Hi, I got this from Intersil Support. It is a zl6100 chip Errata and can't be found in zl6100 later chip. So, this chip maybe can't work on PMbus framework. Good luck! Regards, Yuantian > -----Original Message----- > From: Guenter Roeck [mailto:guenter.roeck@xxxxxxxxxxxx] > Sent: 2011年7月29日 12:35 > To: Tang Yuantian-B29983 > Cc: lm-sensors@xxxxxxxxxxxxxx > Subject: Re: [PATCH] hwmon: (zl6100) Add new chip support > > On Wed, Jun 22, 2011 at 09:49:21AM +0800, b29983@xxxxxxxxxxxxx wrote: > > From: Tang Yuantian <B29983@xxxxxxxxxxxxx> > > > > The ZL6100 is a digital power controller with Power Monitoring > support. > > It provides an I2C/SMBus digital interface that enables the user to > > configure all aspects of the device operation as well as monitor > the > > input and output parameters. It accepts most standard PMBus > commands. > > Four parameters are output here which are Output Current, Output > Voltage, > > Local Temperature and Remote Temperature. > > > > This chip is currently used on some PowerPC platform. > > > > Signed-off-by: Tang Yuantian <b29983@xxxxxxxxxxxxx> > > Hi, > > I finally got an eval board for the ZL6100 and was able to do some > testing. > > The key problem with the chip and the generic PMBus driver is reflected > by the > msleep(2); > in your driver. Problem here is that this adds a delay of up to 20ms to > each and every I2C read command, which is really not desirable. I found > that udelay(500) does the trick as well, but is not much better. I'll > need to think about this a bit. > > Where do you have the 2ms value from ? I don't seem to be able to find it > in the datasheet. > Also, the ZL6105 does not seem to have the timing problem. > > Thanks, > Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
