[PATCH 2.6.22] Allow PMU LED control on PowerMac 7,2 and 7,3

[Tony Vroon]

This allows the PMU LED on both a PowerMac 7,2 (Dual G5 2.0GHz, June 2003) 
and a PowerMac 7,3 (Dual G5 2.0GHz, June 2004) to be controlled.
The physical LED is never off, unlike an iBook/PowerBook LED.
It is rather dim ("off") or very bright ("on").
A patch to add a LED trigger to the libata core has been sent to Jeff Garzik.

Signed-off-by: Tony Vroon <chainsaw at gentoo.org>

--- linux-2.6/drivers/macintosh/via-pmu-led.c.orig	2007-03-09 22:38:31.000000000 +0000
+++ linux-2.6/drivers/macintosh/via-pmu-led.c	2007-03-09 23:01:21.000000000 +0000
@@ -124,7 +124,8 @@
 	if (model == NULL)
 		return -ENODEV;
 	if (strncmp(model, "PowerBook", strlen("PowerBook")) != 0 &&
-	    strncmp(model, "iBook", strlen("iBook")) != 0) {
+	    strncmp(model, "iBook", strlen("iBook")) != 0 &&
+	    strncmp(model, "PowerMac7,2", strlen("PowerMac7,2")) != 0) {
+	    strncmp(model, "PowerMac7,3", strlen("PowerMac7,3")) != 0) {
 		of_node_put(dt);
 		/* ignore */
 		return -ENODEV;