fbtft_property_value
pdata->display.width = fbtft_property_value(dev, "width");
pdata->display.height = fbtft_property_value(dev, "height");
pdata->display.regwidth = fbtft_property_value(dev, "regwidth");
pdata->display.buswidth = fbtft_property_value(dev, "buswidth");
pdata->display.backlight = fbtft_property_value(dev, "backlight");
pdata->display.bpp = fbtft_property_value(dev, "bpp");
pdata->display.debug = fbtft_property_value(dev, "debug");
pdata->rotate = fbtft_property_value(dev, "rotate");
pdata->fps = fbtft_property_value(dev, "fps");
pdata->txbuflen = fbtft_property_value(dev, "txbuflen");
pdata->startbyte = fbtft_property_value(dev, "startbyte");