Hello,
the Exynos MIPI DSI Phy is also found on the i.MX8M Mini. However, on the i.MX8M Mini, the bridge is driven by an LCDIF display controller instead of the Exynos Decon. The driver for the LCDIF does not use the component framework, but uses drm bridges.
This series converts the Exynos MIPI DSI into a drm bridge and makes it usable with such drivers. Although the driver is converted, it still supports the component framework API to stay compliant with the Exynos DRM driver.
Unfortunately, I don't have any Exynos SoC to actually test the series. I tested the driver with a few additional unfinished patches on the i.MX8M Mini EVK, but somebody should definitely verify that the driver is still working on Exynos hardware.
Patch 1 is a quick documentation fix.
Patches 2 to 6 implement the drm bridge interface.
Patches 7 to 12 rework the driver to make it easier to split platform specific from common code.
Patches 13 and 14 add callbacks to handle the tearing effect interrupt and to tell the Exynos DRM driver, if the MIPI DSI bridge is using command or video mode. I am not too happy with these callbacks and any suggestion for a better solution is very welcome.
Patches 15 and 16 finally split and move the drm bridge driver out of the Exynos DRM driver.
Michael
Michael Tretter (16): drm/encoder: remove obsolete documentation of bridge drm/exynos: extract helper functions for probe drm/exynos: remove in_bridge_node from exynos_dsi drm/exynos: implement a drm bridge drm/exynos: convert encoder functions to bridge function drm/exynos: configure mode on drm bridge drm/exynos: get encoder from bridge whenever possible drm/exynos: use exynos_dsi as drvdata drm/exynos: call probe helper from bind drm/exynos: move dsi host registration to probe helper drm/exynos: shift register values to fields on write drm/exynos: use identifier instead of register offsets drm/exynos: add callback for tearing effect handler drm/exynos: add callback for enabling i80 mode drm/exynos: split out platform specific code drm/exynos: move bridge driver to bridges
drivers/gpu/drm/bridge/Kconfig | 7 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/samsung-dsim.c | 1797 ++++++++++++++++++++++ drivers/gpu/drm/exynos/exynos_drm_dsi.c | 1843 ++--------------------- include/drm/bridge/samsung-dsim.h | 57 + include/drm/drm_encoder.h | 1 - 6 files changed, 1967 insertions(+), 1739 deletions(-) create mode 100644 drivers/gpu/drm/bridge/samsung-dsim.c create mode 100644 include/drm/bridge/samsung-dsim.h