diff options
| -rw-r--r-- | drivers/video/s3c-fb.c | 55 |
1 files changed, 28 insertions, 27 deletions
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c index b1a75a024a2c..be4c218bb931 100644 --- a/drivers/video/s3c-fb.c +++ b/drivers/video/s3c-fb.c @@ -441,6 +441,32 @@ static void shadow_protect_win(struct s3c_fb_win *win, bool protect) } /** + * s3c_fb_enable() - Set the state of the main LCD output + * @sfb: The main framebuffer state. + * @enable: The state to set. + */ +static void s3c_fb_enable(struct s3c_fb *sfb, int enable) +{ + u32 vidcon0 = readl(sfb->regs + VIDCON0); + + if (enable) + vidcon0 |= VIDCON0_ENVID | VIDCON0_ENVID_F; + else { + /* see the note in the framebuffer datasheet about + * why you cannot take both of these bits down at the + * same time. */ + + if (!(vidcon0 & VIDCON0_ENVID)) + return; + + vidcon0 |= VIDCON0_ENVID; + vidcon0 &= ~VIDCON0_ENVID_F; + } + + writel(vidcon0, sfb->regs + VIDCON0); +} + +/** * s3c_fb_set_par() - framebuffer request to set new framebuffer state. * @info: The framebuffer to change. * @@ -510,9 +536,10 @@ static int s3c_fb_set_par(struct fb_info *info) if (sfb->variant.is_2443) data |= (1 << 5); - data |= VIDCON0_ENVID | VIDCON0_ENVID_F; writel(data, regs + VIDCON0); + s3c_fb_enable(sfb, 1); + data = VIDTCON0_VBPD(var->upper_margin - 1) | VIDTCON0_VFPD(var->lower_margin - 1) | VIDTCON0_VSPW(var->vsync_len - 1); @@ -761,32 +788,6 @@ static int s3c_fb_setcolreg(unsigned regno, } /** - * s3c_fb_enable() - Set the state of the main LCD output - * @sfb: The main framebuffer state. - * @enable: The state to set. - */ -static void s3c_fb_enable(struct s3c_fb *sfb, int enable) -{ - u32 vidcon0 = readl(sfb->regs + VIDCON0); - - if (enable) - vidcon0 |= VIDCON0_ENVID | VIDCON0_ENVID_F; - else { - /* see the note in the framebuffer datasheet about - * why you cannot take both of these bits down at the - * same time. */ - - if (!(vidcon0 & VIDCON0_ENVID)) - return; - - vidcon0 |= VIDCON0_ENVID; - vidcon0 &= ~VIDCON0_ENVID_F; - } - - writel(vidcon0, sfb->regs + VIDCON0); -} - -/** * s3c_fb_blank() - blank or unblank the given window * @blank_mode: The blank state from FB_BLANK_* * @info: The framebuffer to blank. |