Unverified Commit 68e4a69a authored by Maxime Ripard's avatar Maxime Ripard
Browse files

drm/vc4: crtc: Create vblank reporting function 



We'll need that code in the HVS driver, so let's create a shared function
to reuse it.

Acked-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220711173939.1132294-15-maxime@cerno.tech
parent 4a955123

drivers/gpu/drm/vc4/vc4_crtc.c

+15 −8
Original line number Original line Diff line number Diff line
@@ -544,6 +544,20 @@ int vc4_crtc_disable_at_boot(struct drm_crtc *crtc) 
	return 0;

	return 0;

}

}





void vc4_crtc_send_vblank(struct drm_crtc *crtc)

{

	struct drm_device *dev = crtc->dev;

	unsigned long flags;



	if (!crtc->state || !crtc->state->event)

		return;



	spin_lock_irqsave(&dev->event_lock, flags);

	drm_crtc_send_vblank_event(crtc, crtc->state->event);

	crtc->state->event = NULL;

	spin_unlock_irqrestore(&dev->event_lock, flags);

}



static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,

static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,

				    struct drm_atomic_state *state)

				    struct drm_atomic_state *state)

{

{
@@ -567,14 +581,7 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, 
	 * Make sure we issue a vblank event after disabling the CRTC if

	 * Make sure we issue a vblank event after disabling the CRTC if

	 * someone was waiting it.

	 * someone was waiting it.

	 */

	 */

	if (crtc->state->event) {

	vc4_crtc_send_vblank(crtc);

		unsigned long flags;



		spin_lock_irqsave(&dev->event_lock, flags);

		drm_crtc_send_vblank_event(crtc, crtc->state->event);

		crtc->state->event = NULL;

		spin_unlock_irqrestore(&dev->event_lock, flags);

	}

}

}





static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,

static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,

drivers/gpu/drm/vc4/vc4_drv.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -862,6 +862,7 @@ void vc4_crtc_destroy_state(struct drm_crtc *crtc, 
			    struct drm_crtc_state *state);

			    struct drm_crtc_state *state);

void vc4_crtc_reset(struct drm_crtc *crtc);

void vc4_crtc_reset(struct drm_crtc *crtc);

void vc4_crtc_handle_vblank(struct vc4_crtc *crtc);

void vc4_crtc_handle_vblank(struct vc4_crtc *crtc);

void vc4_crtc_send_vblank(struct drm_crtc *crtc);

void vc4_crtc_get_margins(struct drm_crtc_state *state,

void vc4_crtc_get_margins(struct drm_crtc_state *state,

			  unsigned int *left, unsigned int *right,

			  unsigned int *left, unsigned int *right,

			  unsigned int *top, unsigned int *bottom);

			  unsigned int *top, unsigned int *bottom);