On Fri, Jul 17, 2020 at 10:18 AM Lucas Stach <l.stach@xxxxxxxxxxxxxx> wrote: > > Hi Laurentiu, > > Am Donnerstag, den 09.07.2020, 19:47 +0300 schrieb Laurentiu Palcu: > > From: Laurentiu Palcu <laurentiu.palcu@xxxxxxx> > > > > Hi, > > > > This patchset adds initial DCSS support for iMX8MQ chip. Initial support > > includes only graphics plane support (no video planes), no HDR10 capabilities, > > no graphics decompression (only linear, tiled and super-tiled buffers allowed). > > > > Support for the rest of the features will be added incrementally, in subsequent > > patches. > > > > The patchset was tested with both HDP driver (in the downstream tree) and the upstream > > MIPI-DSI driver (with a couple of patches on top, to make it work correctly with DCSS). > > I think the series (minus 3/5 and minor correction to the DT binding) > is fine to go in now. So just some formal questions: are you going to > maintain this driver in upstream? If so we should add a MAINTAINERS > entry to that effect. I can offer to act as a reviewer in this case. > > How do you intend to merge this? IMO pushing this through drm-misc > seems like the right thing to do. If you agree I can help you get this > applied. If you are going to maintain the driver on your own, I think > you should then apply for commit rights to drm-misc. drm/imx isn't listed yet as under the drm-misc umbrella, maybe we should put the entire collective of imx drivers under drm-misc? Or maybe it's just an oversight that the git repo isn't specified in the MAINTAINERS entry. Also maybe we should add the pengutronix kernel team alias there too? -Daniel > Regards, > Lucas > > > Thanks, > > Laurentiu > > > > Changes in v5: > > * Rebased to latest; > > * Took out component framework support and made it a separate patch so > > that people can still test with HDP driver, which makes use of it. > > But the idea is to get rid of it once HDP driver's next versions > > will remove component framework as well; > > * Slight improvement to modesetting: avoid cutting off the pixel clock > > if the new mode and the old one are equal. Also, in this case, is > > not necessary to wait for DTG to shut off. This would allow to switch > > from 8b RGB to 12b YUV422, for example, with no interruptions (at least > > from DCSS point of view); > > * Do not fire off CTXLD when going to suspend, unless it still has > > entries that need to be committed to DCSS; > > * Addressed Rob's comments on bindings; > > > > Changes in v4: > > * Addressed Lucas and Philipp's comments: > > * Added DRM_KMS_CMA_HELPER dependency in Kconfig; > > * Removed usage of devm_ functions since I'm already doing all the > > clean-up in the submodules_deinit(); > > * Moved the drm_crtc_arm_vblank_event() in dcss_crtc_atomic_flush(); > > * Removed en_completion variable from dcss_crtc since this was > > introduced mainly to avoid vblank timeout warnings which were fixed > > by arming the vblank event in flush() instead of begin(); > > * Removed clks_on and irq_enabled flags since all the calls to > > enabling/disabling clocks and interrupts were balanced; > > * Removed the custom atomic_commit callback and used the DRM core > > helper and, in the process, got rid of a workqueue that wasn't > > necessary anymore; > > * Fixed some minor DT binding issues flagged by Philipp; > > * Some other minor changes suggested by Lucas; > > * Removed YUV formats from the supported formats as these cannot work > > without the HDR10 module CSCs and LUTs. Will add them back when I > > will add support for video planes; > > > > Changes in v3: > > * rebased to latest linux-next and made it compile as drmP.h was > > removed; > > * removed the patch adding the VIDEO2_PLL clock. It's already applied; > > * removed an unnecessary 50ms sleep in the dcss_dtg_sync_set(); > > * fixed a a spurious hang reported by Lukas Hartmann and encountered > > by me several times; > > * mask DPR and DTG interrupts by default, as they may come enabled from > > U-boot; > > > > Changes in v2: > > * Removed '0x' in node's unit-address both in DT and yaml; > > * Made the address region size lowercase, to be consistent; > > * Removed some left-over references to P010; > > * Added a Kconfig dependency of DRM && ARCH_MXC. This will also silence compilation > > issues reported by kbuild for other architectures; > > > > Laurentiu Palcu (5): > > drm/imx: compile imx directory by default > > drm/imx: Add initial support for DCSS on iMX8MQ > > drm/imx/dcss: add component framework functionality > > dt-bindings: display: imx: add bindings for DCSS > > arm64: dts: imx8mq: add DCSS node > > > > .../bindings/display/imx/nxp,imx8mq-dcss.yaml | 84 ++ > > arch/arm64/boot/dts/freescale/imx8mq.dtsi | 23 + > > drivers/gpu/drm/Makefile | 2 +- > > drivers/gpu/drm/imx/Kconfig | 2 + > > drivers/gpu/drm/imx/Makefile | 1 + > > drivers/gpu/drm/imx/dcss/Kconfig | 9 + > > drivers/gpu/drm/imx/dcss/Makefile | 6 + > > drivers/gpu/drm/imx/dcss/dcss-blkctl.c | 70 ++ > > drivers/gpu/drm/imx/dcss/dcss-crtc.c | 219 +++++ > > drivers/gpu/drm/imx/dcss/dcss-ctxld.c | 424 +++++++++ > > drivers/gpu/drm/imx/dcss/dcss-dev.c | 314 +++++++ > > drivers/gpu/drm/imx/dcss/dcss-dev.h | 177 ++++ > > drivers/gpu/drm/imx/dcss/dcss-dpr.c | 562 ++++++++++++ > > drivers/gpu/drm/imx/dcss/dcss-drv.c | 183 ++++ > > drivers/gpu/drm/imx/dcss/dcss-dtg.c | 409 +++++++++ > > drivers/gpu/drm/imx/dcss/dcss-kms.c | 185 ++++ > > drivers/gpu/drm/imx/dcss/dcss-kms.h | 43 + > > drivers/gpu/drm/imx/dcss/dcss-plane.c | 405 +++++++++ > > drivers/gpu/drm/imx/dcss/dcss-scaler.c | 826 ++++++++++++++++++ > > drivers/gpu/drm/imx/dcss/dcss-ss.c | 180 ++++ > > 20 files changed, 4123 insertions(+), 1 deletion(-) > > create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml > > create mode 100644 drivers/gpu/drm/imx/dcss/Kconfig > > create mode 100644 drivers/gpu/drm/imx/dcss/Makefile > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-blkctl.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-crtc.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-ctxld.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-dev.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-dev.h > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-dpr.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-drv.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-dtg.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-kms.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-kms.h > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-plane.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-scaler.c > > create mode 100644 drivers/gpu/drm/imx/dcss/dcss-ss.c > > > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
