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2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e 
 kernel/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
....@@ -1,30 +1,23 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Copyright (C) 2012 Texas Instruments
34  * Author: Rob Clark <robdclark@gmail.com>
4
- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
7
- * the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12
- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program.  If not, see <http://www.gnu.org/licenses/>.
165  */
6
+
7
+#include <linux/delay.h>
8
+#include <linux/dma-mapping.h>
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+#include <linux/of_graph.h>
10
+#include <linux/pm_runtime.h>
1711 
1812 #include <drm/drm_atomic.h>
1913 #include <drm/drm_atomic_helper.h>
2014 #include <drm/drm_crtc.h>
21
-#include <drm/drm_flip_work.h>
22
-#include <drm/drm_plane_helper.h>
23
-#include <linux/workqueue.h>
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-#include <linux/completion.h>
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-#include <linux/dma-mapping.h>
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-#include <linux/of_graph.h>
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-#include <linux/math64.h>
15
+#include <drm/drm_fb_cma_helper.h>
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+#include <drm/drm_fourcc.h>
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+#include <drm/drm_gem_cma_helper.h>
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+#include <drm/drm_modeset_helper_vtables.h>
19
+#include <drm/drm_print.h>
20
+#include <drm/drm_vblank.h>
2821 
2922 #include "tilcdc_drv.h"
3023 #include "tilcdc_regs.h"
....@@ -393,7 +386,7 @@
393386 		case DRM_FORMAT_XBGR8888:
394387 		case DRM_FORMAT_XRGB8888:
395388 			reg |= LCDC_V2_TFT_24BPP_UNPACK;
396
-			/* fallthrough */
389
+			fallthrough;
397390 		case DRM_FORMAT_BGR888:
398391 		case DRM_FORMAT_RGB888:
399392 			reg |= LCDC_V2_TFT_24BPP_MODE;
....@@ -525,6 +518,15 @@
525518 
526519 	drm_crtc_vblank_off(crtc);
527520 
521
+	spin_lock_irq(&crtc->dev->event_lock);
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+
523
+	if (crtc->state->event) {
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+		drm_crtc_send_vblank_event(crtc, crtc->state->event);
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+		crtc->state->event = NULL;
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+	}
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+
528
+	spin_unlock_irq(&crtc->dev->event_lock);
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+
528530 	tilcdc_crtc_disable_irqs(dev);
529531 
530532 	pm_runtime_put_sync(dev->dev);
....@@ -542,6 +544,18 @@
542544 				       struct drm_crtc_state *old_state)
543545 {
544546 	tilcdc_crtc_disable(crtc);
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+}
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+
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+static void tilcdc_crtc_atomic_flush(struct drm_crtc *crtc,
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+				     struct drm_crtc_state *old_state)
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+{
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+	if (!crtc->state->event)
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+		return;
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+
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+	spin_lock_irq(&crtc->dev->event_lock);
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+	drm_crtc_send_vblank_event(crtc, crtc->state->event);
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+	crtc->state->event = NULL;
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+	spin_unlock_irq(&crtc->dev->event_lock);
545559 }
546560 
547561 void tilcdc_crtc_shutdown(struct drm_crtc *crtc)
....@@ -657,9 +671,6 @@
657671 static int tilcdc_crtc_atomic_check(struct drm_crtc *crtc,
658672 				    struct drm_crtc_state *state)
659673 {
660
-	struct drm_display_mode *mode = &state->mode;
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-	int ret;
662
-
663674 	/* If we are not active we don't care */
664675 	if (!state->active)
665676 		return 0;
....@@ -668,12 +679,6 @@
668679 	    state->state->planes[0].state == NULL ||
669680 	    state->state->planes[0].state->crtc != crtc) {
670681 		dev_dbg(crtc->dev->dev, "CRTC primary plane must be present");
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-		return -EINVAL;
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-	}
673
-
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-	ret = tilcdc_crtc_mode_valid(crtc, mode);
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-	if (ret) {
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-		dev_dbg(crtc->dev->dev, "Mode \"%s\" not valid", mode->name);
677682 		return -EINVAL;
678683 	}
679684 
....@@ -728,13 +733,6 @@
728733 	.disable_vblank	= tilcdc_crtc_disable_vblank,
729734 };
730735 
731
-static const struct drm_crtc_helper_funcs tilcdc_crtc_helper_funcs = {
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-		.mode_fixup     = tilcdc_crtc_mode_fixup,
733
-		.atomic_check	= tilcdc_crtc_atomic_check,
734
-		.atomic_enable	= tilcdc_crtc_atomic_enable,
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-		.atomic_disable	= tilcdc_crtc_atomic_disable,
736
-};
737
-
738736 int tilcdc_crtc_max_width(struct drm_crtc *crtc)
739737 {
740738 	struct drm_device *dev = crtc->dev;
....@@ -749,7 +747,9 @@
749747 	return max_width;
750748 }
751749 
752
-int tilcdc_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode *mode)
750
+static enum drm_mode_status
751
+tilcdc_crtc_mode_valid(struct drm_crtc *crtc,
752
+		       const struct drm_display_mode *mode)
753753 {
754754 	struct tilcdc_drm_private *priv = crtc->dev->dev_private;
755755 	unsigned int bandwidth;
....@@ -837,6 +837,15 @@
837837 	return MODE_OK;
838838 }
839839 
840
+static const struct drm_crtc_helper_funcs tilcdc_crtc_helper_funcs = {
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+	.mode_valid	= tilcdc_crtc_mode_valid,
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+	.mode_fixup	= tilcdc_crtc_mode_fixup,
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+	.atomic_check	= tilcdc_crtc_atomic_check,
844
+	.atomic_enable	= tilcdc_crtc_atomic_enable,
845
+	.atomic_disable	= tilcdc_crtc_atomic_disable,
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+	.atomic_flush	= tilcdc_crtc_atomic_flush,
847
+};
848
+
840849 void tilcdc_crtc_set_panel_info(struct drm_crtc *crtc,
841850 		const struct tilcdc_panel_info *info)
842851 {