BCM4331 fails to associate after suspend

[Rafał Miłecki]

W dniu 7 lutego 2012 08:04 użytkownik Rafał Miłecki <zajec5 at gmail.com> napisał:
> 2012/2/6 Seth Forshee <seth.forshee at canonical.com>:
>> On Mon, Feb 06, 2012 at 08:13:11PM +0100, Hauke Mehrtens wrote:
>>> According to the Broadcom SDK for SoCs bcma_pcicore_serdes_workaround()
>>> should be called when coming out of standby/hibernate.
>>> The code wl uses to do the same thing as bcma does is open source. You
>>> find it in the GPL package of many Broadcom based Wifi Routers.
>>
>> Thanks for the suggestion. Unfortunately calling
>> bcma_pcicore_serdes_workaround() during resume doesn't help. I'll look
>> at the wl code to see if I can learn anything there.
>
> Can you try
>
>
> diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
> index febbc0a..a097a26 100644
> --- a/drivers/bcma/main.c
> +++ b/drivers/bcma/main.c
> @@ -267,6 +267,13 @@ int bcma_bus_resume(struct bcma_bus *bus)
>                bcma_core_chipcommon_init(&bus->drv_cc);
>        }
>
> +       /* Init PCIE core */
> +       core = bcma_find_core(bus, BCMA_CORE_PCIE);
> +       if (core) {
> +               bus->drv_pci.setup_done = false;
> +               bcma_core_pci_init(&bus->drv_pci);
> +       }
> +
>        list_for_each_entry(core, &bus->cores, list) {
>                struct device_driver *drv = core->dev.driver;
>                if (drv) {

If this doesn't work out of box, please check if reloading b43 is
enough. AFAIR now you have to reload both: b43 and bcma. I hope this
patch will let you avoid reloading at least bcma.

-- 
Rafał