linux-kernel - [PATCH 3.18 37/84] ARM: mvebu: remove conflicting muxing on Armada 370 DB

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Date:	Tue,  6 Jan 2015 17:49:40 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Andrew Lunn <andrew@...n.ch>,
	Jason Cooper <jason@...edaemon.net>
Subject: [PATCH 3.18 37/84] ARM: mvebu: remove conflicting muxing on Armada 370 DB

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

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

From: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>

commit b4607572ef86b288a856b9df410ea593c5371dec upstream.

Back when audio was enabled, the muxing of some MPP pins was causing
problems. However, since commit fea038ed55ae ("ARM: mvebu: Add proper
pin muxing on the Armada 370 DB board"), those problematic MPP pins
have been assigned a proper muxing for the Ethernet interfaces. This
proper muxing is now conflicting with the hog pins muxing that had
been added as part of 249f3822509b ("ARM: mvebu: add audio support to
Armada 370 DB").

Therefore, this commit simply removes the hog pins muxing, which
solves a warning a boot time due to the conflicting muxing
requirements.

Fixes: fea038ed55ae ("ARM: mvebu: Add proper pin muxing on the Armada 370 DB board")
Cc: Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Acked-by: Andrew Lunn <andrew@...n.ch>
Link: https://lkml.kernel.org/r/1414512524-24466-5-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@...edaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/armada-370-db.dts |   24 ------------------------
 1 file changed, 24 deletions(-)

--- a/arch/arm/boot/dts/armada-370-db.dts
+++ b/arch/arm/boot/dts/armada-370-db.dts
@@ -102,30 +102,6 @@
 				broken-cd;
 			};
 
-			pinctrl {
-				/*
-				 * These pins might be muxed as I2S by
-				 * the bootloader, but it conflicts
-				 * with the real I2S pins that are
-				 * muxed using i2s_pins. We must mux
-				 * those pins to a function other than
-				 * I2S.
-				 */
-				pinctrl-0 = <&hog_pins1 &hog_pins2>;
-				pinctrl-names = "default";
-
-				hog_pins1: hog-pins1 {
-					marvell,pins = "mpp6",  "mpp8", "mpp10",
-						       "mpp12", "mpp13";
-					marvell,function = "gpio";
-				};
-
-				hog_pins2: hog-pins2 {
-					marvell,pins = "mpp5", "mpp7", "mpp9";
-					marvell,function = "gpo";
-				};
-			};
-
 			usb@...00 {
 				status = "okay";
 			};


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