diff options
| author |   Michael Hennerich <michael.hennerich@analog.com> | 2010-10-22 02:01:47 -0400 |
|---|---|---|
| committer |   Grant Likely <grant.likely@secretlab.ca> | 2010-10-22 01:26:46 -0600 |
| commit | 73e1ac16258fe7e55cce4691e32c0b44d4579e08 (patch) | |
| tree | aaa8fe91c600c5c07fdc105ba65dee42192dc4cf /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | spi/bfin_spi: handle error/status changes after data interrupts (diff) | |
| download | linux-rng-73e1ac16258fe7e55cce4691e32c0b44d4579e08.tar.xz linux-rng-73e1ac16258fe7e55cce4691e32c0b44d4579e08.zip | |
spi/bfin_spi: only request GPIO on first load
The gpiolib code does not allow people to do gpio_request() on a GPIO
once it has already been requested. So make sure we only request the
pin on the first setup of a SPI device. Otherwise, if you attempts to
reconfigure a SPI device on the fly (like change bit sizes), the setup
function incorrectly fails.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions