On Wed, Nov 12, 2014 at 4:40 AM, Arend van Spriel <arend@xxxxxxxxxxxx> wrote: > On 11-11-14 23:32, Felipe Contreras wrote: >> On Sun, Nov 9, 2014 at 4:46 AM, Arend van Spriel <arend@xxxxxxxxxxxx> wrote: >> >>> Could you share the nvram obtained from EFI? Also please create a kernel log >>> with debug=0xd416. >> >> There you go: >> http://people.freedesktop.org/~felipec/dmesg-brcm.txt >> > > It is using the sdhci-acpi driver for the sdio host controller. If I am > not mistaken that one does runtime-pm. This has caused issues with our > device. This is what happens: > > 1. driver sends control message and waits for firmware response. > 2. runtime pm kicks in and suspends host controller. > 3. host controller suspend disable sdio clock. > 4. host controller does not detect firmware interrupt for response. > 5. control message times out. > > You can disable it through sysfs, but the patch below may do it. I tried this patch, and although it seems to make a difference, it still doesn't work. http://people.freedesktop.org/~felipec/dmesg-brcm-2.txt -- Felipe Contreras -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
