drm/gem-atomic-helper: Create drm_gem_create_shadow_plane_state()

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The GEM shadow-plane helpers only expose reset functions
(drm_gem_reset_shadow_plane and __drm_gem_reset_shadow_plane) that
handle both the initial state allocation and the reset path. The new
atomic_create_state hook requires a function that only allocates and
initializes a pristine state without any side effect.

Create __drm_gem_shadow_plane_state_init() to initialize a
pre-allocated shadow plane state, and
drm_gem_create_shadow_plane_state() to allocate and initialize one
from scratch.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260814-drm-no-more-plane-reset-v2-2-82d2963dd134@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>

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Maxime Ripard 2026-08-14 16:56:51 +02:00

parent a8a198cefe

commit 3dcb0564c5

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42

drivers/gpu/drm/drm_gem_atomic_helper.c

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3

include/drm/drm_gem_atomic_helper.h

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