4 files changed, 71 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/media/exynos5-gsc.txt b/Documentation/devicetree/bindings/media/exynos5-gsc.txt
new file mode 100644
index 000000000000..0604d42f38d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/exynos5-gsc.txt
@@ -0,0 +1,30 @@
+* Samsung Exynos5 G-Scaler device
+
+G-Scaler is used for scaling and color space conversion on EXYNOS5 SoCs.
+
+Required properties:
+- compatible: should be "samsung,exynos5-gsc"
+- reg: should contain G-Scaler physical address location and length.
+- interrupts: should contain G-Scaler interrupt number
+
+Example:
+
+gsc_0:  gsc@0x13e00000 {
+        compatible = "samsung,exynos5-gsc";
+        reg = <0x13e00000 0x1000>;
+        interrupts = <0 85 0>;
+};
+
+Aliases:
+Each G-Scaler node should have a numbered alias in the aliases node,
+in the form of gscN, N = 0...3. G-Scaler driver uses these aliases
+to retrieve the device IDs using "of_alias_get_id()" call.
+
+Example:
+
+aliases {
+        gsc0 =&gsc_0;
+        gsc1 =&gsc_1;
+        gsc2 =&gsc_2;
+        gsc3 =&gsc_3;
+};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 004aaa8d123c..b55794b494b4 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -27,6 +27,10 @@
                 spi0 = &spi_0;
                 spi1 = &spi_1;
                 spi2 = &spi_2;
+                gsc0 = &gsc_0;
+                gsc1 = &gsc_1;
+                gsc2 = &gsc_2;
+                gsc3 = &gsc_3;
         };
 
         gic:interrupt-controller@10481000 {
@@ -460,4 +464,28 @@
                         #gpio-cells = <4>;
                 };
         };
+
+        gsc_0:  gsc@0x13e00000 {
+                compatible = "samsung,exynos5-gsc";
+                reg = <0x13e00000 0x1000>;
+                interrupts = <0 85 0>;
+        };
+
+        gsc_1:  gsc@0x13e10000 {
+                compatible = "samsung,exynos5-gsc";
+                reg = <0x13e10000 0x1000>;
+                interrupts = <0 86 0>;
+        };
+
+        gsc_2:  gsc@0x13e20000 {
+                compatible = "samsung,exynos5-gsc";
+                reg = <0x13e20000 0x1000>;
+                interrupts = <0 87 0>;
+        };
+
+        gsc_3:  gsc@0x13e30000 {
+                compatible = "samsung,exynos5-gsc";
+                reg = <0x13e30000 0x1000>;
+                interrupts = <0 88 0>;
+        };
 };
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index c72b675b3e4b..0300d7adc151 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -121,6 +121,11 @@
 #define EXYNOS4_PA_SYSMMU_MFC_L         0x13620000
 #define EXYNOS4_PA_SYSMMU_MFC_R         0x13630000
 
+#define EXYNOS5_PA_GSC0                 0x13E00000
+#define EXYNOS5_PA_GSC1                 0x13E10000
+#define EXYNOS5_PA_GSC2                 0x13E20000
+#define EXYNOS5_PA_GSC3                 0x13E30000
+
 #define EXYNOS5_PA_SYSMMU_MDMA1         0x10A40000
 #define EXYNOS5_PA_SYSMMU_SSS           0x10A50000
 #define EXYNOS5_PA_SYSMMU_2D            0x10A60000
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index ef770bc2318f..e707eb1b1eab 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -56,6 +56,14 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
         OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL),
         OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL),
         OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL),
+        OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC0,
+                                "exynos-gsc.0", NULL),
+        OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC1,
+                                "exynos-gsc.1", NULL),
+        OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC2,
+                                "exynos-gsc.2", NULL),
+        OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3,
+                                "exynos-gsc.3", NULL),
         {},
 };