linux/drivers/gpu/drm/Makefile, branch v6.0

drm: lcdif: Add support for i.MX8MP LCDIF variant

2022-06-28T23:44:48Z

Add support for i.MX8MP LCDIF variant. This is called LCDIFv3 and is completely different from the LCDIFv3 found in i.MX23 in that it has a completely scrambled register layout compared to all previous LCDIF variants. The new LCDIFv3 also supports 36bit address space. Add a separate driver which is really a fork of MXSFB driver with the i.MX8MP LCDIF variant handling filled in. Tested-by: Alexander Stein Tested-by: Martyn Welch Signed-off-by: Marek Vasut Cc: Alexander Stein Cc: Laurent Pinchart Cc: Lucas Stach Cc: Peng Fan Cc: Robby Cai Cc: Sam Ravnborg Cc: Stefan Agner Reviewed-by: Lucas Stach Link: https://patchwork.freedesktop.org/patch/msgid/20220628174152.167284-2-marex@denx.de

drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_rgb332()

2022-06-27T11:45:53Z

Test the conversion from XRGB8888 to RGB332. What is tested? - Different values for the X in XRGB8888 to make sure it is ignored - Different clip values: Single pixel and full and partial buffer - Well known colors: White, black, red, green, blue, magenta, yellow and cyan - Other colors: Randomly picked - Destination pitch How to run the tests? $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/gpu/drm/tests \ --kconfig_add CONFIG_VIRTIO_UML=y \ --kconfig_add CONFIG_UML_PCI_OVER_VIRTIO=y Suggested-by: Javier Martinez Canillas Reviewed-by: Javier Martinez Canillas Reviewed-by: David Gow Acked-by: Thomas Zimmermann Signed-off-by: José Expósito Link: https://patchwork.freedesktop.org/patch/msgid/20220620160640.3790-3-jose.exposito89@gmail.com

drm: Add support for the LogiCVC display controller

2022-06-09T14:49:56Z

Introduces a driver for the LogiCVC display controller, a programmable logic controller optimized for use in Xilinx Zynq-7000 SoCs and other Xilinx FPGAs. The controller is mostly configured at logic synthesis time so only a subset of configuration is left for the driver to handle. The following features are implemented and tested: - LVDS 4-bit interface; - RGB565 pixel formats; - Multiple layers and hardware composition; - Layer-wide alpha mode; The following features are implemented but untested: - Other RGB pixel formats; - Layer framebuffer configuration for version 4; - Lowest-layer used as background color; - Per-pixel alpha mode. The following features are not implemented: - YUV pixel formats; - DVI, LVDS 3-bit, ITU656 and camera link interfaces; - External parallel input for layer; - Color-keying; - LUT-based alpha modes. Additional implementation-specific notes: - Panels are only enabled after the first page flip to avoid flashing a white screen. - Depth used in context of the LogiCVC driver only counts color components to match the definition of the synthesis parameters. Support is implemented for both version 3 and 4 of the controller. With version 3, framebuffers are stored in a dedicated contiguous memory area, with a base address hardcoded for each layer. This requires using a dedicated CMA pool registered at the base address and tweaking a few offset-related registers to try to use any buffer allocated from the pool. This is done on a best-effort basis to have the hardware cope with the DRM framebuffer allocation model and there is no guarantee that each buffer allocated by GEM CMA can be used for any layer. In particular, buffers allocated below the base address for a layer are guaranteed not to be configurable for that layer. See the implementation of logicvc_layer_buffer_find_setup for specifics. Version 4 allows configuring each buffer address directly, which guarantees that any buffer can be configured. Signed-off-by: Paul Kocialkowski Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20220520141555.1429041-2-paul.kocialkowski@bootlin.com

drm/display: Move SCDC helpers into display-helper library

2022-04-25T09:19:37Z

SCDC is the Status and Control Data Channel for HDMI. Move the SCDC helpers into display/ and split the header into files for core and helpers. Update all affected drivers. No functional changes. To avoid the proliferation of Kconfig options, SCDC is part of DRM's support for HDMI. If necessary, a new option could make SCDC an independent feature. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-9-tzimmermann@suse.de

drm/display: Move HDCP helpers into display-helper module

2022-04-25T09:19:36Z

Move DRM's HDCP helper library into the display/ subdirectory and add it to DRM's display helpers. Split the header file into core and helpers. Update all affected drivers. No functional changes. v3: * fix Kconfig dependencies v2: * fix include statements (Jani, Javier) * update Kconfig symbols Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-7-tzimmermann@suse.de

drm/display: Move DSC header and helpers into display-helper module

2022-04-25T09:19:36Z

DSC is the Display Stream Compression standard for DisplayPort. Move the DSC code into display/ and split the header into files for protocol core and DRM helpers. Adapt all users of the code. No functional changes. To avoid the proliferation of Kconfig options, DSC is part of DRM's support for DisplayPort. If necessary, a new option could make DSC an independent feature. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-6-tzimmermann@suse.de

drm: Rename dp/ to display/

2022-04-25T09:17:45Z

Rename dp/ to display/ to account for additional display-related helpers, such as HDMI. Update all related include statements. No functional changes. Various drivers, such as i915 and amdgpu, use similar naming scheme by putting code for video-output standards into a local display/ directory. The new directory's name is aligned with this convention. v2: * update commit message (Javier) Signed-off-by: Thomas Zimmermann Reviewed-by: Lyude Paul Reviewed-by: Javier Martinez Canillas Reviewed-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-3-tzimmermann@suse.de

drm: Put related statements next to each other in Makefile

2022-04-25T09:17:45Z

Give the Makefile a bit more structure by putting rules for core, helpers, drivers, etc next to each other. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-2-tzimmermann@suse.de

drm: Add driver for Solomon SSD130x OLED displays

2022-02-16T12:29:04Z

This adds a DRM driver for SSD1305, SSD1306, SSD1307 and SSD1309 Solomon OLED display controllers. It's only the core part of the driver and a bus specific driver is needed for each transport interface supported by the display controllers. Signed-off-by: Javier Martinez Canillas Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20220214133710.3278506-4-javierm@redhat.com

drm: move the buddy allocator from i915 into common drm

2022-01-19T07:17:07Z

Move the base i915 buddy allocator code into drm - Move i915_buddy.h to include/drm - Move i915_buddy.c to drm root folder - Rename "i915" string with "drm" string wherever applicable - Rename "I915" string with "DRM" string wherever applicable - Fix header file dependencies - Fix alignment issues - add Makefile support for drm buddy - export functions and write kerneldoc description - Remove i915 selftest config check condition as buddy selftest will be moved to drm selftest folder cleanup i915 buddy references in i915 driver module and replace with drm buddy v2: - include header file in alphabetical order(Thomas) - merged changes listed in the body section into a single patch to keep the build intact(Christian, Jani) v3: - make drm buddy a separate module(Thomas, Christian) v4: - Fix build error reported by kernel test robot - removed i915 buddy selftest from i915_mock_selftests.h to avoid build error - removed selftests/i915_buddy.c file as we create a new set of buddy test cases in drm/selftests folder v5: - Fix merge conflict issue v6: - replace drm_buddy_mm structure name as drm_buddy(Thomas, Christian) - replace drm_buddy_alloc() function name as drm_buddy_alloc_blocks() (Thomas) - replace drm_buddy_free() function name as drm_buddy_free_block() (Thomas) - export drm_buddy_free_block() function - fix multiple instances of KMEM_CACHE() entry v7: - fix warnings reported by kernel test robot - modify the license(Christian) v8: - fix warnings reported by kernel test robot Signed-off-by: Arunpravin Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20220118104504.2349-1-Arunpravin.PaneerSelvam@amd.com Signed-off-by: Christian König