On 12/01/2015 07:00 PM, Tony Lindgren wrote: >> I see. The dm81xx basically am33xx/am43xx? > > Yeah similar to am33xx with different clocks and with a bunch of accelerators. > >> Actually I would prefer to use the dmaengine's event router framework and we >> do have support for the am33xx/am43xx type of crossbar already implemented. >> I'm going to resend the DTS series for am33xx/am43xx to convert them to use >> the new DT bindings along with the dma event router support: >> https://www.mail-archive.com/linux-omap%40vger.kernel.org/msg120828.html > > OK yes a dmaengine event router works too when available. Good to see > them as separate driver instances now :) Are only the dts changes missing > now? > > FYI, when we have separate interconnect driver instances, we don't want to > and cannot tweak registers outside the interconnect instance because of them > being in separate clock and/or power domains :p What does this mean in practice? We can not touch these registers? The DMA crossbar is a separate driver from the eDMA driver. > In any case, it seems there's no harm using pinctrl for evtmux on dm81xx > until the event router is available. It's currently only needed on the > t410 emmc that I'm aware of :) The AM33xx/AM43xx DMA crossbar support is in 4.4 already: 42dbdcc6bf96 dmaengine: ti-dma-crossbar: Add support for crossbar on AM33xx/AM43xx -- Péter -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
