diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2019-06-09 02:11:38 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-06-10 17:01:54 +0300 |
| commit | 7fae8a9ced742f364604a88a53084f471cc9c6e5 (patch) | |
| tree | fa7be419e46f1398ca873bf0aece9fcb04592eec /include/linux/fmc.h | |
| parent | fc8938d445d5ca861c5a76098512ab6dd67f6d80 (diff) | |
| download | linux-7fae8a9ced742f364604a88a53084f471cc9c6e5.tar.xz | |
fmc: Decouple from Linux GPIO subsystem
FMC has its own GPIO handling, the inclusion of <linux/gpio.h>
is only to reuse some flags that we can just as well provide
using local defines.
Cc: Federico Vaga <federico.vaga@cern.ch>
Cc: Pat Riehecky <riehecky@fnal.gov>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/fmc.h')
| -rw-r--r-- | include/linux/fmc.h | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/include/linux/fmc.h b/include/linux/fmc.h index b355f3806f3f..8661a46a676f 100644 --- a/include/linux/fmc.h +++ b/include/linux/fmc.h @@ -100,7 +100,7 @@ struct fmc_gpio { char *carrier_name; /* name or NULL for virtual pins */ int gpio; int _gpio; /* internal use by the carrier */ - int mode; /* GPIOF_DIR_OUT etc, from <linux/gpio.h> */ + int mode; /* GPIOF_DIR_OUT etc */ int irqmode; /* IRQF_TRIGGER_LOW and so on */ }; @@ -114,13 +114,15 @@ struct fmc_gpio { #define FMC_GPIO_USER(x) ((x) + 0x1400) /* 256 of them */ /* We may add SCL and SDA, or other roles if the need arises */ -/* GPIOF_DIR_IN etc are missing before 3.0. copy from <linux/gpio.h> */ -#ifndef GPIOF_DIR_IN -# define GPIOF_DIR_OUT (0 << 0) -# define GPIOF_DIR_IN (1 << 0) -# define GPIOF_INIT_LOW (0 << 1) -# define GPIOF_INIT_HIGH (1 << 1) -#endif +/* + * These are similar to the legacy Linux GPIO defines from <linux/gpio.h> + * but in fact FMC has its own GPIO handling and is not using the Linux + * GPIO subsystem. + */ +#define GPIOF_DIR_OUT (0 << 0) +#define GPIOF_DIR_IN (1 << 0) +#define GPIOF_INIT_LOW (0 << 1) +#define GPIOF_INIT_HIGH (1 << 1) /* * The operations are offered by each carrier and should make driver |