Patch "spi: sirf: fix word width configuration" has been added to the 3.17-stable tree

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This is a note to let you know that I've just added the patch titled

    spi: sirf: fix word width configuration

to the 3.17-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-sirf-fix-word-width-configuration.patch
and it can be found in the queue-3.17 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 9c4b19a07dddda3ba35a2eb9b4134d485908e2f5 Mon Sep 17 00:00:00 2001
From: Qipan Li <Qipan.Li@xxxxxxx>
Date: Mon, 17 Nov 2014 23:17:02 +0800
Subject: spi: sirf: fix word width configuration

From: Qipan Li <Qipan.Li@xxxxxxx>

commit 9c4b19a07dddda3ba35a2eb9b4134d485908e2f5 upstream.

commit 8c328a262f ("spi: sirf: Avoid duplicate code in various
bits_per_word cases") is wrong in setting data width register of
fifo is not right, it should use sspi->word_width >> 1 to set
related bits. According to hardware spec, the mapping between
register value and data width:
0 - byte
1 - WORD
2 - DWORD

Fixes: 8c328a262f ("spi: sirf: Avoid duplicate code in various bits_per_word cases") is wrong in setting data width register of
Signed-off-by: Qipan Li <Qipan.Li@xxxxxxx>
Signed-off-by: Barry Song <Baohua.Song@xxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/spi/spi-sirf.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -565,9 +565,9 @@ spi_sirfsoc_setup_transfer(struct spi_de
 
 	sspi->word_width = DIV_ROUND_UP(bits_per_word, 8);
 	txfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) |
-					   sspi->word_width;
+					   (sspi->word_width >> 1);
 	rxfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) |
-					   sspi->word_width;
+					   (sspi->word_width >> 1);
 
 	if (!(spi->mode & SPI_CS_HIGH))
 		regval |= SIRFSOC_SPI_CS_IDLE_STAT;


Patches currently in stable-queue which might be from Qipan.Li@xxxxxxx are

queue-3.17/spi-sirf-fix-word-width-configuration.patch
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