BBP4_BANDWIDTH
rt2x00_set_field8(&bbp_val, BBP4_BANDWIDTH, 2 * is_ht40);
rt2x00_set_field8(&bbp_val, BBP4_BANDWIDTH,
rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2 * conf_is_ht40(conf));
rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2 * bw40);
rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 0);