read_csr_f_stat
u32 (*read_csr_f_stat)(void __iomem *csr_base_addr, u32 bank);
ret = check_stat(ops->read_csr_f_stat, state->ringfstat, "ringfstat",
state->ringfstat = ops->read_csr_f_stat(base, bank);
csr_ops->read_csr_f_stat = read_csr_f_stat;