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drm/exynos: add exynos specific .atomic_commit()
exynos needs to update planes with the crtc enabled (mainly for the FIMD case) so this specific atomic commit changes the order of drm_atomic_helper_commit_modeset_enables() and drm_atomic_helper_commit_planes() to commit planes after we enable crtc and encoders. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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1 changed files with 32 additions and 1 deletions
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@ -16,6 +16,7 @@
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <uapi/drm/exynos_drm.h>
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@ -270,7 +271,37 @@ static int exynos_atomic_commit(struct drm_device *dev,
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struct drm_atomic_state *state,
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bool async)
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{
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return drm_atomic_helper_commit(dev, state, false);
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int ret;
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ret = drm_atomic_helper_prepare_planes(dev, state);
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if (ret)
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return ret;
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/* This is the point of no return */
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drm_atomic_helper_swap_state(dev, state);
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drm_atomic_helper_commit_modeset_disables(dev, state);
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drm_atomic_helper_commit_modeset_enables(dev, state);
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/*
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* Exynos can't update planes with CRTCs and encoders disabled,
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* its updates routines, specially for FIMD, requires the clocks
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* to be enabled. So it is necessary to handle the modeset operations
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* *before* the commit_planes() step, this way it will always
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* have the relevant clocks enabled to perform the update.
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*/
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drm_atomic_helper_commit_planes(dev, state);
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drm_atomic_helper_wait_for_vblanks(dev, state);
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drm_atomic_helper_cleanup_planes(dev, state);
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drm_atomic_state_free(state);
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return 0;
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}
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static const struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
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