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drm/komeda: Add komeda_crtc_funcs 

Added functions:
-  komeda_crtc_reset
-  komeda_crtc_vblank_enable
-  komeda_crtc_vblank_disable

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
hifive-unleashed-5.2
james qian wang (Arm Technology China) 2019-01-22 11:11:35 +00:00 committed by Liviu Dudau
parent 98fe3f93a9
commit d29da5d8cd
1 changed files with 48 additions and 0 deletions
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48
drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
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@ -351,6 +351,47 @@ struct drm_crtc_helper_funcs komeda_crtc_helper_funcs = {
.mode_fixup = komeda_crtc_mode_fixup,
};
static void komeda_crtc_reset(struct drm_crtc *crtc)
{
struct komeda_crtc_state *state;
if (crtc->state)
__drm_atomic_helper_crtc_destroy_state(crtc->state);
kfree(to_kcrtc_st(crtc->state));
crtc->state = NULL;
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (state) {
crtc->state = &state->base;
crtc->state->crtc = crtc;
}
}
static struct drm_crtc_state *
komeda_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
{
struct komeda_crtc_state *old = to_kcrtc_st(crtc->state);
struct komeda_crtc_state *new;
new = kzalloc(sizeof(*new), GFP_KERNEL);
if (!new)
return NULL;
__drm_atomic_helper_crtc_duplicate_state(crtc, &new->base);
new->affected_pipes = old->active_pipes;
return &new->base;
}
static void komeda_crtc_atomic_destroy_state(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
__drm_atomic_helper_crtc_destroy_state(state);
kfree(to_kcrtc_st(state));
}
static int komeda_crtc_vblank_enable(struct drm_crtc *crtc)
{
struct komeda_dev *mdev = crtc->dev->dev_private;
@ -369,6 +410,13 @@ static void komeda_crtc_vblank_disable(struct drm_crtc *crtc)
}
static const struct drm_crtc_funcs komeda_crtc_funcs = {
.gamma_set = drm_atomic_helper_legacy_gamma_set,
.destroy = drm_crtc_cleanup,
.set_config = drm_atomic_helper_set_config,
.page_flip = drm_atomic_helper_page_flip,
.reset = komeda_crtc_reset,
.atomic_duplicate_state = komeda_crtc_atomic_duplicate_state,
.atomic_destroy_state = komeda_crtc_atomic_destroy_state,
.enable_vblank = komeda_crtc_vblank_enable,
.disable_vblank = komeda_crtc_vblank_disable,
};