add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/video/fbdev/pm3fb.c
..
..
@@ -44,7 +44,7 @@
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 #define DPRINTK(a, b...)	\
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 	printk(KERN_DEBUG "pm3fb: %s: " a, __func__ , ## b)
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 #else
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-#define DPRINTK(a, b...)
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+#define DPRINTK(a, b...)	no_printk(a, ##b)
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 #endif
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 #define PM3_PIXMAP_SIZE	(2048 * 4)
..
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@@ -306,7 +306,7 @@
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 					   PM3PixelSize_GLOBAL_32BIT);
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 			break;
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 		default:
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-			DPRINTK(1, "Unsupported depth %d\n",
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+			DPRINTK("Unsupported depth %d\n",
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 				info->var.bits_per_pixel);
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 			break;
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 		}
..
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@@ -349,8 +349,8 @@
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 					   (1 << 10) | (0 << 3));
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 			break;
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 		default:
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-			DPRINTK(1, "Unsupported depth %d\n",
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-				info->current_par->depth);
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+			DPRINTK("Unsupported depth %d\n",
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+				info->var.bits_per_pixel);
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 			break;
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 		}
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 	}
..
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@@ -821,9 +821,9 @@
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 	wmb();
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 	{
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-		unsigned char uninitialized_var(m);	/* ClkPreScale */
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-		unsigned char uninitialized_var(n);	/* ClkFeedBackScale */
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-		unsigned char uninitialized_var(p);	/* ClkPostScale */
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+		unsigned char m;	/* ClkPreScale */
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+		unsigned char n;	/* ClkFeedBackScale */
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+		unsigned char p;	/* ClkPostScale */
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 		unsigned long pixclock = PICOS2KHZ(info->var.pixclock);
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 		(void)pm3fb_calculate_clock(pixclock, &m, &n, &p);
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@@ -1200,7 +1200,7 @@
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 	 *  Frame buffer operations
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 	 */
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-static struct fb_ops pm3fb_ops = {
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+static const struct fb_ops pm3fb_ops = {
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 	.owner		= THIS_MODULE,
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 	.fb_check_var	= pm3fb_check_var,
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 	.fb_set_par	= pm3fb_set_par,
..
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@@ -1236,7 +1236,7 @@
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 		return 0;
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 	}
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 	screen_mem =
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-		ioremap_nocache(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
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+		ioremap(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
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 	if (!screen_mem) {
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 		printk(KERN_WARNING "pm3fb: Can't ioremap smem area.\n");
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 		release_mem_region(pm3fb_fix.smem_start, pm3fb_fix.smem_len);
..
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@@ -1347,7 +1347,7 @@
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 		goto err_exit_neither;
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 	}
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 	par->v_regs =
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-		ioremap_nocache(pm3fb_fix.mmio_start, pm3fb_fix.mmio_len);
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+		ioremap(pm3fb_fix.mmio_start, pm3fb_fix.mmio_len);
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 	if (!par->v_regs) {
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 		printk(KERN_WARNING "pm3fb: Can't remap %s register area.\n",
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 			pm3fb_fix.id);