Commit 290eac04b9 ("drivers/linuxgpiod: Migrate to adapter gpio
commands") introduced an incorrect check to determine if the
library libgpiod declares the line request flags:
GPIOD_LINE_REQUEST_FLAG_BIAS_DISABLE
GPIOD_LINE_REQUEST_FLAG_BIAS_PULL_UP
GPIOD_LINE_REQUEST_FLAG_BIAS_PULL_DOWN
The names above are declared by the library inside an enum, thus
cannot be used by the C preprocessor in a #ifdef.
Determine in configure if the version of libgpiod provides the
line request flags for "bias" and define a C macro.
Use the new macro in the driver code.
Change-Id: Iaa452230f4753fce4c6e9daa254299cedb7cab7f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: 290eac04b9 ("drivers/linuxgpiod: Migrate to adapter gpio commands")
Reviewed-on: https://review.openocd.org/c/openocd/+/8186
Tested-by: jenkins
Reviewed-by: Michael Heimpold <michaheimpold@gmail.com>
e035756b22