svn commit: r208426 - stable/8/sys/powerpc/cpufreq

[Nathan Whitehorn]

Author: nwhitehorn
Date: Sun May 23 02:16:29 2010
New Revision: 208426
URL: http://svn.freebsd.org/changeset/base/208426

Log:
  MFC r208150:
  
  On SMP G5 systems, sometimes the power-mode-data property is only found
  on CPU 0, so look there if it is not otherwise available.

Modified:
  stable/8/sys/powerpc/cpufreq/pcr.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/xen/xenpci/   (props changed)
  stable/8/sys/geom/sched/   (props changed)

Modified: stable/8/sys/powerpc/cpufreq/pcr.c
==============================================================================
--- stable/8/sys/powerpc/cpufreq/pcr.c	Sun May 23 02:15:31 2010	(r208425)
+++ stable/8/sys/powerpc/cpufreq/pcr.c	Sun May 23 02:16:29 2010	(r208426)
@@ -202,6 +202,11 @@ pcr_attach(device_t dev)
 		return (ENXIO);
 	}
 
+	if (OF_getproplen(cpu, "power-mode-data") <= 0) {
+		/* Use the first CPU's node */
+		cpu = OF_child(OF_parent(cpu));
+	}
+
 	/*
 	 * Collect the PCR values for each mode from the device tree.
 	 * These include bus timing information, and so cannot be