Searched hist:"446411 e18b2cb17d153e45f634a3c9a79ada3ac2" (Results 1 – 1 of 1) sorted by relevance
| /linux/include/linux/spi/ |
| H A D | spi.h | diff 446411e18b2cb17d153e45f634a3c9a79ada3ac2 Wed Feb 13 14:20:25 CET 2013 Andreas Larsson <andreas@gaisler.com> spi: Initialize cs_gpio and cs_gpios with -ENOENT
The return value from of_get_named_gpio is -ENOENT when the given index
matches a hole in the "cs-gpios" property phandle list. However, the
default value of cs_gpio in struct spi_device and entries of cs_gpios in
struct spi_master is -EINVAL, which is documented to indicate that a
GPIO line should not be used for the given spi_device.
This sets the default value of cs_gpio in struct spi_device and entries
of cs_gpios in struct spi_master to -ENOENT. Thus, -ENOENT is the only
value used to indicate that no GPIO line should be used.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
|