On Tue, 29 Mar 2016 19:41:30 +0200
Lukas Wunner <[email protected]> wrote:
> +static void quirk_apple_b43_reset(struct pci_dev *dev)
> +{
> + void __iomem *mmio;
> +
> + if (!dmi_match(DMI_BOARD_VENDOR, "Apple Inc.") || !dev->bus->self ||
> + pci_pcie_type(dev->bus->self) != PCI_EXP_TYPE_ROOT_PORT)
> + return;
> +
> + mmio = pci_iomap(dev, 0, 0);
> + if (!mmio) {
> + pr_err("b43 quirk: Cannot iomap device, IRQ storm ahead\n");
> + return;
> + }
> + iowrite32(BCMA_RESET_CTL_RESET,
> + mmio + (1 * BCMA_CORE_SIZE) + BCMA_RESET_CTL);
> + pci_iounmap(dev, mmio);
> +}
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, 0x4331, quirk_apple_b43_reset);
Looks good, as long as the wireless core is always guaranteed to be
the second core on that PCI device.
--
Michael