Hi Guenter, Adding Wei Ni to Cc, as he provided the commit which causes problem.
On Sun, 26 Jan 2014 11:28:16 -0800, Guenter Roeck wrote: > Hi, > > the lm90 driver is no longer working on PCs with the 3.13 kernel ... or at > least not without > special configuration. > > This is what I get if I try to instantiate a device on it (max6695): > > i2c 1-0018: Driver lm90 requests probe deferral > i2c i2c-1: new_device: Instantiated device max6695 at 0x18 > > The regulator core always returns -EPROBE_DEFER if the platform does not > support devicetree > and if the regulator it is looking for does not exist. Since the driver now > requires a mandatory > regulator (commit 3e0f964f2ad - hwmon: (lm90) Add power control), and the > regulator it requests > does not exist on a PC, the result is not really surprising. I thought the > regulator core would > realize that it has to return a dummy regulator, but apparently that is not > the case, or I don't > know how to configure it. > > Any idea what I might need to do to get it working ? Me, I really don't know. I seem to remember I tested Wei's patch set on an emulated ADM1032 chip and it was working fine. So maybe it depends on the kernel configuration, or something changed on the regulator side meanwhile. -- Jean Delvare -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
