Since v6.17, there is a regression for the Exynos 7870 DSIM driver. The display occasionally had random aberration when the panel was turned on. The first patch addresses that.
The second patch replaces an implicit loop for waiting for PLL stabilization with an interrupt-based solution, which should be more reliable. This solution was suggested by Inki Dae in a discussion of an earlier patch series sent by me. For further details, refer to its commit description. Signed-off-by: Kaustabh Chakraborty <[email protected]> --- Changes in v2: - drop now-not-required [v1 1/3] (Marek Szyprowski) - Link to v1: https://lore.kernel.org/r/[email protected] --- Kaustabh Chakraborty (2): drm/bridge: samsung-dsim: enable MFLUSH_VS for Exynos 7870 DSIM drm/bridge: samsung-dsim: use DSIM interrupt to wait for PLL stability drivers/gpu/drm/bridge/samsung-dsim.c | 48 +++++++++++++++++++++++++---------- include/drm/bridge/samsung-dsim.h | 1 + 2 files changed, 35 insertions(+), 14 deletions(-) --- base-commit: 9845cf73f7db6094c0d8419d6adb848028f4a921 change-id: 20260124-exynos-dsim-fixes-5383d6a6f073 Best regards, -- Kaustabh Chakraborty <[email protected]>
