On Tue, Nov 21, 2017 at 12:18:09PM -0500, Adam Wallis wrote: > Certain systems may run with CPUs at a very slow frequency. This > patch adds a quirk bit that can be used to relax certain timings, etc. > > This quirk might be needed for other fields in the future, but > initially, it will be used only on the IRQ control register to allow > firmare to control the value of the register. This can prevent an s/firmare/firmware/ By firmware control, you mean the register is initialized on boot and then not touched by the kernel? What if the XHCI block is reset? Not sure if that's possible. > "interrupt storm" effect on certain systems. So now we have 2 ways to deal with this? The existing MediaTek quirk and now this one. I think you should change the existing quirk to a value and set the value based on compatible strings. > Signed-off-by: Adam Wallis <awallis@xxxxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/usb/usb-xhci.txt | 1 + > drivers/usb/host/xhci.c | 25 +++++++++++++++------- > drivers/usb/host/xhci.h | 1 + > 3 files changed, 19 insertions(+), 8 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
