diff options
author | Andrzej Pietrasiewicz <andrzej.p@samsung.com> | 2018-05-09 10:59:26 +0200 |
---|---|---|
committer | Inki Dae <inki.dae@samsung.com> | 2018-05-10 08:53:23 +0900 |
commit | 01fb9185dc180940f90510215ef8764d6155d088 (patch) | |
tree | 9a04da747a97587c1626788c31d9d156e4937e58 /Documentation/devicetree/bindings/gpu | |
parent | 7a2d5c77c55847f31945e5aa8337db2218a5a7c1 (diff) | |
download | linux-01fb9185dc180940f90510215ef8764d6155d088.tar.bz2 |
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>
Diffstat (limited to 'Documentation/devicetree/bindings/gpu')
-rw-r--r-- | Documentation/devicetree/bindings/gpu/samsung-scaler.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpu/samsung-scaler.txt b/Documentation/devicetree/bindings/gpu/samsung-scaler.txt new file mode 100644 index 000000000000..9c3d98105dfd --- /dev/null +++ b/Documentation/devicetree/bindings/gpu/samsung-scaler.txt @@ -0,0 +1,27 @@ +* 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"; + }; |