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2024-05-10 cde9070d9970eef1f7ec2360586c802a16230ad8 
 kernel/drivers/video/fbdev/omap/omapfb_main.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Framebuffer driver for TI OMAP boards
34  *
....@@ -9,20 +10,6 @@
910  *   Juha Yrjola <juha.yrjola@nokia.com>   - Original driver and improvements
1011  *   Dirk Behme <dirk.behme@de.bosch.com>  - changes for 2.6 kernel API
1112  *   Texas Instruments                     - H3 support
12
- *
13
- * This program is free software; you can redistribute it and/or modify it
14
- * under the terms of the GNU General Public License as published by the
15
- * Free Software Foundation; either version 2 of the License, or (at your
16
- * option) any later version.
17
- *
18
- * This program is distributed in the hope that it will be useful, but
19
- * WITHOUT ANY WARRANTY; without even the implied warranty of
20
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21
- * General Public License for more details.
22
- *
23
- * You should have received a copy of the GNU General Public License along
24
- * with this program; if not, write to the Free Software Foundation, Inc.,
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- * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
2613  */
2714 #include <linux/platform_device.h>
2815 #include <linux/mm.h>
....@@ -47,11 +34,7 @@
4734 static unsigned int	def_rotate;
4835 static unsigned int	def_mirror;
4936 
50
-#ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
51
-static bool		manual_update = 1;
52
-#else
53
-static bool		manual_update;
54
-#endif
37
+static bool	manual_update = IS_BUILTIN(CONFIG_FB_OMAP_MANUAL_UPDATE);
5538 
5639 static struct platform_device	*fbdev_pdev;
5740 static struct lcd_panel		*fbdev_panel;
....@@ -270,7 +253,7 @@
270253 		if (fbdev->ctrl->setcolreg)
271254 			r = fbdev->ctrl->setcolreg(regno, red, green, blue,
272255 							transp, update_hw_pal);
273
-		/* Fallthrough */
256
+		fallthrough;
274257 	case OMAPFB_COLOR_RGB565:
275258 	case OMAPFB_COLOR_RGB444:
276259 		if (r != 0)
....@@ -460,6 +443,7 @@
460443 		return 0;
461444 	case 12:
462445 		var->bits_per_pixel = 16;
446
+		fallthrough;
463447 	case 16:
464448 		if (plane->fbdev->panel->bpp == 12)
465449 			plane->color_mode = OMAPFB_COLOR_RGB444;
....@@ -1064,7 +1048,7 @@
10641048 {
10651049 	struct omapfb_plane_struct *plane = fbi->par;
10661050 	struct omapfb_device	*fbdev = plane->fbdev;
1067
-	struct fb_ops		*ops = fbi->fbops;
1051
+	const struct fb_ops *ops = fbi->fbops;
10681052 	union {
10691053 		struct omapfb_update_window	update_window;
10701054 		struct omapfb_plane_info	plane_info;
....@@ -1259,7 +1243,7 @@
12591243 	size = 0;
12601244 	while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
12611245 		omapfb_get_caps(fbdev, plane, &caps);
1262
-		size += snprintf(&buf[size], PAGE_SIZE - size,
1246
+		size += scnprintf(&buf[size], PAGE_SIZE - size,
12631247 			"plane#%d %#010x %#010x %#010x\n",
12641248 			plane, caps.ctrl, caps.plane_color, caps.wnd_color);
12651249 		plane++;
....@@ -1280,28 +1264,28 @@
12801264 	size = 0;
12811265 	while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
12821266 		omapfb_get_caps(fbdev, plane, &caps);
1283
-		size += snprintf(&buf[size], PAGE_SIZE - size,
1267
+		size += scnprintf(&buf[size], PAGE_SIZE - size,
12841268 				 "plane#%d:\n", plane);
12851269 		for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
12861270 		     size < PAGE_SIZE; i++) {
12871271 			if (ctrl_caps[i].flag & caps.ctrl)
1288
-				size += snprintf(&buf[size], PAGE_SIZE - size,
1272
+				size += scnprintf(&buf[size], PAGE_SIZE - size,
12891273 					" %s\n", ctrl_caps[i].name);
12901274 		}
1291
-		size += snprintf(&buf[size], PAGE_SIZE - size,
1275
+		size += scnprintf(&buf[size], PAGE_SIZE - size,
12921276 				 " plane colors:\n");
12931277 		for (i = 0; i < ARRAY_SIZE(color_caps) &&
12941278 		     size < PAGE_SIZE; i++) {
12951279 			if (color_caps[i].flag & caps.plane_color)
1296
-				size += snprintf(&buf[size], PAGE_SIZE - size,
1280
+				size += scnprintf(&buf[size], PAGE_SIZE - size,
12971281 					"  %s\n", color_caps[i].name);
12981282 		}
1299
-		size += snprintf(&buf[size], PAGE_SIZE - size,
1283
+		size += scnprintf(&buf[size], PAGE_SIZE - size,
13001284 				 " window colors:\n");
13011285 		for (i = 0; i < ARRAY_SIZE(color_caps) &&
13021286 		     size < PAGE_SIZE; i++) {
13031287 			if (color_caps[i].flag & caps.wnd_color)
1304
-				size += snprintf(&buf[size], PAGE_SIZE - size,
1288
+				size += scnprintf(&buf[size], PAGE_SIZE - size,
13051289 					"  %s\n", color_caps[i].name);
13061290 		}
13071291 
....@@ -1515,8 +1499,6 @@
15151499 		fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
15161500 					fbdev->dev);
15171501 		if (fbi == NULL) {
1518
-			dev_err(fbdev->dev,
1519
-				"unable to allocate memory for plane info\n");
15201502 			planes_cleanup(fbdev);
15211503 			return -ENOMEM;
15221504 		}
....@@ -1549,20 +1531,27 @@
15491531 	case OMAPFB_ACTIVE:
15501532 		for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
15511533 			unregister_framebuffer(fbdev->fb_info[i]);
1534
+		fallthrough;
15521535 	case 7:
15531536 		omapfb_unregister_sysfs(fbdev);
1537
+		fallthrough;
15541538 	case 6:
15551539 		if (fbdev->panel->disable)
15561540 			fbdev->panel->disable(fbdev->panel);
1541
+		fallthrough;
15571542 	case 5:
15581543 		omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1544
+		fallthrough;
15591545 	case 4:
15601546 		planes_cleanup(fbdev);
1547
+		fallthrough;
15611548 	case 3:
15621549 		ctrl_cleanup(fbdev);
1550
+		fallthrough;
15631551 	case 2:
15641552 		if (fbdev->panel->cleanup)
15651553 			fbdev->panel->cleanup(fbdev->panel);
1554
+		fallthrough;
15661555 	case 1:
15671556 		dev_set_drvdata(fbdev->dev, NULL);
15681557 		kfree(fbdev);
....@@ -1865,7 +1854,7 @@
18651854 			case 'm':
18661855 			case 'M':
18671856 				vram *= 1024;
1868
-				/* Fall through */
1857
+				fallthrough;
18691858 			case 'k':
18701859 			case 'K':
18711860 				vram *= 1024;