diff options
| author |   Jordan Crouse <jordan.crouse@amd.com> | 2006-12-08 02:40:56 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-08 08:29:08 -0800 |
| commit | 58219896df521ddd749bee48a8465db69b6163f3 (patch) | |
| tree | 12bacc56be8aa2bac5650e97b767e91bceaffe6c /drivers/video/geode | |
| parent | [PATCH] gxfb: Fixup flatpanel detection (diff) | |
| download | linux-dev-58219896df521ddd749bee48a8465db69b6163f3.tar.xz linux-dev-58219896df521ddd749bee48a8465db69b6163f3.zip | |
[PATCH] gxfb: Turn on the flatpanel power and data
For Geode devices without a flatpanel aware BIOS, this enables the flatpanel
power and data.
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/geode')
| -rw-r--r-- | drivers/video/geode/video_gx.c | 13 | ||||
| -rw-r--r-- | drivers/video/geode/video_gx.h | 2 |
2 files changed, 13 insertions, 2 deletions
diff --git a/drivers/video/geode/video_gx.c b/drivers/video/geode/video_gx.c index bee0741794a3..7f3f18d06718 100644 --- a/drivers/video/geode/video_gx.c +++ b/drivers/video/geode/video_gx.c @@ -220,7 +220,13 @@ gx_configure_tft(struct fb_info *info) /* Set the dither control */ writel(0x70, par->vid_regs + GX_FP_DFC); - /* Turn on the device */ + /* Enable the FP data and power (in case the BIOS didn't) */ + + fp = readl(par->vid_regs + GX_DCFG); + fp |= GX_DCFG_FP_PWR_EN | GX_DCFG_FP_DATA_EN; + writel(fp, par->vid_regs + GX_DCFG); + + /* Unblank the panel */ fp = readl(par->vid_regs + GX_FP_PM); fp |= GX_FP_PM_P; @@ -245,9 +251,12 @@ static void gx_configure_display(struct fb_info *info) writel(misc, par->vid_regs + GX_MISC); /* Write the display configuration */ - dcfg = readl(par->vid_regs + GX_DCFG); + /* Disable hsync and vsync */ + dcfg &= ~(GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN); + writel(dcfg, par->vid_regs + GX_DCFG); + /* Clear bits from existing mode. */ dcfg &= ~(GX_DCFG_CRT_SYNC_SKW_MASK | GX_DCFG_CRT_HSYNC_POL | GX_DCFG_CRT_VSYNC_POL diff --git a/drivers/video/geode/video_gx.h b/drivers/video/geode/video_gx.h index 119d0abddb2d..ce28d8f382dc 100644 --- a/drivers/video/geode/video_gx.h +++ b/drivers/video/geode/video_gx.h @@ -25,6 +25,8 @@ extern struct geode_vid_ops gx_vid_ops; # define GX_DCFG_HSYNC_EN 0x00000002 # define GX_DCFG_VSYNC_EN 0x00000004 # define GX_DCFG_DAC_BL_EN 0x00000008 +# define GX_DCFG_FP_PWR_EN 0x00000040 +# define GX_DCFG_FP_DATA_EN 0x00000080 # define GX_DCFG_CRT_HSYNC_POL 0x00000100 # define GX_DCFG_CRT_VSYNC_POL 0x00000200 # define GX_DCFG_CRT_SYNC_SKW_MASK 0x0001C000 |