[PATCH] gxfb: Fixup flatpanel detection

Use the right MSR and bits to detect if the GX is strapped for TFT or CRT

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>

diff --git a/drivers/video/geode/display_gx.h b/drivers/video/geode/display_gx.h
index ba0ccc8..0af33f3 100644 (file)
--- a/drivers/video/geode/display_gx.h
+++ b/drivers/video/geode/display_gx.h
@@ -18,7 +18,7 @@ extern struct geode_dc_ops gx_dc_ops;
 
 /* MSR that tells us if a TFT or CRT is attached */
 #define GLD_MSR_CONFIG   0xC0002001
-#define GLD_MSR_CONFIG_FMT_FP 0x01
+#define GLD_MSR_CONFIG_DM_FP 0x40
 
 /* Display controller registers */
 

diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index 47a6880..cf841ef 100644 (file)
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -328,7 +328,7 @@ static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *i
 
        rdmsrl(GLD_MSR_CONFIG, val);
 
-       if (val & GLD_MSR_CONFIG_FMT_FP)
+       if ((val & GLD_MSR_CONFIG_DM_FP) == GLD_MSR_CONFIG_DM_FP)
                par->enable_crt = 0;
        else
                par->enable_crt = 1;

diff --git a/drivers/video/geode/video_gx.h b/drivers/video/geode/video_gx.h
index 8f1e85b..119d0ab 100644 (file)
--- a/drivers/video/geode/video_gx.h
+++ b/drivers/video/geode/video_gx.h
@@ -14,7 +14,7 @@
 extern struct geode_vid_ops gx_vid_ops;
 
 /* GX Flatpanel control MSR */
-#define GX_VP_MSR_PAD_SELECT           0x2011
+#define GX_VP_MSR_PAD_SELECT           0xC0002011
 #define GX_VP_PAD_SELECT_MASK          0x3FFFFFFF
 #define GX_VP_PAD_SELECT_TFT           0x1FFFFFFF