Merge branch 'next/dt-gscaler' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers

From Kukjin Kim:

Here is G-Scaler DT for supporting EXYNOS5 SoCs.

* 'next/dt-gscaler' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Adds G-Scaler device from Device Tree
  ARM: EXYNOS: Add clock support for G-Scaler

5 files changed, 157 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/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index 774533c67066..1f819ffebbf1 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -552,6 +552,68 @@ static struct clksrc_clk exynos5_clk_aclk_66 = {
         .reg_div = { .reg = EXYNOS5_CLKDIV_TOP0, .shift = 0, .size = 3 },
 };
 
+static struct clksrc_clk exynos5_clk_mout_aclk_300_gscl_mid = {
+        .clk    = {
+                .name           = "mout_aclk_300_gscl_mid",
+        },
+        .sources = &exynos5_clkset_aclk,
+        .reg_src = { .reg = EXYNOS5_CLKSRC_TOP0, .shift = 24, .size = 1 },
+};
+
+static struct clk *exynos5_clkset_aclk_300_mid1_list[] = {
+        [0] = &exynos5_clk_sclk_vpll.clk,
+        [1] = &exynos5_clk_mout_cpll.clk,
+};
+
+static struct clksrc_sources exynos5_clkset_aclk_300_gscl_mid1 = {
+        .sources        = exynos5_clkset_aclk_300_mid1_list,
+        .nr_sources     = ARRAY_SIZE(exynos5_clkset_aclk_300_mid1_list),
+};
+
+static struct clksrc_clk exynos5_clk_mout_aclk_300_gscl_mid1 = {
+        .clk    = {
+                .name           = "mout_aclk_300_gscl_mid1",
+        },
+        .sources = &exynos5_clkset_aclk_300_gscl_mid1,
+        .reg_src = { .reg = EXYNOS5_CLKSRC_TOP1, .shift = 12, .size = 1 },
+};
+
+static struct clk *exynos5_clkset_aclk_300_gscl_list[] = {
+        [0] = &exynos5_clk_mout_aclk_300_gscl_mid.clk,
+        [1] = &exynos5_clk_mout_aclk_300_gscl_mid1.clk,
+};
+
+static struct clksrc_sources exynos5_clkset_aclk_300_gscl = {
+        .sources        = exynos5_clkset_aclk_300_gscl_list,
+        .nr_sources     = ARRAY_SIZE(exynos5_clkset_aclk_300_gscl_list),
+};
+
+static struct clksrc_clk exynos5_clk_mout_aclk_300_gscl = {
+        .clk    = {
+                .name           = "mout_aclk_300_gscl",
+        },
+        .sources = &exynos5_clkset_aclk_300_gscl,
+        .reg_src = { .reg = EXYNOS5_CLKSRC_TOP0, .shift = 25, .size = 1 },
+};
+
+static struct clk *exynos5_clk_src_gscl_300_list[] = {
+        [0] = &clk_ext_xtal_mux,
+        [1] = &exynos5_clk_mout_aclk_300_gscl.clk,
+};
+
+static struct clksrc_sources exynos5_clk_src_gscl_300 = {
+        .sources        = exynos5_clk_src_gscl_300_list,
+        .nr_sources     = ARRAY_SIZE(exynos5_clk_src_gscl_300_list),
+};
+
+static struct clksrc_clk exynos5_clk_aclk_300_gscl = {
+        .clk    = {
+                .name           = "aclk_300_gscl",
+        },
+        .sources = &exynos5_clk_src_gscl_300,
+        .reg_src = { .reg = EXYNOS5_CLKSRC_TOP3, .shift = 10, .size = 1 },
+};
+
 static struct clk exynos5_init_clocks_off[] = {
         {
                 .name           = "timers",
@@ -764,6 +826,26 @@ static struct clk exynos5_init_clocks_off[] = {
                 .enable         = exynos5_clk_ip_peric_ctrl,
                 .ctrlbit        = (1 << 18),
         }, {
+                .name           = "gscl",
+                .devname        = "exynos-gsc.0",
+                .enable         = exynos5_clk_ip_gscl_ctrl,
+                .ctrlbit        = (1 << 0),
+        }, {
+                .name           = "gscl",
+                .devname        = "exynos-gsc.1",
+                .enable         = exynos5_clk_ip_gscl_ctrl,
+                .ctrlbit        = (1 << 1),
+        }, {
+                .name           = "gscl",
+                .devname        = "exynos-gsc.2",
+                .enable         = exynos5_clk_ip_gscl_ctrl,
+                .ctrlbit        = (1 << 2),
+        }, {
+                .name           = "gscl",
+                .devname        = "exynos-gsc.3",
+                .enable         = exynos5_clk_ip_gscl_ctrl,
+                .ctrlbit        = (1 << 3),
+        }, {
                 .name           = SYSMMU_CLOCK_NAME,
                 .devname        = SYSMMU_CLOCK_DEVNAME(mfc_l, 0),
                 .enable         = &exynos5_clk_ip_mfc_ctrl,
@@ -1225,6 +1307,10 @@ static struct clksrc_clk *exynos5_sysclks[] = {
         &exynos5_clk_aclk_266,
         &exynos5_clk_aclk_200,
         &exynos5_clk_aclk_166,
+        &exynos5_clk_aclk_300_gscl,
+        &exynos5_clk_mout_aclk_300_gscl,
+        &exynos5_clk_mout_aclk_300_gscl_mid,
+        &exynos5_clk_mout_aclk_300_gscl_mid1,
         &exynos5_clk_aclk_66_pre,
         &exynos5_clk_aclk_66,
         &exynos5_clk_dout_mmc0,
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),
         {},
 };