linux/drivers/gpu/drm/tiny, branch v6.14

drm/bochs: Fix DPMS regression

2025-03-06T07:54:42Z

The recent rewrite with the use of regular atomic helpers broke the DPMS unblanking on X11. Fix it by moving the call of bochs_hw_blank(false) from CRTC mode_set_nofb() to atomic_enable(). Fixes: 2037174993c8 ("drm/bochs: Use regular atomic helpers") Link: https://bugzilla.suse.com/show_bug.cgi?id=1238209 Signed-off-by: Takashi Iwai Reviewed-by: Thomas Zimmermann Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20250304134203.20534-1-tiwai@suse.de

Merge remote-tracking branch 'drm-misc/drm-misc-next-fixes' into drm-misc-fixes

2025-02-06T08:59:35Z

Merge the few remaining patches stuck into drm-misc-next-fixes. Signed-off-by: Maxime Ripard

drm/bochs: Do not put DRM device in PCI remove callback

2025-01-23T06:37:29Z

Removing the bochs PCI device should mark the DRM device as unplugged without removing it. Hence clear the respective call to drm_dev_put() from bochs_pci_remove(). Fixes a double unref in devm_drm_dev_init_release(). An example error message is shown below: [ 32.958338] BUG: KASAN: use-after-free in drm_dev_put.part.0+0x1b/0x90 [ 32.958850] Write of size 4 at addr ffff888152134004 by task (udev-worker)/591 [ 32.959574] CPU: 3 UID: 0 PID: 591 Comm: (udev-worker) Tainted: G E 6.13.0-rc2-1-default+ #3417 [ 32.960316] Tainted: [E]=UNSIGNED_MODULE [ 32.960637] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-2-gc13ff2cd-prebuilt.qemu.org 04/01/2014 [ 32.961429] Call Trace: [ 32.961433] [ 32.961439] dump_stack_lvl+0x68/0x90 [ 32.961452] print_address_description.constprop.0+0x88/0x330 [ 32.961461] ? preempt_count_sub+0x14/0xc0 [ 32.961473] print_report+0xe2/0x1d0 [ 32.961479] ? srso_alias_return_thunk+0x5/0xfbef5 [ 32.963725] ? __virt_addr_valid+0x143/0x320 [ 32.964077] ? srso_alias_return_thunk+0x5/0xfbef5 [ 32.964463] ? drm_dev_put.part.0+0x1b/0x90 [ 32.964817] kasan_report+0xce/0x1a0 [ 32.965123] ? drm_dev_put.part.0+0x1b/0x90 [ 32.965474] kasan_check_range+0xff/0x1c0 [ 32.965806] drm_dev_put.part.0+0x1b/0x90 [ 32.966138] release_nodes+0x84/0xc0 [ 32.966447] devres_release_all+0xd2/0x110 [ 32.966788] ? __pfx_devres_release_all+0x10/0x10 [ 32.967177] ? preempt_count_sub+0x14/0xc0 [ 32.967523] device_unbind_cleanup+0x16/0xc0 [ 32.967886] really_probe+0x1b7/0x570 [ 32.968207] __driver_probe_device+0xca/0x1b0 [ 32.968568] driver_probe_device+0x4a/0xf0 [ 32.968907] __driver_attach+0x10b/0x290 [ 32.969239] ? __pfx___driver_attach+0x10/0x10 [ 32.969598] bus_for_each_dev+0xc0/0x110 [ 32.969923] ? __pfx_bus_for_each_dev+0x10/0x10 [ 32.970291] ? bus_add_driver+0x17a/0x2b0 [ 32.970622] ? srso_alias_return_thunk+0x5/0xfbef5 [ 32.971011] bus_add_driver+0x19a/0x2b0 [ 32.971335] driver_register+0xd8/0x160 [ 32.971671] ? __pfx_bochs_pci_driver_init+0x10/0x10 [bochs] [ 32.972130] do_one_initcall+0xba/0x390 [...] After unplugging the DRM device, clients will close their references. Closing the final reference will also release the DRM device. Reported-by: Dr. David Alan Gilbert Closes: https://lore.kernel.org/lkml/Z18dbfDAiFadsSdg@gallifrey/ Fixes: 04826f588682 ("drm/bochs: Allocate DRM device in struct bochs_device") Cc: Thomas Zimmermann Cc: Gerd Hoffmann Cc: virtualization@lists.linux.dev Signed-off-by: Thomas Zimmermann Reviewed-by: Dmitry Baryshkov Link: https://patchwork.freedesktop.org/patch/msgid/20250103095615.231162-1-tzimmermann@suse.de

drm/tiny: panel-mipi-dbi: Include

2024-12-13T14:21:02Z

Include directly to get of_property_read_string_index(). Avoids the proxy include via Signed-off-by: Thomas Zimmermann Cc: "Noralf Trønnes" Reviewed-by: Noralf Trønnes Link: https://patchwork.freedesktop.org/patch/msgid/20241011144632.90434-7-tzimmermann@suse.de

Merge remote-tracking branch 'drm/drm-next' into drm-misc-next

2024-12-09T15:35:21Z

The v6.13-rc2 release included a bunch of breaking changes, specifically the MODULE_IMPORT_NS commit. Backmerge in order to fix them before the next pull-request. Include the fix from Stephen Roswell. Caused by commit 25c3fd1183c0 ("drm/virtio: Add a helper to map and note the dma addrs and lengths") Interacting with commit cdd30ebb1b9f ("module: Convert symbol namespace to string literal") Reported-by: Stephen Rothwell Link: https://patchwork.freedesktop.org/patch/msgid/20241209121717.2abe8026@canb.auug.org.au Signed-off-by: Maarten Lankhorst

drm: remove driver date from struct drm_driver and all drivers

2024-12-05T10:35:42Z

We stopped using the driver initialized date in commit 7fb8af6798e8 ("drm: deprecate driver date") and (eventually) started returning "0" for drm_version ioctl instead. Finish the job, and remove the unused date member from struct drm_driver, its initialization from drivers, along with the common DRIVER_DATE macros. v2: Also update drivers/accel (kernel test robot) Reviewed-by: Javier Martinez Canillas Acked-by: Alex Deucher Acked-by: Simon Ser Acked-by: Jeffrey Hugo Acked-by: Lucas De Marchi Acked-by: Dmitry Baryshkov # msm Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/1f2bf2543aed270a06f6c707fd6ed1b78bf16712.1733322525.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

Merge drm/drm-next into drm-misc-next

2024-12-02T11:44:18Z

Kickstart 6.14 cycle. Signed-off-by: Maxime Ripard

Get rid of 'remove_new' relic from platform driver struct

2024-12-01T23:12:43Z

The continual trickle of small conversion patches is grating on me, and is really not helping. Just get rid of the 'remove_new' member function, which is just an alias for the plain 'remove', and had a comment to that effect: /* * .remove_new() is a relic from a prototype conversion of .remove(). * New drivers are supposed to implement .remove(). Once all drivers are * converted to not use .remove_new any more, it will be dropped. */ This was just a tree-wide 'sed' script that replaced '.remove_new' with '.remove', with some care taken to turn a subsequent tab into two tabs to make things line up. I did do some minimal manual whitespace adjustment for places that used spaces to line things up. Then I just removed the old (sic) .remove_new member function, and this is the end result. No more unnecessary conversion noise. Signed-off-by: Linus Torvalds

drm/cirrus: Rename to cirrus-qemu

2024-11-26T13:21:51Z

This driver is only for Qemu's emulated Cirrus hardware. Name it accordingly. Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Link: https://patchwork.freedesktop.org/patch/msgid/20241029143928.208349-3-tzimmermann@suse.de

drm/cirrus: Use virtual encoder and connector types

2024-11-26T13:19:57Z

The cirrus driver only works on emulated Cirrus hardware. Use the correct types for encoder and connector. As a side effect, the connector has no longer an EDID property. But neither cirrus emulation nor driver provide any EDID data, so it makes sense to not pretend that there could be one. v2: - mention removed EDID property in commit description (Dmitry) Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Link: https://patchwork.freedesktop.org/patch/msgid/20241029143928.208349-2-tzimmermann@suse.de