kernel/linux.git/drivers/video/fbdev/core/Kconfig, branch v6.12.80

drm/omapdrm: Fix console with deferred ops

2024-03-18T11:43:39+00:00

Commit 95da53d63dcf ("drm/omapdrm: Use regular fbdev I/O helpers") stopped console from updating for command mode displays because there is no damage handling in fb_sys_write() unlike we had earlier in drm_fb_helper_sys_write(). Let's fix the issue by adding FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS and FB_DMAMEM_HELPERS_DEFERRED as suggested by Thomas. We cannot use the FB_DEFAULT_DEFERRED_OPS as fb_deferred_io_mmap() won't work properly for write-combine. Fixes: 95da53d63dcf ("drm/omapdrm: Use regular fbdev I/O helpers") Suggested-by: Thomas Zimmermann Reviewed-by: Thomas Zimmermann Signed-off-by: Tony Lindgren Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20240228063540.4444-3-tony@atomide.com

video/cmdline: Introduce CONFIG_VIDEO for video= parameter

2024-01-23T09:11:22+00:00

Add CONFIG_VIDEO for common code in drivers/video/. Use the option to select helpers for the video= parameter. Replaces CONFIG_VIDEO_CMDLINE. Other common code in drivers/video/ can be moved behind CONFIG_VIDEO, which will simplify the Kconfig rules. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20240118090721.7995-2-tzimmermann@suse.de

fbdev: Remove default file-I/O implementations

2023-11-29T11:20:53+00:00

Drop the default implementations for file read, write and mmap operations. Each fbdev driver must now provide an implementation and select any necessary helpers. If no implementation has been set, fbdev returns an errno code to user space. The code is the same as if the operation had not been set in the file_operations struct. This change makes the fbdev helpers for I/O memory optional. Most systems only use system-memory framebuffers via DRM's fbdev emulation. v2: * warn once if I/O callbacks are missing (Javier) Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-33-tzimmermann@suse.de

fbdev: Rename FB_SYS_FOPS token to FB_SYSMEM_FOPS

2023-11-29T11:20:42+00:00

Rename the token to harmonize naming among various helpers. For example, I/O-memory helpers use FB_IOMEM_FOPS. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-28-tzimmermann@suse.de

Merge tag 'drm-misc-next-2023-10-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2023-10-31T00:47:50+00:00

drm-misc-next for v6.7-rc1: drm-misc-next-2023-10-19 + following: UAPI Changes: Cross-subsystem Changes: - Convert fbdev drivers to use fbdev i/o mem helpers. Core Changes: - Use cross-references for macros in docs. - Make drm_client_buffer_addb use addfb2. - Add NV20 and NV30 YUV formats. - Documentation updates for create_dumb ioctl. - CI fixes. - Allow variable number of run-queues in scheduler. Driver Changes: - Rename drm/ast constants. - Make ili9882t its own driver. - Assorted fixes in ivpu, vc4, bridge/synopsis, amdgpu. - Add planar formats to rockchip. Signed-off-by: Dave Airlie From: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/3d92fae8-9b1b-4165-9ca8-5fda11ee146b@linux.intel.com

BackMerge tag 'v6.6-rc7' into drm-next

2023-10-23T08:20:06+00:00

This is needed to add the msm pr which is based on a higher base. Signed-off-by: Dave Airlie

fbdev: Provide I/O-memory helpers as module

2023-10-19T07:47:54+00:00

Provide helpers for accessing I/O memory in a helper module. The fbdev core uses these helpers, so select the module unconditionally for fbdev. Drivers will later be able to select the module individually and the helpers will become optional. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20230927074722.6197-2-tzimmermann@suse.de

drm: fix up fbdev Kconfig defaults

2023-09-18T08:52:55+00:00

As a result of the recent Kconfig reworks, the default settings for the framebuffer interfaces changed in unexpected ways: Configurations that leave CONFIG_FB disabled but use DRM now get DRM_FBDEV_EMULATION by default. This also turns on the deprecated /dev/fb device nodes for machines that don't actually want it. In turn, configurations that previously had DRM_FBDEV_EMULATION enabled now only get the /dev/fb front-end but not the more useful framebuffer console, which is not selected any more. We had previously decided that any combination of the three frontends (FB_DEVICE, FRAMEBUFFER_CONSOLE and LOGO) should be selectable, but the new default settings mean that a lot of defconfig files would have to get adapted. Change the defaults back to what they were in Linux 6.5: - Leave DRM_FBDEV_EMULATION turned off unless CONFIG_FB is enabled. Previously this was a hard dependency but now the two are independent. However, configurations that enable CONFIG_FB probably also want to keep the emulation for DRM, while those without FB presumably did that intentionally in the past. - Leave FB_DEVICE turned off for FB=n. Following the same logic, the deprecated option should not automatically get enabled here, most users that had FB turned off in the past do not want it, even if they want the console - Turn the FRAMEBUFFER_CONSOLE option on if DRM_FBDEV_EMULATION is set to avoid having to change defconfig files that relied on it being selected unconditionally in the past. This also makes sense since both LOGO and FB_DEVICE are now disabled by default for builds without CONFIG_FB, but DRM_FBDEV_EMULATION would make no sense if all three are disabled. Fixes: a5ae331edb02b ("drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION") Fixes: 701d2054fa317 ("fbdev: Make support for userspace interfaces configurable") Reported-by: Geert Uytterhoeven Signed-off-by: Arnd Bergmann Reviewed-by: Javier Martinez Canillas Reviewed-by: Geert Uytterhoeven Acked-by: Thomas Zimmermann Signed-off-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20230911205338.2385278-1-arnd@kernel.org

fbdev: Add Kconfig macro FB_IOMEM_HELPERS_DEFERRED

2023-09-05T12:13:58+00:00

The new Kconfig macro FB_IOMEM_HELPERS_DEFERRED selects fbdev's helpers for device I/O memory and deferred I/O. Drivers should use it if they perform damage updates on device I/O memory. Signed-off-by: Thomas Zimmermann Acked-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20230828132131.29295-4-tzimmermann@suse.de

fbdev: Use _DMAMEM_ infix for DMA-memory helpers

2023-07-31T18:07:18+00:00

Change the infix for fbdev's DMA-memory helpers from _DMA_ to _DMAMEM_. The helpers perform operations within DMA-able memory, but they don't perform DMA operations. Naming should make this clear. Adapt all users. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Acked-by: Helge Deller Link: https://patchwork.freedesktop.org/patch/msgid/20230729193157.15446-4-tzimmermann@suse.de