Messages in this thread | | | Date | Fri, 21 Oct 2016 10:38:27 -0700 | From | Stephen Boyd <> | Subject | Re: [RESEND PATCH] usb: chipidea: Configure DMA properties and ops from DT |
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On 10/21, Bjorn Andersson wrote: > hcd_alloc_coherent() and usb_alloc_coherent() ends up allocating coherent > memory on behalf of ci_hdrc driver. But as the ci_hdrc is instantiated manually > it will not have any dma_mem or dma_ops assigned, which makes the > dma_alloc_coherent() fail on some platforms (e.g. arm64). This patch solves > this by assigning the dma_mem and dma_ops based on the parent's DeviceTree > node. > > Cc: Stephen Boyd <sboyd@codeaurora.org> > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > --- > > Hi Peter, > > After (once more) debugging why USB doesn't work up on the 64-bit Qualcomm > systems I realized that we never concluded on this patch. Unfortunately I can't > find it in my mailbox either, so resending it to restart the discussion. >
I thought we were going to go down the route that Arnd has been pushing[1]? That should work, but I haven't tried it yet and there are some more fixes on top from Sriram. I think Sriram is taking over the patch now?
[1] https://patchwork.kernel.org/patch/9319527/
-- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
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