Re: [PATCH 6/6] [PATCH] gxfb: Turn on the flatpanel power and data
From: James Simmons <hidden>
Date: 2006-11-29 14:22:29
Acked-By: James Simmons <redacted> On Tue, 28 Nov 2006, Jordan Crouse wrote:
quoted hunk ↗ jump to hunk
From: Jordan Crouse <redacted> For Geode devices without a flatpanel aware BIOS, this enables the flatpanel power and data. Signed-off-by: Jordan Crouse <redacted> --- drivers/video/geode/video_gx.c | 13 +++++++++++-- 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 e6a4c70..ed6a174 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 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_POLdiff --git a/drivers/video/geode/video_gx.h b/drivers/video/geode/video_gx.h index 119d0ab..ce28d8f 100644 --- a/drivers/video/geode/video_gx.h +++ b/drivers/video/geode/video_gx.h@@ -25,6 +25,8 @@ # define GX_DCFG_CRT_EN 0x00000001 # 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 -------------------------------------------------------------------------Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Linux-fbdev-devel mailing list Linux-fbdev-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-fbdev-devel
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