[3.13.y-ckt stable] Patch "spi: dw-mid: fix FIFO size" has been added to staging queue

Kamal Mostafa kamal at canonical.com
Thu Mar 19 20:21:22 UTC 2015

This is a note to let you know that I have just added a patch titled

    spi: dw-mid: fix FIFO size

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:


This patch is scheduled to be released in version 3.13.11-ckt17.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see



>From a691ec9445a0ce1769fbcff99c73f4033992dbd1 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
Date: Fri, 2 Jan 2015 17:48:51 +0200
Subject: spi: dw-mid: fix FIFO size

commit 67bf9cda4b498b8cea4a40be67a470afe57d2e88 upstream.

The FIFO size is 40 accordingly to the specifications, but this means 0x40,
i.e. 64 bytes. This patch fixes the typo and enables FIFO size autodetection
for Intel MID devices.

Fixes: 7063c0d942a1 (spi/dw_spi: add DMA support)
Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
 drivers/spi/spi-dw-mid.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index c8b5bbe..ca0e0c9 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -219,7 +219,6 @@ int dw_spi_mid_init(struct dw_spi *dws)

 	dws->num_cs = 16;
-	dws->fifo_len = 40;	/* FIFO has 40 words buffer */

 	dws->dma_priv = kzalloc(sizeof(struct mid_dma), GFP_KERNEL);

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