SC16IS7XX_MAX_DEVS
ret = ida_alloc_max(&sc16is7xx_lines, SC16IS7XX_MAX_DEVS - 1, GFP_KERNEL);
s->p[i].port.line = SC16IS7XX_MAX_DEVS;
if (s->p[i].port.line < SC16IS7XX_MAX_DEVS)
.nr = SC16IS7XX_MAX_DEVS,