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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c 
 kernel/drivers/video/fbdev/macfb.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * macfb.c: Generic framebuffer for Macs whose colourmaps/modes we
34  * don't know how to set.
....@@ -17,10 +18,6 @@
1718  *
1819  * The VideoToolbox "Bugs" web page at
1920  * http://rajsky.psych.nyu.edu/Tips/VideoBugs.html
20
- *
21
- * This code is free software.  You may copy, modify, and distribute
22
- * it subject to the terms and conditions of the GNU General Public
23
- * License, version 2, or any later version, at your convenience.
2421  */
2522 
2623 #include <linux/module.h>
....@@ -120,10 +117,7 @@
120117 #define PIXEL_TO_MM(a)	(((a)*10)/28)	/* width in mm at 72 dpi */
121118 
122119 static struct fb_var_screeninfo macfb_defined = {
123
-	.bits_per_pixel	= 8,
124120 	.activate	= FB_ACTIVATE_NOW,
125
-	.width		= -1,
126
-	.height		= -1,
127121 	.right_margin	= 32,
128122 	.upper_margin	= 16,
129123 	.lower_margin	= 4,
....@@ -139,7 +133,6 @@
139133 static void *slot_addr;
140134 static struct fb_info fb_info;
141135 static u32 pseudo_palette[16];
142
-static int inverse;
143136 static int vidtest;
144137 
145138 /*
....@@ -152,7 +145,7 @@
152145 			   unsigned int green, unsigned int blue,
153146 			   struct fb_info *info)
154147 {
155
-	static int lastreg = -1;
148
+	static int lastreg = -2;
156149 	unsigned long flags;
157150 
158151 	local_irq_save(flags);
....@@ -201,9 +194,6 @@
201194 	unsigned int bpp = info->var.bits_per_pixel;
202195 	unsigned long flags;
203196 
204
-	if (bpp > 8)
205
-		return 1; /* failsafe */
206
-
207197 	local_irq_save(flags);
208198 
209199 	/* On these chips, the CLUT register numbers are spread out
....@@ -233,9 +223,6 @@
233223 			  struct fb_info *info)
234224 {
235225 	unsigned long flags;
236
-
237
-	if (info->var.bits_per_pixel > 8)
238
-		return 1; /* failsafe */
239226 
240227 	local_irq_save(flags);
241228 
....@@ -353,9 +340,6 @@
353340 	unsigned long flags;
354341 	int clut_status;
355342 	
356
-	if (info->var.bits_per_pixel > 8)
357
-		return 1; /* failsafe */
358
-
359343 	local_irq_save(flags);
360344 
361345 	/* Set the register address */
....@@ -494,7 +478,7 @@
494478 			break;
495479 		/*
496480 		 * 24-bit colour almost doesn't exist on 68k Macs --
497
-		 * http://support.apple.com/kb/TA28634 (Old Article: 10992)
481
+		 * https://support.apple.com/kb/TA28634 (Old Article: 10992)
498482 		 */
499483 		case 24:
500484 		case 32:
....@@ -512,7 +496,7 @@
512496 	return 0;
513497 }
514498 
515
-static struct fb_ops macfb_ops = {
499
+static const struct fb_ops macfb_ops = {
516500 	.owner		= THIS_MODULE,
517501 	.fb_setcolreg	= macfb_setcolreg,
518502 	.fb_fillrect	= cfb_fillrect,
....@@ -532,7 +516,7 @@
532516 			continue;
533517 
534518 		if (!strcmp(this_opt, "inverse"))
535
-			inverse = 1;
519
+			fb_invert_cmaps();
536520 		else
537521 			if (!strcmp(this_opt, "vidtest"))
538522 				vidtest = 1; /* enable experimental CLUT code */
....@@ -688,17 +672,14 @@
688672 		case NUBUS_DRHW_APPLE_MDC:
689673 			strcpy(macfb_fix.id, "Mac Disp. Card");
690674 			macfb_setpalette = mdc_setpalette;
691
-			macfb_defined.activate = FB_ACTIVATE_NOW;
692675 			break;
693676 		case NUBUS_DRHW_APPLE_TFB:
694677 			strcpy(macfb_fix.id, "Toby");
695678 			macfb_setpalette = toby_setpalette;
696
-			macfb_defined.activate = FB_ACTIVATE_NOW;
697679 			break;
698680 		case NUBUS_DRHW_APPLE_JET:
699681 			strcpy(macfb_fix.id, "Jet");
700682 			macfb_setpalette = jet_setpalette;
701
-			macfb_defined.activate = FB_ACTIVATE_NOW;
702683 			break;
703684 		default:
704685 			strcpy(macfb_fix.id, "Generic NuBus");
....@@ -731,7 +712,6 @@
731712 			strcpy(macfb_fix.id, "DAFB");
732713 			macfb_setpalette = dafb_setpalette;
733714 			dafb_cmap_regs = ioremap(DAFB_BASE, 0x1000);
734
-			macfb_defined.activate = FB_ACTIVATE_NOW;
735715 			break;
736716 
737717 		/*
....@@ -741,7 +721,6 @@
741721 			strcpy(macfb_fix.id, "V8");
742722 			macfb_setpalette = v8_brazil_setpalette;
743723 			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
744
-			macfb_defined.activate = FB_ACTIVATE_NOW;
745724 			break;
746725 
747726 		/*
....@@ -755,7 +734,6 @@
755734 			strcpy(macfb_fix.id, "Brazil");
756735 			macfb_setpalette = v8_brazil_setpalette;
757736 			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
758
-			macfb_defined.activate = FB_ACTIVATE_NOW;
759737 			break;
760738 
761739 		/*
....@@ -772,7 +750,6 @@
772750 			strcpy(macfb_fix.id, "Sonora");
773751 			macfb_setpalette = v8_brazil_setpalette;
774752 			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
775
-			macfb_defined.activate = FB_ACTIVATE_NOW;
776753 			break;
777754 
778755 		/*
....@@ -785,7 +762,6 @@
785762 			strcpy(macfb_fix.id, "RBV");
786763 			macfb_setpalette = rbv_setpalette;
787764 			rbv_cmap_regs = ioremap(DAC_BASE, 0x1000);
788
-			macfb_defined.activate = FB_ACTIVATE_NOW;
789765 			break;
790766 
791767 		/*
....@@ -796,7 +772,6 @@
796772 			strcpy(macfb_fix.id, "Civic");
797773 			macfb_setpalette = civic_setpalette;
798774 			civic_cmap_regs = ioremap(CIVIC_BASE, 0x1000);
799
-			macfb_defined.activate = FB_ACTIVATE_NOW;
800775 			break;
801776 
802777 		
....@@ -810,7 +785,6 @@
810785 				macfb_setpalette = v8_brazil_setpalette;
811786 				v8_brazil_cmap_regs =
812787 					ioremap(DAC_BASE, 0x1000);
813
-				macfb_defined.activate = FB_ACTIVATE_NOW;
814788 			}
815789 			break;
816790 
....@@ -823,7 +797,6 @@
823797 				macfb_setpalette = v8_brazil_setpalette;
824798 				v8_brazil_cmap_regs =
825799 					ioremap(DAC_BASE, 0x1000);
826
-				macfb_defined.activate = FB_ACTIVATE_NOW;
827800 			}
828801 			break;
829802 
....@@ -892,7 +865,6 @@
892865 			strcpy(macfb_fix.id, "CSC");
893866 			macfb_setpalette = csc_setpalette;
894867 			csc_cmap_regs = ioremap(CSC_BASE, 0x1000);
895
-			macfb_defined.activate = FB_ACTIVATE_NOW;
896868 			break;
897869 
898870 		default: