Commit 1128658a authored by Shaik Ameer Basha's avatar Shaik Ameer Basha Committed by Kukjin Kim
Browse files

ARM: EXYNOS: Adds G-Scaler device from Device Tree 



This patch adds,
- 4 G-Scaler devices to the DT device list
- G-Scaler specific entries to the machine file
- binding documentation for G-Scaler entries

Signed-off-by: default avatarAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: default avatarLeela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: default avatarShaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 2822d318

Documentation/devicetree/bindings/media/exynos5-gsc.txt

0 → 100644
+30 −0
Original line number Diff line number Diff line 
* 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

+28 −0
Original line number Diff line number Diff line
@@ -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/include/mach/map.h

+5 −0
Original line number Diff line number Diff line
@@ -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

+8 −0
Original line number Diff line number Diff line
@@ -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),

	{},

};

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