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 (not yet upstreamed) and MIPI-DSI
(drivers already on the dri-devel ML).
Thanks,
Laurentiu
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 (4):
drm/imx: compile imx directory by default
drm/imx: Add initial support for DCSS on iMX8MQ
dt-bindings: display: imx: add bindings for DCSS
arm64: dts: imx8mq: add DCSS node
.../bindings/display/imx/nxp,imx8mq-dcss.yaml | 85 ++
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 | 73 ++
drivers/gpu/drm/imx/dcss/dcss-crtc.c | 206 +++++
drivers/gpu/drm/imx/dcss/dcss-ctxld.c | 431 +++++++++
drivers/gpu/drm/imx/dcss/dcss-dev.c | 277 ++++++
drivers/gpu/drm/imx/dcss/dcss-dev.h | 172 ++++
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 | 413 +++++++++
drivers/gpu/drm/imx/dcss/dcss-kms.c | 188 ++++
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, 4086 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
--
2.17.1
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