On Tuesday 20 November 2012 13:08:20 Stephen Warren wrote: > On 11/19/2012 06:47 PM, Alex Courbot wrote: > > On Tuesday 20 November 2012 09:37:41 Mark Zhang wrote: > >> Great. So this means I2C2 is used for LCD and HDMI both. While HDMI is > >> not plugged, the EDID of LCD will be checked out, right? > > > > Ahhh. So that's why the LCD DDC was not working during my previous tests - > > I had HDMI nodes in my DT as well as the HDMI cable plugged! Indeed, > > things seem to work as you described. I assumed the i2cmux node would set > > the right pin configuration according to whether we want to read the LCD > > or HDMI DDC, but apparently this is not totally working yet. Glad we > > figured it out. Adding the HDMI nodes to Ventana will probably require to > > fix this (along with other things, probably) first. > > That is kinda the whole point of the I2C mux... If it really isn't > working, can you please investigate why. i2cdump or i2cget would be > useful tools for testing this. Keeping that on my TODO list. By the meantime, better not to add HDMI nodes on Ventana. LCD should work ok with this patch though. Alex. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
