MAX310X_UART_NRMAX
line = find_first_zero_bit(max310x_lines, MAX310X_UART_NRMAX);
if (line == MAX310X_UART_NRMAX) {
bitmap_zero(max310x_lines, MAX310X_UART_NRMAX);
.nr = MAX310X_UART_NRMAX,
static DECLARE_BITMAP(max310x_lines, MAX310X_UART_NRMAX);