Atomic Mode-Setting Still Baking For Samsung's Exynos DRM Driver
Written by Michael Larabel in Hardware on 28 May 2015 at 05:55 PM EDT. Add A Comment
Developers working on the open-source Exynos DRM driver for supporting the display block found on Samsung's Exynos ARM SoCs are up to their 9th version of patches for providing atomic mode-setting support.

Many of the in-kernel DRM/KMS drivers are now shipping with atomic mode-setting as of the latest Linux kernel releases, but Exynos is still baking their code and it's not clear if it will be ready for the upcoming Linux 4.2 cycle. One of the primary benefits of the DRM driver supporting atomic mode-setting is that it can allow a full mode-set operation to be tested prior to actually being committed to ensure it can be properly handled by the driver and display hardware. For end-users, this is meant to yield less problems and ideally avoid any display flickering.

The V9 Exynos Atomic MS patches amount to eighteen different patches while it actually causes a net reduction in code: 276 insertions and 411 deletions.
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