Commit b566e782 authored Apr 18, 2014 by Thomas Petazzoni Committed by Jason Cooper Apr 24, 2014

bus: mvebu-mbus: allow several windows with the same target/attribute

Having multiple windows with the same target and attribute is actually
legal, and can be useful for PCIe windows, when PCIe BARs have a size
that isn't a power of two, and we therefore need to create several
MBus windows to cover the PCIe BAR for a given PCIe interface.

Fixes: fddddb52 ('bus: introduce an Marvell EBU MBus driver')
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397823593-1932-7-git-send-email-thomas.petazzoni@free-electrons.com

Tested-by: Neil Greatorex <neil@fatboyfat.co.uk>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

parent 09752a12

drivers/bus/mvebu-mbus.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -223,12 +223,6 @@ static int mvebu_mbus_window_conflicts(struct mvebu_mbus_state *mbus,
		*/
		if ((u64)base < wend && end > wbase)
		return 0;

		/*
		* Check if target/attribute conflicts
		*/
		if (target == wtarget && attr == wattr)
		return 0;
		}

		return 1;