Thanks for the info, Maxime. Will try out the WiFi driver. I've seen a GT9xx driver mentioned in the wiki (http://linux-sunxi.org/Touchscreen#Goodix). Maybe that could be hacked into working with the GT818. Or the GT818 driver from sunxi-3.4...
About the USB-Problem: I have tried two OTG cables which both work on a different tablet, so I'm pretty sure they work. I have uploaded a paste of kern.log here: https://pastebin.com/CV5cQZJA Maybe this will shed some more light on what's wrong. I could also deliver more info or try patches if necessary... Best Regards, Bim Am Freitag, 12. Mai 2017 11:16:54 UTC+2 schrieb Maxime Ripard: > > Hi, > > On Thu, May 11, 2017 at 02:45:11PM -0700, Bim Overbohm wrote: > > Hi All, > > > > I had a similar problem running a mainline 4.11 kernel on an A33 tablet > > (marked "Q8-2.4G 20140918". It came from a company called Trimeo and is > > simply called 7". It contains an APX223 power controller, RTL8189ETV > WiFi > > controller, 2x Nanya NT5CB128M15FP-DY DRAM chips (2x256MB), a Hynix > > H27UCG8T2BTR-BC NAND-flash chip and a Goodix GT818 touch controller. > > Display resolution is 1024x600). The self-compiled u-boot dtb would > > initialize the USB, but the kernel dtb would not work. > > U-Boot doesn't use the DT for this USB setup. > > > The kernel messages were something along the lines of "[ 9.366994] > > sun4i-usb-phy 1c19400.phy: could not find pctldev for node > > /soc@01c00000/pinctrl@01c20800/usb0_id_detect_pin@0, deferring > > probe". > > That's not likely to be your issue. The probe should be deferred, and > reattempted later. > > > I found no way to activate the pinctrl devices, so I fixed this by > > decompiling the dts, removing all the USB id detect pin and vbus > > settings and recompiling the dts (diff at end of message). The > > device boots into LXDE now and I can use an USB keyboard and > > mouse. I still have no WiFi though... > > > > Pastebin of unpatched dts file: https://pastebin.com/kL6WELuC > > > > A couple of questions: > > > > - Is there a proper way to make the pinctrls and OTG dual mode work > > on the device?! I suspect they are needed to activate WiFi too... > > As I said, that's probably not your issue. Are you sure of your > micro-USB cable? Is it setting the ID pin to the ground as it's > supposed to? > > > - Is this a bug I should report for sunxi-next? > > sunxi-next is just a merge of various upstream branches. It doesn't > make sense to report bugs there. You've found the right place already. > > > - Is there a driver for the GT818 in the mainline kernel or a way to > > make that device work? > > It doesn't look like there is. > > > - Is there a driver for the RTL8189ETV in the mainline kernel or a way > to > > make that device work? > > https://linux-sunxi.org/Wifi#RTL8189ES_.2F_RTL8189ETV > > Maxime > > -- > Maxime Ripard, Free Electrons > Embedded Linux and Kernel engineering > http://free-electrons.com > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
