lxfb/gxfb: when blanking with FB_BLANK_POWERDOWN, also turn off the CRT
The Display Control's CRT_EN can be shut off when we enter FB_BLANK_POWERDOWN
in an attempt to save additional power.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/geode/lxfb_ops.c b/drivers/video/geode/lxfb_ops.c
index 7abc439..531fcdc 100644
--- a/drivers/video/geode/lxfb_ops.c
+++ b/drivers/video/geode/lxfb_ops.c
@@ -524,37 +524,40 @@
{
struct lxfb_par *par = info->par;
u32 dcfg, fp_pm;
- int blank, hsync, vsync;
+ int blank, hsync, vsync, crt;
/* CRT power saving modes. */
switch (blank_mode) {
case FB_BLANK_UNBLANK:
- blank = 0; hsync = 1; vsync = 1;
+ blank = 0; hsync = 1; vsync = 1; crt = 1;
break;
case FB_BLANK_NORMAL:
- blank = 1; hsync = 1; vsync = 1;
+ blank = 1; hsync = 1; vsync = 1; crt = 1;
break;
case FB_BLANK_VSYNC_SUSPEND:
- blank = 1; hsync = 1; vsync = 0;
+ blank = 1; hsync = 1; vsync = 0; crt = 1;
break;
case FB_BLANK_HSYNC_SUSPEND:
- blank = 1; hsync = 0; vsync = 1;
+ blank = 1; hsync = 0; vsync = 1; crt = 1;
break;
case FB_BLANK_POWERDOWN:
- blank = 1; hsync = 0; vsync = 0;
+ blank = 1; hsync = 0; vsync = 0; crt = 0;
break;
default:
return -EINVAL;
}
dcfg = read_vp(par, VP_DCFG);
- dcfg &= ~(VP_DCFG_DAC_BL_EN | VP_DCFG_HSYNC_EN | VP_DCFG_VSYNC_EN);
+ dcfg &= ~(VP_DCFG_DAC_BL_EN | VP_DCFG_HSYNC_EN | VP_DCFG_VSYNC_EN |
+ VP_DCFG_CRT_EN);
if (!blank)
dcfg |= VP_DCFG_DAC_BL_EN;
if (hsync)
dcfg |= VP_DCFG_HSYNC_EN;
if (vsync)
dcfg |= VP_DCFG_VSYNC_EN;
+ if (crt)
+ dcfg |= VP_DCFG_CRT_EN;
write_vp(par, VP_DCFG, dcfg);
/* Power on/off flat panel */