1 files changed, 0 insertions, 62 deletions
diff --git a/target/linux/ipq806x/patches-4.4/714-spi-qup-properly-detect-extra-interrupts.patch b/target/linux/ipq806x/patches-4.4/714-spi-qup-properly-detect-extra-interrupts.patch
deleted file mode 100644
index 0039962481..0000000000
--- a/target/linux/ipq806x/patches-4.4/714-spi-qup-properly-detect-extra-interrupts.patch
+++ /dev/null
@@ -1,62 +0,0 @@
-From b69e5e855aaae2dd9f7fc6f4a40af8e6e0cf98ee Mon Sep 17 00:00:00 2001
-From: Matthew McClintock <mmcclint@codeaurora.org>
-Date: Thu, 10 Mar 2016 16:44:55 -0600
-Subject: [PATCH] spi: qup: properly detect extra interrupts
-
-It's possible for a SPI transaction to complete and get another
-interrupt and have it processed on the same spi_transfer before the
-transfer_one can set it to NULL.
-
-This masks unexpected interrupts, so let's set the spi_transfer to
-NULL in the interrupt once the transaction is done. So we can
-properly detect these bad interrupts and print warning messages.
-
-Change-Id: I0e70ed59fb50e5c48a72a38f74bd178b17c9f24d
-Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
----
- drivers/spi/spi-qup.c | 15 +++++++++------
- 1 file changed, 9 insertions(+), 6 deletions(-)
-
---- a/drivers/spi/spi-qup.c
-+++ b/drivers/spi/spi-qup.c
-@@ -509,6 +509,7 @@ static irqreturn_t spi_qup_qup_irq(int i
- 	u32 opflags, qup_err, spi_err;
- 	unsigned long flags;
- 	int error = 0;
-+	bool done = 0;
- 
- 	spin_lock_irqsave(&controller->lock, flags);
- 	xfer = controller->xfer;
-@@ -567,16 +568,19 @@ static irqreturn_t spi_qup_qup_irq(int i
- 			spi_qup_write(controller, xfer);
- 	}
- 
--	spin_lock_irqsave(&controller->lock, flags);
--	controller->error = error;
--	controller->xfer = xfer;
--	spin_unlock_irqrestore(&controller->lock, flags);
--
- 	/* re-read opflags as flags may have changed due to actions above */
- 	opflags = readl_relaxed(controller->base + QUP_OPERATIONAL);
- 
- 	if ((controller->rx_bytes == xfer->len &&
- 		(opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) ||  error)
-+		done = true;
-+
-+	spin_lock_irqsave(&controller->lock, flags);
-+	controller->error = error;
-+	controller->xfer = done ? NULL : xfer;
-+	spin_unlock_irqrestore(&controller->lock, flags);
-+
-+	if (done)
- 		complete(&controller->done);
- 
- 	return IRQ_HANDLED;
-@@ -769,7 +773,6 @@ static int spi_qup_transfer_one(struct s
- exit:
- 	spi_qup_set_state(controller, QUP_STATE_RESET);
- 	spin_lock_irqsave(&controller->lock, flags);
--	controller->xfer = NULL;
- 	if (!ret)
- 		ret = controller->error;
- 	spin_unlock_irqrestore(&controller->lock, flags);