Christoph Hellwig 7b81cb6bdd usb: add a HCD_DMA flag instead of guestimating DMA capabilities ... The usb core is the only major place in the kernel that checks for a non-NULL device dma_mask to see if a device is DMA capable. This is generally a bad idea, as all major busses always set up a DMA mask, even if the device is not DMA capable - in fact bus layers like PCI can't even know if a device is DMA capable at enumeration time. This leads to lots of workaround in HCD drivers, and also prevented us from setting up a DMA mask for platform devices by default last time we tried. Replace this guess with an explicit HCD_DMA that is set by drivers that appear to have DMA support. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20190816062435.881-4-hch@lst.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-08-21 10:03:35 -07:00
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isp1760-core.c	usb: add a HCD_DMA flag instead of guestimating DMA capabilities	2019-08-21 10:03:35 -07:00
isp1760-core.h
isp1760-hcd.c	usb: isp1760-hcd: Fix fall-through annotations	2019-05-01 18:13:52 +02:00
isp1760-hcd.h
isp1760-if.c	usb: add a HCD_DMA flag instead of guestimating DMA capabilities	2019-08-21 10:03:35 -07:00
isp1760-regs.h
isp1760-udc.c	usb: isp1760: Use kasprintf	2018-03-09 09:40:21 -08:00
isp1760-udc.h
Kconfig	USB: add missing SPDX lines to Kconfig and Makefiles	2019-01-22 09:08:17 +01:00
Makefile	USB: add SPDX identifiers to all remaining Makefiles	2017-11-07 15:53:48 +01:00