i2c: tegra: Add stub runtime power management
[linux-2.6.git] / drivers / video / s3c-fb.c
index 2d075f0..4aecf21 100644 (file)
@@ -182,6 +182,7 @@ struct s3c_fb_vsync {
 
 /**
  * struct s3c_fb - overall hardware state of the hardware
+ * @slock: The spinlock protection for this data sturcture.
  * @dev: The device that we bound to, for printing, etc.
  * @regs_res: The resource we claimed for the IO registers.
  * @bus_clk: The clk (hclk) feeding our interface and possibly pixclk.
@@ -195,6 +196,7 @@ struct s3c_fb_vsync {
  * @vsync_info: VSYNC-related information (count, queues...)
  */
 struct s3c_fb {
+       spinlock_t              slock;
        struct device           *dev;
        struct resource         *regs_res;
        struct clk              *bus_clk;
@@ -233,13 +235,12 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var,
                            struct fb_info *info)
 {
        struct s3c_fb_win *win = info->par;
-       struct s3c_fb_pd_win *windata = win->windata;
        struct s3c_fb *sfb = win->parent;
 
        dev_dbg(sfb->dev, "checking parameters\n");
 
-       var->xres_virtual = max((unsigned int)windata->virtual_x, var->xres);
-       var->yres_virtual = max((unsigned int)windata->virtual_y, var->yres);
+       var->xres_virtual = max(var->xres_virtual, var->xres);
+       var->yres_virtual = max(var->yres_virtual, var->yres);
 
        if (!s3c_fb_validate_win_bpp(win, var->bits_per_pixel)) {
                dev_dbg(sfb->dev, "win %d: unsupported bpp %d\n",
@@ -300,6 +301,7 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var,
                var->blue.length        = 5;
                break;
 
+       case 32:
        case 28:
        case 25:
                var->transp.length      = var->bits_per_pixel - 24;
@@ -308,7 +310,6 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var,
        case 24:
                /* our 24bpp is unpacked, so 32bpp */
                var->bits_per_pixel     = 32;
-       case 32:
                var->red.offset         = 16;
                var->red.length         = 8;
                var->green.offset       = 8;
@@ -556,6 +557,13 @@ static int s3c_fb_set_par(struct fb_info *info)
        vidosd_set_alpha(win, alpha);
        vidosd_set_size(win, data);
 
+       /* Enable DMA channel for this window */
+       if (sfb->variant.has_shadowcon) {
+               data = readl(sfb->regs + SHADOWCON);
+               data |= SHADOWCON_CHx_ENABLE(win_no);
+               writel(data, sfb->regs + SHADOWCON);
+       }
+
        data = WINCONx_ENWIN;
 
        /* note, since we have to round up the bits-per-pixel, we end up
@@ -635,13 +643,6 @@ static int s3c_fb_set_par(struct fb_info *info)
        writel(data, regs + sfb->variant.wincon + (win_no * 4));
        writel(0x0, regs + sfb->variant.winmap + (win_no * 4));
 
-       /* Enable DMA channel for this window */
-       if (sfb->variant.has_shadowcon) {
-               data = readl(sfb->regs + SHADOWCON);
-               data |= SHADOWCON_CHx_ENABLE(win_no);
-               writel(data, sfb->regs + SHADOWCON);
-       }
-
        shadow_protect_win(win, 0);
 
        return 0;
@@ -947,6 +948,8 @@ static irqreturn_t s3c_fb_irq(int irq, void *dev_id)
        void __iomem  *regs = sfb->regs;
        u32 irq_sts_reg;
 
+       spin_lock(&sfb->slock);
+
        irq_sts_reg = readl(regs + VIDINTCON1);
 
        if (irq_sts_reg & VIDINTCON1_INT_FRAME) {
@@ -963,6 +966,7 @@ static irqreturn_t s3c_fb_irq(int irq, void *dev_id)
         */
        s3c_fb_disable_irq(sfb);
 
+       spin_unlock(&sfb->slock);
        return IRQ_HANDLED;
 }
 
@@ -1339,6 +1343,8 @@ static int __devinit s3c_fb_probe(struct platform_device *pdev)
        sfb->pdata = pd;
        sfb->variant = fbdrv->variant;
 
+       spin_lock_init(&sfb->slock);
+
        sfb->bus_clk = clk_get(dev, "lcd");
        if (IS_ERR(sfb->bus_clk)) {
                dev_err(dev, "failed to get bus clock\n");
@@ -1442,8 +1448,7 @@ err_ioremap:
        iounmap(sfb->regs);
 
 err_req_region:
-       release_resource(sfb->regs_res);
-       kfree(sfb->regs_res);
+       release_mem_region(sfb->regs_res->start, resource_size(sfb->regs_res));
 
 err_clk:
        clk_disable(sfb->bus_clk);
@@ -1479,14 +1484,12 @@ static int __devexit s3c_fb_remove(struct platform_device *pdev)
        clk_disable(sfb->bus_clk);
        clk_put(sfb->bus_clk);
 
-       release_resource(sfb->regs_res);
-       kfree(sfb->regs_res);
-
-       kfree(sfb);
+       release_mem_region(sfb->regs_res->start, resource_size(sfb->regs_res));
 
        pm_runtime_put_sync(sfb->dev);
        pm_runtime_disable(sfb->dev);
 
+       kfree(sfb);
        return 0;
 }
 
@@ -1521,7 +1524,8 @@ static int s3c_fb_resume(struct device *dev)
 
        clk_enable(sfb->bus_clk);
 
-       /* setup registers */
+       /* setup gpio and output polarity controls */
+       pd->setup_gpio();
        writel(pd->vidcon1, sfb->regs + VIDCON1);
 
        /* zero all windows before we do anything */
@@ -1579,7 +1583,8 @@ static int s3c_fb_runtime_resume(struct device *dev)
 
        clk_enable(sfb->bus_clk);
 
-       /* setup registers */
+       /* setup gpio and output polarity controls */
+       pd->setup_gpio();
        writel(pd->vidcon1, sfb->regs + VIDCON1);
 
        /* zero all windows before we do anything */
@@ -1623,28 +1628,31 @@ static struct s3c_fb_win_variant s3c_fb_data_64xx_wins[] = {
                .has_osd_c      = 1,
                .osd_size_off   = 0x8,
                .palette_sz     = 256,
-               .valid_bpp      = VALID_BPP1248 | VALID_BPP(16) | VALID_BPP(24),
+               .valid_bpp      = (VALID_BPP1248 | VALID_BPP(16) |
+                                  VALID_BPP(18) | VALID_BPP(24)),
        },
        [1] = {
                .has_osd_c      = 1,
                .has_osd_d      = 1,
-               .osd_size_off   = 0x12,
+               .osd_size_off   = 0xc,
                .has_osd_alpha  = 1,
                .palette_sz     = 256,
                .valid_bpp      = (VALID_BPP1248 | VALID_BPP(16) |
                                   VALID_BPP(18) | VALID_BPP(19) |
-                                  VALID_BPP(24) | VALID_BPP(25)),
+                                  VALID_BPP(24) | VALID_BPP(25) |
+                                  VALID_BPP(28)),
        },
        [2] = {
                .has_osd_c      = 1,
                .has_osd_d      = 1,
-               .osd_size_off   = 0x12,
+               .osd_size_off   = 0xc,
                .has_osd_alpha  = 1,
                .palette_sz     = 16,
                .palette_16bpp  = 1,
                .valid_bpp      = (VALID_BPP1248 | VALID_BPP(16) |
                                   VALID_BPP(18) | VALID_BPP(19) |
-                                  VALID_BPP(24) | VALID_BPP(25)),
+                                  VALID_BPP(24) | VALID_BPP(25) |
+                                  VALID_BPP(28)),
        },
        [3] = {
                .has_osd_c      = 1,
@@ -1653,7 +1661,8 @@ static struct s3c_fb_win_variant s3c_fb_data_64xx_wins[] = {
                .palette_16bpp  = 1,
                .valid_bpp      = (VALID_BPP124  | VALID_BPP(16) |
                                   VALID_BPP(18) | VALID_BPP(19) |
-                                  VALID_BPP(24) | VALID_BPP(25)),
+                                  VALID_BPP(24) | VALID_BPP(25) |
+                                  VALID_BPP(28)),
        },
        [4] = {
                .has_osd_c      = 1,
@@ -1662,7 +1671,65 @@ static struct s3c_fb_win_variant s3c_fb_data_64xx_wins[] = {
                .palette_16bpp  = 1,
                .valid_bpp      = (VALID_BPP(1) | VALID_BPP(2) |
                                   VALID_BPP(16) | VALID_BPP(18) |
-                                  VALID_BPP(24) | VALID_BPP(25)),
+                                  VALID_BPP(19) | VALID_BPP(24) |
+                                  VALID_BPP(25) | VALID_BPP(28)),
+       },
+};
+
+static struct s3c_fb_win_variant s3c_fb_data_s5p_wins[] = {
+       [0] = {
+               .has_osd_c      = 1,
+               .osd_size_off   = 0x8,
+               .palette_sz     = 256,
+               .valid_bpp      = (VALID_BPP1248 | VALID_BPP(13) |
+                                  VALID_BPP(15) | VALID_BPP(16) |
+                                  VALID_BPP(18) | VALID_BPP(19) |
+                                  VALID_BPP(24) | VALID_BPP(25) |
+                                  VALID_BPP(32)),
+       },
+       [1] = {
+               .has_osd_c      = 1,
+               .has_osd_d      = 1,
+               .osd_size_off   = 0xc,
+               .has_osd_alpha  = 1,
+               .palette_sz     = 256,
+               .valid_bpp      = (VALID_BPP1248 | VALID_BPP(13) |
+                                  VALID_BPP(15) | VALID_BPP(16) |
+                                  VALID_BPP(18) | VALID_BPP(19) |
+                                  VALID_BPP(24) | VALID_BPP(25) |
+                                  VALID_BPP(32)),
+       },
+       [2] = {
+               .has_osd_c      = 1,
+               .has_osd_d      = 1,
+               .osd_size_off   = 0xc,
+               .has_osd_alpha  = 1,
+               .palette_sz     = 256,
+               .valid_bpp      = (VALID_BPP1248 | VALID_BPP(13) |
+                                  VALID_BPP(15) | VALID_BPP(16) |
+                                  VALID_BPP(18) | VALID_BPP(19) |
+                                  VALID_BPP(24) | VALID_BPP(25) |
+                                  VALID_BPP(32)),
+       },
+       [3] = {
+               .has_osd_c      = 1,
+               .has_osd_alpha  = 1,
+               .palette_sz     = 256,
+               .valid_bpp      = (VALID_BPP1248 | VALID_BPP(13) |
+                                  VALID_BPP(15) | VALID_BPP(16) |
+                                  VALID_BPP(18) | VALID_BPP(19) |
+                                  VALID_BPP(24) | VALID_BPP(25) |
+                                  VALID_BPP(32)),
+       },
+       [4] = {
+               .has_osd_c      = 1,
+               .has_osd_alpha  = 1,
+               .palette_sz     = 256,
+               .valid_bpp      = (VALID_BPP1248 | VALID_BPP(13) |
+                                  VALID_BPP(15) | VALID_BPP(16) |
+                                  VALID_BPP(18) | VALID_BPP(19) |
+                                  VALID_BPP(24) | VALID_BPP(25) |
+                                  VALID_BPP(32)),
        },
 };
 
@@ -1719,11 +1786,11 @@ static struct s3c_fb_driverdata s3c_fb_data_s5pc100 = {
 
                .has_prtcon     = 1,
        },
-       .win[0] = &s3c_fb_data_64xx_wins[0],
-       .win[1] = &s3c_fb_data_64xx_wins[1],
-       .win[2] = &s3c_fb_data_64xx_wins[2],
-       .win[3] = &s3c_fb_data_64xx_wins[3],
-       .win[4] = &s3c_fb_data_64xx_wins[4],
+       .win[0] = &s3c_fb_data_s5p_wins[0],
+       .win[1] = &s3c_fb_data_s5p_wins[1],
+       .win[2] = &s3c_fb_data_s5p_wins[2],
+       .win[3] = &s3c_fb_data_s5p_wins[3],
+       .win[4] = &s3c_fb_data_s5p_wins[4],
 };
 
 static struct s3c_fb_driverdata s3c_fb_data_s5pv210 = {
@@ -1749,11 +1816,11 @@ static struct s3c_fb_driverdata s3c_fb_data_s5pv210 = {
 
                .has_shadowcon  = 1,
        },
-       .win[0] = &s3c_fb_data_64xx_wins[0],
-       .win[1] = &s3c_fb_data_64xx_wins[1],
-       .win[2] = &s3c_fb_data_64xx_wins[2],
-       .win[3] = &s3c_fb_data_64xx_wins[3],
-       .win[4] = &s3c_fb_data_64xx_wins[4],
+       .win[0] = &s3c_fb_data_s5p_wins[0],
+       .win[1] = &s3c_fb_data_s5p_wins[1],
+       .win[2] = &s3c_fb_data_s5p_wins[2],
+       .win[3] = &s3c_fb_data_s5p_wins[3],
+       .win[4] = &s3c_fb_data_s5p_wins[4],
 };
 
 /* S3C2443/S3C2416 style hardware */