So after I've built the kernel to include the dmaengine and fsldma drivers, my driver is allowed to register its ISR via request_irq. However, if these drivers are not installed then request_irq fails in my driver. So it seems that there is some other initialization happening before request_irq is being called in fsldma and subsequently my driver. Does anyone know what this is?
Ron --- Kumar Gala <[EMAIL PROTECTED]> wrote: > The dmaengine provides a generic set of APIs w/a FSL dma backend. It > might be the case that your need of dma doesnt fit into the current > set of APIs. > > - k > > On Jun 12, 2008, at 3:04 PM, Ron Madrid wrote: > > > Well in that case wouldn't I need to use the fsldma driver? Or is > > dmaengine a generic dma driver? > > > > Ron > > --- Kumar Gala <[EMAIL PROTECTED]> wrote: > > > >> > >> On Jun 12, 2008, at 2:35 PM, Ron Madrid wrote: > >> > >>> I'm trying to write a driver that would make use of the DMA on the > >>> MPC8313. I'm attempting to > >>> register the interrupt with request_irq but it is not passing. Is > >>> there something that I need to > >>> do before I call request_irq, maybe in the dts or somewhere else? > >> > >> > >> any reason you aren't using the dmaengine driver? > >> > >> - k > >> > > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev