/* sunxvr1000.c: Sun XVR-1000 fb driver for sparc64 systems * * License: GPL * * Copyright (C) 2010 David S. Miller (davem@davemloft.net) */ #include #include #include #include struct gfb_info { struct fb_info *info; char __iomem *fb_base; unsigned long fb_base_phys; struct device_node *of_node; unsigned int width; unsigned int height; unsigned int depth; unsigned int fb_size; u32 pseudo_palette[16]; }; static int gfb_get_props(struct gfb_info *gp) { gp->width = of_getintprop_default(gp->of_node, "width", 0); gp->height = of_getintprop_default(gp->of_node, "height", 0); gp->depth = of_getintprop_default(gp->of_node, "depth", 32); if (!gp->width || !gp->height) { printk(KERN_ERR "gfb: Critical properties missing for %s\n", gp->of_node->full_name); return -EINVAL; } return 0; } static int gfb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *info) { u32 value; if (regno < 16) { red >>= 8; green >>= 8; blue >>= 8; value = (blue << 16) | (green << 8) | red; ((u32 *)info->pseudo_palette)[regno] = value; } return 0; } static struct fb_ops gfb_ops = { .owner = THIS_MODULE, .fb_setcolreg = gfb_setcolreg, .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, }; static int gfb_set_fbinfo(struct gfb_info *gp) { struct fb_info *info = gp->info; struct fb_var_screeninfo *var = &info->var; info->flags = FBINFO_DEFAULT; info->fbops = &gfb_ops; info->screen_base = gp->fb_base; info->screen_size = gp->fb_size; info->pseudo_palette = gp->pseudo_palette; /* Fill fix common fields */ strlcpy(info->fix.id, "gfb", sizeof(info->fix.id)); info->fix.smem_start = gp->fb_base_phys; info->fix.smem_len = gp->fb_size; info->fix.type = FB_TYPE_PACKED_PIXELS; if (gp->depth == 32 || gp->depth == 24) info->fix.visual = FB_VISUAL_TRUECOLOR; else info->fix.visual = FB_VISUAL_PSEUDOCOLOR; var->xres = gp->width; var->yres = gp->height; var->xres_virtual = var->xres; var->yres_virtual = var->yres; var->bits_per_pixel = gp->depth; var->red.offset = 0; var->red.length = 8; var->green.offset = 8; var->green.length = 8; var->blue.offset = 16; var->blue.length = 8; var->transp.offset = 0; var->transp.length = 0; if (fb_alloc_cmap(&info->cmap, 256, 0)) { printk(KERN_ERR "gfb: Cannot allocate color map.\n"); return -ENOMEM; } return 0; } static int gfb_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; struct fb_info *info; struct gfb_info *gp; int err; info = framebuffer_alloc(sizeof(struct gfb_info), &op->dev); if (!info) { printk(KERN_ERR "gfb: Cannot allocate fb_info\n"); err = -ENOMEM; goto err_out; } gp = info->par; gp->info = info; gp->of_node = dp; gp->fb_base_phys = op->resource[6].start; err = gfb_get_props(gp); if (err) goto err_release_fb; /* Framebuffer length is the same regardless of resolution. */ info->fix.line_length = 16384; gp->fb_size = info->fix.line_length * gp->height; gp->fb_base = of_ioremap(&op->resource[6], 0, gp->fb_size, "gfb fb"); if (!gp->fb_base) { err = -ENOMEM; goto err_release_fb; } err = gfb_set_fbinfo(gp); if (err) goto err_unmap_fb; printk("gfb: Found device at %s\n", dp->full_name); err = register_framebuffer(info); if (err < 0) { printk(KERN_ERR "gfb: Could not register framebuffer %s\n", dp->full_name); goto err_unmap_fb; } dev_set_drvdata(&op->dev, info); return 0; err_unmap_fb: of_iounmap(&op->resource[6], gp->fb_base, gp->fb_size); err_release_fb: framebuffer_release(info); err_out: return err; } static const struct of_device_id gfb_match[] = { { .name = "SUNW,gfb", }, {}, }; static struct platform_driver gfb_driver = { .probe = gfb_probe, .driver = { .name = "gfb", .of_match_table = gfb_match, .suppress_bind_attrs = true, }, }; static int __init gfb_init(void) { if (fb_get_options("gfb", NULL)) return -ENODEV; return platform_driver_register(&gfb_driver); } device_initcall(gfb_init); tion value='25'>25space:mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800
commit4759d386d55fef452d692bf101167914437e848e (patch)
treee7109c192ec589fcea2a98f9702aa3c0e4009581 /include/dt-bindings/clock/microchip,pic32-clock.h
parent238d1d0f79f619d75c2cc741d6770fb0986aef24 (diff)
parent1db175428ee374489448361213e9c3b749d14900 (diff)
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX updates from Dan Williams: "The completion of Jan's DAX work for 4.10. As I mentioned in the libnvdimm-for-4.10 pull request, these are some final fixes for the DAX dirty-cacheline-tracking invalidation work that was merged through the -mm, ext4, and xfs trees in -rc1. These patches were prepared prior to the merge window, but we waited for 4.10-rc1 to have a stable merge base after all the prerequisites were merged. Quoting Jan on the overall changes in these patches: "So I'd like all these 6 patches to go for rc2. The first three patches fix invalidation of exceptional DAX entries (a bug which is there for a long time) - without these patches data loss can occur on power failure even though user called fsync(2). The other three patches change locking of DAX faults so that ->iomap_begin() is called in a more relaxed locking context and we are safe to start a transaction there for ext4" These have received a build success notification from the kbuild robot, and pass the latest libnvdimm unit tests. There have not been any -next releases since -rc1, so they have not appeared there" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: ext4: Simplify DAX fault path dax: Call ->iomap_begin without entry lock during dax fault dax: Finish fault completely when loading holes dax: Avoid page invalidation races and unnecessary radix tree traversals mm: Invalidate DAX radix tree entries only if appropriate ext2: Return BH_New buffers for zeroed blocks
Diffstat (limited to 'include/dt-bindings/clock/microchip,pic32-clock.h')