2016-08-11 14:34:08 +00:00
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From f57ff801665b868d8607c9e872466b54982564bc Mon Sep 17 00:00:00 2001
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From: Matthew McClintock <mmcclint@codeaurora.org>
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Date: Thu, 10 Mar 2016 16:48:27 -0600
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Subject: [PATCH] spi: qup: don't re-read opflags to see if transaction is done
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for reads
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For reads, we will get another interrupt so we need to handle things
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then. For writes, we can finish up now.
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Change-Id: I4fa95ae7bb9d78f8ba54c613b981b37d4ea81d7e
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Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
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---
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drivers/spi/spi-qup.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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--- a/drivers/spi/spi-qup.c
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+++ b/drivers/spi/spi-qup.c
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2016-08-22 17:05:45 +00:00
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@@ -569,7 +569,8 @@ static irqreturn_t spi_qup_qup_irq(int i
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2016-08-11 14:34:08 +00:00
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}
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2016-08-22 17:05:45 +00:00
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2016-08-11 14:34:08 +00:00
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/* re-read opflags as flags may have changed due to actions above */
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- opflags = readl_relaxed(controller->base + QUP_OPERATIONAL);
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+ if (opflags & QUP_OP_OUT_SERVICE_FLAG)
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+ opflags = readl_relaxed(controller->base + QUP_OPERATIONAL);
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2016-08-22 17:05:45 +00:00
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2016-08-11 14:34:08 +00:00
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if ((controller->rx_bytes == xfer->len &&
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(opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error)
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