linux-toradex.git/drivers/gpu/drm/tiny/simpledrm.c, branch v6.13-rc2

Get rid of 'remove_new' relic from platform driver struct

2024-12-01T23:12:43+00:00

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/simpledrm: Use video aperture helpers

2024-10-14T13:28:48+00:00

DRM's aperture functions have long been implemented as helpers
under drivers/video/ for use with fbdev. Avoid the DRM wrappers by
calling the video functions directly.

Signed-off-by: Thomas Zimmermann 
Cc: Javier Martinez Canillas 
Acked-by: Javier Martinez Canillas 
Acked-by: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20240930130921.689876-18-tzimmermann@suse.de

drm/simpledrm: Run DRM default client setup

2024-09-26T07:31:28+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: Thomas Zimmermann 
Cc: Javier Martinez Canillas 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-59-tzimmermann@suse.de

drm/tiny/simpledrm: Use fbdev-shmem

2024-05-02T09:33:20+00:00

Implement fbdev emulation with fbdev-shmem. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.

Signed-off-by: Thomas Zimmermann 
Cc: Thomas Zimmermann 
Cc: Javier Martinez Canillas 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-18-tzimmermann@suse.de

drm/simpledrm: Add drm_panic support

2024-04-15T14:13:39+00:00

Add support for the drm_panic module, which displays a user-friendly
message to the screen when a kernel panic occurs.

v8:
 * Replace get_scanout_buffer() with drm_panic_set_buffer()
   (Thomas Zimmermann)

v9:
 * Revert to using get_scanout_buffer() (Sima)
 * move get_scanout_buffer() to plane helper functions (Thomas Zimmermann)

v12:
 * Use array for map and pitch in struct drm_scanout_buffer
   to support multi-planar format later. (Thomas Zimmermann)

Signed-off-by: Jocelyn Falempe 
Reviewed-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20240409163432.352518-7-jfalempe@redhat.com
Acked-by: Daniel Vetter

drm/simpledrm: Do not include

2023-12-06T09:36:18+00:00

Remove unnecessary include statements for .
The file contains helpers for non-atomic code and should not be
required by most drivers. No functional changes.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sui Jingfeng 
Reviewed-by: Javier Martinez Canillas 
Reviewed-by: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20231204090852.1650-8-tzimmermann@suse.de

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

2023-11-15T09:56:44+00:00

Let's kickstart the v6.8 release cycle.

Signed-off-by: Maxime Ripard

drm/simpledrm: Preallocate format-conversion buffer in atomic_check

2023-11-14T09:17:22+00:00

Preallocate the format-conversion state's storage in the plane's
atomic_check function if a format conversion is necessary. Allows
the update to fail if no memory is available. Avoids the same
allocation within atomic_update, which may not fail.

Also inline drm_plane_helper_atomic_check() into the driver and thus
return early for invisible planes. Avoids memory allocation entirely
in this case.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20231009141018.11291-6-tzimmermann@suse.de

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

BackMerge tag 'v6.6-rc7' into drm-next

2023-10-23T08:20:06+00:00

This is needed to add the msm pr which is based on a higher base.

Signed-off-by: Dave Airlie