linux-toradex.git/drivers/gpu/drm/tiny/st7586.c, branch v6.14

drm: remove driver date from struct drm_driver and all drivers

2024-12-05T10:35:42+00:00

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

drm/client: Move public client header to clients/ subdirectory

2024-11-15T08:42:13+00:00

Move the public header file drm_client_setup.h to the clients/
subdirectory and update all drivers. No functional changes.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20241108154600.126162-3-tzimmermann@suse.de

drm/st7586: Run DRM default client setup

2024-09-26T07:31:27+00:00

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: David Lechner 
Acked-by: David Lechner 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-44-tzimmermann@suse.de

drm/tiny/st7586: Use fbdev-dma

2024-05-02T09:33:31+00:00

Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by st7586. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann 
Cc: David Lechner 
Acked-by: David Lechner 
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-41-tzimmermann@suse.de

drm/tiny: st7586: drop driver owner assignment

2024-04-26T14:03:19+00:00

Core in spi_register_driver() already sets the .owner, so driver
does not need to.

Signed-off-by: Krzysztof Kozlowski 
Acked-by: David Lechner 
Signed-off-by: Noralf Trønnes 
Link: https://patchwork.freedesktop.org/patch/msgid/20240327174842.519758-4-krzysztof.kozlowski@linaro.org

drm/format-helper: Pass format-conversion state to helpers

2023-11-14T09:16:53+00:00

Pass an instance of struct drm_format_conv_state to DRM's format
conversion helpers. Update all callers.

Most drivers can use the format-conversion state from their shadow-
plane state. The shadow plane's destroy function releases the
allocated buffer. Drivers will later be able to allocate a buffer
of appropriate size in their plane's atomic_check code.

The gud driver uses a separate thread for committing updates. For
now, the update worker contains its own format-conversion state.

Images in the format-helper tests are small. The tests preallocate
a static page for the temporary buffer. Unloading the module releases
the memory.

v6:
	* update patch for ssd132x support
v5:
	* avoid using unusupported shadow-plane state in repaper (Noralf)
	* fix documentation (Noralf, kernel test robot)
v3:
	* store buffer in shadow-plane state (Javier, Maxime)
	* replace ARRAY_SIZE() with sizeof() (Jani)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Tested-by: Javier Martinez Canillas  # ssd130x
Cc: Noralf Trønnes 
Cc: Javier Martinez Canillas 
Cc: Gerd Hoffmann 
Cc: David Lechner 
Link: https://patchwork.freedesktop.org/patch/msgid/20231009141018.11291-4-tzimmermann@suse.de

drm/mipi-dbi: Move drm_dev_{enter, exit}() out from fb_dirty functions

2022-12-05T13:21:18+00:00

Call drm_dev_enter() and drm_dev_exit() in the outer-most callbacks
of the modesetting pipeline. If drm_dev_enter() fails, the driver can
thus avoid unnecessary work.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Noralf Trønnes 
Tested-by: Javier Martinez Canillas 
Tested-by: Noralf Trønnes  # drm/tiny/mi0283qt
Link: https://patchwork.freedesktop.org/patch/msgid/20221202125644.7917-9-tzimmermann@suse.de

drm/mipi-dbi: Use shadow-plane mappings

2022-12-05T13:21:18+00:00

Use the buffer mappings provided by shadow-plane helpers. As the
mappings are established while the commit can still fail, errors
are now reported correctly to callers.

v2:
	* use shadow-plane state directly (Noralf)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Noralf Trønnes 
Tested-by: Javier Martinez Canillas 
Tested-by: Noralf Trønnes  # drm/tiny/mi0283qt
Link: https://patchwork.freedesktop.org/patch/msgid/20221202125644.7917-8-tzimmermann@suse.de

drm/mipi-dbi: Support shadow-plane state

2022-12-05T13:20:43+00:00

Implement MIPI DBI planes with struct drm_shadow_plane_state, so that the
respective drivers can use the vmap'ed GEM-buffer memory. Implement state
helpers, the {begin,end}_fb_access helpers and wire up everything.

With this commit, MIPI DBI drivers can access the GEM object's memory
that is provided by shadow-plane state. The actual changes to drivers
are implemented separately.

v2:
	* use shadow-plane state directly (Noralf)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Noralf Trønnes 
Tested-by: Javier Martinez Canillas 
Tested-by: Noralf Trønnes  # drm/tiny/mi0283qt
Link: https://patchwork.freedesktop.org/patch/msgid/20221202125644.7917-7-tzimmermann@suse.de

drm/mipi-dbi: Prepare framebuffer copy operation in pipe-update helpers

2022-12-05T12:36:33+00:00

Move the vmap/vunmap blocks from the inner fb_dirty helpers into the
MIPI DBI update helpers. The function calls can result in waiting and/or
processing overhead. Reduce the penalties by executing the functions once
in the outer-most function of the pipe update.

This change also prepares for MIPI DBI for shadow-plane helpers. With
shadow-plane helpers, transfer source buffers are mapped into kernel
address space automatically.

v2:
	* keep each driver's existing buffer-mapping patter (Noralf)
	* zero-initialize iosys_map arrays (Noralf)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Noralf Trønnes 
Tested-by: Javier Martinez Canillas 
Tested-by: Noralf Trønnes  # drm/tiny/mi0283qt
Link: https://patchwork.freedesktop.org/patch/msgid/20221202125644.7917-6-tzimmermann@suse.de