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

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Message-ID: <1525412853-24367-1-git-send-email-honghui.zhang@mediatek.com>
Date:   Fri, 4 May 2018 13:47:31 +0800
From:   <honghui.zhang@...iatek.com>
To:     <lorenzo.pieralisi@....com>, <marc.zyngier@....com>,
        <bhelgaas@...gle.com>, <matthias.bgg@...il.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-pci@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <yingjoe.chen@...iatek.com>, <eddie.huang@...iatek.com>,
        <ryder.lee@...iatek.com>
CC:     <honghui.zhang@...iatek.com>, <hongkun.cao@...iatek.com>,
        <youlin.pei@...iatek.com>, <yong.wu@...iatek.com>,
        <yt.shen@...iatek.com>, <sean.wang@...iatek.com>,
        <xinping.qian@...iatek.com>
Subject: [PATCH v7 0/2] PCI: mediatek: Fixups for the IRQ handle routine and MT7622's class code

From: Honghui Zhang <honghui.zhang@...iatek.com>

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(-)

-- 
2.6.4