]> nv-tegra.nvidia Code Review - linux-3.10.git/blobdiff - drivers/video/aty/atyfb_base.c
backlight: Fix external uses of backlight internal semaphore
[linux-3.10.git] / drivers / video / aty / atyfb_base.c
index e815b354c09df1f57ba5fa83bab29706ff6029f9..23deb3566020f30280fd96fe302241c866d251d2 100644 (file)
@@ -203,14 +203,6 @@ static void ATIReduceRatio(int *Numerator, int *Denominator)
      *  The Hardware parameters for each card
      */
 
-struct aty_cmap_regs {
-       u8 windex;
-       u8 lut;
-       u8 mask;
-       u8 rindex;
-       u8 cntl;
-};
-
 struct pci_mmap_map {
        unsigned long voff;
        unsigned long poff;
@@ -249,7 +241,8 @@ static int atyfb_sync(struct fb_info *info);
      *  Internal routines
      */
 
-static int aty_init(struct fb_info *info, const char *name);
+static int aty_init(struct fb_info *info);
+static void aty_resume_chip(struct fb_info *info);
 #ifdef CONFIG_ATARI
 static int store_video_par(char *videopar, unsigned char m64_num);
 #endif
@@ -1495,10 +1488,6 @@ static int atyfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
        else
                info->var.accel_flags = 0;
 
-#if 0 /* fbmon is not done. uncomment for 2.5.x -brad */
-       if (!fbmon_valid_timings(pixclock, htotal, vtotal, info))
-               return -EINVAL;
-#endif
        aty_crtc_to_var(&crtc, var);
        var->pixclock = par->pll_ops->pll_to_var(info, &pll);
        return 0;
@@ -1937,17 +1926,14 @@ static void atyfb_save_palette(struct atyfb_par *par, int enter)
                aty_st_8(DAC_CNTL, tmp, par);
                aty_st_8(DAC_MASK, 0xff, par);
 
-               writeb(i, &par->aty_cmap_regs->rindex);
-               atyfb_save.r[enter][i] = readb(&par->aty_cmap_regs->lut);
-               atyfb_save.g[enter][i] = readb(&par->aty_cmap_regs->lut);
-               atyfb_save.b[enter][i] = readb(&par->aty_cmap_regs->lut);
-               writeb(i, &par->aty_cmap_regs->windex);
-               writeb(atyfb_save.r[1 - enter][i],
-                      &par->aty_cmap_regs->lut);
-               writeb(atyfb_save.g[1 - enter][i],
-                      &par->aty_cmap_regs->lut);
-               writeb(atyfb_save.b[1 - enter][i],
-                      &par->aty_cmap_regs->lut);
+               aty_st_8(DAC_R_INDEX, i, par);
+               atyfb_save.r[enter][i] = aty_ld_8(DAC_DATA, par);
+               atyfb_save.g[enter][i] = aty_ld_8(DAC_DATA, par);
+               atyfb_save.b[enter][i] = aty_ld_8(DAC_DATA, par);
+               aty_st_8(DAC_W_INDEX, i, par);
+               aty_st_8(DAC_DATA, atyfb_save.r[1 - enter][i], par);
+               aty_st_8(DAC_DATA, atyfb_save.g[1 - enter][i], par);
+               aty_st_8(DAC_DATA, atyfb_save.b[1 - enter][i], par);
        }
 }
 
@@ -1982,6 +1968,7 @@ static void atyfb_palette(int enter)
 
 #if defined(CONFIG_PM) && defined(CONFIG_PCI)
 
+#ifdef CONFIG_PPC_PMAC
 /* Power management routines. Those are used for PowerBook sleep.
  */
 static int aty_power_mgmt(int sleep, struct atyfb_par *par)
@@ -2038,21 +2025,13 @@ static int aty_power_mgmt(int sleep, struct atyfb_par *par)
 
        return timeout ? 0 : -EIO;
 }
+#endif
 
 static int atyfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 {
        struct fb_info *info = pci_get_drvdata(pdev);
        struct atyfb_par *par = (struct atyfb_par *) info->par;
 
-#ifndef CONFIG_PPC_PMAC
-       /* HACK ALERT ! Once I find a proper way to say to each driver
-        * individually what will happen with it's PCI slot, I'll change
-        * that. On laptops, the AGP slot is just unclocked, so D2 is
-        * expected, while on desktops, the card is powered off
-        */
-       return 0;
-#endif /* CONFIG_PPC_PMAC */
-
        if (state.event == pdev->dev.power.power_state.event)
                return 0;
 
@@ -2070,6 +2049,7 @@ static int atyfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
        par->asleep = 1;
        par->lock_blank = 1;
 
+#ifdef CONFIG_PPC_PMAC
        /* Set chip to "suspend" mode */
        if (aty_power_mgmt(1, par)) {
                par->asleep = 0;
@@ -2079,6 +2059,9 @@ static int atyfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
                release_console_sem();
                return -EIO;
        }
+#else
+       pci_set_power_state(pdev, pci_choose_state(pdev, state));
+#endif
 
        release_console_sem();
 
@@ -2097,8 +2080,15 @@ static int atyfb_pci_resume(struct pci_dev *pdev)
 
        acquire_console_sem();
 
+#ifdef CONFIG_PPC_PMAC
        if (pdev->dev.power.power_state.event == 2)
                aty_power_mgmt(0, par);
+#else
+       pci_set_power_state(pdev, PCI_D0);
+#endif
+
+       aty_resume_chip(info);
+
        par->asleep = 0;
 
        /* Restore display */
@@ -2188,7 +2178,6 @@ static int aty_bl_get_brightness(struct backlight_device *bd)
 }
 
 static struct backlight_properties aty_bl_data = {
-       .owner    = THIS_MODULE,
        .get_brightness = aty_bl_get_brightness,
        .update_status  = aty_bl_update_status,
        .max_brightness = (FB_BACKLIGHT_LEVELS - 1),
@@ -2199,10 +2188,8 @@ static void aty_bl_set_power(struct fb_info *info, int power)
        mutex_lock(&info->bl_mutex);
 
        if (info->bl_dev) {
-               down(&info->bl_dev->sem);
                info->bl_dev->props->power = power;
                __aty_bl_update_status(info->bl_dev);
-               up(&info->bl_dev->sem);
        }
 
        mutex_unlock(&info->bl_mutex);
@@ -2221,7 +2208,7 @@ static void aty_bl_init(struct atyfb_par *par)
 
        snprintf(name, sizeof(name), "atybl%d", info->node);
 
-       bd = backlight_device_register(name, par, &aty_bl_data);
+       bd = backlight_device_register(name, info->dev, par, &aty_bl_data);
        if (IS_ERR(bd)) {
                info->bl_dev = NULL;
                printk(KERN_WARNING "aty: Backlight registration failed\n");
@@ -2235,11 +2222,9 @@ static void aty_bl_init(struct atyfb_par *par)
                0xFF * FB_BACKLIGHT_MAX / MAX_LEVEL);
        mutex_unlock(&info->bl_mutex);
 
-       down(&bd->sem);
        bd->props->brightness = aty_bl_data.max_brightness;
        bd->props->power = FB_BLANK_UNBLANK;
-       bd->props->update_status(bd);
-       up(&bd->sem);
+       backlight_update_status(bd);
 
 #ifdef CONFIG_PMAC_BACKLIGHT
        mutex_lock(&pmac_backlight_mutex);
@@ -2344,24 +2329,16 @@ static int __devinit atyfb_get_timings_from_lcd(struct atyfb_par *par,
 }
 #endif /* defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD) */
 
-static int __devinit aty_init(struct fb_info *info, const char *name)
+static int __devinit aty_init(struct fb_info *info)
 {
        struct atyfb_par *par = (struct atyfb_par *) info->par;
        const char *ramname = NULL, *xtal;
        int gtb_memsize, has_var = 0;
        struct fb_var_screeninfo var;
-       u8 pll_ref_div;
-       u32 i;
-#if defined(CONFIG_PPC)
-       int sense;
-#endif
 
        init_waitqueue_head(&par->vblank.wait);
        spin_lock_init(&par->int_lock);
 
-       par->aty_cmap_regs =
-           (struct aty_cmap_regs __iomem *) (par->ati_regbase + 0xc0);
-
 #ifdef CONFIG_PPC_PMAC
        /* The Apple iBook1 uses non-standard memory frequencies. We detect it
         * and set the frequency manually. */
@@ -2464,18 +2441,21 @@ static int __devinit aty_init(struct fb_info *info, const char *name)
                        par->pll_limits.mclk = 63;
        }
 
-       if (M64_HAS(GTB_DSP)
-           && (pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par))) {
-               int diff1, diff2;
-               diff1 = 510 * 14 / pll_ref_div - par->pll_limits.pll_max;
-               diff2 = 510 * 29 / pll_ref_div - par->pll_limits.pll_max;
-               if (diff1 < 0)
-                       diff1 = -diff1;
-               if (diff2 < 0)
-                       diff2 = -diff2;
-               if (diff2 < diff1) {
-                       par->ref_clk_per = 1000000000000ULL / 29498928;
-                       xtal = "29.498928";
+       if (M64_HAS(GTB_DSP)) {
+               u8 pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par);
+
+               if (pll_ref_div) {
+                       int diff1, diff2;
+                       diff1 = 510 * 14 / pll_ref_div - par->pll_limits.pll_max;
+                       diff2 = 510 * 29 / pll_ref_div - par->pll_limits.pll_max;
+                       if (diff1 < 0)
+                               diff1 = -diff1;
+                       if (diff2 < 0)
+                               diff2 = -diff2;
+                       if (diff2 < diff1) {
+                               par->ref_clk_per = 1000000000000ULL / 29498928;
+                               xtal = "29.498928";
+                       }
                }
        }
 #endif /* CONFIG_FB_ATY_CT */
@@ -2485,10 +2465,10 @@ static int __devinit aty_init(struct fb_info *info, const char *name)
        if(par->pll_ops->get_pll)
                par->pll_ops->get_pll(info, &saved_pll);
 
-       i = aty_ld_le32(MEM_CNTL, par);
+       par->mem_cntl = aty_ld_le32(MEM_CNTL, par);
        gtb_memsize = M64_HAS(GTB_DSP);
        if (gtb_memsize)
-               switch (i & 0xF) {      /* 0xF used instead of MEM_SIZE_ALIAS */
+               switch (par->mem_cntl & 0xF) {  /* 0xF used instead of MEM_SIZE_ALIAS */
                case MEM_SIZE_512K:
                        info->fix.smem_len = 0x80000;
                        break;
@@ -2510,7 +2490,7 @@ static int __devinit aty_init(struct fb_info *info, const char *name)
                default:
                        info->fix.smem_len = 0x80000;
        } else
-               switch (i & MEM_SIZE_ALIAS) {
+               switch (par->mem_cntl & MEM_SIZE_ALIAS) {
                case MEM_SIZE_512K:
                        info->fix.smem_len = 0x80000;
                        break;
@@ -2540,20 +2520,20 @@ static int __devinit aty_init(struct fb_info *info, const char *name)
 
        if (vram) {
                info->fix.smem_len = vram * 1024;
-               i = i & ~(gtb_memsize ? 0xF : MEM_SIZE_ALIAS);
+               par->mem_cntl &= ~(gtb_memsize ? 0xF : MEM_SIZE_ALIAS);
                if (info->fix.smem_len <= 0x80000)
-                       i |= MEM_SIZE_512K;
+                       par->mem_cntl |= MEM_SIZE_512K;
                else if (info->fix.smem_len <= 0x100000)
-                       i |= MEM_SIZE_1M;
+                       par->mem_cntl |= MEM_SIZE_1M;
                else if (info->fix.smem_len <= 0x200000)
-                       i |= gtb_memsize ? MEM_SIZE_2M_GTB : MEM_SIZE_2M;
+                       par->mem_cntl |= gtb_memsize ? MEM_SIZE_2M_GTB : MEM_SIZE_2M;
                else if (info->fix.smem_len <= 0x400000)
-                       i |= gtb_memsize ? MEM_SIZE_4M_GTB : MEM_SIZE_4M;
+                       par->mem_cntl |= gtb_memsize ? MEM_SIZE_4M_GTB : MEM_SIZE_4M;
                else if (info->fix.smem_len <= 0x600000)
-                       i |= gtb_memsize ? MEM_SIZE_6M_GTB : MEM_SIZE_6M;
+                       par->mem_cntl |= gtb_memsize ? MEM_SIZE_6M_GTB : MEM_SIZE_6M;
                else
-                       i |= gtb_memsize ? MEM_SIZE_8M_GTB : MEM_SIZE_8M;
-               aty_st_le32(MEM_CNTL, i, par);
+                       par->mem_cntl |= gtb_memsize ? MEM_SIZE_8M_GTB : MEM_SIZE_8M;
+               aty_st_le32(MEM_CNTL, par->mem_cntl, par);
        }
 
        /*
@@ -2581,7 +2561,7 @@ static int __devinit aty_init(struct fb_info *info, const char *name)
               info->fix.smem_len == 0x80000 ? 'K' : 'M', ramname, xtal, par->pll_limits.pll_max,
               par->pll_limits.mclk, par->pll_limits.xclk);
 
-#if defined(DEBUG) && defined(CONFIG_ATY_CT)
+#if defined(DEBUG) && defined(CONFIG_FB_ATY_CT)
        if (M64_HAS(INTEGRATED)) {
                int i;
                printk("debug atyfb: BUS_CNTL DAC_CNTL MEM_CNTL EXT_MEM_CNTL CRTC_GEN_CNTL "
@@ -2599,11 +2579,12 @@ static int __devinit aty_init(struct fb_info *info, const char *name)
 #endif
        if(par->pll_ops->init_pll)
                par->pll_ops->init_pll(info, &par->pll);
+       if (par->pll_ops->resume_pll)
+               par->pll_ops->resume_pll(info, &par->pll);
 
        /*
-        *  Last page of 8 MB (4 MB on ISA) aperture is MMIO
-        *  FIXME: we should use the auxiliary aperture instead so we can access
-        *  the full 8 MB of video RAM on 8 MB boards
+        *  Last page of 8 MB (4 MB on ISA) aperture is MMIO,
+        *  unless the auxiliary register aperture is used.
         */
 
        if (!par->aux_start &&
@@ -2669,6 +2650,7 @@ static int __devinit aty_init(struct fb_info *info, const char *name)
                                has_var = 1;
                } else {
                        if (default_vmode == VMODE_CHOOSE) {
+                               int sense;
                                if (M64_HAS(G3_PB_1024x768))
                                        /* G3 PowerBook with 1024x768 LCD */
                                        default_vmode = VMODE_1024_768_60;
@@ -2749,7 +2731,7 @@ static int __devinit aty_init(struct fb_info *info, const char *name)
        fb_list = info;
 
        PRINTKI("fb%d: %s frame buffer device on %s\n",
-              info->node, info->fix.id, name);
+               info->node, info->fix.id, par->bus_type == ISA ? "ISA" : "PCI");
        return 0;
 
 aty_init_exit:
@@ -2770,6 +2752,19 @@ aty_init_exit:
        return -1;
 }
 
+static void aty_resume_chip(struct fb_info *info)
+{
+       struct atyfb_par *par = info->par;
+
+       aty_st_le32(MEM_CNTL, par->mem_cntl, par);
+
+       if (par->pll_ops->resume_pll)
+               par->pll_ops->resume_pll(info, &par->pll);
+
+       if (par->aux_start)
+               aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par);
+}
+
 #ifdef CONFIG_ATARI
 static int __devinit store_video_par(char *video_str, unsigned char m64_num)
 {
@@ -2826,9 +2821,9 @@ static int atyfb_blank(int blank, struct fb_info *info)
 #endif
 
        gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par);
+       gen_cntl &= ~0x400004c;
        switch (blank) {
-               case FB_BLANK_UNBLANK:
-                       gen_cntl &= ~0x400004c;
+               case FB_BLANK_UNBLANK:
                        break;
                case FB_BLANK_NORMAL:
                        gen_cntl |= 0x4000040;
@@ -2863,17 +2858,10 @@ static int atyfb_blank(int blank, struct fb_info *info)
 static void aty_st_pal(u_int regno, u_int red, u_int green, u_int blue,
                       const struct atyfb_par *par)
 {
-#ifdef CONFIG_ATARI
-       out_8(&par->aty_cmap_regs->windex, regno);
-       out_8(&par->aty_cmap_regs->lut, red);
-       out_8(&par->aty_cmap_regs->lut, green);
-       out_8(&par->aty_cmap_regs->lut, blue);
-#else
-       writeb(regno, &par->aty_cmap_regs->windex);
-       writeb(red, &par->aty_cmap_regs->lut);
-       writeb(green, &par->aty_cmap_regs->lut);
-       writeb(blue, &par->aty_cmap_regs->lut);
-#endif
+       aty_st_8(DAC_W_INDEX, regno, par);
+       aty_st_8(DAC_DATA, red, par);
+       aty_st_8(DAC_DATA, green, par);
+       aty_st_8(DAC_DATA, blue, par);
 }
 
     /*
@@ -2964,8 +2952,6 @@ extern void (*prom_palette) (int);
 static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
                        struct fb_info *info, unsigned long addr)
 {
-       extern int con_is_present(void);
-
        struct atyfb_par *par = info->par;
        struct pcidev_cookie *pcp;
        char prop[128];
@@ -3182,7 +3168,7 @@ static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
 
 #ifdef __i386__
 #ifdef CONFIG_FB_ATY_GENERIC_LCD
-static void aty_init_lcd(struct atyfb_par *par, u32 bios_base)
+static void __devinit aty_init_lcd(struct atyfb_par *par, u32 bios_base)
 {
        u32 driv_inf_tab, sig;
        u16 lcd_ofs;
@@ -3527,6 +3513,10 @@ static int __devinit atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *i
 atyfb_setup_generic_fail:
        iounmap(par->ati_regbase);
        par->ati_regbase = NULL;
+       if (info->screen_base) {
+               iounmap(info->screen_base);
+               info->screen_base = NULL;
+       }
        return ret;
 }
 
@@ -3594,7 +3584,7 @@ static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_devi
        pci_set_drvdata(pdev, info);
 
        /* Init chip & register framebuffer */
-       if (aty_init(info, "PCI"))
+       if (aty_init(info))
                goto err_release_io;
 
 #ifdef __sparc__
@@ -3641,12 +3631,13 @@ err_release_mem:
 
 #ifdef CONFIG_ATARI
 
-static int __devinit atyfb_atari_probe(void)
+static int __init atyfb_atari_probe(void)
 {
        struct atyfb_par *par;
        struct fb_info *info;
        int m64_num;
        u32 clock_r;
+       int num_found = 0;
 
        for (m64_num = 0; m64_num < mach64_count; m64_num++) {
                if (!phys_vmembase[m64_num] || !phys_size[m64_num] ||
@@ -3694,16 +3685,34 @@ static int __devinit atyfb_atari_probe(void)
                        break;
                }
 
-               if (aty_init(info, "ISA bus")) {
+               /* Fake pci_id for correct_chipset() */
+               switch (aty_ld_le32(CONFIG_CHIP_ID, par) & CFG_CHIP_TYPE) {
+               case 0x00d7:
+                       par->pci_id = PCI_CHIP_MACH64GX;
+                       break;
+               case 0x0057:
+                       par->pci_id = PCI_CHIP_MACH64CX;
+                       break;
+               default:
+                       break;
+               }
+
+               if (correct_chipset(par) || aty_init(info)) {
+                       iounmap(info->screen_base);
+                       iounmap(par->ati_regbase);
                        framebuffer_release(info);
-                       /* This is insufficient! kernel_map has added two large chunks!! */
-                       return -ENXIO;
+               } else {
+                       num_found++;
                }
        }
+
+       return num_found ? 0 : -ENXIO;
 }
 
 #endif /* CONFIG_ATARI */
 
+#ifdef CONFIG_PCI
+
 static void __devexit atyfb_remove(struct fb_info *info)
 {
        struct atyfb_par *par = (struct atyfb_par *) info->par;
@@ -3751,7 +3760,6 @@ static void __devexit atyfb_remove(struct fb_info *info)
        framebuffer_release(info);
 }
 
-#ifdef CONFIG_PCI
 
 static void __devexit atyfb_pci_remove(struct pci_dev *pdev)
 {
@@ -3786,7 +3794,7 @@ static struct pci_driver atyfb_driver = {
 #endif /* CONFIG_PCI */
 
 #ifndef MODULE
-static int __devinit atyfb_setup(char *options)
+static int __init atyfb_setup(char *options)
 {
        char *this_opt;
 
@@ -3858,7 +3866,7 @@ static int __devinit atyfb_setup(char *options)
 }
 #endif  /*  MODULE  */
 
-static int __devinit atyfb_init(void)
+static int __init atyfb_init(void)
 {
     int err1 = 1, err2 = 1;
 #ifndef MODULE