kernel.git/drivers/gpu/drm/xlnx, branch linux-6.14.y

drm: zynqmp_dp: Fix a deadlock in zynqmp_dp_ignore_hpd_set()

2025-04-10T12:44:15Z

[ Upstream commit f887685ee0eb4ef716391355568181230338f6eb ] Instead of attempting the same mutex twice, lock and unlock it. This bug has been detected by the Clang thread-safety analyzer. Cc: Sean Anderson Cc: Tomi Valkeinen Fixes: 28edaacb821c ("drm: zynqmp_dp: Add debugfs interface for compliance testing") Signed-off-by: Bart Van Assche Reviewed-by: Sean Anderson Signed-off-by: Sean Anderson Reviewed-by: Laurent Pinchart Reviewed-by: Sean Anderson Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20250207162528.1651426-2-sean.anderson@linux.dev Signed-off-by: Sasha Levin

drm: xlnx: zynqmp_dpsub: Add NULL check in zynqmp_audio_init

2025-04-10T12:44:15Z

[ Upstream commit d0660f9c588a1246a1a543c91a1e3cad910237da ] devm_kasprintf() calls can return null pointers on failure. But some return values were not checked in zynqmp_audio_init(). Add NULL check in zynqmp_audio_init(), avoid referencing null pointers in the subsequent code. Fixes: 3ec5c1579305 ("drm: xlnx: zynqmp_dpsub: Add DP audio support") Reviewed-by: Laurent Pinchart Signed-off-by: Charles Han Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20250211102049.6468-1-hanchunchao@inspur.com Signed-off-by: Sasha Levin

drm: xlnx: zynqmp: Fix max dma segment size

2025-04-10T12:44:15Z

[ Upstream commit 28b529a98525123acd37372a04d21e87ec2edcf7 ] Fix "mapping sg segment longer than device claims to support" warning by setting the max segment size. Fixes: d76271d22694 ("drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem") Reviewed-by: Sean Anderson Tested-by: Sean Anderson Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20250115-xilinx-formats-v2-10-160327ca652a@ideasonboard.com Signed-off-by: Sasha Levin

Merge tag 'drm-misc-next-fixes-2025-01-24' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2025-01-24T16:06:06Z

drm-misc-next-fixes for v6.14-rc1: - Fix a serious regression from commit e4b5ccd392b9 ("drm/v3d: Ensure job pointer is set to NULL after job completion") - dmem cgroup Kconfig fix (acked by Tejun) - virtio: uaf in dma_buf free path - xlnx: kerneldoc Signed-off-by: Simona Vetter From: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/0d4a18f4-222c-4767-9169-e6350ce8fea5@linux.intel.com

Merge tag 'drm-misc-fixes-2025-01-24' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2025-01-24T10:26:41Z

Short summary of fixes pull: bochs: - Fix double-free on driver removal client: - Improve support for tile-based modes - Fix fbdev Kconfig select rules xlnx: - zynqmp_dp: Add locking to DP-bridge enable helper Signed-off-by: Simona Vetter From: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20250124082932.GA13715@linux.fritz.box

drm: zynqmp_dp: Unlock on error in zynqmp_dp_bridge_atomic_enable()

2025-01-24T07:26:45Z

We added some locking to this function, but accidentally forgot to unlock if zynqmp_dp_mode_configure() failed. Use a guard lock to fix it. Fixes: a7d5eeaa57d7 ("drm: zynqmp_dp: Add locking") Signed-off-by: Dan Carpenter Reviewed-by: Sean Anderson Reviewed-by: Laurent Pinchart Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/b4042bd9-c943-4738-a2e1-8647259137c6@stanley.mountain

drm: xlnx: zynqmp_dpsub: Fix kernel doc

2025-01-16T11:45:16Z

Fix two kernel doc warnings introduced by the recent DP audio patch: - Add a doc line for the new "audio" field - Remove a reference to zynqmp_dpsub.c from zynqmp.rst, as the .c file no longer has structured comments Fixes: 3ec5c1579305 ("drm: xlnx: zynqmp_dpsub: Add DP audio support") Closes: https://lore.kernel.org/all/20241220154208.720d990b@canb.auug.org.au/ Reviewed-by: Vishal Sagar Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20241220-xilinx-dp-audio-doc-fix-v1-1-cc488996e463@ideasonboard.com (cherry picked from commit 96b5d2e807f667320c66f41ddc1c473023a73ab2) Signed-off-by: Maxime Ripard

drm: xlnx: zynqmp_dpsub: Add DP audio support

2024-12-19T06:54:00Z

Add basic DisplayPort audio support. Support non-live audio playback from two PCMs (DMA channels), and the volume control in the audio mixer. As older dtb files may not have the audio DMA channels defined, the driver will just mark the audio support as disabled if the audio DMA is missing, and will continue with only display support. Note: Reset doesn't seem to work (ZYNQMP_DISP_AUD_SOFT_RESET). If we do a reset, audio playback won't start again even if, afaics, we do set up all the necessary registers. So, at the moment, resetting the audio block in dp_dai_hw_free() is commented out. Tested-by: Anatoliy Klymenko Reviewed-by: Vishal Sagar Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20241023-xilinx-dp-audio-v4-3-5128881457be@ideasonboard.com

drm: zynqmp_dp: Fix integer overflow in zynqmp_dp_rate_get()

2024-12-16T10:03:30Z

This patch fixes a potential integer overflow in the zynqmp_dp_rate_get() The issue comes up when the expression drm_dp_bw_code_to_link_rate(dp->test.bw_code) * 10000 is evaluated using 32-bit Now the constant is a compatible 64-bit type. Resolves coverity issues: CID 1636340 and CID 1635811 Cc: stable@vger.kernel.org Fixes: 28edaacb821c ("drm: zynqmp_dp: Add debugfs interface for compliance testing") Signed-off-by: Karol Przybylski Reviewed-by: Laurent Pinchart Link: https://lore.kernel.org/stable/20241212095057.1015146-1-karprzy7%40gmail.com Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20241215125355.938953-1-karprzy7@gmail.com

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