- 10 Jul, 2018 18 commits
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Boris Brezillon authored
Having a device with a status property != "okay" in the DT is a valid use case, and we should not prevent the registration of the DRM device when the DSI device connected to the DSI controller is disabled. Consider the ENODEV return code as a valid result and do not expose the DSI encoder/connector when it happens. Signed-off-by:
Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by:
Eric Anholt <eric@anholt.net> Signed-off-by:
Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180509130042.9435-5-boris.brezillon@bootlin.com
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Boris Brezillon authored
There's no point searching for a drm_bridge or drm_panel if the OF node we're pointing has a status property that is not "okay" or "ok". Just return -ENODEV in this case. Signed-off-by:
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Boris Brezillon authored
DT nodes might be present in the DT but with a status property set to "disabled" or "fail". In this case, we should not return -EPROBE_DEFER when the caller asks for a drm_panel instance. Return -ENODEV instead. Signed-off-by:
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Boris Brezillon authored
Right now, the DRM panel logic returns NULL when a panel pointing to the passed OF node is not present in the list of registered panels. Most drivers interpret this NULL value as -EPROBE_DEFER, but we are about to modify the semantic of of_drm_find_panel() and let the framework return -ENODEV when the device node we're pointing to has a status property that is not equal to "okay" or "ok". Let's first patch the of_drm_find_panel() implementation to return ERR_PTR(-EPROBE_DEFER) instead of NULL and patch all callers to replace the '!panel' check by an 'IS_ERR(panel)' one. Signed-off-by:
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Philipp Zabel authored
This patch adds support for DLC DLC0700YZG-1 1024x600 LVDS panels to the simple-panel driver. Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de> [m.felsch@pengutronix.de: fix typo in compatible dt-binding] [m.felsch@pengutronix.de: add property bindings] Signed-off-by:
Marco Felsch <m.felsch@pengutronix.de> Reviewed-by:
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Philipp Zabel authored
DLC provides a wide range of display solutions. Website: http://www.dlcdisplay.com/Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Jan Tuerk authored
The Emerging Display Technology ETM0700G0EDH6 is the uses the same panel as the ETM0700G0BDH6. It differs in the hardware design for the backlight and the touchscreen i2c interface. As the new display type has different requirements for drive-strengths on the i2c-bus, add an additional compatible to allow the handling of it or warn about incompatible cpu and display combinations. Signed-off-by:
Jan Tuerk <jan.tuerk@emtrion.com> Signed-off-by:
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Jan Tuerk authored
The Emerging Display Technology ETM0700G0BDH6 is exactly the same display as the ETM0700G0DH6, exept the pixelclock polarity. Therefore re-use the ETM0700G0DH6 modes. It is used by default on emtrion Avari based development kits. Signed-off-by:
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Jan Tuerk authored
Document the Emerging Display Technology Corp. (EDT) using the simple-panel binding in one single file. Reviewed-by:
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Jagan Teki authored
This adds support for the Rocktech Display Ltd. RK070ER9427 800(RGB)x480 TFT LCD panel, which can be supported by the simple panel driver. Signed-off-by:
Jagan Teki <jagan@amarulasolutions.com> Reviewed-by:
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Noralf Trønnes authored
Remove drm_fb_cma_fbdev_init_with_funcs(), its only user tinydrm has moved to drm_fbdev_generic_setup(). Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Noralf Trønnes <noralf@tronnes.org> Reviewed-by:
David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-9-noralf@tronnes.org
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Noralf Trønnes authored
Make full use of the generic fbdev client. Cc: David Lechner <david@lechnology.com> Signed-off-by:
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Noralf Trønnes authored
This adds a drm_fbdev_generic_setup() function that sets up generic fbdev emulation with client callbacks for restore, hotplug and unregister. Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-7-noralf@tronnes.org
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Noralf Trønnes authored
Print the names of the internal clients currently attached. Reviewed-by:
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Noralf Trønnes authored
This switches the CMA helper drivers that use its fbdev emulation over to the generic fbdev emulation. It's the first phase of using generic fbdev. A later phase will use DRM client callbacks for the lastclose/hotplug/remove callbacks. There are currently 2 fbdev init/fini functions: - drm_fb_cma_fbdev_init/drm_fb_cma_fbdev_fini - drm_fbdev_cma_init/drm_fbdev_cma_fini This is because the work on generic fbdev came up during a fbdev refactoring and thus wasn't completed. No point in completing that refactoring when drivers will soon move to drm_fb_helper_generic_probe(). tinydrm uses drm_fb_cma_fbdev_init_with_funcs(). Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Noralf Trønnes authored
These are needed for pl111 to use the generic fbdev emulation. Cc: Eric Anholt <eric@anholt.net> Signed-off-by:
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Noralf Trønnes authored
This is the first step in getting generic fbdev emulation. A drm_fb_helper_funcs.fb_probe function is added which uses the DRM client API to get a framebuffer backed by a dumb buffer. Signed-off-by:
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Noralf Trønnes authored
This the beginning of an API for in-kernel clients. First out is a way to get a framebuffer backed by a dumb buffer. Only GEM drivers are supported. The original idea of using an exported dma-buf was dropped because it also creates an anonomous file descriptor which doesn't work when the buffer is created from a kernel thread. The easy way out is to use drm_driver.gem_prime_vmap to get the virtual address, which requires a GEM object. This excludes the vmwgfx driver which is the only non-GEM driver apart from the legacy ones. A solution for vmwgfx will have to be worked out later if it wants to support the client API which it probably will when we have a bootsplash client. Suggested-by:
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- 09 Jul, 2018 1 commit
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Arnd Bergmann authored
Without this, we get link errors during randconfig build: drivers/gpu/drm/vkms/vkms_drv.o:(.rodata+0xa0): undefined reference to `drm_atomic_helper_check' drivers/gpu/drm/vkms/vkms_drv.o:(.rodata+0xa8): undefined reference to `drm_atomic_helper_commit' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x0): undefined reference to `drm_atomic_helper_update_plane' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x8): undefined reference to `drm_atomic_helper_disable_plane' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x18): undefined reference to `drm_atomic_helper_plane_reset' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x28): undefined reference to `drm_atomic_helper_plane_duplicate_state' drivers/gpu/drm/vkms/vkms_plane.o:(.rodata+0x30): undefined reference to `drm_atomic_helper_plane_destroy_state' drivers/gpu/drm/vkms/vkms_output.o:(.rodata+0x1c0): undefined reference to `drm_helper_probe_single_connector_modes' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x40): undefined reference to `drm_atomic_helper_crtc_reset' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x70): undefined reference to `drm_atomic_helper_set_config' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x78): undefined reference to `drm_atomic_helper_page_flip' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x90): undefined reference to `drm_atomic_helper_crtc_duplicate_state' drivers/gpu/drm/vkms/vkms_crtc.o:(.rodata+0x98): undefined reference to `drm_atomic_helper_crtc_destroy_state' Fixes: 854502fa ("drm/vkms: Add basic CRTC initialization") Fixes: 1c7c5fd9 ("drm/vkms: Introduce basic VKMS driver") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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- 07 Jul, 2018 9 commits
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Boris Brezillon authored
The transposer block is providing support for mem-to-mem composition, which is exposed as a drm_writeback connector in DRM. Add a driver to support this feature. Signed-off-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by:
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Boris Brezillon authored
Mimic what is done in drm_atomic_commit_tail() and call drm_atomic_helper_fake_vblank() so that VBLANK events are faked when the drm_crtc_state.no_vblank is true. Will be needed when we'll add support for the transposer block. Signed-off-by:
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Boris Brezillon authored
Now that we have a way to fake VBLANK events when requested by the CRTC hook it up to the generic commit_tail() helpers. Signed-off-by:
Liviu Dudau <liviu.dudau@arm.com> Reviewed-by:
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Boris Brezillon authored
In some cases CRTCs are active but are not able to generating events, at least not at every frame at it's expected to. This is typically the case when the CRTC is feeding a writeback connector that has no job queued. In this situation the CRTC is usually stopped until a new job is queued, and this can lead to timeouts when part of the pipeline is updated but no new jobs are queued to the active writeback connector. In order to solve that, we add a ->no_vblank flag to drm_crtc_state and ask the CRTC drivers to set it to true when they know they're not able to generate VBLANK events. The core drm_atomic_helper_fake_vblank() helper can then be used to fake VBLANKs at commit time. Signed-off-by:
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Boris Brezillon authored
drm_atomic_helper_wait_for_vblanks() assumes the CRTC will continuously generate VBLANK events and the vblank counter will keep increasing. While this work for a regular pipeline, it doesn't when you have the CRTC is feeding the transposer block, because this block works in oneshot mode, and, by the time we reach drm_atomic_helper_wait_for_vblanks() the only VBLANK event might have already been sent and the VBLANK counter will stay unchanged, thus triggering a timeout. Luckily, we can replace the drm_atomic_helper_wait_for_vblanks() call by drm_atomic_helper_wait_for_flip_done() because the only thing we want to check when calling drm_atomic_helper_wait_for_vblanks() from vc4_atomic_complete_commit() is that new FBs are in use and the old ones can be safely released. Signed-off-by:
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Boris Brezillon authored
Not all writeback connector implementations might want to commit things from the connector driver. Some, like the malidp driver, commit things from their main commit_tail() function, and would rather not have to implement a dummy hook for drm_connector_helper_funcs.atomic_commit(). Make this function optional and reflect this fact in the doc. Signed-off-by:
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Boris Brezillon authored
Other atomic hooks are passed state objects, let's change this one to be consistent. Signed-off-by:
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Boris Brezillon authored
Use container_of() instead of type casting so that it keeps working even if base is moved inside the drm_writeback_connector struct. Signed-off-by:
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Boris Brezillon authored
Fix the bullet list declaration in the overview section. Signed-off-by:
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- 06 Jul, 2018 7 commits
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Gustavo Padovan authored
Pull in the malidp writeback implementation for further work on writeback in drm-misc-next. Signed-off-by:Gustavo Padovan <gustavo.padovan@collabora.com>
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Maarten Lankhorst authored
This reduces the amount of spam when you debug a CRC reading program. Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> [mlankhorst: Change bool overflow to was_overflow (Ville)] Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180418125121.72081-1-maarten.lankhorst@linux.intel.com
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Yannick Fertre authored
Reset must be properly assert before deassert. This is important if there is an early boot splash screen before the kernel start up. Signed-off-by:
Yannick Fertre <yannick.fertre@st.com> Reviewed-by:
Philippe Cornu <philippe.cornu@st.com> Tested-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1530271355-5608-1-git-send-email-yannick.fertre@st.com
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Yannick Fertre authored
Filter the requested mode pixel clock frequency according to the pad maximum supported frequency. Signed-off-by:
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Benjamin Gaignard authored
When dumping plane state print normalized zpos value as done for the other plane state fields. Signed-off-by:
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git://linux-arm.org/linux-ldDave Airlie authored
"mali-dp driver changes for drm-next, includes the driver implementation for writeback, improvements for power management handling in the driver and a debugfs entry for reporting possible internal errors. Please pull at your earliest convenience. Boris Brezillon is also interested in this pull as he is going to change slightly the parameter for the writeback connector's atomic_commit() and he needs to fix the mali-dp driver in his series." Signed-off-by:
Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180705144408.GH15340@e110455-lin.cambridge.arm.com
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git://anongit.freedesktop.org/drm/drm-miscDave Airlie authored
drm-misc-next for 4.19: UAPI Changes: v3d: add fourcc modicfier for fourcc for the Broadcom UIF format (Eric Anholt) Cross-subsystem Changes: console/fbcon: Add support for deferred console takeover (Hans de Goede) Core Changes: dma-fence clean up, improvements and docs (Daniel Vetter) add mask function for crtc, plane, encoder and connector DRM objects(Ville Syrjälä) Driver Changes: pl111: add Nomadik LCDC variant (Linus Walleij) Signed-off-by:
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- 05 Jul, 2018 5 commits
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git://people.freedesktop.org/~thomash/linuxDave Airlie authored
A patchset worked out together with Peter Zijlstra. Ingo is OK with taking it through the DRM tree: This is a small fallout from a work to allow batching WW mutex locks and unlocks. Our Wound-Wait mutexes actually don't use the Wound-Wait algorithm but the Wait-Die algorithm. One could perhaps rename those mutexes tree-wide to "Wait-Die mutexes" or "Deadlock Avoidance mutexes". Another approach suggested here is to implement also the "Wound-Wait" algorithm as a per-WW-class choice, as it has advantages in some cases. See for example http://www.mathcs.emory.edu/~cheung/Courses/554/Syllabus/8-recv+serial/deadlock-compare.html Now Wound-Wait is a preemptive algorithm, and the preemption is implemented using a lazy scheme: If a wounded transaction is about to go to sleep on a contended WW mutex, we return -EDEADLK. That is sufficient for deadlock prevention. Since with WW mutexes we also require the aborted transaction to sleep waiting to lock the WW mutex it was aborted on, this choice also provides a suitable WW mutex to sleep on. If we were to return -EDEADLK on the first WW mutex lock after the transaction was wounded whether the WW mutex was contended or not, the transaction might frequently be restarted without a wait, which is far from optimal. Note also that with the lazy preemption scheme, contrary to Wait-Die there will be no rollbacks on lock contention of locks held by a transaction that has completed its locking sequence. The modeset locks are then changed from Wait-Die to Wound-Wait since the typical locking pattern of those locks very well matches the criterion for a substantial reduction in the number of rollbacks. For reservation objects, the benefit is more unclear at this point and they remain using Wait-Die. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linuxDave Airlie authored
omapdrm changes for 4.19 * Workaround for DRA7 errata i932 * Fix mm_list locking * Cleanups Signed-off-by:
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Ville Syrjälä authored
Using += to set the bits in a mask looks funny. It works in this case because we never set the same bit twice. But let's switch to |= to make this look more regular. Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
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Eric Anholt authored
Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Acked-by:
Daniel Vetter <daniel@ffwll.ch>
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Eric Anholt authored
This was a failure of "git add" on my part -- we already referenced the doc from drivers.rst. Signed-off-by:
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