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

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;
+};

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>;
+	};
 };

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",
@@ -763,6 +825,26 @@ static struct clk exynos5_init_clocks_off[] = {
 		.parent		= &exynos5_clk_aclk_66.clk,
 		.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),
@@ -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,

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

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),
 	{},
 };