This is a note to let you know that I've just added the patch titled
spi/spi-xilinx: Fix mixed poll/irq mode
to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
spi-spi-xilinx-fix-mixed-poll-irq-mode.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 16ea9b8ac45bf11d48af6013283e141e8ed86348 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda Delgado <[email protected]>
Date: Wed, 12 Aug 2015 18:04:04 +0200
Subject: spi/spi-xilinx: Fix mixed poll/irq mode
From: Ricardo Ribalda Delgado <[email protected]>
commit 16ea9b8ac45bf11d48af6013283e141e8ed86348 upstream.
Once the module process a transfer in irq mode, the next poll transfer
will not work because the transmitter is left in inhibited state.
Fixes: 22417352f6b7f623 (Use polling mode on small transfers)
Reported-by: Edward Kigwana <[email protected]>
Signed-off-by: Ricardo Ribalda Delgado <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/spi/spi-xilinx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -306,8 +306,10 @@ static int xilinx_spi_txrx_bufs(struct s
remaining_words -= n_words;
}
- if (use_irq)
+ if (use_irq) {
xspi->write_fn(0, xspi->regs + XIPIF_V123B_DGIER_OFFSET);
+ xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET);
+ }
return t->len;
}
Patches currently in stable-queue which might be from [email protected]
are
queue-4.1/spi-spi-xilinx-fix-mixed-poll-irq-mode.patch
queue-4.1/spi-spi-xilinx-fix-spurious-irq-ack-on-irq-mode.patch
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