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Fix spi-gpio MISO handling.

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14523 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
mb 2009-02-15 15:50:26 +00:00
parent 7b5822f2aa
commit 6d425a85a8
1 changed files with 22 additions and 0 deletions
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22
target/linux/generic-2.6/patches-2.6.28/920-03-spi-gpio-fix-miso-bit.patch Normal file
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@ -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