fb: fix au1100fb bitrot.
[sitara-epos/sitara-epos-kernel.git] / drivers / video / au1100fb.c
index 01a8fde67f20ab906b55ef2739159c430f905e55..649cb35de4ed401d2ffce0e1c5abcaeb71f4037a 100644 (file)
@@ -110,12 +110,6 @@ static struct fb_var_screeninfo au1100fb_var __devinitdata = {
        .vmode          = FB_VMODE_NONINTERLACED,
 };
 
-static struct au1100fb_drv_info drv_info;
-
-static int nocursor = 0;
-module_param(nocursor, int, 0644);
-MODULE_PARM_DESC(nocursor, "cursor enable/disable");
-
 /* fb_blank
  * Blank the screen. Depending on the mode, the screen will be
  * activated with the backlight color, or desactivated
@@ -132,7 +126,7 @@ static int au1100fb_fb_blank(int blank_mode, struct fb_info *fbi)
                        /* Turn on panel */
                        fbdev->regs->lcd_control |= LCD_CONTROL_GO;
 #ifdef CONFIG_MIPS_PB1100
-                       if (drv_info.panel_idx == 1) {
+                       if (fbdev->panel_idx == 1) {
                                au_writew(au_readw(PB1100_G_CONTROL)
                                          | (PB1100_G_CONTROL_BL | PB1100_G_CONTROL_VDD),
                        PB1100_G_CONTROL);
@@ -147,7 +141,7 @@ static int au1100fb_fb_blank(int blank_mode, struct fb_info *fbi)
                        /* Turn off panel */
                        fbdev->regs->lcd_control &= ~LCD_CONTROL_GO;
 #ifdef CONFIG_MIPS_PB1100
-                       if (drv_info.panel_idx == 1) {
+                       if (fbdev->panel_idx == 1) {
                                au_writew(au_readw(PB1100_G_CONTROL)
                                          & ~(PB1100_G_CONTROL_BL | PB1100_G_CONTROL_VDD),
                        PB1100_G_CONTROL);
@@ -428,17 +422,6 @@ int au1100fb_fb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
        return 0;
 }
 
-/* fb_cursor
- * Used to disable cursor drawing...
- */
-int au1100fb_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
-{
-       if (nocursor)
-               return 0;
-       else
-               return -EINVAL; /* just to force soft_cursor() call */
-}
-
 static struct fb_ops au1100fb_ops =
 {
        .owner                  = THIS_MODULE,
@@ -450,13 +433,53 @@ static struct fb_ops au1100fb_ops =
        .fb_imageblit           = cfb_imageblit,
        .fb_rotate              = au1100fb_fb_rotate,
        .fb_mmap                = au1100fb_fb_mmap,
-       .fb_cursor              = au1100fb_fb_cursor,
 };
 
 
 /*-------------------------------------------------------------------------*/
 
-/* AU1100 LCD controller device driver */
+static int au1100fb_setup(struct au1100fb_device *fbdev)
+{
+       char *this_opt, *options;
+       int num_panels = ARRAY_SIZE(known_lcd_panels);
+
+       if (num_panels <= 0) {
+               print_err("No LCD panels supported by driver!");
+               return -ENODEV;
+       }
+
+       if (fb_get_options(DRIVER_NAME, &options))
+               return -ENODEV;
+       if (!options)
+               return -ENODEV;
+
+       while ((this_opt = strsep(&options, ",")) != NULL) {
+               /* Panel option */
+               if (!strncmp(this_opt, "panel:", 6)) {
+                       int i;
+                       this_opt += 6;
+                       for (i = 0; i < num_panels; i++) {
+                               if (!strncmp(this_opt, known_lcd_panels[i].name,
+                                            strlen(this_opt))) {
+                                       fbdev->panel = &known_lcd_panels[i];
+                                       fbdev->panel_idx = i;
+                                       break;
+                               }
+                       }
+                       if (i >= num_panels) {
+                               print_warn("Panel '%s' not supported!", this_opt);
+                               return -ENODEV;
+                       }
+               }
+               /* Unsupported option */
+               else
+                       print_warn("Unsupported option \"%s\"", this_opt);
+       }
+
+       print_info("Panel=%s", fbdev->panel->name);
+
+       return 0;
+}
 
 static int __devinit au1100fb_drv_probe(struct platform_device *dev)
 {
@@ -465,22 +488,21 @@ static int __devinit au1100fb_drv_probe(struct platform_device *dev)
        unsigned long page;
        u32 sys_clksrc;
 
-       if (!dev)
-                       return -EINVAL;
-
        /* Allocate new device private */
-       if (!(fbdev = kzalloc(sizeof(struct au1100fb_device), GFP_KERNEL))) {
+       fbdev = kzalloc(sizeof(struct au1100fb_device), GFP_KERNEL);
+       if (!fbdev) {
                print_err("fail to allocate device private record");
                return -ENOMEM;
        }
 
-       fbdev->panel = &known_lcd_panels[drv_info.panel_idx];
+       if (au1100fb_setup(fbdev))
+               goto failed;
 
        platform_set_drvdata(dev, (void *)fbdev);
 
        /* Allocate region for our registers and map them */
-       if (!(regs_res = platform_get_resource(to_platform_device(dev),
-                                       IORESOURCE_MEM, 0))) {
+       regs_res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+       if (!regs_res) {
                print_err("fail to retrieve registers resource");
                return -EFAULT;
        }
@@ -500,13 +522,11 @@ static int __devinit au1100fb_drv_probe(struct platform_device *dev)
        print_dbg("Register memory map at %p", fbdev->regs);
        print_dbg("phys=0x%08x, size=%d", fbdev->regs_phys, fbdev->regs_len);
 
-
-
        /* Allocate the framebuffer to the maximum screen size * nbr of video buffers */
        fbdev->fb_len = fbdev->panel->xres * fbdev->panel->yres *
                        (fbdev->panel->bpp >> 3) * AU1100FB_NBR_VIDEO_BUFFERS;
 
-       fbdev->fb_mem = dma_alloc_coherent(dev, PAGE_ALIGN(fbdev->fb_len),
+       fbdev->fb_mem = dma_alloc_coherent(&dev->dev, PAGE_ALIGN(fbdev->fb_len),
                                        &fbdev->fb_phys, GFP_KERNEL);
        if (!fbdev->fb_mem) {
                print_err("fail to allocate frambuffer (size: %dK))",
@@ -525,7 +545,7 @@ static int __devinit au1100fb_drv_probe(struct platform_device *dev)
             page < PAGE_ALIGN((unsigned long)fbdev->fb_mem + fbdev->fb_len);
             page += PAGE_SIZE) {
 #if CONFIG_DMA_NONCOHERENT
-               SetPageReserved(virt_to_page(CAC_ADDR(page)));
+               SetPageReserved(virt_to_page(CAC_ADDR((void *)page)));
 #else
                SetPageReserved(virt_to_page(page));
 #endif
@@ -578,7 +598,8 @@ failed:
                release_mem_region(fbdev->regs_phys, fbdev->regs_len);
        }
        if (fbdev->fb_mem) {
-               dma_free_noncoherent(dev, fbdev->fb_len, fbdev->fb_mem, fbdev->fb_phys);
+               dma_free_noncoherent(&dev->dev, fbdev->fb_len, fbdev->fb_mem,
+                                    fbdev->fb_phys);
        }
        if (fbdev->info.cmap.len != 0) {
                fb_dealloc_cmap(&fbdev->info.cmap);
@@ -608,7 +629,8 @@ int au1100fb_drv_remove(struct platform_device *dev)
 
        release_mem_region(fbdev->regs_phys, fbdev->regs_len);
 
-       dma_free_coherent(dev, PAGE_ALIGN(fbdev->fb_len), fbdev->fb_mem, fbdev->fb_phys);
+       dma_free_coherent(&dev->dev, PAGE_ALIGN(fbdev->fb_len), fbdev->fb_mem,
+                         fbdev->fb_phys);
 
        fb_dealloc_cmap(&fbdev->info.cmap);
        kfree(fbdev->info.pseudo_palette);
@@ -675,101 +697,18 @@ static struct platform_driver au1100fb_driver = {
         .resume                = au1100fb_drv_resume,
 };
 
-/*-------------------------------------------------------------------------*/
-
-/* Kernel driver */
-
-int au1100fb_setup(char *options)
-{
-       char* this_opt;
-       int num_panels = ARRAY_SIZE(known_lcd_panels);
-       char* mode = NULL;
-       int panel_idx = 0;
-
-       if (num_panels <= 0) {
-               print_err("No LCD panels supported by driver!");
-               return -EFAULT;
-                       }
-
-       if (options) {
-               while ((this_opt = strsep(&options,",")) != NULL) {
-                       /* Panel option */
-                       if (!strncmp(this_opt, "panel:", 6)) {
-                               int i;
-                               this_opt += 6;
-                               for (i = 0; i < num_panels; i++) {
-                                       if (!strncmp(this_opt,
-                                                    known_lcd_panels[i].name,
-                                                       strlen(this_opt))) {
-                                               panel_idx = i;
-                                               break;
-                                       }
-                               }
-                               if (i >= num_panels) {
-                                       print_warn("Panel %s not supported!", this_opt);
-                               }
-                       }
-                       if (!strncmp(this_opt, "nocursor", 8)) {
-                               this_opt += 8;
-                               nocursor = 1;
-                               print_info("Cursor disabled");
-                       }
-                       /* Mode option (only option that start with digit) */
-                       else if (isdigit(this_opt[0])) {
-                               mode = kstrdup(this_opt, GFP_KERNEL);
-                               if (!mode) {
-                                       print_err("memory allocation failed");
-                                       return -ENOMEM;
-                               }
-                       }
-                       /* Unsupported option */
-                       else {
-                               print_warn("Unsupported option \"%s\"", this_opt);
-                       }
-               }
-       }
-
-       drv_info.panel_idx = panel_idx;
-       drv_info.opt_mode = mode;
-
-       print_info("Panel=%s Mode=%s",
-                       known_lcd_panels[drv_info.panel_idx].name,
-                       drv_info.opt_mode ? drv_info.opt_mode : "default");
-
-       return 0;
-}
-
-int __init au1100fb_init(void)
+static int __init au1100fb_load(void)
 {
-       char* options;
-       int ret;
-
-       print_info("" DRIVER_DESC "");
-
-       memset(&drv_info, 0, sizeof(drv_info));
-
-       if (fb_get_options(DRIVER_NAME, &options))
-               return -ENODEV;
-
-       /* Setup driver with options */
-       ret = au1100fb_setup(options);
-       if (ret < 0) {
-               print_err("Fail to setup driver");
-               return ret;
-       }
-
        return platform_driver_register(&au1100fb_driver);
 }
 
-void __exit au1100fb_cleanup(void)
+static void __exit au1100fb_unload(void)
 {
        platform_driver_unregister(&au1100fb_driver);
-
-       kfree(drv_info.opt_mode);
 }
 
-module_init(au1100fb_init);
-module_exit(au1100fb_cleanup);
+module_init(au1100fb_load);
+module_exit(au1100fb_unload);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");