Hi all, On Tue, 13 Oct 2009 11:49:48 +0200, Jean Delvare wrote: > I2C bus being setup too fast sounds more likely. It might be worth > adding an arbitrary delay after initialization, just to see if it > helps. Not sure where though, as I'm not familiar with the Powermac > initialization steps. Maybe right before i2c_add_adapter() in > i2c_powermac_probe?
Tim, can you please give a try to this patch? Obviously your machine will take 5 additional seconds to boot, and this isn't meant as a real fix, but if it helps, this will be an interesting hint for further debugging attempts. --- kernel32.orig/drivers/macintosh/therm_adt746x.c +++ kernel32/drivers/macintosh/therm_adt746x.c @@ -380,6 +380,7 @@ static int probe_thermostat(struct i2c_c if (thermostat) return 0; + msleep(5000); th = kzalloc(sizeof(struct thermostat), GFP_KERNEL); if (!th) return -ENOMEM; -- Jean Delvare _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev