[PATCH] Radeon 4/11 : Fix glitch in display bandwidth calculation

[Benjamin Herrenschmidt]

The display bandwidth calculation code has a small bug when looking at
the memory controller setup on r300 chips. Hui from ATI confirmed that
this was the right fix.

Index: xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c
===================================================================
--- xc.orig/programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c	2004-12-05 19:41:48.182971616 +1100
+++ xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c	2004-12-05 19:41:53.022235936 +1100
@@ -6220,7 +6220,7 @@
 	*/
 	temp = INREG(RADEON_MEM_CNTL);
 	data = (R300_MEM_NUM_CHANNELS_MASK & temp);
-	if (data == 2) {
+	if (data == 1) {
 	    if (R300_MEM_USE_CD_CH_ONLY & temp) {
 		temp  = INREG(R300_MC_IND_INDEX);
 		temp &= ~R300_MC_IND_ADDR_MASK;