hanni76 Posted October 14, 2017 Posted October 14, 2017 Hello, guys, I am building mainline "next" for BananaPi M2 with my custom Waveshare 35a dt overlay (source attached) created from the one for RaspberryPi3. The display shows a broken picture. DMESG periodically shows SPI transfer error -110. Any ideas what is going on there ? I am using a similar DTS on OrangePi PC and it works perfectly. Thanks in advance for any help or idea. DMESG output ---------------------------------------------- [ 8.027465] fbtft: module is from the staging directory, the quality is unknown, you have been warned. [ 8.030428] fb_ili9486: module is from the staging directory, the quality is unknown, you have been warned. [ 8.031067] fbtft_of_value: regwidth = 16 [ 8.031073] fbtft_of_value: buswidth = 8 [ 8.031079] fbtft_of_value: debug = 0 [ 8.031083] fbtft_of_value: rotate = 90 [ 8.031087] fbtft_of_value: fps = 30 [ 8.031091] fbtft_of_value: txbuflen = 65536 ------------------------------------------------------ [ 133.380029] spi_master spi32766: spi32766.0: timeout transferring 15360 bytes@16000000Hz for 110(100)ms [ 133.380037] fb_ili9486 spi32766.0: SPI transfer failed: -110 [ 133.380047] spi_master spi32766: failed to transfer one message from queue [ 133.380054] fb_ili9486 spi32766.0: fbtft_update_display: write_vmem failed to update display buffer sun6i-a31-waveshare35a.dts sun8i-h3-waveshare35a.dts
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