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From: Rob Herring <robh@kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linux-pci@vger.kernel.org, Andy Gross <agross@kernel.org>,
	Binghui Wang <wangbinghui@hisilicon.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Dilip Kota <eswara.kota@linux.intel.com>,
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	Jonathan Chocron <jonnyc@amazon.com>,
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	Kishon Vijay Abraham I <kishon@ti.com>,
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Subject: [PATCH v2 00/40] PCI: dwc: Driver clean-ups
Date: Thu, 20 Aug 2020 21:53:40 -0600
Message-ID: <20200821035420.380495-1-robh@kernel.org> (raw)

This is a series of clean-ups for the Designware PCI driver. The series
initially reworks the config space accessors to use the existing pci_ops
struct. Then there's removal of various private data that's also present
in the pci_host_bridge struct. There's also some duplicated common (PCI
and DWC) register defines which I converted to use the common defines.
Finally, the initialization for speed/gen, number of lanes, and N_FTS
are all moved to the common DWC code.

This is compile tested only as I don't have any DWC based h/w, so any
testing would be helpful. A branch is here[1].

Rob

[1] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git pci-dw-cleanups

Rob Herring (40):
  PCI: Allow root and child buses to have different pci_ops
  PCI: dwc: Use DBI accessors instead of own config accessors
  PCI: dwc: Allow overriding bridge pci_ops
  PCI: dwc: Add a default pci_ops.map_bus for root port
  PCI: dwc: al: Use pci_ops for child config space accessors
  PCI: dwc: keystone: Use pci_ops for config space accessors
  PCI: dwc: tegra: Use pci_ops for root config space accessors
  PCI: dwc: meson: Use pci_ops for root config space accessors
  PCI: dwc: kirin: Use pci_ops for root config space accessors
  PCI: dwc: exynos: Use pci_ops for root config space accessors
  PCI: dwc: histb: Use pci_ops for root config space accessors
  PCI: dwc: Remove dwc specific config accessor ops
  PCI: dwc: Use generic config accessors
  PCI: Also call .add_bus() callback for root bus
  PCI: dwc: keystone: Convert .scan_bus() callback to use add_bus
  PCI: dwc: Convert to use pci_host_probe()
  PCI: dwc: Remove root_bus pointer
  PCI: dwc: Remove storing of PCI resources
  PCI: dwc: Simplify config space handling
  PCI: dwc/keystone: Drop duplicated 'num-viewport'
  PCI: dwc: Check CONFIG_PCI_MSI inside dw_pcie_msi_init()
  PCI: dwc/imx6: Remove duplicate define PCIE_LINK_WIDTH_SPEED_CONTROL
  PCI: dwc: Add a 'num_lanes' field to struct dw_pcie
  PCI: dwc: Ensure FAST_LINK_MODE is cleared
  PCI: dwc/meson: Drop the duplicate number of lanes setup
  PCI: dwc/meson: Drop unnecessary RC config space initialization
  PCI: dwc/meson: Rework PCI config and DW port logic register accesses
  PCI: dwc/imx6: Use common PCI register definitions
  PCI: dwc/qcom: Use common PCI register definitions
  PCI: dwc: Remove hardcoded PCI_CAP_ID_EXP offset
  PCI: dwc/tegra: Use common Designware port logic register definitions
  PCI: dwc: Remove read_dbi2 code
  PCI: dwc: Make ATU accessors private
  PCI: dwc: Centralize link gen setting
  PCI: dwc: Set PORT_LINK_DLL_LINK_EN in common setup code
  PCI: dwc/intel-gw: Drop unnecessary checking of DT 'device_type'
    property
  PCI: dwc/intel-gw: Move getting PCI_CAP_ID_EXP offset to
    intel_pcie_link_setup()
  PCI: dwc/intel-gw: Drop unused max_width
  PCI: dwc: Move N_FTS setup to common setup
  PCI: dwc: Use DBI accessors

 drivers/pci/controller/dwc/pci-dra7xx.c       |  29 +-
 drivers/pci/controller/dwc/pci-exynos.c       |  45 +--
 drivers/pci/controller/dwc/pci-imx6.c         |  52 +--
 drivers/pci/controller/dwc/pci-keystone.c     | 126 ++-----
 drivers/pci/controller/dwc/pci-meson.c        | 156 ++-------
 drivers/pci/controller/dwc/pcie-al.c          |  70 +---
 drivers/pci/controller/dwc/pcie-artpec6.c     |  48 +--
 .../pci/controller/dwc/pcie-designware-ep.c   |  11 +-
 .../pci/controller/dwc/pcie-designware-host.c | 319 ++++++------------
 .../pci/controller/dwc/pcie-designware-plat.c |   4 +-
 drivers/pci/controller/dwc/pcie-designware.c  | 104 +++---
 drivers/pci/controller/dwc/pcie-designware.h  |  54 +--
 drivers/pci/controller/dwc/pcie-histb.c       |  45 +--
 drivers/pci/controller/dwc/pcie-intel-gw.c    |  65 +---
 drivers/pci/controller/dwc/pcie-kirin.c       |  43 +--
 drivers/pci/controller/dwc/pcie-qcom.c        |  33 +-
 drivers/pci/controller/dwc/pcie-spear13xx.c   |  39 +--
 drivers/pci/controller/dwc/pcie-tegra194.c    | 120 ++-----
 drivers/pci/controller/dwc/pcie-uniphier.c    |   3 +-
 drivers/pci/probe.c                           |  14 +-
 include/linux/pci.h                           |   1 +
 21 files changed, 443 insertions(+), 938 deletions(-)

--
2.25.1

             reply index

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-21  3:53 Rob Herring [this message]
2020-08-21  3:53 ` [PATCH v2 01/40] PCI: Allow root and child buses to have different pci_ops Rob Herring
2020-08-21  3:53 ` [PATCH v2 02/40] PCI: dwc: Use DBI accessors instead of own config accessors Rob Herring
2020-08-21  3:53 ` [PATCH v2 03/40] PCI: dwc: Allow overriding bridge pci_ops Rob Herring
2020-08-21  3:53 ` [PATCH v2 04/40] PCI: dwc: Add a default pci_ops.map_bus for root port Rob Herring
2020-08-21  3:53 ` [PATCH v2 05/40] PCI: dwc: al: Use pci_ops for child config space accessors Rob Herring
2020-08-21  3:53 ` [PATCH v2 06/40] PCI: dwc: keystone: Use pci_ops for " Rob Herring
2020-08-21  3:53 ` [PATCH v2 07/40] PCI: dwc: tegra: Use pci_ops for root " Rob Herring
2020-08-21  3:53 ` [PATCH v2 08/40] PCI: dwc: meson: " Rob Herring
2020-08-21  3:53 ` [PATCH v2 09/40] PCI: dwc: kirin: " Rob Herring
2020-08-21  3:53 ` [PATCH v2 10/40] PCI: dwc: exynos: " Rob Herring
2020-08-21  3:53 ` [PATCH v2 11/40] PCI: dwc: histb: " Rob Herring
2020-08-21  3:53 ` [PATCH v2 12/40] PCI: dwc: Remove dwc specific config accessor ops Rob Herring
2020-08-21  3:53 ` [PATCH v2 13/40] PCI: dwc: Use generic config accessors Rob Herring
2020-08-21  3:53 ` [PATCH v2 14/40] PCI: Also call .add_bus() callback for root bus Rob Herring
2020-08-21  3:53 ` [PATCH v2 15/40] PCI: dwc: keystone: Convert .scan_bus() callback to use add_bus Rob Herring
2020-08-21  3:53 ` [PATCH v2 16/40] PCI: dwc: Convert to use pci_host_probe() Rob Herring
2020-08-21  3:53 ` [PATCH v2 17/40] PCI: dwc: Remove root_bus pointer Rob Herring
2020-08-21  3:53 ` [PATCH v2 18/40] PCI: dwc: Remove storing of PCI resources Rob Herring
2020-08-21  3:53 ` [PATCH v2 19/40] PCI: dwc: Simplify config space handling Rob Herring
2020-08-21  3:54 ` [PATCH v2 20/40] PCI: dwc/keystone: Drop duplicated 'num-viewport' Rob Herring
2020-08-21  3:54 ` [PATCH v2 21/40] PCI: dwc: Check CONFIG_PCI_MSI inside dw_pcie_msi_init() Rob Herring
2020-08-21  3:54 ` [PATCH v2 22/40] PCI: dwc/imx6: Remove duplicate define PCIE_LINK_WIDTH_SPEED_CONTROL Rob Herring
2020-08-21  3:54 ` [PATCH v2 23/40] PCI: dwc: Add a 'num_lanes' field to struct dw_pcie Rob Herring
2020-08-21  3:54 ` [PATCH v2 24/40] PCI: dwc: Ensure FAST_LINK_MODE is cleared Rob Herring
2020-08-21  3:54 ` [PATCH v2 25/40] PCI: dwc/meson: Drop the duplicate number of lanes setup Rob Herring
2020-08-21  3:54 ` [PATCH v2 26/40] PCI: dwc/meson: Drop unnecessary RC config space initialization Rob Herring
2020-08-21  3:54 ` [PATCH v2 27/40] PCI: dwc/meson: Rework PCI config and DW port logic register accesses Rob Herring
2020-08-21  3:54 ` [PATCH v2 28/40] PCI: dwc/imx6: Use common PCI register definitions Rob Herring
2020-08-21  3:54 ` [PATCH v2 29/40] PCI: dwc/qcom: " Rob Herring
2020-08-21  3:54 ` [PATCH v2 30/40] PCI: dwc: Remove hardcoded PCI_CAP_ID_EXP offset Rob Herring
2020-08-21  3:54 ` [PATCH v2 31/40] PCI: dwc/tegra: Use common Designware port logic register definitions Rob Herring
2020-08-21  3:54 ` [PATCH v2 32/40] PCI: dwc: Remove read_dbi2 code Rob Herring
2020-08-21  3:54 ` [PATCH v2 33/40] PCI: dwc: Make ATU accessors private Rob Herring
2020-08-21  3:54 ` [PATCH v2 34/40] PCI: dwc: Centralize link gen setting Rob Herring
2020-08-21  3:54 ` [PATCH v2 35/40] PCI: dwc: Set PORT_LINK_DLL_LINK_EN in common setup code Rob Herring
2020-08-21  3:54 ` [PATCH v2 36/40] PCI: dwc/intel-gw: Drop unnecessary checking of DT 'device_type' property Rob Herring
2020-08-21  3:54 ` [PATCH v2 37/40] PCI: dwc/intel-gw: Move getting PCI_CAP_ID_EXP offset to intel_pcie_link_setup() Rob Herring
2020-08-21  3:54 ` [PATCH v2 38/40] PCI: dwc/intel-gw: Drop unused max_width Rob Herring
2020-08-21  3:54 ` [PATCH v2 39/40] PCI: dwc: Move N_FTS setup to common setup Rob Herring
2020-08-21  3:54 ` [PATCH v2 40/40] PCI: dwc: Use DBI accessors Rob Herring
2020-09-07  9:35 ` [PATCH v2 00/40] PCI: dwc: Driver clean-ups Lorenzo Pieralisi
2020-09-15  9:12 ` Michael Walle
2020-09-15 22:02   ` Rob Herring
2020-09-16  7:54     ` Michael Walle
2020-09-29  5:23       ` Kishon Vijay Abraham I
2020-09-29 14:32         ` Rob Herring

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