Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [RFC v02 00/15] dmaengine: New 'universal' API for requesting channel | Date | Tue, 01 Dec 2015 15:24:40 +0100 |
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On Tuesday 01 December 2015 15:45:32 Peter Ujfalusi wrote: > >> static struct dma_filter_map da830_edma_map[] = { > >> DMA_FILTER_ENTRY("davinci-mcasp.0", "rx", EDMA_CTLR_CHAN(0, 0)), > >> DMA_FILTER_ENTRY("davinci-mcasp.0", "tx", EDMA_CTLR_CHAN(0, 1)), > >> DMA_FILTER_ENTRY("davinci-mcasp.1", "rx", EDMA_CTLR_CHAN(0, 2)), > >> DMA_FILTER_ENTRY("davinci-mcasp.1", "tx", EDMA_CTLR_CHAN(0, 3)), > >> DMA_FILTER_ENTRY("davinci-mcasp.2", "rx", EDMA_CTLR_CHAN(0, 4)), > >> DMA_FILTER_ENTRY("davinci-mcasp.2", "tx", EDMA_CTLR_CHAN(0, 5)), > >> DMA_FILTER_ENTRY("spi_davinci.0", "rx", EDMA_CTLR_CHAN(0, 14)), > >> DMA_FILTER_ENTRY("spi_davinci.0", "tx", EDMA_CTLR_CHAN(0, 15)), > >> DMA_FILTER_ENTRY("da830-mmc.0", "rx", EDMA_CTLR_CHAN(0, 16)), > >> DMA_FILTER_ENTRY("da830-mmc.0", "tx", EDMA_CTLR_CHAN(0, 17)), > >> DMA_FILTER_ENTRY("spi_davinci.1", "rx", EDMA_CTLR_CHAN(0, 18)), > >> DMA_FILTER_ENTRY("spi_davinci.1", "tx", EDMA_CTLR_CHAN(0, 19)), > > > > Does this ".2" and so prevent driver to use auto ID for platform devices? > > Yes, as all the infra around the traditional board files with platform_device > creation does. Ideally we could have 'phandle' pointing from this table to the > device in question (or other way around), but I'm not aware of anything we can > use.
I was thinking that we could use a pointer to the device structure, but if you have that, you can also just read the name from it.
Arnd
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