diff options
| author | Hauke Mehrtens <hauke@hauke-m.de> | 2012-11-20 23:24:33 +0100 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2012-11-21 21:55:52 +0100 |
| commit | ec43b08b5733494ad88aa618ecdf534320dd8207 (patch) | |
| tree | 0d11a7fca2c2baef2d8d3b14564f747b6319c20a /drivers/ssb/ssb_private.h | |
| parent | ssb: add locking around gpio register accesses (diff) | |
| download | linux-ec43b08b5733494ad88aa618ecdf534320dd8207.tar.xz linux-ec43b08b5733494ad88aa618ecdf534320dd8207.zip | |
ssb: add GPIO driver
Register a GPIO driver to access the GPIOs provided by the chip.
The GPIOs of the SoC should always start at 0 and the other GPIOs could
start at a random position. There is just one SoC in a system and when
they start at 0 the number is predictable.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4591
Acked-by: Florian Fainelli <florian@openwrt.org>
Diffstat (limited to 'drivers/ssb/ssb_private.h')
| -rw-r--r-- | drivers/ssb/ssb_private.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h index d6a1ba9394d9..463b76a2140b 100644 --- a/drivers/ssb/ssb_private.h +++ b/drivers/ssb/ssb_private.h @@ -219,4 +219,13 @@ static inline void ssb_extif_init(struct ssb_extif *extif) } #endif +#ifdef CONFIG_SSB_DRIVER_GPIO +extern int ssb_gpio_init(struct ssb_bus *bus); +#else /* CONFIG_SSB_DRIVER_GPIO */ +static inline int ssb_gpio_init(struct ssb_bus *bus) +{ + return -ENOTSUPP; +} +#endif /* CONFIG_SSB_DRIVER_GPIO */ + #endif /* LINUX_SSB_PRIVATE_H_ */ |