[PATCH] fbdev: sstfb: Driver cleanups

- remove unneeded casts
- make setcolreg return success if regno > 15, but don't do anything
- use framebuffer_alloc/framebuffer_release to allocate/free memory

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 27 insertions, 33 deletions

diff --git a/drivers/video/sstfb.c b/drivers/video/sstfb.c
index e0f14df840d9..8a5ce210bb27 100644
--- a/drivers/video/sstfb.c
+++ b/drivers/video/sstfb.c
@@ -382,7 +382,7 @@ static void sstfb_clear_screen(struct fb_info *info)
 static int sstfb_check_var(struct fb_var_screeninfo *var,
                 struct fb_info *info)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         int hSyncOff   = var->xres + var->right_margin + var->left_margin;
         int vSyncOff   = var->yres + var->lower_margin + var->upper_margin;
         int vBackPorch = var->left_margin, yDim = var->yres;
@@ -542,7 +542,7 @@ static int sstfb_check_var(struct fb_var_screeninfo *var,
  */
 static int sstfb_set_par(struct fb_info *info)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         u32 lfbmode, fbiinit1, fbiinit2, fbiinit3, fbiinit5, fbiinit6=0;
         struct pci_dev *sst_dev = par->dev;
         unsigned int freq;
@@ -748,13 +748,14 @@ static int sstfb_set_par(struct fb_info *info)
 static int sstfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
                            u_int transp, struct fb_info *info)
 {
+        struct sstfb_par *par = info->par;
         u32 col;
 
         f_dddprintk("sstfb_setcolreg\n");
         f_dddprintk("%-2d rgbt: %#x, %#x, %#x, %#x\n",
                     regno, red, green, blue, transp);
-        if (regno >= 16)
-                return -EINVAL;
+        if (regno > 15)
+                return 0;
 
         red    >>= (16 - info->var.red.length);
         green  >>= (16 - info->var.green.length);
@@ -765,7 +766,7 @@ static int sstfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
             | (blue  << info->var.blue.offset)
             | (transp << info->var.transp.offset);
         
-        ((u32 *)info->pseudo_palette)[regno] = col;
+        par->palette[regno] = col;
 
         return 0;
 }
@@ -773,7 +774,7 @@ static int sstfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 static int sstfb_ioctl(struct inode *inode, struct file *file,
                        u_int cmd, u_long arg, struct fb_info *info )
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         struct pci_dev *sst_dev = par->dev;
         u32 fbiinit0, tmp, val;
         u_long p;
@@ -830,7 +831,7 @@ static int sstfb_ioctl(struct inode *inode, struct file *file,
 #if 0
 static void sstfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         u32 stride = info->fix.line_length;
    
         if (!IS_VOODOO2(par))
@@ -855,7 +856,7 @@ static void sstfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
  */
 static void sstfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) 
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         u32 stride = info->fix.line_length;
 
         if (!IS_VOODOO2(par))
@@ -925,7 +926,7 @@ static int __devinit sst_get_memsize(struct fb_info *info, __u32 *memsize)
 
 static int __devinit sst_detect_att(struct fb_info *info)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         int i, mir, dir;
 
         for (i=0; i<3; i++) {
@@ -950,7 +951,7 @@ static int __devinit sst_detect_att(struct fb_info *info)
 
 static int __devinit sst_detect_ti(struct fb_info *info)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         int i, mir, dir;
 
         for (i = 0; i<3; i++) {
@@ -986,7 +987,7 @@ static int __devinit sst_detect_ti(struct fb_info *info)
  */
 static int __devinit sst_detect_ics(struct fb_info *info)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         int m_clk0_1, m_clk0_7, m_clk1_b;
         int n_clk0_1, n_clk0_7, n_clk1_b;
         int i;
@@ -1023,7 +1024,7 @@ static int __devinit sst_detect_ics(struct fb_info *info)
 static int sst_set_pll_att_ti(struct fb_info *info, 
                 const struct pll_timing *t, const int clock)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         u8 cr0, cc;
 
         /* enable indexed mode */
@@ -1077,7 +1078,7 @@ static int sst_set_pll_att_ti(struct fb_info *info,
 static int sst_set_pll_ics(struct fb_info *info,
                 const struct pll_timing *t, const int clock)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         u8 pll_ctrl;
 
         sst_dac_write(DACREG_ICS_PLLRMA, DACREG_ICS_PLL_CTRL);
@@ -1114,7 +1115,7 @@ static int sst_set_pll_ics(struct fb_info *info,
 
 static void sst_set_vidmod_att_ti(struct fb_info *info, const int bpp)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         u8 cr0;
 
         sst_dac_write(DACREG_WMA, 0);   /* backdoor */
@@ -1149,7 +1150,7 @@ static void sst_set_vidmod_att_ti(struct fb_info *info, const int bpp)
 
 static void sst_set_vidmod_ics(struct fb_info *info, const int bpp)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
 
         switch(bpp) {
         case 16:
@@ -1308,7 +1309,7 @@ static int __devinit sst_init(struct fb_info *info, struct sstfb_par *par)
 
 static void  __devexit sst_shutdown(struct fb_info *info)
 {
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         struct pci_dev *dev = par->dev;
         struct pll_timing gfx_timings;
         int Fout;
@@ -1394,12 +1395,6 @@ static int __devinit sstfb_probe(struct pci_dev *pdev,
         struct sst_spec *spec;
         int err;
 
-        struct all_info {
-                struct fb_info info;
-                struct sstfb_par par;
-                u32 pseudo_palette[16];
-        } *all;
-        
         /* Enable device in PCI config. */
         if ((err=pci_enable_device(pdev))) {
                 eprintk("cannot enable device\n");
@@ -1407,14 +1402,13 @@ static int __devinit sstfb_probe(struct pci_dev *pdev,
         }
 
         /* Allocate the fb and par structures.  */
-        all = kmalloc(sizeof(*all), GFP_KERNEL);
-        if (!all)
+        info = framebuffer_alloc(sizeof(struct sstfb_par), &pdev->dev);
+        if (!info)
                 return -ENOMEM;
-        memset(all, 0, sizeof(*all));
-        pci_set_drvdata(pdev, all);
+
+        pci_set_drvdata(pdev, info);
         
-        info = &all->info;
-        par  = info->par = &all->par;
+        par  = info->par;
         fix  = &info->fix;
         
         par->type = id->driver_data;
@@ -1471,7 +1465,7 @@ static int __devinit sstfb_probe(struct pci_dev *pdev,
 
         info->flags     = FBINFO_DEFAULT;
         info->fbops     = &sstfb_ops;
-        info->pseudo_palette = &all->pseudo_palette;
+        info->pseudo_palette = par->palette;
 
         fix->type       = FB_TYPE_PACKED_PIXELS;
         fix->visual     = FB_VISUAL_TRUECOLOR;
@@ -1527,7 +1521,7 @@ fail_mmio_remap:
 fail_fb_mem:
         release_mem_region(fix->mmio_start, info->fix.mmio_len);
 fail_mmio_mem:
-        kfree(info);
+        framebuffer_release(info);
         return -ENXIO;  /* no voodoo detected */
 }
 
@@ -1537,7 +1531,7 @@ static void __devexit sstfb_remove(struct pci_dev *pdev)
         struct fb_info *info;
 
         info = pci_get_drvdata(pdev);
-        par = (struct sstfb_par *) info->par;
+        par = info->par;
         
         sst_shutdown(info);
         unregister_framebuffer(info);
@@ -1545,7 +1539,7 @@ static void __devexit sstfb_remove(struct pci_dev *pdev)
         iounmap(par->mmio_vbase);
         release_mem_region(info->fix.smem_start, 0x400000);
         release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
-        kfree(info);
+        framebuffer_release(info);
 }
 
 
@@ -1613,7 +1607,7 @@ static int sstfb_dump_regs(struct fb_info *info)
 
         const int pci_s = sizeof(pci_regs)/sizeof(pci_regs[0]);
         const int sst_s = sizeof(sst_regs)/sizeof(sst_regs[0]);
-        struct sstfb_par *par = (struct sstfb_par *) info->par;
+        struct sstfb_par *par = info->par;
         struct pci_dev *dev = par->dev;
         u32 pci_res[pci_s];
         u32 sst_res[sst_s];