mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 13:58:27 +02:00
4352c2858f
* Accept transfers without bits_per_word set. * Work around the inability of the hardware of keeping CS asserted. Signed-off-by: Jonas Gorski <jogo@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34320 3c298f89-4303-0410-b956-a3cf2f4a3e73
30 lines
1007 B
Diff
30 lines
1007 B
Diff
From fbef4dff80be6254e36ab5b9c655d248a3991ded Mon Sep 17 00:00:00 2001
|
|
From: Jonas Gorski <jonas.gorski@gmail.com>
|
|
Date: Sat, 24 Nov 2012 12:08:22 +0100
|
|
Subject: [PATCH 3.7] spi/bcm63xx: fix transfer bits_per_words check
|
|
|
|
Transfers often do not have bits_per_words set, so use the spi device's
|
|
bits_per_words in this case.
|
|
|
|
This fixes the driver rejecting valid transfers e.g. generated by
|
|
spi_write() or spi_read().
|
|
|
|
Cc: stable@vger.kernel.org
|
|
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
|
---
|
|
drivers/spi/spi-bcm63xx.c | 3 ++-
|
|
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
|
--- a/drivers/spi/spi-bcm63xx.c
|
|
+++ b/drivers/spi/spi-bcm63xx.c
|
|
@@ -103,7 +103,8 @@ static int bcm63xx_spi_check_transfer(st
|
|
{
|
|
u8 bits_per_word;
|
|
|
|
- bits_per_word = (t) ? t->bits_per_word : spi->bits_per_word;
|
|
+ bits_per_word = (t && t->bits_per_word) ?
|
|
+ t->bits_per_word : spi->bits_per_word;
|
|
if (bits_per_word != 8) {
|
|
dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n",
|
|
__func__, bits_per_word);
|