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- From 8e830bd17e945e74964a5b61353d74e34c0791cd Mon Sep 17 00:00:00 2001
- From: Andy Gross <andy.gross@linaro.org>
- Date: Fri, 29 Jan 2016 22:06:50 -0600
- Subject: [PATCH] spi: qup: Fix transaction done signaling
- Wait to signal done until we get all of the interrupts we are expecting
- to get for a transaction. If we don't wait for the input done flag, we
- can be inbetween transactions when the done flag comes in and this can
- mess up the next transaction.
- Change-Id: I08d78376e71590663158d6434a3fb7c0623264c9
- CC: Grant Grundler <grundler@chromium.org>
- CC: Sarthak Kukreti <skukreti@codeaurora.org>
- Signed-off-by: Andy Gross <andy.gross@linaro.org>
- ---
- drivers/spi/spi-qup.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
- --- a/drivers/spi/spi-qup.c
- +++ b/drivers/spi/spi-qup.c
- @@ -447,7 +447,8 @@ static irqreturn_t spi_qup_qup_irq(int i
- controller->xfer = xfer;
- spin_unlock_irqrestore(&controller->lock, flags);
-
- - if (controller->rx_bytes == xfer->len || error)
- + if ((controller->rx_bytes == xfer->len &&
- + (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error)
- complete(&controller->done);
-
- return IRQ_HANDLED;
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