver at all, and can just drop it. > > > good catch. .driver_data of i2c_device_id and .data of of_device_id are two > different ways to let driver know which chip used now by DTS or not. I should > use them to know which chip used now ,although I can know by reading chipid > register. >
If you can figure out the chip ID from hardware, it should be used as the preference over compatible and .driver_data. Shawn _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss