On Wed, Jan 05, 2011 at 11:34:20AM +0900, Tomoya MORINAGA wrote: > Hi Grant, > > On Wednesday, December 29, 2010 3:49 PM, Grant Likely wrote: > >As previously discussed on this list, I would like to see support for > >multiple bus instances implemented differently. Rather than storing > >the spi_master instances in an array in the pci device private data, > >the pci device should register a separate platform_device for each spi > >bus instance, and each of those bus instances should get bound to a > >topcliff_spi_bus driver which doesn't need to have any special > >knowledge about how many spi_master instances actually exist. > > > >Basically, the way it is implemented in this patch isn't taking > >advantage of the infrastructure and instance management provided by > >the driver model. > > I see. > I will modify like your suggestion. > Could you show the reference SPI driver using multi-instance ?
In an multi-instance scenario, the spi driver is just a plain-jane platform_driver. There isn't anything special about it. Instead, the pci_driver becomes responsible to register one or more platform devices for the child busses. Much like one of the multifunction devices in drivers/mfd. As far as examples go, drivers/mfd/timberdale.c seems reasonable, if a bit larger than what you need. g. > > Thanks, > --- > Tomoya MORINAGA > OKI SEMICONDUCTOR CO., LTD. > ------------------------------------------------------------------------------ Learn how Oracle Real Application Clusters (RAC) One Node allows customers to consolidate database storage, standardize their database environment, and, should the need arise, upgrade to a full multi-node Oracle RAC database without downtime or disruption http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
