linux-kernel - [PATCH v10 0/7] PCI: mediatek: Add new generation controller support

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Message-ID: <20210420061723.989-1-jianjun.wang@mediatek.com>
Date:   Tue, 20 Apr 2021 14:17:16 +0800
From:   Jianjun Wang <jianjun.wang@...iatek.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Marc Zyngier <maz@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Ryder Lee <ryder.lee@...iatek.com>
CC:     Philipp Zabel <p.zabel@...gutronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <linux-pci@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Jianjun Wang <jianjun.wang@...iatek.com>,
        <youlin.pei@...iatek.com>, <chuanjia.liu@...iatek.com>,
        <qizhong.cheng@...iatek.com>, <sin_jieyang@...iatek.com>,
        <drinkcat@...omium.org>, <Rex-BC.Chen@...iatek.com>,
        <anson.chuang@...iatek.com>, Krzysztof Wilczyski <kw@...ux.com>,
        Pali Rohár <pali@...nel.org>
Subject: [PATCH v10 0/7] PCI: mediatek: Add new generation controller support

From: mtk15901 <jianjun.wang@...iatek.com>

These series patches add pcie-mediatek-gen3.c and dt-bindings file to
support new generation PCIe controller.

Changes in v10:
1. Fix the subject line format in commit message;
2. Use EXPORT_SYMBOL_GPL() to export pci_pio_to_address().

Changes in v9:
1. Use mtk_pcie_parse_port() to get the hw resources;
2. Remove unnecessary logs;
3. Add local IRQ enable status save/restore instead of
   the enable/disable callbacks;
4. Fix typos.

Changes in v8:
1. Add irq_clock to protect IRQ register access;
2. Mask all INTx interrupt when startup port;
3. Remove activate/deactivate callbacks from bottom_domain_ops;
4. Add unmask/mask callbacks in mtk_msi_bottom_irq_chip;
5. Add property information for reg-names.

Changes in v7:
1. Split the driver patch to core PCIe, INTx, MSI and PM patches;
2. Reshape MSI init and handle flow,
   use msi_bottom_domain to cover all sets;
3. Replace readl/writel with their relaxed version;
4. Add MSI description in binding document;
5. Add pl_250m clock in binding document.

Changes in v6:
1. Export pci_pio_to_address() to support compiling as kernel module;
2. Replace usleep_range(100 * 1000, 120 * 1000) with msleep(100);
3. Replace dev_notice with dev_err;
4. Fix MSI get hwirq flow;
5. Fix warning for possible recursive locking in mtk_pcie_set_affinity.

Changes in v5:
1. Remove unused macros
2. Modify the config read/write callbacks, set the config byte field
   in TLP header and use pci_generic_config_read32/write32
   to access the config space
3. Fix the settings of translation window, both MEM and IO regions
   works properly
4. Fix typos

Changes in v4:
1. Fix PCIe power up/down flow
2. Use "mac" and "phy" for reset names
3. Add clock names
4. Fix the variables type

Changes in v3:
1. Remove standard property in binding document
2. Return error number when get_optional* API throws an error
3. Use the bulk clk APIs

Changes in v2:
1. Fix the typo of dt-bindings patch
2. Remove the unnecessary properties in binding document
3. dispos the irq mappings of msi top domain when irq teardown

Jianjun Wang (7):
  dt-bindings: PCI: mediatek-gen3: Add YAML schema
  PCI: Export pci_pio_to_address() for module use
  PCI: mediatek-gen3: Add MediaTek Gen3 driver for MT8192
  PCI: mediatek-gen3: Add INTx support
  PCI: mediatek-gen3: Add MSI support
  PCI: mediatek-gen3: Add system PM support
  MAINTAINERS: Add Jianjun Wang as MediaTek PCI co-maintainer

 .../bindings/pci/mediatek-pcie-gen3.yaml      |  181 +++
 MAINTAINERS                                   |    1 +
 drivers/pci/controller/Kconfig                |   13 +
 drivers/pci/controller/Makefile               |    1 +
 drivers/pci/controller/pcie-mediatek-gen3.c   | 1025 +++++++++++++++++
 drivers/pci/pci.c                             |    1 +
 6 files changed, 1222 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
 create mode 100644 drivers/pci/controller/pcie-mediatek-gen3.c

-- 
2.25.1