diff options
| author | james qian wang (Arm Technology China) <james.qian.wang@arm.com> | 2019-01-22 14:10:48 +0300 |
|---|---|---|
| committer | Liviu Dudau <Liviu.Dudau@arm.com> | 2019-04-29 14:35:57 +0300 |
| commit | 59dd6d58a5332daa7af9a4c14defe0a80a9e195d (patch) | |
| tree | a6f2eea05d386487fefc638deda742033e5f662a /drivers/gpu/drm/arm/display/komeda/komeda_crtc.c | |
| parent | 552b831cd5e1d8ee0cf71e8af08734ef2b5aa7e4 (diff) | |
| download | linux-59dd6d58a5332daa7af9a4c14defe0a80a9e195d.tar.xz | |
drm/komeda: Add komeda_crtc_atomic_flush
A komeda flush is comprised two steps:
1. update pipeline/component state to HW.
2. call dev_func->flush to notify HW to kickoff the update.
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Diffstat (limited to 'drivers/gpu/drm/arm/display/komeda/komeda_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/arm/display/komeda/komeda_crtc.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c index 18209cae287c..40ee45d36ad6 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c @@ -62,8 +62,41 @@ void komeda_crtc_handle_event(struct komeda_crtc *kcrtc, DRM_DEBUG("FLIP Done.\n"); } +static void +komeda_crtc_do_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old) +{ + struct komeda_crtc *kcrtc = to_kcrtc(crtc); + struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc->state); + struct komeda_dev *mdev = kcrtc->base.dev->dev_private; + struct komeda_pipeline *master = kcrtc->master; + + DRM_DEBUG_ATOMIC("CRTC%d_FLUSH: active_pipes: 0x%x, affected: 0x%x.\n", + drm_crtc_index(crtc), + kcrtc_st->active_pipes, kcrtc_st->affected_pipes); + + /* step 1: update the pipeline/component state to HW */ + if (has_bit(master->id, kcrtc_st->affected_pipes)) + komeda_pipeline_update(master, old->state); + + /* step 2: notify the HW to kickoff the update */ + mdev->funcs->flush(mdev, master->id, kcrtc_st->active_pipes); +} + +static void +komeda_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old) +{ + /* commit with modeset will be handled in enable/disable */ + if (drm_atomic_crtc_needs_modeset(crtc->state)) + return; + + komeda_crtc_do_flush(crtc, old); +} + struct drm_crtc_helper_funcs komeda_crtc_helper_funcs = { .atomic_check = komeda_crtc_atomic_check, + .atomic_flush = komeda_crtc_atomic_flush, }; static const struct drm_crtc_funcs komeda_crtc_funcs = { |