bcm63xx: add 3.9 support

[openwrt/svn-archive/archive.git] / target / linux / brcm63xx / patches-3.9 / 009-spi-bcm63xx-check-spi-bits_per_word-in-spi_setup.patch

diff --git a/target/linux/brcm63xx/patches-3.9/009-spi-bcm63xx-check-spi-bits_per_word-in-spi_setup.patch b/target/linux/brcm63xx/patches-3.9/009-spi-bcm63xx-check-spi-bits_per_word-in-spi_setup.patch
new file mode 100644 (file)
index 0000000..49a7ac2
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.9/009-spi-bcm63xx-check-spi-bits_per_word-in-spi_setup.patch
@@ -0,0 +1,29 @@
+From 13a364be644ed9b4666d452756556bb98afdcc56 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Mon, 11 Mar 2013 13:48:27 +0100
+Subject: [PATCH 07/12] spi/bcm63xx: check spi bits_per_word in spi_setup
+
+Instead of fixing up the bits_per_word (which the spi subsystem already
+does for us), check it for supported values.
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ drivers/spi/spi-bcm63xx.c |    7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+--- a/drivers/spi/spi-bcm63xx.c
++++ b/drivers/spi/spi-bcm63xx.c
+@@ -151,8 +151,11 @@ static void bcm63xx_spi_setup_transfer(s
+ 
+ static int bcm63xx_spi_setup(struct spi_device *spi)
+ {
+-      if (!spi->bits_per_word)
+-              spi->bits_per_word = 8;
++      if (spi->bits_per_word != 8) {
++              dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n",
++                      __func__, spi->bits_per_word);
++              return -EINVAL;
++      }
+ 
+       return 0;
+ }