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* [PATCH v2 00/40] PCI: dwc: Driver clean-ups
@ 2020-08-21  3:53 Rob Herring
  2020-08-21  3:53 ` [PATCH v2 01/40] PCI: Allow root and child buses to have different pci_ops Rob Herring
                   ` (41 more replies)
  0 siblings, 42 replies; 47+ messages in thread
From: Rob Herring @ 2020-08-21  3:53 UTC (permalink / raw)
  To: Bjorn Helgaas, Lorenzo Pieralisi
  Cc: linux-pci, Andy Gross, Binghui Wang, Bjorn Andersson, Dilip Kota,
	Fabio Estevam, Gustavo Pimentel, Jerome Brunet, Jesper Nilsson,
	Jingoo Han, Jonathan Chocron, Jonathan Hunter, Kevin Hilman,
	Kishon Vijay Abraham I, Krzysztof Kozlowski, Kukjin Kim,
	Kunihiko Hayashi, Lucas Stach, Martin Blumenstingl,
	Masahiro Yamada, Murali Karicheri, Neil Armstrong,
	NXP Linux Team, Pengutronix Kernel Team, Pratyush Anand,
	Richard Zhu, Sascha Hauer, Shawn Guo, Shawn Guo,
	Stanimir Varbanov, Thierry Reding, Xiaowei Song, Yue Wang,
	Marc Zyngier, linux-amlogic, linux-arm-kernel, linux-arm-kernel,
	linux-arm-msm, linux-omap, linux-samsung-soc, linux-tegra

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

^ permalink raw reply	[flat|nested] 47+ messages in thread

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Thread overview: 47+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-21  3:53 [PATCH v2 00/40] PCI: dwc: Driver clean-ups Rob Herring
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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