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Use the fbdev emulation that is optimized for DMA helpers. Avoids
possible shadow buffering and makes the code simpler.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230313155138.20584-23-tzimmermann@suse.de
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Move the generic fbdev implementation into its own source and header
file. Adapt drivers. No functional changes, but some of the internal
helpers have been renamed to fit into the drm_fbdev_ naming scheme.
v3:
* rename drm_fbdev.{c,h} to drm_fbdev_generic.{c,h}
* rebase onto vmwgfx changes
* rebase onto xlnx changes
* fix include statements in amdgpu
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-22-tzimmermann@suse.de
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Add a mode parameter to the zynqmp_disp_layer_enable() to set the layer
mode, to prepare for live mode support.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The better convey its purpose, rename the zynqmp_dpsub_handle_vblank()
function that belongs to the DRM layer to
zynqmp_dpsub_drm_handle_vblank().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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To complete the decoupling of the DRM device from the zynqmp_dpsub,
group all DRM-related structures in a zynqmp_dpsub_drm structure and
allocate it separately from the zynqmp_dpsub. The DRM managed allocation
of the drm_device now doesn't cover the zynqmp_dpsub anymore, so we need
to register a cleanup action to release the zynqmp_dpsub when the
drm_device is released.
The will allow usage of the DisplayPort encoder as a standalone bridge,
without registering a DRM device in this driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Continue the isolation of DRM/KMS code by moving all DRM init and
cleanup from zynqmp_dpsub.c to zynqmp_kms.c.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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There's no need to delay bridge initialization, move it to
zynqmp_dp_probe() and drop the zynqmp_dp_drm_init() function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Decouple the planes handling from the display controller programming by
moving the corresponding code from zynqmp_disp.c to zynqmp_kms.c. This
prepares for using the DPSUB with a live video input, without creating
DRM planes in the DPSUB driver.
While at it, fix a typo in a comment.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Decouple the CRTC handling from the display controller programming by
moving the corresponding code from zynqmp_disp.c to zynqmp_kms.c. This
prepares for using the DPSUB with a live video input, without creating a
DRM CRTC in the DPSUB driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Start preparation for using the DPSUB as a standalone DisplayPort
encoder without a display controller by moving the DRM/KMS
initialization to a new zynqmp_kms.c file. No functional change
intended.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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