> -----Original Message----- > From: Felipe Balbi [mailto:felipe.balbi@xxxxxxxxxxxxxxx] > Sent: Wednesday, May 04, 2016 1:28 PM > To: Rajesh Bhagat <rajesh.bhagat@xxxxxxx>; linux-usb@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx; Yang-Leo Li > <leoyang.li@xxxxxxx>; Sriram Dash <sriram.dash@xxxxxxx>; Rajesh Bhagat > <rajesh.bhagat@xxxxxxx> > Subject: Re: [PATCH] drivers: usb: dwc3 : Configure DMA properties and ops from DT > > > Hi, > > Rajesh Bhagat <rajesh.bhagat@xxxxxxx> writes: > > On certain platforms (e.g. ARM64) the dma_ops needs to be explicitly > > set to be able to do DMA allocations, so use the of_dma_configure() > > helper to populate the dma properties and assign an appropriate dma_ops. > > > > Signed-off-by: Rajesh Bhagat <rajesh.bhagat@xxxxxxx> > > Reviewed-by: Yang-Leo Li <leoyang.li@xxxxxxx> Hi, > > Cool, nxp is also using dwc3 :-) C'mon Rajesh, send us a glue layer :) > I would surely be sending the glue layer soon :) > > diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index > > c679f63..4d5b783 100644 > > --- a/drivers/usb/dwc3/host.c > > +++ b/drivers/usb/dwc3/host.c > > @@ -17,6 +17,7 @@ > > > > #include <linux/platform_device.h> > > #include <linux/usb/xhci_pdriver.h> > > +#include <linux/of_device.h> > > > > #include "core.h" > > > > @@ -32,6 +33,9 @@ int dwc3_host_init(struct dwc3 *dwc) > > return -ENOMEM; > > } > > > > + if (IS_ENABLED(CONFIG_OF) && dwc->dev->of_node) > > + of_dma_configure(&xhci->dev, dwc->dev->of_node); > > okay, so we have a long discussion about this going on. You can catch up with it > starting here: > > http://marc.info/?i=1461612094-30939-1-git-send-email-grygorii.strashko@xxxxxx > > At least for now, this patch will be applied. We need to have a better solution for this, > one that helps not only DT platforms. > Thanks for information. > -- > balbi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
