drm/sun4i/sun4i_crtc.c

37 static struct drm_encoder *sun4i_crtc_get_encoder(struct drm_crtc *crtc)
41 	drm_for_each_encoder(encoder, crtc->dev)
42 		if (encoder->crtc == crtc)
48 static int sun4i_crtc_atomic_check(struct drm_crtc *crtc,
52 									  crtc);
53 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
63 static void sun4i_crtc_atomic_begin(struct drm_crtc *crtc,
67 									 crtc);
68 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
69 	struct drm_device *dev = crtc->dev;
73 	if (crtc->state->event) {
74 		WARN_ON(drm_crtc_vblank_get(crtc) != 0);
77 		scrtc->event = crtc->state->event;
79 		crtc->state->event = NULL;
86 static void sun4i_crtc_atomic_flush(struct drm_crtc *crtc,
89 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
90 	struct drm_pending_vblank_event *event = crtc->state->event;
97 		crtc->state->event = NULL;
99 		spin_lock_irq(&crtc->dev->event_lock);
100 		if (drm_crtc_vblank_get(crtc) == 0)
101 			drm_crtc_arm_vblank_event(crtc, event);
103 			drm_crtc_send_vblank_event(crtc, event);
104 		spin_unlock_irq(&crtc->dev->event_lock);
108 static void sun4i_crtc_atomic_disable(struct drm_crtc *crtc,
111 	struct drm_encoder *encoder = sun4i_crtc_get_encoder(crtc);
112 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
116 	drm_crtc_vblank_off(crtc);
120 	if (crtc->state->event && !crtc->state->active) {
121 		spin_lock_irq(&crtc->dev->event_lock);
122 		drm_crtc_send_vblank_event(crtc, crtc->state->event);
123 		spin_unlock_irq(&crtc->dev->event_lock);
125 		crtc->state->event = NULL;
129 static void sun4i_crtc_atomic_enable(struct drm_crtc *crtc,
132 	struct drm_encoder *encoder = sun4i_crtc_get_encoder(crtc);
133 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
139 	drm_crtc_vblank_on(crtc);
142 static void sun4i_crtc_mode_set_nofb(struct drm_crtc *crtc)
144 	struct drm_display_mode *mode = &crtc->state->adjusted_mode;
145 	struct drm_encoder *encoder = sun4i_crtc_get_encoder(crtc);
146 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
161 static int sun4i_crtc_enable_vblank(struct drm_crtc *crtc)
163 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
165 	DRM_DEBUG_DRIVER("Enabling VBLANK on crtc %p\n", crtc);
172 static void sun4i_crtc_disable_vblank(struct drm_crtc *crtc)
174 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
176 	DRM_DEBUG_DRIVER("Disabling VBLANK on crtc %p\n", crtc);
230 	ret = drm_crtc_init_with_planes(drm, &scrtc->crtc,
240 	drm_crtc_helper_add(&scrtc->crtc, &sun4i_crtc_helper_funcs);
242 	/* Set crtc.port to output port node of the tcon */
243 	scrtc->crtc.port = of_graph_get_port_by_id(scrtc->tcon->dev->of_node,
246 	/* Set possible_crtcs to this crtc for overlay planes */
248 		uint32_t possible_crtcs = drm_crtc_mask(&scrtc->crtc);