S5P: Exynos: Add GPIO pin numbering and rename definitions

This patch includes following changes :
* Adds gpio pin numbering support for EXYNOS SOCs.
  To have consistent 0..n-1 GPIO numbering the banks are divided
  into different parts where ever they have holes in them.

* Rename GPIO definitions from GPIO_... to S5P_GPIO_...
  These changes were done to enable cmd_gpio for EXYNOS and
  cmd_gpio has GPIO_INPUT same as s5p_gpio driver and hence
  getting a error during compilation.

* Adds support for name to gpio conversion in s5p_gpio to enable
  gpio command EXYNOS SoCs. Function has been added to asm/gpio.h
  to decode the input gpio name to gpio number.
  Example: SMDK5420 # gpio set gpa00

Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/dts/exynos4210-origen.dts b/arch/arm/dts/exynos4210-origen.dts
index 5c9d2ae..15059d2 100644
--- a/arch/arm/dts/exynos4210-origen.dts
+++ b/arch/arm/dts/exynos4210-origen.dts
@@ -36,10 +36,10 @@
 	sdhci@12530000 {
 		samsung,bus-width = <4>;
 		samsung,timing = <1 2 3>;
-		cd-gpios = <&gpio 0x2008002 0>;
+		cd-gpios = <&gpio 0xA2 0>;
 	};
 
 	sdhci@12540000 {
 		status = "disabled";
 	};
-};
\ No newline at end of file
+};
diff --git a/arch/arm/dts/exynos4210-trats.dts b/arch/arm/dts/exynos4210-trats.dts
index 992e023..0ff6939 100644
--- a/arch/arm/dts/exynos4210-trats.dts
+++ b/arch/arm/dts/exynos4210-trats.dts
@@ -101,7 +101,7 @@
 	sdhci@12510000 {
 		samsung,bus-width = <8>;
 		samsung,timing = <1 3 3>;
-		pwr-gpios = <&gpio 0x2008002 0>;
+		pwr-gpios = <&gpio 0xA2 0>;
 	};
 
 	sdhci@12520000 {
@@ -111,10 +111,10 @@
 	sdhci@12530000 {
 		samsung,bus-width = <4>;
 		samsung,timing = <1 2 3>;
-		cd-gpios = <&gpio 0x20c6004 0>;
+		cd-gpios = <&gpio 0x39C 0>;
 	};
 
 	sdhci@12540000 {
 		status = "disabled";
 	};
-};
\ No newline at end of file
+};
diff --git a/arch/arm/dts/exynos4210-universal_c210.dts b/arch/arm/dts/exynos4210-universal_c210.dts
index 1cdd981..6941906 100644
--- a/arch/arm/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/dts/exynos4210-universal_c210.dts
@@ -24,7 +24,7 @@
 	sdhci@12510000 {
 		samsung,bus-width = <8>;
 		samsung,timing = <1 3 3>;
-		pwr-gpios = <&gpio 0x2008002 0>;
+		pwr-gpios = <&gpio 0xA2 0>;
 	};
 
 	sdhci@12520000 {
@@ -34,7 +34,7 @@
 	sdhci@12530000 {
 		samsung,bus-width = <4>;
 		samsung,timing = <1 2 3>;
-		cd-gpios = <&gpio 0x20c6004 0>;
+		cd-gpios = <&gpio 0x39C 0>;
 	};
 
 	sdhci@12540000 {
diff --git a/arch/arm/dts/exynos4412-trats2.dts b/arch/arm/dts/exynos4412-trats2.dts
index 7d32067..1596f83 100644
--- a/arch/arm/dts/exynos4412-trats2.dts
+++ b/arch/arm/dts/exynos4412-trats2.dts
@@ -415,7 +415,7 @@
 	sdhci@12510000 {
 		samsung,bus-width = <8>;
 		samsung,timing = <1 3 3>;
-		pwr-gpios = <&gpio 0x2004002 0>;
+		pwr-gpios = <&gpio 0xB2 0>;
 	};
 
 	sdhci@12520000 {
@@ -425,7 +425,7 @@
 	sdhci@12530000 {
 		samsung,bus-width = <4>;
 		samsung,timing = <1 2 3>;
-		cd-gpios = <&gpio 0x20C6004 0>;
+		cd-gpios = <&gpio 0x3BC 0>;
 	};
 
 	sdhci@12540000 {