Maxime Ripard wrote: > On Sat, Dec 27, 2014 at 09:37:20AM +0200, Siarhei Siamashka wrote: > > The MSI Primo81 is an A31s based tablet, with 1G RAM, 16G NAND, > > 1024x768 IPS LCD display, mono speaker, 0.3 MP front camera, 2.0 MP > > rear camera, 3500 mAh battery, gt911 touchscreen, mma8452 accelerometer > > and rtl8188etv usb wifi. Has "power", "volume+" and "volume-" buttons > > (both volume buttons are also connected to the UBOOT_SEL pin). The > > external connectors are represented by MicroSD slot, MiniHDMI, MicroUSB > > OTG and 3.5mm headphone jack. More details are available at > > http://linux-sunxi.org/MSI_Primo81 > > > > This initial dts file only provides support for mmc, wifi and uart > > (there is no external connector for uart though). Graphics can be used > > via simplefb. However, without usb otg, there are no reasonable means > > to handle user input yet. [...] > These two patches look very good overall. > > There's two things about the two of them though: > - We just switched to using the DT includes, please use them for > your GPIO flags and pinctrl drive strength and pull > configurations. > - We will switch soon to using the kind of syntax used for example > by TI in their DTSes (you can look at the beaglebone black for an > good example.), it would be great if you could use that in your > two DTSes, in order to avoid changing everything again in a near > future. As far as I can see nobody has taken this up until now, so I have slightly reworked Siarhei's original patch: - changed the numeric pinctrl and gpio values to their symbolic equivalents - changed the include syntax from /include/ to #include to make the dts build with current kernels. I have current u-boot master working on the tablet (booted from SD card), with console on the LCD, USB-OTG-support and a USB keyboard. A defconfig patch for OTG+keyboard support has been submitted to the u-boot list. Unfortunately I have not yet had much luck with the kernel. I try to get Hans de Goede's sunxi-wip branch (https://github.com/jwrdegoede/linux-sunxi/tree/sunxi-wip) to work on the Primo81, but I have not yet been able to get any kernel output on the LCD. Debugging this is slightly difficult as I currently lack an SD breakout board, so I have no way to get a serial console for now. Siarhei, could you perhaps give Hans' sunxi-wip branch a try on your Primo81? AFAIK you have a breakout board for it. Regards, Karsten -- Gem. Par. 28 Abs. 4 Bundesdatenschutzgesetz widerspreche ich der Nutzung sowie der Weitergabe meiner personenbezogenen Daten für Zwecke der Werbung sowie der Markt- oder Meinungsforschung. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
