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path: root/drivers/video/geode
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Diffstat (limited to 'drivers/video/geode')
-rw-r--r--drivers/video/geode/video_gx.c32
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 */