WL_SPARE_REG
ret = wl12xx_top_reg_read(wl, WL_SPARE_REG, &spare_reg);
ret = wl12xx_top_reg_write(wl, WL_SPARE_REG, spare_reg);
ret = wl12xx_top_reg_read(wl, WL_SPARE_REG, &spare_reg);
ret = wl12xx_top_reg_write(wl, WL_SPARE_REG, spare_reg);