context_update_write
.context_update_write = dw_pcie_ptm_context_update_write,
if (!ptm_debugfs->ops->context_update_write)
ret = ptm_debugfs->ops->context_update_write(ptm_debugfs->pdata, mode);
.write = context_update_write,
int (*context_update_write)(void *drvdata, u8 mode);