diff options
| author | John W. Linville <linville@tuxdriver.com> | 2013-02-06 13:55:44 -0500 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-02-06 13:55:44 -0500 |
| commit | b3b66ae4c8aff0636521034d824b8953dc617335 (patch) | |
| tree | 0a4c792efd730a59adc79d0d2476e0a4b3aa2f2e /drivers/ssb | |
| parent | bf414b369f158bb527f9f29174ada815f961b44c (diff) | |
| parent | 7b2385b95363c9ff49801c19cba2489a05bd6672 (diff) | |
| download | lwn-b3b66ae4c8aff0636521034d824b8953dc617335.tar.gz lwn-b3b66ae4c8aff0636521034d824b8953dc617335.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
Diffstat (limited to 'drivers/ssb')
| -rw-r--r-- | drivers/ssb/driver_gpio.c | 12 | ||||
| -rw-r--r-- | drivers/ssb/main.c | 9 | ||||
| -rw-r--r-- | drivers/ssb/ssb_private.h | 5 |
3 files changed, 26 insertions, 0 deletions
diff --git a/drivers/ssb/driver_gpio.c b/drivers/ssb/driver_gpio.c index 97ac0a38e3d0..eb2753008ef0 100644 --- a/drivers/ssb/driver_gpio.c +++ b/drivers/ssb/driver_gpio.c @@ -174,3 +174,15 @@ int ssb_gpio_init(struct ssb_bus *bus) return -1; } + +int ssb_gpio_unregister(struct ssb_bus *bus) +{ + if (ssb_chipco_available(&bus->chipco) || + ssb_extif_available(&bus->extif)) { + return gpiochip_remove(&bus->gpio); + } else { + SSB_WARN_ON(1); + } + + return -1; +} diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index 772ad9b5c304..24dc331b4701 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -443,6 +443,15 @@ static void ssb_devices_unregister(struct ssb_bus *bus) void ssb_bus_unregister(struct ssb_bus *bus) { + int err; + + err = ssb_gpio_unregister(bus); + if (err == -EBUSY) + ssb_dprintk(KERN_ERR PFX "Some GPIOs are still in use.\n"); + else if (err) + ssb_dprintk(KERN_ERR PFX + "Can not unregister GPIO driver: %i\n", err); + ssb_buses_lock(); ssb_devices_unregister(bus); list_del(&bus->list); diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h index 6c10b66c796c..da38305a2d22 100644 --- a/drivers/ssb/ssb_private.h +++ b/drivers/ssb/ssb_private.h @@ -252,11 +252,16 @@ static inline void ssb_extif_init(struct ssb_extif *extif) #ifdef CONFIG_SSB_DRIVER_GPIO extern int ssb_gpio_init(struct ssb_bus *bus); +extern int ssb_gpio_unregister(struct ssb_bus *bus); #else /* CONFIG_SSB_DRIVER_GPIO */ static inline int ssb_gpio_init(struct ssb_bus *bus) { return -ENOTSUPP; } +static inline int ssb_gpio_unregister(struct ssb_bus *bus) +{ + return 0; +} #endif /* CONFIG_SSB_DRIVER_GPIO */ #endif /* LINUX_SSB_PRIVATE_H_ */ |