[RESENT] [PATCH] pm2fb: memclock setting corrections

[RESENT] [PATCH] pm2fb: memclock setting corrections

[Krzysztof Helt]

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From: Krzysztof Helt <krzysztof.h1@wp.pl>

This patch disables a memory clock setting if a board has been
initialized by BIOS. This allows using the memory clock set by
manufacturer of the board.
This patch also sets default clock for 3dlabs Permedia 2V
reference board's clock to 75MHz (BIOS setting for EONtronic
Permedia 2Vboard), because the default 83MHz can be too high.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
---
This patch requires the patch
pm2fb-3dlabs-permedia-2v-reference-board-added.patch
from mm tree to be applied first.


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diff -urp linux-2.6.21.orig/drivers/video/pm2fb.c linux-2.6.21.old/drivers/video/pm2fb.c
--- linux-2.6.21.orig/drivers/video/pm2fb.c	2007-04-26 22:59:21.697777668 +0200
+++ linux-2.6.21.old/drivers/video/pm2fb.c	2007-04-22 19:42:29.715214265 +0200
@@ -1139,10 +1144,10 @@ static int __devinit pm2fb_probe(struct 
 		default_par->mem_control, default_par->boot_address,
 		default_par->mem_config);
 
-	default_par->memclock = CVPPC_MEMCLOCK;
 	if(default_par->mem_control == 0 &&
 		default_par->boot_address == 0x31 &&
 		default_par->mem_config == 0x259fffff) {
+		default_par->memclock = CVPPC_MEMCLOCK;
 		default_par->mem_control=0;
 		default_par->boot_address=0x20;
 		default_par->mem_config=0xe6002021;
@@ -1162,7 +1167,7 @@ static int __devinit pm2fb_probe(struct 
 			DPRINTK("We have not been initialized by VGA BIOS "
 				"and are running on an 3dlabs reference board\n");
 			DPRINTK("Initializing card timings manually...\n");
-			default_par->memclock=70000;
+			default_par->memclock=74894;
 		}
 	}
 

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