Unverified Commit d57e7960 authored Nov 15, 2018 by Mark Brown

spi: Fix core transfer waits after slave support

The refactoring done as part of adding the core support for handling
waiting for slave transfer dropped a conditional which meant that we
started waiting for completion of all transfers, not just those that the
controller asked for. This caused hangs and massive delays on platforms
that don't need the core delay. Re-add the delay to fix this.

Fixes: 810923f3 (spi: Deal with slaves that return from transfer_one() unfinished)
Reported-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 7986e227

drivers/spi/spi.c

+5 −3

Original line number	Diff line number	Diff line
		@@ -1114,9 +1114,11 @@ static int spi_transfer_one_message(struct spi_controller *ctlr,
		goto out;
		}

		if (ret > 0) {
		ret = spi_transfer_wait(ctlr, msg, xfer);
		if (ret < 0)
		msg->status = ret;
		}
		} else {
		if (xfer->len)
		dev_err(&msg->spi->dev,

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