[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>

diff --git a/drivers/video/sstfb.c b/drivers/video/sstfb.c
index e0f14df..8a5ce21 100644 (file)
--- 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];

diff --git a/include/video/sstfb.h b/include/video/sstfb.h
index 0d77b52..3570f9c 100644 (file)
--- a/include/video/sstfb.h
+++ b/include/video/sstfb.h
@@ -334,6 +334,7 @@ struct sst_spec {
 };
 
 struct sstfb_par {
+       u32 palette[16];
        unsigned int yDim;
        unsigned int hSyncOn;   /* hsync_len */
        unsigned int hSyncOff;  /* left_margin + xres + right_margin */