On 01/18/2013 03:33 PM, Piotr Haber wrote: > Hi, > > I turned GPIO support in bcma (CONFIG_BCMA_DRIVER_GPIO) > and get this in log: > > bcma: bus0: Found chip with id 0xA8D8, rev 0x01 and package 0x0A > bcma: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x22, class 0x0) > bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x17, class 0x0) > bcma: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x0F, class 0x0) > bcma: bus0: Found rev 6 PMU (capabilities 0x108C2606) > bcma: bus0: SPROM offset 0x830 > bcma: bus0: PMU resource config unknown or not needed for device 0xA8D8 > gpiochip_add: gpios -1..14 (bcma_gpio) failed to register > bcma: bus0: Error registering GPIO driver: -28 > bcma: bus0: Bus registered > bcma: bus1: Found chip with id 0x4313, rev 0x01 and package 0x08 > bcma: bus1: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24, class 0x0) > bcma: bus1: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0) > bcma: bus1: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0) > bcma: bus1: Found rev 8 PMU (capabilities 0x084C3008) > bcma: bus1: SPROM offset 0x830 > gpiochip_add: gpios -1..14 (bcma_gpio) failed to register > bcma: bus1: Error registering GPIO driver: -28 > bcma: bus1: Bus registered > bcma: bus2: Found chip with id 0x4313, rev 0x01 and package 0x08 > bcma: bus2: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x24, class 0x0) > bcma: bus2: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0) > bcma: bus2: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0) > bcma: bus2: Found rev 8 PMU (capabilities 0x084C3008) > bcma: bus2: SPROM offset 0x830 > gpiochip_add: gpios -1..14 (bcma_gpio) failed to register > bcma: bus2: Error registering GPIO driver: -28 > bcma: bus2: Bus registered > > does that mean that gpio is not usable? At least it is not usable through the standard linux gpio interface. > what might be the problem? Is this -28 (ENOSPC) originally returned in gpiochip_find_base() in drivers/gpio/gpiolib.c? I have no idea what's going wrong here, could you provide me with your kernel config and what kernel version are you using? > > Kind regards > Piotr > -- 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
