1 From f57ff801665b868d8607c9e872466b54982564bc Mon Sep 17 00:00:00 2001
2 From: Matthew McClintock <mmcclint@codeaurora.org>
3 Date: Thu, 10 Mar 2016 16:48:27 -0600
4 Subject: [PATCH] spi: qup: don't re-read opflags to see if transaction is done
7 For reads, we will get another interrupt so we need to handle things
8 then. For writes, we can finish up now.
10 Change-Id: I4fa95ae7bb9d78f8ba54c613b981b37d4ea81d7e
11 Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
13 drivers/spi/spi-qup.c | 3 ++-
14 1 file changed, 2 insertions(+), 1 deletion(-)
16 diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
17 index 45e30c7..59bc37c 100644
18 --- a/drivers/spi/spi-qup.c
19 +++ b/drivers/spi/spi-qup.c
20 @@ -569,7 +569,8 @@ static irqreturn_t spi_qup_qup_irq(int irq, void *dev_id)
23 /* re-read opflags as flags may have changed due to actions above */
24 - opflags = readl_relaxed(controller->base + QUP_OPERATIONAL);
25 + if (opflags & QUP_OP_OUT_SERVICE_FLAG)
26 + opflags = readl_relaxed(controller->base + QUP_OPERATIONAL);
28 if ((controller->rx_bytes == xfer->len &&
29 (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error)