Hi Todd, I got custum hardware based on OMAP-L138 EVM, with OMAPL138 and TPS65070. It's ok you answered my question why the INT pins is not used.
I did more tests and you are right, the touchscreen driver is not locking out all other access to the I2C bus, that was a mistake from my side. So everything seems to be ok even if there's a lot a communication on the bus. Thank you. Nicolas On Fri, Jun 4, 2010 at 4:33 PM, Todd Fischer <[email protected]>wrote: > Hi Nicolas, > > > On Fri, 2010-06-04 at 16:15 -0400, Nicolas Luna wrote: > > Hi, > > > > I downloaded and tried the kernel v2.6.34 from * > linux/kernel/git/khilman/linux-davinci.git**/ *to get the touchscreen > patch. It is working well, but I wonder if it is normal that the touchscreen > constantly use the I2C bus, even if I don't touch to the touchscreen. > > No, that is not normal. The hardware I was using doesn't have the TPS6507x > interrupt pin connected, so I couldn't test that code path (and thus didn't > attempt to include it). What hardware are you using? > > > Because of that, it is not possible to have an other device on the bus. Is > there any specific reason why the driver do not use the INT pin from the > TPS6507x to free a little bit the I2C bus. > > > Also, I didn't think the driver was locking out all other access to the I2C > bus. I will enhance my test suite to check for that case. > > Todd > > Thanks > > > > Nicolas > > > > > _______________________________________________ > Davinci-linux-open-source mailing > [email protected]http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source > >
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