mirror of https://gitee.com/openkylin/linux.git
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>
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* Samsung Exynos5 G-Scaler device
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G-Scaler is used for scaling and color space conversion on EXYNOS5 SoCs.
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Required properties:
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- compatible: should be "samsung,exynos5-gsc"
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- reg: should contain G-Scaler physical address location and length.
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- interrupts: should contain G-Scaler interrupt number
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Example:
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gsc_0: gsc@0x13e00000 {
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compatible = "samsung,exynos5-gsc";
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reg = <0x13e00000 0x1000>;
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interrupts = <0 85 0>;
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};
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Aliases:
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Each G-Scaler node should have a numbered alias in the aliases node,
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in the form of gscN, N = 0...3. G-Scaler driver uses these aliases
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to retrieve the device IDs using "of_alias_get_id()" call.
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Example:
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aliases {
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gsc0 =&gsc_0;
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gsc1 =&gsc_1;
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gsc2 =&gsc_2;
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gsc3 =&gsc_3;
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};
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@ -27,6 +27,10 @@ aliases {
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spi0 = &spi_0;
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spi1 = &spi_1;
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spi2 = &spi_2;
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gsc0 = &gsc_0;
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gsc1 = &gsc_1;
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gsc2 = &gsc_2;
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gsc3 = &gsc_3;
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};
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gic:interrupt-controller@10481000 {
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@ -460,4 +464,28 @@ gpz: gpio-controller@03860000 {
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#gpio-cells = <4>;
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};
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};
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gsc_0: gsc@0x13e00000 {
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compatible = "samsung,exynos5-gsc";
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reg = <0x13e00000 0x1000>;
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interrupts = <0 85 0>;
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};
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gsc_1: gsc@0x13e10000 {
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compatible = "samsung,exynos5-gsc";
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reg = <0x13e10000 0x1000>;
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interrupts = <0 86 0>;
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};
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gsc_2: gsc@0x13e20000 {
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compatible = "samsung,exynos5-gsc";
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reg = <0x13e20000 0x1000>;
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interrupts = <0 87 0>;
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};
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gsc_3: gsc@0x13e30000 {
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compatible = "samsung,exynos5-gsc";
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reg = <0x13e30000 0x1000>;
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interrupts = <0 88 0>;
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};
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};
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@ -121,6 +121,11 @@
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#define EXYNOS4_PA_SYSMMU_MFC_L 0x13620000
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#define EXYNOS4_PA_SYSMMU_MFC_R 0x13630000
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#define EXYNOS5_PA_GSC0 0x13E00000
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#define EXYNOS5_PA_GSC1 0x13E10000
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#define EXYNOS5_PA_GSC2 0x13E20000
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#define EXYNOS5_PA_GSC3 0x13E30000
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#define EXYNOS5_PA_SYSMMU_MDMA1 0x10A40000
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#define EXYNOS5_PA_SYSMMU_SSS 0x10A50000
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#define EXYNOS5_PA_SYSMMU_2D 0x10A60000
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@ -56,6 +56,14 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
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OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL),
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OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL),
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OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL),
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OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC0,
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"exynos-gsc.0", NULL),
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OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC1,
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"exynos-gsc.1", NULL),
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OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC2,
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"exynos-gsc.2", NULL),
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OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3,
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"exynos-gsc.3", NULL),
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{},
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};
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