* [PATCH 1/6] atyfb: Add boot/module option to override composite sync
@ 2005-03-13 0:32 Antonino A. Daplas
2005-03-13 9:04 ` Geert Uytterhoeven
2005-03-13 15:37 ` Alexander Kern
0 siblings, 2 replies; 3+ messages in thread
From: Antonino A. Daplas @ 2005-03-13 0:32 UTC (permalink / raw)
To: Andrew Morton; +Cc: Linux Fbdev development list
Some SPARC-based displays need the composite sync set to high.
Since none of the entries in the default db has the composite
sync set to high, using fb_find_mode() will produce a blank
display.
Add this new option to Documentation/fb/aty128fb.txt
Signed-off-by: Antonino Daplas <adaplas@pol.net>
---
Documentation/fb/aty128fb.txt | 1 +
drivers/video/aty/atyfb_base.c | 13 +++++++++++++
2 files changed, 14 insertions(+)
diff -Nru a/Documentation/fb/aty128fb.txt b/Documentation/fb/aty128fb.txt
--- a/Documentation/fb/aty128fb.txt 2005-03-12 22:23:57 +08:00
+++ b/Documentation/fb/aty128fb.txt 2005-03-13 07:35:30 +08:00
@@ -54,6 +54,7 @@
noaccel - do not use acceleration engine. It is default.
accel - use acceleration engine. Not finished.
+comp_sync- set composite sync, 0 for low, 1 for high.
vmode:x - chooses PowerMacintosh video mode <x>. Depreciated.
cmode:x - chooses PowerMacintosh colour mode <x>. Depreciated.
<XxX@X> - selects startup videomode. See modedb.txt for detailed
diff -Nru a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
--- a/drivers/video/aty/atyfb_base.c 2005-03-12 23:23:49 +08:00
+++ b/drivers/video/aty/atyfb_base.c 2005-03-13 07:35:31 +08:00
@@ -307,6 +307,7 @@
static int pll;
static int mclk;
static int xclk;
+static int comp_sync __initdata = -1;
static char *mode;
#ifdef CONFIG_PPC
@@ -2527,6 +2528,13 @@
else
var.accel_flags |= FB_ACCELF_TEXT;
+ if (comp_sync != -1) {
+ if (!comp_sync)
+ var.sync &= ~FB_SYNC_COMP_HIGH_ACT;
+ else
+ var.sync |= FB_SYNC_COMP_HIGH_ACT;
+ }
+
if (var.yres == var.yres_virtual) {
u32 videoram = (info->fix.smem_len - (PAGE_SIZE << 2));
var.yres_virtual = ((videoram * 8) / var.bits_per_pixel) / var.xres_virtual;
@@ -3612,6 +3620,8 @@
mclk = simple_strtoul(this_opt + 5, NULL, 0);
else if (!strncmp(this_opt, "xclk:", 5))
xclk = simple_strtoul(this_opt+5, NULL, 0);
+ else if (!strncmp(this_opt, "comp_sync:", 10))
+ comp_sync = simple_strtoul(this_opt+10, NULL, 0);
#ifdef CONFIG_PPC
else if (!strncmp(this_opt, "vmode:", 6)) {
unsigned int vmode =
@@ -3701,6 +3711,9 @@
MODULE_PARM_DESC(mclk, "int: override memory clock");
module_param(xclk, int, 0);
MODULE_PARM_DESC(xclk, "int: override accelerated engine clock");
+module_param(comp_sync, int, 0);
+MODULE_PARM_DESC(comp_sync,
+ "Set composite sync signal to low (0) or high (1)");
module_param(mode, charp, 0);
MODULE_PARM_DESC(mode, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
#ifdef CONFIG_MTRR
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 1/6] atyfb: Add boot/module option to override composite sync
2005-03-13 0:32 [PATCH 1/6] atyfb: Add boot/module option to override composite sync Antonino A. Daplas
@ 2005-03-13 9:04 ` Geert Uytterhoeven
2005-03-13 15:37 ` Alexander Kern
1 sibling, 0 replies; 3+ messages in thread
From: Geert Uytterhoeven @ 2005-03-13 9:04 UTC (permalink / raw)
To: Linux Fbdev development list; +Cc: Andrew Morton
On Sun, 13 Mar 2005, Antonino A. Daplas wrote:
> Some SPARC-based displays need the composite sync set to high.
> Since none of the entries in the default db has the composite
> sync set to high, using fb_find_mode() will produce a blank
> display.
>
> Add this new option to Documentation/fb/aty128fb.txt
Wrong documentation file!
> Signed-off-by: Antonino Daplas <adaplas@pol.net>
> ---
>
> Documentation/fb/aty128fb.txt | 1 +
aty128fb.txt is for ATI RAGE128 ...
> drivers/video/aty/atyfb_base.c | 13 +++++++++++++
... while atyfb_base.c is for ATI Mach64.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 1/6] atyfb: Add boot/module option to override composite sync
2005-03-13 0:32 [PATCH 1/6] atyfb: Add boot/module option to override composite sync Antonino A. Daplas
2005-03-13 9:04 ` Geert Uytterhoeven
@ 2005-03-13 15:37 ` Alexander Kern
1 sibling, 0 replies; 3+ messages in thread
From: Alexander Kern @ 2005-03-13 15:37 UTC (permalink / raw)
To: linux-fbdev-devel; +Cc: Antonino A. Daplas, Andrew Morton
Am Sonntag, 13. März 2005 01:32 schrieb Antonino A. Daplas:
> Some SPARC-based displays need the composite sync set to high.
> Since none of the entries in the default db has the composite
> sync set to high, using fb_find_mode() will produce a blank
> display.
>
> Add this new option to Documentation/fb/aty128fb.txt
>
> Signed-off-by: Antonino Daplas <adaplas@pol.net>
We do not have documentation file for aty.
In other Part:
Acked-by: Alexander Kern <alex.kern@gmx.de>
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2005-03-13 0:32 [PATCH 1/6] atyfb: Add boot/module option to override composite sync Antonino A. Daplas
2005-03-13 9:04 ` Geert Uytterhoeven
2005-03-13 15:37 ` Alexander Kern
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