diff options
Diffstat (limited to 'drivers/video/s3c-fb.c')
| -rw-r--r-- | drivers/video/s3c-fb.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c index 5f9d8e69029..69bf9d07c23 100644 --- a/drivers/video/s3c-fb.c +++ b/drivers/video/s3c-fb.c @@ -189,7 +189,7 @@ struct s3c_fb_vsync { /** * struct s3c_fb - overall hardware state of the hardware - * @slock: The spinlock protection for this data sturcture. + * @slock: The spinlock protection for this data sturucture. * @dev: The device that we bound to, for printing, etc. * @bus_clk: The clk (hclk) feeding our interface and possibly pixclk. * @lcd_clk: The clk (sclk) feeding pixclk. @@ -361,7 +361,7 @@ static int s3c_fb_calc_pixclk(struct s3c_fb *sfb, unsigned int pixclk) result = (unsigned int)tmp / 1000; dev_dbg(sfb->dev, "pixclk=%u, clk=%lu, div=%d (%lu)\n", - pixclk, clk, result, clk / result); + pixclk, clk, result, result ? clk / result : clk); return result; } @@ -1348,8 +1348,14 @@ static void s3c_fb_clear_win(struct s3c_fb *sfb, int win) writel(0, regs + VIDOSD_A(win, sfb->variant)); writel(0, regs + VIDOSD_B(win, sfb->variant)); writel(0, regs + VIDOSD_C(win, sfb->variant)); - reg = readl(regs + SHADOWCON); - writel(reg & ~SHADOWCON_WINx_PROTECT(win), regs + SHADOWCON); + + if (sfb->variant.has_shadowcon) { + reg = readl(sfb->regs + SHADOWCON); + reg &= ~(SHADOWCON_WINx_PROTECT(win) | + SHADOWCON_CHx_ENABLE(win) | + SHADOWCON_CHx_LOCAL_ENABLE(win)); + writel(reg, sfb->regs + SHADOWCON); + } } static int __devinit s3c_fb_probe(struct platform_device *pdev) |