Unverified Commit f971a207 authored by Vladimir Oltean's avatar Vladimir Oltean Committed by Mark Brown
Browse files

spi: Catch improper use of PTP system timestamping API 



We can catch whether the SPI controller has declared it can take care of
software timestamping transfers, but didn't. So do it.

Signed-off-by: default avatarVladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20191227012444.1204-1-olteanv@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f03ee204

drivers/spi/spi.c

+7 −0
Original line number Diff line number Diff line
@@ -1680,6 +1680,13 @@ void spi_finalize_current_message(struct spi_controller *ctlr) 
		}

	}



	if (unlikely(ctlr->ptp_sts_supported)) {

		list_for_each_entry(xfer, &mesg->transfers, transfer_list) {

			WARN_ON_ONCE(xfer->ptp_sts && !xfer->timestamped_pre);

			WARN_ON_ONCE(xfer->ptp_sts && !xfer->timestamped_post);

		}

	}



	spi_unmap_msg(ctlr, mesg);



	if (ctlr->cur_msg_prepared && ctlr->unprepare_message) {