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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: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Shaik Ameer Basha 2012-09-07 14:13:08 +09:00 committed by Kukjin Kim
parent 2822d3187b
commit 1128658a08
4 changed files with 71 additions and 0 deletions
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30
Documentation/devicetree/bindings/media/exynos5-gsc.txt Normal file
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@ -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;
};

28
arch/arm/boot/dts/exynos5250.dtsi
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@ -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>;
};
};

5
arch/arm/mach-exynos/include/mach/map.h
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@ -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

8
arch/arm/mach-exynos/mach-exynos5-dt.c
View File

@ -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),
{},
};