linux-kernel - [PATCH] [41/50] ARM: pxa: fix PGSR register address calculation

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Date:	Thu, 28 Jul 2011 16:44:46 -0700 (PDT)
From:	Andi Kleen <andi@...stfloor.org>
To:	lost.distance@...oo.com, eric.y.miao@...il.com, ak@...ux.intel.com,
	linux-kernel@...r.kernel.org, stable@...nel.org,
	tim.bird@...sony.com
Subject: [PATCH] [41/50] ARM: pxa: fix PGSR register address calculation

2.6.35-longterm review patch.  If anyone has any objections, please let me know.

------------------
From: Paul Parsons <lost.distance@...oo.com>

[ upstream commit beb0c9b056b1c23d2029b46a425362e9ccbeba01 ]

The file mfp-pxa2xx.c defines a macro, PGSR(), which translates a gpio
bank number to a PGSR register address. The function pxa2xx_mfp_suspend()
erroneously passed in a gpio number instead of a gpio bank number.

Signed-off-by: Paul Parsons <lost.distance@...oo.com>
Cc: stable@...nel.org
Signed-off-by: Eric Miao <eric.y.miao@...il.com>
Signed-off-by: Andi Kleen <ak@...ux.intel.com>

Index: linux-2.6.35.y/arch/arm/mach-pxa/mfp-pxa2xx.c
===================================================================
--- linux-2.6.35.y.orig/arch/arm/mach-pxa/mfp-pxa2xx.c
+++ linux-2.6.35.y/arch/arm/mach-pxa/mfp-pxa2xx.c
@@ -347,9 +347,9 @@ static int pxa2xx_mfp_suspend(struct sys
 		if ((gpio_desc[i].config & MFP_LPM_KEEP_OUTPUT) &&
 		    (GPDR(i) & GPIO_bit(i))) {
 			if (GPLR(i) & GPIO_bit(i))
-				PGSR(i) |= GPIO_bit(i);
+				PGSR(gpio_to_bank(i)) |= GPIO_bit(i);
 			else
-				PGSR(i) &= ~GPIO_bit(i);
+				PGSR(gpio_to_bank(i)) &= ~GPIO_bit(i);
 		}
 	}
 
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