Re: [PATCH v7 0/2] PCI: mediatek: Fixups for the IRQ handle routine and MT7622's class code

From: Lorenzo Pieralisi
Date: Fri May 04 2018 - 09:16:43 EST


On Fri, May 04, 2018 at 01:47:31PM +0800, honghui.zhang@xxxxxxxxxxxx wrote:
> From: Honghui Zhang <honghui.zhang@xxxxxxxxxxxx>
>
> Two fixups for mediatek's host bridge:
> The first patch fixup class type and vendor ID for MT7622.
> The second patch fixup the IRQ handle routine by using irq_chip solution
> to avoid IRQ reentry which may exist for both MT2712 and MT7622.
>
> Change since v6:
> - Remove the irq_mask, irq_unmask callback in lower layer irq_chip since we
> have set the MSI_FLAG_USE_DEF_CHIP_OPS flags.
> - Add irq_ack callback in irq_chip to handle edge IRQ.
> - Uing handle_edge_irq to handle the MSI IRQs.
>
> Change since v5:
> - Make the comments consistend with the code modification in the first patch.
> - Using writew to performing a 16-bit write.
> - Using irq_chip solution to fix the IRQ issue.
>
> The v5 patchset could be found in:
> https://patchwork.kernel.org/patch/10133303
> https://patchwork.kernel.org/patch/10133305
>
> Change since v4:
> - Only setup vendor ID for MT7622, igorning the device ID since mediatek's
> host bridge driver does not cares about the device ID.
>
> Change since v3:
> - Setup the class type and vendor ID at the beginning of startup instead
> of in a quirk.
> - Add mediatek's vendor ID, it could be found in:
> https://pcisig.com/membership/member-companies?combine=&page=4
>
> Change since v2:
> - Move the initialize of the iterate before the loop to fix an
> INTx IRQ issue in the first patch
>
> Change since v1:
> - Add the second patch.
> - Make the first patch's commit message more standard.
>
> Honghui Zhang (2):
> PCI: mediatek: Set up vendor ID and class type for MT7622
> PCI: mediatek: Using chained IRQ to setup IRQ handle
>
> drivers/pci/host/pcie-mediatek.c | 234 +++++++++++++++++++++++----------------
> include/linux/pci_ids.h | 2 +
> 2 files changed, 143 insertions(+), 93 deletions(-)

Applied to pci/mediatek for v4.18, thanks.

Lorenzo