From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 18 Sep 2006 09:19:06 +0000 (+0100)
Subject: [ARM] 3806/2: S3C2412: Fix GPIO VA when only S3C2412 selected
X-Git-Tag: v2.6.19-rc1~885^2~59
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=50dedf168c1afd23cbc6c4fd8429c9e931b4e813;p=linux-2.6

[ARM] 3806/2: S3C2412: Fix GPIO VA when only S3C2412 selected

The s3c24xx_va_gpio2 variable is only used
when the S3C2412 and another cpu-type is
being used in the kernel. This patch ensures
it is not set when it is not being used.

Fixes bug report by Thomas Gleixner.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/mach-s3c2410/s3c2412.c b/arch/arm/mach-s3c2410/s3c2412.c
index 2d163f7600..a5ec56efd5 100644
--- a/arch/arm/mach-s3c2410/s3c2412.c
+++ b/arch/arm/mach-s3c2410/s3c2412.c
@@ -56,6 +56,13 @@
 
 #ifndef CONFIG_CPU_S3C2412_ONLY
 void __iomem *s3c24xx_va_gpio2 = S3C24XX_VA_GPIO;
+
+static inline void s3c2412_init_gpio2(void)
+{
+	s3c24xx_va_gpio2 = S3C24XX_VA_GPIO + 0x10;
+}
+#else
+#define s3c2412_init_gpio2() do { } while(0)
 #endif
 
 /* Initial IO mappings */
@@ -110,7 +117,7 @@ void __init s3c2412_map_io(struct map_desc *mach_desc, int mach_size)
 {
 	/* move base of IO */
 
-	s3c24xx_va_gpio2 = S3C24XX_VA_GPIO + 0x10;
+	s3c2412_init_gpio2();
 
 	/* set our idle function */