diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/geode/video_gx.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/video/geode/video_gx.c b/drivers/video/geode/video_gx.c index 06245a8400c..cfe2c80b025 100644 --- a/drivers/video/geode/video_gx.c +++ b/drivers/video/geode/video_gx.c @@ -239,18 +239,6 @@ static void gx_configure_display(struct fb_info *info) struct geodefb_par *par = info->par; u32 dcfg, misc; - /* Set up the MISC register */ - - misc = readl(par->vid_regs + GX_MISC); - - /* Power up the DAC */ - misc &= ~(GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN); - - /* Disable gamma correction */ - misc |= GX_MISC_GAM_EN; - - writel(misc, par->vid_regs + GX_MISC); - /* Write the display configuration */ dcfg = readl(par->vid_regs + GX_DCFG); @@ -269,14 +257,28 @@ static void gx_configure_display(struct fb_info *info) /* Enable hsync and vsync. */ dcfg |= GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN; - /* Only change the sync polarities if we are running - * in CRT mode. The FP polarities will be handled in - * gxfb_configure_tft */ + misc = readl(par->vid_regs + GX_MISC); + + /* Disable gamma correction */ + misc |= GX_MISC_GAM_EN; + if (par->enable_crt) { + + /* Power up the CRT DACs */ + misc &= ~(GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN); + writel(misc, par->vid_regs + GX_MISC); + + /* Only change the sync polarities if we are running + * in CRT mode. The FP polarities will be handled in + * gxfb_configure_tft */ if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT)) dcfg |= GX_DCFG_CRT_HSYNC_POL; if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT)) dcfg |= GX_DCFG_CRT_VSYNC_POL; + } else { + /* Power down the CRT DACs if in FP mode */ + misc |= (GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN); + writel(misc, par->vid_regs + GX_MISC); } /* Enable the display logic */ |