linux/Documentation/devicetree/bindings/gpu/samsung-scaler.txt
Andrzej Pietrasiewicz 01fb9185dc drm/exynos: Add driver for Exynos Scaler module
Exynos Scaler is a hardware module, which processes graphic data fetched
from memory and transfers the resultant dato another memory buffer.
Graphics data can be up/down-scaled, rotated, flipped and converted color
space. Scaler hardware modules are a part of Exynos5420 and newer Exynos
SoCs.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2018-05-10 08:53:23 +09:00

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* Samsung Exynos Image Scaler
Required properties:
- compatible : value should be one of the following:
(a) "samsung,exynos5420-scaler" for Scaler IP in Exynos5420
(b) "samsung,exynos5433-scaler" for Scaler IP in Exynos5433
- reg : Physical base address of the IP registers and length of memory
mapped region.
- interrupts : Interrupt specifier for scaler interrupt, according to format
specific to interrupt parent.
- clocks : Clock specifier for scaler clock, according to generic clock
bindings. (See Documentation/devicetree/bindings/clock/exynos*.txt)
- clock-names : Names of clocks. For exynos scaler, it should be "mscl"
on 5420 and "pclk", "aclk" and "aclk_xiu" on 5433.
Example:
scaler@12800000 {
compatible = "samsung,exynos5420-scaler";
reg = <0x12800000 0x1294>;
interrupts = <0 220 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_MSCL0>;
clock-names = "mscl";
};