linux-kernel - [PATCH] of: treat PCI config space as IORESOURCE

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Message-Id: <1401379426-9701-1-git-send-email-galak@codeaurora.org>
Date:	Thu, 29 May 2014 11:03:46 -0500
From:	Kumar Gala <galak@...eaurora.org>
To:	Rob Herring <robh+dt@...nel.org>,
	Grant Likely <grant.likely@...aro.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Liviu Dudau <liviu@...au.co.uk>,
	Kishon Vijay Abraham I <kishon@...com>
Subject: [PATCH] of: treat PCI config space as IORESOURCE_MEM type

If we have a PCI config space specified in something like a ranges
property we should treat it as memory type resource.

Signed-off-by: Kumar Gala <galak@...eaurora.org>
---
 drivers/of/address.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/address.c b/drivers/of/address.c
index cb4242a..4e7ee59 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -122,6 +122,9 @@ static unsigned int of_bus_pci_get_flags(const __be32 *addr)
 	u32 w = be32_to_cpup(addr);
 
 	switch((w >> 24) & 0x03) {
+	case 0x00: /* cfg space */
+		flags |= IORESOURCE_MEM;
+		break;
 	case 0x01:
 		flags |= IORESOURCE_IO;
 		break;
-- 
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