The patch titled
stifb: detect cards in double buffer mode more reliably
has been added to the -mm tree. Its filename is
stifb-detect-cards-in-double-buffer-mode-more-reliably.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: stifb: detect cards in double buffer mode more reliably
From: Helge Deller <deller@xxxxxx>
Visualize-EG, Graffiti and A4450A graphics cards on PARISC can
be configured in double-buffer and standard mode, but the stifb
driver supports standard mode only.
This patch detects double-buffered cards more reliable.
Signed-off-by: Helge Deller <deller@xxxxxx>
Signed-off-by: Antonino Daplas <adaplas@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/stifb.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff -puN drivers/video/stifb.c~stifb-detect-cards-in-double-buffer-mode-more-reliably drivers/video/stifb.c
--- a/drivers/video/stifb.c~stifb-detect-cards-in-double-buffer-mode-more-reliably
+++ a/drivers/video/stifb.c
@@ -1100,13 +1100,18 @@ stifb_init_fb(struct sti_struct *sti, in
/* only supported cards are allowed */
switch (fb->id) {
case CRT_ID_VISUALIZE_EG:
- /* look for a double buffering device like e.g. the
- "INTERNAL_EG_DX1024" in the RDI precisionbook laptop
- which won't work. The same device in non-double
- buffering mode returns "INTERNAL_EG_X1024". */
- if (strstr(sti->outptr.dev_name, "EG_DX")) {
- printk(KERN_WARNING
- "stifb: ignoring '%s'. Disable double buffering in IPL menu.\n",
+ /* Visualize cards can run either in "double buffer" or
+ "standard" mode. Depending on the mode, the card reports
+ a different device name, e.g. "INTERNAL_EG_DX1024" in double
+ buffer mode and "INTERNAL_EG_X1024" in standard mode.
+ Since this driver only supports standard mode, we check
+ if the device name contains the string "DX" and tell the
+ user how to reconfigure the card. */
+ if (strstr(sti->outptr.dev_name, "DX")) {
+ printk(KERN_WARNING "WARNING: stifb framebuffer driver does not "
+ "support '%s' in double-buffer mode.\n"
+ KERN_WARNING "WARNING: Please disable the double-buffer mode "
+ "in IPL menu (the PARISC-BIOS).\n",
sti->outptr.dev_name);
goto out_err0;
}
_
Patches currently in -mm which might be from deller@xxxxxx are
stifb-detect-cards-in-double-buffer-mode-more-reliably.patch
-
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