[SPARC]: Convert all FB SBUS drivers to of_driver framework.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 183 insertions, 154 deletions

diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c
index 7aab91ead68..64146be2eeb 100644
--- a/drivers/video/cg6.c
+++ b/drivers/video/cg6.c
@@ -1,6 +1,6 @@
 /* cg6.c: CGSIX (GX, GXplus, TGX) frame buffer driver
  *
- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
+ * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
  * Copyright (C) 1996,1998 Jakub Jelinek (jj@ultra.linux.cz)
  * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
  * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
@@ -19,8 +19,8 @@
 #include <linux/mm.h>
 
 #include <asm/io.h>
-#include <asm/sbus.h>
-#include <asm/oplib.h>
+#include <asm/prom.h>
+#include <asm/of_device.h>
 #include <asm/fbio.h>
 
 #include "sbuslib.h"
@@ -164,89 +164,89 @@ static struct fb_ops cg6_ops = {
 
 /* The contents are unknown */
 struct cg6_tec {
-        volatile int tec_matrix;
-        volatile int tec_clip;
-        volatile int tec_vdc;
+        int tec_matrix;
+        int tec_clip;
+        int tec_vdc;
 };
 
 struct cg6_thc {
-        uint thc_pad0[512];
-        volatile uint thc_hs;           /* hsync timing */
-        volatile uint thc_hsdvs;
-        volatile uint thc_hd;
-        volatile uint thc_vs;           /* vsync timing */
-        volatile uint thc_vd;
-        volatile uint thc_refresh;
-        volatile uint thc_misc;
-        uint thc_pad1[56];
-        volatile uint thc_cursxy;       /* cursor x,y position (16 bits each) */
-        volatile uint thc_cursmask[32]; /* cursor mask bits */
-        volatile uint thc_cursbits[32]; /* what to show where mask enabled */
+        u32 thc_pad0[512];
+        u32 thc_hs;             /* hsync timing */
+        u32 thc_hsdvs;
+        u32 thc_hd;
+        u32 thc_vs;             /* vsync timing */
+        u32 thc_vd;
+        u32 thc_refresh;
+        u32 thc_misc;
+        u32 thc_pad1[56];
+        u32 thc_cursxy; /* cursor x,y position (16 bits each) */
+        u32 thc_cursmask[32];   /* cursor mask bits */
+        u32 thc_cursbits[32];   /* what to show where mask enabled */
 };
 
 struct cg6_fbc {
-        u32             xxx0[1];
-        volatile u32    mode;
-        volatile u32    clip;
-        u32             xxx1[1];            
-        volatile u32    s;
-        volatile u32    draw;
-        volatile u32    blit;
-        volatile u32    font;
-        u32             xxx2[24];
-        volatile u32    x0, y0, z0, color0;
-        volatile u32    x1, y1, z1, color1;
-        volatile u32    x2, y2, z2, color2;
-        volatile u32    x3, y3, z3, color3;
-        volatile u32    offx, offy;
-        u32             xxx3[2];
-        volatile u32    incx, incy;
-        u32             xxx4[2];
-        volatile u32    clipminx, clipminy;
-        u32             xxx5[2];
-        volatile u32    clipmaxx, clipmaxy;
-        u32             xxx6[2];
-        volatile u32    fg;
-        volatile u32    bg;
-        volatile u32    alu;
-        volatile u32    pm;
-        volatile u32    pixelm;
-        u32             xxx7[2];
-        volatile u32    patalign;
-        volatile u32    pattern[8];
-        u32             xxx8[432];
-        volatile u32    apointx, apointy, apointz;
-        u32             xxx9[1];
-        volatile u32    rpointx, rpointy, rpointz;
-        u32             xxx10[5];
-        volatile u32    pointr, pointg, pointb, pointa;
-        volatile u32    alinex, aliney, alinez;
-        u32             xxx11[1];
-        volatile u32    rlinex, rliney, rlinez;
-        u32             xxx12[5];
-        volatile u32    liner, lineg, lineb, linea;
-        volatile u32    atrix, atriy, atriz;
-        u32             xxx13[1];
-        volatile u32    rtrix, rtriy, rtriz;
-        u32             xxx14[5];
-        volatile u32    trir, trig, trib, tria;
-        volatile u32    aquadx, aquady, aquadz;
-        u32             xxx15[1];
-        volatile u32    rquadx, rquady, rquadz;
-        u32             xxx16[5];
-        volatile u32    quadr, quadg, quadb, quada;
-        volatile u32    arectx, arecty, arectz;
-        u32             xxx17[1];
-        volatile u32    rrectx, rrecty, rrectz;
-        u32             xxx18[5];
-        volatile u32    rectr, rectg, rectb, recta;
+        u32     xxx0[1];
+        u32     mode;
+        u32     clip;
+        u32     xxx1[1];            
+        u32     s;
+        u32     draw;
+        u32     blit;
+        u32     font;
+        u32     xxx2[24];
+        u32     x0, y0, z0, color0;
+        u32     x1, y1, z1, color1;
+        u32     x2, y2, z2, color2;
+        u32     x3, y3, z3, color3;
+        u32     offx, offy;
+        u32     xxx3[2];
+        u32     incx, incy;
+        u32     xxx4[2];
+        u32     clipminx, clipminy;
+        u32     xxx5[2];
+        u32     clipmaxx, clipmaxy;
+        u32     xxx6[2];
+        u32     fg;
+        u32     bg;
+        u32     alu;
+        u32     pm;
+        u32     pixelm;
+        u32     xxx7[2];
+        u32     patalign;
+        u32     pattern[8];
+        u32     xxx8[432];
+        u32     apointx, apointy, apointz;
+        u32     xxx9[1];
+        u32     rpointx, rpointy, rpointz;
+        u32     xxx10[5];
+        u32     pointr, pointg, pointb, pointa;
+        u32     alinex, aliney, alinez;
+        u32     xxx11[1];
+        u32     rlinex, rliney, rlinez;
+        u32     xxx12[5];
+        u32     liner, lineg, lineb, linea;
+        u32     atrix, atriy, atriz;
+        u32     xxx13[1];
+        u32     rtrix, rtriy, rtriz;
+        u32     xxx14[5];
+        u32     trir, trig, trib, tria;
+        u32     aquadx, aquady, aquadz;
+        u32     xxx15[1];
+        u32     rquadx, rquady, rquadz;
+        u32     xxx16[5];
+        u32     quadr, quadg, quadb, quada;
+        u32     arectx, arecty, arectz;
+        u32     xxx17[1];
+        u32     rrectx, rrecty, rrectz;
+        u32     xxx18[5];
+        u32     rectr, rectg, rectb, recta;
 };
 
 struct bt_regs {
-        volatile u32 addr;
-        volatile u32 color_map;
-        volatile u32 control;
-        volatile u32 cursor;
+        u32 addr;
+        u32 color_map;
+        u32 control;
+        u32 cursor;
 };
 
 struct cg6_par {
@@ -255,15 +255,14 @@ struct cg6_par {
         struct cg6_fbc          __iomem *fbc;
         struct cg6_thc          __iomem *thc;
         struct cg6_tec          __iomem *tec;
-        volatile u32            __iomem *fhc;
+        u32                     __iomem *fhc;
 
         u32                     flags;
 #define CG6_FLAG_BLANKED        0x00000001
 
         unsigned long           physbase;
+        unsigned long           which_io;
         unsigned long           fbsize;
-
-        struct sbus_dev         *sdev;
 };
 
 static int cg6_sync(struct fb_info *info)
@@ -529,8 +528,7 @@ static int cg6_mmap(struct fb_info *info, struct vm_area_struct *vma)
 
         return sbusfb_mmap_helper(cg6_mmap_map,
                                   par->physbase, par->fbsize,
-                                  par->sdev->reg_addrs[0].which_io,
-                                  vma);
+                                  par->which_io, vma);
 }
 
 static int cg6_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
@@ -658,62 +656,75 @@ static void cg6_chip_init(struct fb_info *info)
 struct all_info {
         struct fb_info info;
         struct cg6_par par;
-        struct list_head list;
 };
-static LIST_HEAD(cg6_list);
 
-static void cg6_init_one(struct sbus_dev *sdev)
+static void cg6_unmap_regs(struct all_info *all)
 {
-        struct all_info *all;
-        int linebytes;
+        if (all->par.fbc)
+                of_iounmap(all->par.fbc, 4096);
+        if (all->par.tec)
+                of_iounmap(all->par.tec, sizeof(struct cg6_tec));
+        if (all->par.thc)
+                of_iounmap(all->par.thc, sizeof(struct cg6_thc));
+        if (all->par.bt)
+                of_iounmap(all->par.bt, sizeof(struct bt_regs));
+        if (all->par.fhc)
+                of_iounmap(all->par.fhc, sizeof(u32));
+
+        if (all->info.screen_base)
+                of_iounmap(all->info.screen_base, all->par.fbsize);
+}
 
-        all = kmalloc(sizeof(*all), GFP_KERNEL);
-        if (!all) {
-                printk(KERN_ERR "cg6: Cannot allocate memory.\n");
-                return;
-        }
-        memset(all, 0, sizeof(*all));
+static int __devinit cg6_init_one(struct of_device *op)
+{
+        struct device_node *dp = op->node;
+        struct all_info *all;
+        int linebytes, err;
 
-        INIT_LIST_HEAD(&all->list);
+        all = kzalloc(sizeof(*all), GFP_KERNEL);
+        if (!all)
+                return -ENOMEM;
 
         spin_lock_init(&all->par.lock);
-        all->par.sdev = sdev;
 
-        all->par.physbase = sdev->reg_addrs[0].phys_addr;
+        all->par.physbase = op->resource[0].start;
+        all->par.which_io = op->resource[0].flags & IORESOURCE_BITS;
 
-        sbusfb_fill_var(&all->info.var, sdev->prom_node, 8);
+        sbusfb_fill_var(&all->info.var, dp->node, 8);
         all->info.var.red.length = 8;
         all->info.var.green.length = 8;
         all->info.var.blue.length = 8;
 
-        linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
-                                       all->info.var.xres);
+        linebytes = of_getintprop_default(dp, "linebytes",
+                                          all->info.var.xres);
         all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
-        if (prom_getbool(sdev->prom_node, "dblbuf"))
+        if (of_find_property(dp, "dblbuf", NULL))
                 all->par.fbsize *= 4;
 
-        all->par.fbc = sbus_ioremap(&sdev->resource[0], CG6_FBC_OFFSET,
-                             4096, "cgsix fbc");
-        all->par.tec = sbus_ioremap(&sdev->resource[0], CG6_TEC_OFFSET,
-                             sizeof(struct cg6_tec), "cgsix tec");
-        all->par.thc = sbus_ioremap(&sdev->resource[0], CG6_THC_OFFSET,
-                             sizeof(struct cg6_thc), "cgsix thc");
-        all->par.bt = sbus_ioremap(&sdev->resource[0], CG6_BROOKTREE_OFFSET,
-                             sizeof(struct bt_regs), "cgsix dac");
-        all->par.fhc = sbus_ioremap(&sdev->resource[0], CG6_FHC_OFFSET,
-                             sizeof(u32), "cgsix fhc");
+        all->par.fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET,
+                                  4096, "cgsix fbc");
+        all->par.tec = of_ioremap(&op->resource[0], CG6_TEC_OFFSET,
+                                  sizeof(struct cg6_tec), "cgsix tec");
+        all->par.thc = of_ioremap(&op->resource[0], CG6_THC_OFFSET,
+                                  sizeof(struct cg6_thc), "cgsix thc");
+        all->par.bt = of_ioremap(&op->resource[0], CG6_BROOKTREE_OFFSET,
+                                 sizeof(struct bt_regs), "cgsix dac");
+        all->par.fhc = of_ioremap(&op->resource[0], CG6_FHC_OFFSET,
+                                  sizeof(u32), "cgsix fhc");
 
         all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_IMAGEBLIT |
                           FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
         all->info.fbops = &cg6_ops;
-#ifdef CONFIG_SPARC32
-        all->info.screen_base = (char __iomem *)
-                prom_getintdefault(sdev->prom_node, "address", 0);
-#endif
-        if (!all->info.screen_base)
-                all->info.screen_base = 
-                        sbus_ioremap(&sdev->resource[0], CG6_RAM_OFFSET,
-                                     all->par.fbsize, "cgsix ram");
+
+        all->info.screen_base =  of_ioremap(&op->resource[0], CG6_RAM_OFFSET,
+                                            all->par.fbsize, "cgsix ram");
+        if (!all->par.fbc || !all->par.tec || !all->par.thc ||
+            !all->par.bt || !all->par.fhc || !all->info.screen_base) {
+                cg6_unmap_regs(all);
+                kfree(all);
+                return -ENOMEM;
+        }
+
         all->info.par = &all->par;
 
         all->info.var.accel_flags = FB_ACCELF_TEXT;
@@ -723,72 +734,90 @@ static void cg6_init_one(struct sbus_dev *sdev)
         cg6_blank(0, &all->info);
 
         if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
-                printk(KERN_ERR "cg6: Could not allocate color map.\n");
+                cg6_unmap_regs(all);
                 kfree(all);
-                return;
+                return -ENOMEM;
         }
 
         fb_set_cmap(&all->info.cmap, &all->info);
         cg6_init_fix(&all->info, linebytes);
 
-        if (register_framebuffer(&all->info) < 0) {
-                printk(KERN_ERR "cg6: Could not register framebuffer.\n");
+        err = register_framebuffer(&all->info);
+        if (err < 0) {
+                cg6_unmap_regs(all);
                 fb_dealloc_cmap(&all->info.cmap);
                 kfree(all);
-                return;
+                return err;
         }
 
-        list_add(&all->list, &cg6_list);
+        dev_set_drvdata(&op->dev, all);
 
-        printk("cg6: CGsix [%s] at %lx:%lx\n",
+        printk("%s: CGsix [%s] at %lx:%lx\n",
+               dp->full_name,
                all->info.fix.id,
-               (long) sdev->reg_addrs[0].which_io,
-               (long) sdev->reg_addrs[0].phys_addr);
+               all->par.which_io, all->par.physbase);
+
+        return 0;
 }
 
-int __init cg6_init(void)
+static int __devinit cg6_probe(struct of_device *dev, const struct of_device_id *match)
 {
-        struct sbus_bus *sbus;
-        struct sbus_dev *sdev;
+        struct of_device *op = to_of_device(&dev->dev);
 
-        if (fb_get_options("cg6fb", NULL))
-                return -ENODEV;
+        return cg6_init_one(op);
+}
 
-        for_all_sbusdev(sdev, sbus) {
-                if (!strcmp(sdev->prom_name, "cgsix") ||
-                    !strcmp(sdev->prom_name, "cgthree+"))
-                        cg6_init_one(sdev);
-        }
+static int __devexit cg6_remove(struct of_device *dev)
+{
+        struct all_info *all = dev_get_drvdata(&dev->dev);
+
+        unregister_framebuffer(&all->info);
+        fb_dealloc_cmap(&all->info.cmap);
+
+        cg6_unmap_regs(all);
+
+        kfree(all);
+
+        dev_set_drvdata(&dev->dev, NULL);
 
         return 0;
 }
 
-void __exit cg6_exit(void)
-{
-        struct list_head *pos, *tmp;
+static struct of_device_id cg6_match[] = {
+        {
+                .name = "cgsix",
+        },
+        {
+                .name = "cgthree+",
+        },
+        {},
+};
+MODULE_DEVICE_TABLE(of, cg6_match);
 
-        list_for_each_safe(pos, tmp, &cg6_list) {
-                struct all_info *all = list_entry(pos, typeof(*all), list);
+static struct of_platform_driver cg6_driver = {
+        .name           = "cg6",
+        .match_table    = cg6_match,
+        .probe          = cg6_probe,
+        .remove         = __devexit_p(cg6_remove),
+};
 
-                unregister_framebuffer(&all->info);
-                fb_dealloc_cmap(&all->info.cmap);
-                kfree(all);
-        }
+static int __init cg6_init(void)
+{
+        if (fb_get_options("cg6fb", NULL))
+                return -ENODEV;
+
+        return of_register_driver(&cg6_driver, &of_bus_type);
 }
 
-int __init
-cg6_setup(char *arg)
+static void __exit cg6_exit(void)
 {
-        /* No cmdline options yet... */
-        return 0;
+        of_unregister_driver(&cg6_driver);
 }
 
 module_init(cg6_init);
-
-#ifdef MODULE
 module_exit(cg6_exit);
-#endif
 
 MODULE_DESCRIPTION("framebuffer driver for CGsix chipsets");
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
+MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
+MODULE_VERSION("2.0");
 MODULE_LICENSE("GPL");