linux-kernel - [ 48/48] ARM: Kirkwood: handle mv88f6282 cpu in __kirkwood

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Date:	Tue, 18 Jun 2013 09:18:14 -0700
From:	Greg Kroah-Hartman <greg@...ah.com>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Nicolas Schichan <nschichan@...ebox.fr>,
	Jason Cooper <jason@...edaemon.net>
Subject: [ 48/48] ARM: Kirkwood: handle mv88f6282 cpu in __kirkwood_variant().

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

3.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nicolas Schichan <nschichan@...ebox.fr>

commit 4089fe95bfed295c8ad38251d5fe02b6b0ba684c upstream.

MPP_F6281_MASK would be previously be returned when on mv88f6282,
which would disallow some valid MPP configurations.

Commit 830f8b91 (arm: plat-orion: fix printing of "MPP config
unavailable on this hardware") made this problem visible as an invalid
MPP configuration is now correctly detected and not applied.

Signed-off-by: Nicolas Schichan <nschichan@...ebox.fr>
Signed-off-by: Jason Cooper <jason@...edaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/mach-kirkwood/mpp.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/arch/arm/mach-kirkwood/mpp.c
+++ b/arch/arm/mach-kirkwood/mpp.c
@@ -22,9 +22,10 @@ static unsigned int __init kirkwood_vari
 
 	kirkwood_pcie_id(&dev, &rev);
 
-	if ((dev == MV88F6281_DEV_ID && rev >= MV88F6281_REV_A0) ||
-	    (dev == MV88F6282_DEV_ID))
+	if (dev == MV88F6281_DEV_ID && rev >= MV88F6281_REV_A0)
 		return MPP_F6281_MASK;
+	if (dev == MV88F6282_DEV_ID)
+		return MPP_F6282_MASK;
 	if (dev == MV88F6192_DEV_ID && rev >= MV88F6192_REV_A0)
 		return MPP_F6192_MASK;
 	if (dev == MV88F6180_DEV_ID)


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