cdnsp_find_next_ext_cap
offset = cdnsp_find_next_ext_cap(base, offset, D_XEC_PRE_REGS_CAP);
reg += cdnsp_find_next_ext_cap(reg, 0, XBUF_CAP_ID);
offset = cdnsp_find_next_ext_cap(base, offset, D_XEC_PRE_REGS_CAP);
reg += cdnsp_find_next_ext_cap(reg, 0, RTL_REV_CAP);
offset = cdnsp_find_next_ext_cap(base, offset, D_XEC_PRE_REGS_CAP);
int cdnsp_find_next_ext_cap(void __iomem *base, u32 start, int id);
offset = cdnsp_find_next_ext_cap(base, 0,
offset = cdnsp_find_next_ext_cap(base, 0, D_XEC_CFG_3XPORT_CAP);
offset = cdnsp_find_next_ext_cap(base, offset,