Commit f961f2e6 authored Jul 23, 2018 by Chris Lew

rpmsg: glink: spi: Set tail pointer to 0 at end of FIFO



When wrapping around the FIFO, the remote expects the tail pointer to
be reset to 0 on the edge case where the tail equals the FIFO length.

Change-Id: If6d43ce481f28a46a344abe8eaf3ba476a3933ed
Signed-off-by: Chris Lew <clew@codeaurora.org>

parent 71c317cf

drivers/rpmsg/qcom_glink_spi.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -561,7 +561,7 @@ static void glink_spi_rx_advance(struct glink_spi *glink, size_t count)
		tail = pipe->local_addr;
		tail += count;

		if (tail > pipe->fifo_base + pipe->length)
		if (tail >= pipe->fifo_base + pipe->length)
		tail -= pipe->length;

		pipe->local_addr = tail;