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authormb <mb@3c298f89-4303-0410-b956-a3cf2f4a3e73>2009-02-15 15:50:26 +0000
committermb <mb@3c298f89-4303-0410-b956-a3cf2f4a3e73>2009-02-15 15:50:26 +0000
commit6d425a85a835a3e07430a0548f0238b0d43a24c4 (patch)
treed4e5f9fa0f4db0ac2715a23b71e9df08fc7ecf96 /target
parent7b5822f2aad81046e639fbf74d69ee1d9e03cda0 (diff)
Fix spi-gpio MISO handling.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14523 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target')
-rw-r--r--target/linux/generic-2.6/patches-2.6.28/920-03-spi-gpio-fix-miso-bit.patch22
1 files changed, 22 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.28/920-03-spi-gpio-fix-miso-bit.patch b/target/linux/generic-2.6/patches-2.6.28/920-03-spi-gpio-fix-miso-bit.patch
new file mode 100644
index 000000000..f4dd67efe
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.28/920-03-spi-gpio-fix-miso-bit.patch
@@ -0,0 +1,22 @@
+SPI-GPIO bitbang:
+
+gpio_get_value() returns 0 or nonzero, but getmiso() expects 0 or 1.
+Sanitize the value to a 0/1 boolean.
+
+--mb
+
+
+
+Index: linux-2.6.28.5/drivers/spi/spi_gpio.c
+===================================================================
+--- linux-2.6.28.5.orig/drivers/spi/spi_gpio.c 2009-02-15 16:21:11.000000000 +0100
++++ linux-2.6.28.5/drivers/spi/spi_gpio.c 2009-02-15 16:21:47.000000000 +0100
+@@ -114,7 +114,7 @@ static inline void setmosi(const struct
+
+ static inline int getmiso(const struct spi_device *spi)
+ {
+- return gpio_get_value(SPI_MISO_GPIO);
++ return !!gpio_get_value(SPI_MISO_GPIO);
+ }
+
+ #undef pdata