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| author | Andres Salomon <dilinger@queued.net> | 2008-04-28 02:15:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 08:58:40 -0700 |
| commit | 4537f93ae88c77a26e77d192ca32a0c2cd359592 (patch) | |
| tree | 457a32bfcf492d567cdc8d9b97b55536335e9d63 /drivers/video | |
| parent | 564820d42aaa55e6ce60a59c0f60832e1330c58b (diff) | |
| download | kernel_samsung_aries-4537f93ae88c77a26e77d192ca32a0c2cd359592.zip kernel_samsung_aries-4537f93ae88c77a26e77d192ca32a0c2cd359592.tar.gz kernel_samsung_aries-4537f93ae88c77a26e77d192ca32a0c2cd359592.tar.bz2 | |
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>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/geode/lxfb_ops.c | 17 | ||||
| -rw-r--r-- | drivers/video/geode/video_gx.c | 18 |
2 files changed, 20 insertions, 15 deletions
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 @@ int lx_blank_display(struct fb_info *info, int blank_mode) { 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 */ diff --git a/drivers/video/geode/video_gx.c b/drivers/video/geode/video_gx.c index 0072d9e..b8d52a8 100644 --- a/drivers/video/geode/video_gx.c +++ b/drivers/video/geode/video_gx.c @@ -299,37 +299,39 @@ int gx_blank_display(struct fb_info *info, int blank_mode) { struct gxfb_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. */ |