This patchset includes device tree support for rotator of exynos4210/4x12/5250. Unfortunately, each of them has slightly different limitations of image size. The rotator can support several image formats(RGB888/555, YCbCr422/420_2/3p). For convinience, however, exynos drm rotator driver only support RGB888 and YCbCr420 2-Plane formats. For example, the exynos4210 has 16k x 16k maximum size . But rest of them has 8k x 8k. In addition, RGB888 X/Y pixel size of exynos5250 should be multiple of 2. But others are multiple of 4. Thus, we should define different compatibles and limit tables for each chipsets.
Changes from v1: - Added exynos5250 binding. - Move limit table into driver code from DT-nodes
Chanho Park (5): drm/exynos: add device tree support for rotator ARM: dts: Add rotator node for exynos4210 ARM: dts: Add rotator node for exynos4x12 ARM: dts: Add rotator node for exynos5250 ARM: dts: Add dt binding documentation for exynos rotator
.../devicetree/bindings/gpu/samsung-rotator.txt | 26 +++++ arch/arm/boot/dts/exynos4.dtsi | 9 ++ arch/arm/boot/dts/exynos4x12.dtsi | 4 + arch/arm/boot/dts/exynos5250.dtsi | 9 ++ drivers/gpu/drm/exynos/exynos_drm_rotator.c | 109 +++++++++++++++----- 5 files changed, 129 insertions(+), 28 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpu/samsung-rotator.txt