Hello,
This patch series adds i.MX7 support to the mxsfb driver. The eLCDIF instance found in the i.MX7 is backward-compatible with the already supported LCDC v4, but has extended features amongst which the most notable one is a second plane.
The first 10 patches (01/22 to 10/22) contain miscellaneous cleanups and refactoring to prepare for what is to come. Patch 11/22 starts the real work with removal of the DRM simple display pipeline helper, as it doesn't support multiple planes. The next patch (12/22) is an additional cleanup.
Patches 13/22 to 15/22 fix vblank handling that I found to be broken when testing on my device. Patch 16/22 then performs an additional small cleanup, and patch 17/22 starts official support for i.MX7 by mentioning it in Kconfig.
Patch 18/22 adds a new device model for the i.MX6SX and i.MX7 eLCDIF. After three additional cleanups in patches 19/22 to 21/22, patch 22/22 finally adds support for the second plane.
The second plane suffers from an issue whose root cause hasn't been found, which results in the first 64 bytes of the first line to contain data of unknown origin. Help from NXP to diagnose this issue would be useful and appreciated.
Compared to v1, the patches incorporate various review feedback, without major modifications. See individual changelogs for details.
The code is based on v5.7-rc7 and has been tested on an i.MX7D platform with a DPI panel. There is no conflict between v5.7-rc7 and drm-misc-next for the mxsfb driver.
Laurent Pinchart (22): drm: mxsfb: Remove fbdev leftovers drm: mxsfb: Use drm_panel_bridge drm: mxsfb: Use BIT() macro to define register bitfields drm: mxsfb: Remove unused macros from mxsfb_regs.h drm: mxsfb: Clarify format and bus width configuration drm: mxsfb: Pass mxsfb_drm_private pointer to mxsfb_reset_block() drm: mxsfb: Use LCDC_CTRL register name explicitly drm: mxsfb: Remove register definitions from mxsfb_crtc.c drm: mxsfb: Remove unneeded includes drm: mxsfb: Rename mxsfb_crtc.c to mxsfb_kms.c drm: mxsfb: Stop using DRM simple display pipeline helper drm: mxsfb: Move vblank event arm to CRTC .atomic_flush() drm: mxsfb: Don't touch AXI clock in IRQ context drm: mxsfb: Enable vblank handling drm: mxsfb: Remove mxsfb_devdata unused fields drm: mxsfb: Add i.MX7 and i.MX8M to the list of supported SoCs in Kconfig drm: mxsfb: Update internal IP version number for i.MX6SX drm: mxsfb: Drop non-OF support drm: mxsfb: Turn mxsfb_set_pixel_fmt() into a void function drm: mxsfb: Merge mxsfb_set_pixel_fmt() and mxsfb_set_bus_fmt() drm: mxsfb: Remove unnecessary spaces after tab drm: mxsfb: Support the alpha plane
drivers/gpu/drm/mxsfb/Kconfig | 8 +- drivers/gpu/drm/mxsfb/Makefile | 2 +- drivers/gpu/drm/mxsfb/mxsfb_crtc.c | 343 ----------------- drivers/gpu/drm/mxsfb/mxsfb_drv.c | 248 ++++--------- drivers/gpu/drm/mxsfb/mxsfb_drv.h | 42 ++- drivers/gpu/drm/mxsfb/mxsfb_kms.c | 565 +++++++++++++++++++++++++++++ drivers/gpu/drm/mxsfb/mxsfb_out.c | 99 ----- drivers/gpu/drm/mxsfb/mxsfb_regs.h | 103 +++--- 8 files changed, 732 insertions(+), 678 deletions(-) delete mode 100644 drivers/gpu/drm/mxsfb/mxsfb_crtc.c create mode 100644 drivers/gpu/drm/mxsfb/mxsfb_kms.c delete mode 100644 drivers/gpu/drm/mxsfb/mxsfb_out.c