drm/amdgpu: dm: Convert to atomic_create_state

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The amdgpu display manager crtc implementation provides a custom reset
hook. However, this hook only allocates the state, initializes it with
__drm_atomic_helper_crtc_reset(), and frees the previous state. It
does not perform any hardware reset.

Since this is exactly what the atomic_create_state hook is meant to
do, minus the old state cleanup which the caller handles, convert the
implementation to use atomic_create_state with
__drm_atomic_helper_crtc_state_init() instead.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20260904-drm-no-more-crtc-reset-v3-7-27d9891512ce@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>

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Maxime Ripard 2026-09-04 11:07:25 +02:00

parent 0470f2047e

commit 32fbec62a3

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3 changed files with 33 additions and 23 deletions

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31

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c

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2

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h

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23

drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_crtc_test.c

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