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bcma: unregister gpios before unloading bcma

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This patch unregisters the gpio chip before bcma gets unloaded.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reported-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hauke Mehrtens 2013-02-03 23:25:33 +01:00 committed by John W. Linville
parent a5ffbe0a19
commit c50ae9470e
3 changed files with 17 additions and 0 deletions
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5
drivers/bcma/bcma_private.h
View File

@ -94,11 +94,16 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
#ifdef CONFIG_BCMA_DRIVER_GPIO
/* driver_gpio.c */
int bcma_gpio_init(struct bcma_drv_cc *cc);
int bcma_gpio_unregister(struct bcma_drv_cc *cc);
#else
static inline int bcma_gpio_init(struct bcma_drv_cc *cc)
{
return -ENOTSUPP;
}
static inline int bcma_gpio_unregister(struct bcma_drv_cc *cc)
{
return 0;
}
#endif /* CONFIG_BCMA_DRIVER_GPIO */
#endif

5
drivers/bcma/driver_gpio.c
View File

@ -96,3 +96,8 @@ int bcma_gpio_init(struct bcma_drv_cc *cc)
return gpiochip_add(chip);
}
int bcma_gpio_unregister(struct bcma_drv_cc *cc)
{
return gpiochip_remove(&cc->gpio);
}

7
drivers/bcma/main.c
View File

@ -268,6 +268,13 @@ int __devinit bcma_bus_register(struct bcma_bus *bus)
void bcma_bus_unregister(struct bcma_bus *bus)
{
struct bcma_device *cores[3];
int err;
err = bcma_gpio_unregister(&bus->drv_cc);
if (err == -EBUSY)
bcma_err(bus, "Some GPIOs are still in use.\n");
else if (err)
bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);