On Wed, Feb 21, 2018 at 11:01 AM, David Lechner <da...@lechnology.com> wrote: > Are you sure your phandles are correct here? They don't match the comments. > Should it be <&gpio1 16 0> instead? > >> + reset-gpios = <&gpio1 16 0>; /* >> reset:60 P9.12 GPIO1_28 */ > > > And then <&gpio1 28 0> here?
Here is the full BB-SPIDEV1-00A0.dts: https://gist.github.com/pdp7/aee5664598059c9b9a9020f107957f80 I have P9.12 connected to LCD reset pin. I have P9.15 connected to LCD dc pin. For fbtft driver, this translated to GPIO_60 for reset and GPIO_48 for dc. This is based on this pinout diagram: https://elinux.org/File:Cape_expansion_headers.PNG For this dts file, I was trying to figure out what appropriate gpio phandle. I looked at this table for the P9 header: https://elinux.org/File:H9Pinout.PNG I believe that gpio1[16] corresponds to P9.15 which is LCD dc pin, and gpio1[28] corresponds to P9.12 which is LCD reset pin. My understanding of those mappings may be incorrect, so I'd appreciate any additional feedback. Thanks, Drew -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAPgEAj7zvg2bfXOYjydR5fYaYfcEOTtU3P4zpEWWtwjFS1XsHA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
