Hi Stephen, On 1 February 2016 at 17:00, Stephen Warren <swar...@wwwdotorg.org> wrote: > On 01/30/2016 04:37 PM, Simon Glass wrote: >> >> This series moves these two drivers over to use driver model for video. >> >> This involves the following steps: >> - Sync up some device tree files with Linux >> - Implement a proper PWM driver >> - Clean up and unify the driver code >> - Modify the existing drivers to work with driver model >> >> The tegra20 display driver uses device tree bindings invented in 2011 >> before >> Linux had this or anyone was able to agree a standard. It seems possible >> to >> move it to the new bindings (like tegra124) except for the issue of time >> delays between stages. It isn't clear how this should work, and Linux >> implements this by including all LCD definitions in the kernel source >> code, >> and not using any delays. This causes strange display artifacts on the >> display when starting up, but perhaps is harmless to the display. Future >> work will sync up the device tree more for seaboard, and thus tidy this up >> for nvidia boards. >> >> A bug in the keyboard driver is also fixed by this series. The series is >> tested on seaboard and nyan-big, the two boards I have which support a >> display. >> >> This series is available at u-boot-dm/tegra-working. > > > This changes the name of the output device from "lcd" to "vidconsole". > Anyone who doesn't reset their environment to default when switching to this > new U-Boot will lose their display output because of this. Is there any way > to maintain compatibility?
I could not think of one other than an egregious hack. It will certainly bite someone. Perhaps a hack that detects 'lcd' in the stdout env variable and prints a warning would be useful? > > Aside from that, I don't see any issues on Springbank (Seaboard), Harmony, > Ventana, Paz00, or p2371-2180, so the series, > Tested-by: Stephen Warren <swar...@nvidia.com> Thanks very much for testing all those,. Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot