Commit Graph

271 Commits

Author SHA1 Message Date
Linus Torvalds 926b02d3eb pci-v4.21-changes
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Merge tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - Remove unused lists from ASPM pcie_link_state (Frederick Lawler)

 - Fix Broadcom CNB20LE host bridge unintended sign extension (Colin Ian
   King)

 - Expand Kconfig "PF" acronyms (Randy Dunlap)

 - Update MAINTAINERS for arch/x86/kernel/early-quirks.c (Bjorn Helgaas)

 - Add missing include to drivers/pci.h (Alexandru Gagniuc)

 - Override Synopsys USB 3.x HAPS device class so dwc3-haps can claim it
   instead of xhci (Thinh Nguyen)

 - Clean up P2PDMA documentation (Randy Dunlap)

 - Allow runtime PM even if driver doesn't supply callbacks (Jarkko
   Nikula)

 - Remove status check after submitting Switchtec MRPC Firmware Download
   commands to avoid Completion Timeouts (Kelvin Cao)

 - Set Switchtec coherent DMA mask to allow 64-bit DMA (Boris Glimcher)

 - Fix Switchtec SWITCHTEC_IOCTL_EVENT_IDX_ALL flag overwrite issue
   (Joey Zhang)

 - Enable write combining for Switchtec MRPC Input buffers (Kelvin Cao)

 - Add Switchtec MRPC DMA mode support (Wesley Sheng)

 - Skip VF scanning on powerpc, which does this in firmware (Sebastian
   Ott)

 - Add Amlogic Meson PCIe controller driver and DT bindings (Yue Wang)

 - Constify histb dw_pcie_host_ops structure (Julia Lawall)

 - Support multiple power domains for imx6 (Leonard Crestez)

 - Constify layerscape driver data (Stefan Agner)

 - Update imx6 Kconfig to allow imx6 PCIe in imx7 kernel (Trent Piepho)

 - Support armada8k GPIO reset (Baruch Siach)

 - Support suspend/resume support on imx6 (Leonard Crestez)

 - Don't hard-code DesignWare DBI/ATU offst (Stephen Warren)

 - Skip i.MX6 PHY setup on i.MX7D (Andrey Smirnov)

 - Remove Jianguo Sun from HiSilicon STB maintainers (Lorenzo Pieralisi)

 - Mask DesignWare interrupts instead of disabling them to avoid lost
   interrupts (Marc Zyngier)

 - Add locking when acking DesignWare interrupts (Marc Zyngier)

 - Ack DesignWare interrupts in the proper callbacks (Marc Zyngier)

 - Use devm resource parser in mediatek (Honghui Zhang)

 - Remove unused mediatek "num-lanes" DT property (Honghui Zhang)

 - Add UniPhier PCIe controller driver and DT bindings (Kunihiko
   Hayashi)

 - Enable MSI for imx6 downstream components (Richard Zhu)

* tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (40 commits)
  PCI: imx: Enable MSI from downstream components
  s390/pci: skip VF scanning
  PCI/IOV: Add flag so platforms can skip VF scanning
  PCI/IOV: Factor out sriov_add_vfs()
  PCI: uniphier: Add UniPhier PCIe host controller support
  dt-bindings: PCI: Add UniPhier PCIe host controller description
  PCI: amlogic: Add the Amlogic Meson PCIe controller driver
  dt-bindings: PCI: meson: add DT bindings for Amlogic Meson PCIe controller
  arm64: dts: mt7622: Remove un-used property for PCIe
  arm: dts: mt7623: Remove un-used property for PCIe
  dt-bindings: PCI: MediaTek: Remove un-used property
  PCI: mediatek: Remove un-used variant in struct mtk_pcie_port
  MAINTAINERS: Remove Jianguo Sun from HiSilicon STB DWC entry
  PCI: dwc: Don't hard-code DBI/ATU offset
  PCI: imx: Add imx6sx suspend/resume support
  PCI: armada8k: Add support for gpio controlled reset signal
  PCI: dwc: Adjust Kconfig to allow IMX6 PCIe host on IMX7
  PCI: dwc: layerscape: Constify driver data
  PCI: imx: Add multi-pd support
  PCI: Override Synopsys USB 3.x HAPS device class
  ...
2019-01-05 17:57:34 -08:00
Bjorn Helgaas cdf4f4dc11 Merge branch 'remotes/lorenzo/pci/uniphier'
- Add UniPhier PCIe controller driver and DT bindings (Kunihiko Hayashi)

* remotes/lorenzo/pci/uniphier:
  PCI: uniphier: Add UniPhier PCIe host controller support
  dt-bindings: PCI: Add UniPhier PCIe host controller description

# Conflicts:
#	drivers/pci/controller/dwc/Kconfig
#	drivers/pci/controller/dwc/Makefile
2019-01-02 15:31:15 -06:00
Bjorn Helgaas c266b026ae Merge branch 'remotes/lorenzo/pci/mediatek'
- Use devm resource parser in mediatek (Honghui Zhang)

  - Remove unused mediatek "num-lanes" DT property (Honghui Zhang)

* remotes/lorenzo/pci/mediatek:
  arm64: dts: mt7622: Remove un-used property for PCIe
  arm: dts: mt7623: Remove un-used property for PCIe
  dt-bindings: PCI: MediaTek: Remove un-used property
  PCI: mediatek: Remove un-used variant in struct mtk_pcie_port
  PCI: mediatek: Use devm_of_pci_get_host_bridge_resources() to parse DT
2019-01-02 15:31:10 -06:00
Bjorn Helgaas 6a790bf0ea Merge branch 'remotes/lorenzo/pci/dwc'
- Constify histb dw_pcie_host_ops structure (Julia Lawall)

  - Support multiple power domains for imx6 (Leonard Crestez)

  - Constify layerscape driver data (Stefan Agner)

  - Update imx6 Kconfig to allow imx6 PCIe in imx7 kernel (Trent Piepho)

  - Support armada8k GPIO reset (Baruch Siach)

  - Support suspend/resume support on imx6 (Leonard Crestez)

  - Don't hard-code DesignWare DBI/ATU offst (Stephen Warren)

  - Skip i.MX6 PHY setup on i.MX7D (Andrey Smirnov)

  - Remove Jianguo Sun from HiSilicon STB maintainers (Lorenzo Pieralisi)

* remotes/lorenzo/pci/dwc:
  MAINTAINERS: Remove Jianguo Sun from HiSilicon STB DWC entry
  PCI: dwc: Don't hard-code DBI/ATU offset
  PCI: imx: Add imx6sx suspend/resume support
  PCI: armada8k: Add support for gpio controlled reset signal
  PCI: dwc: Adjust Kconfig to allow IMX6 PCIe host on IMX7
  PCI: dwc: layerscape: Constify driver data
  PCI: imx: Add multi-pd support
  dt-bindings: imx6q-pcie: Add multi-pd bindings for imx6sx
  PCI: histb: Constify dw_pcie_host_ops structure
2019-01-02 15:31:08 -06:00
Linus Torvalds b7badd1d7a ARM: Device-tree updates
As usual, this is where the bulk of our changes end up landing each
 merge window.
 
 The individual updates are too many to enumerate, many many platforms
 have seen additions of device descriptions such that they are
 functionally more complete (in fact, this is often the bulk of updates
 we see).
 
 Instead I've mostly focused on highlighting the new platforms below as
 they are introduced. Sometimes the introduction is of mostly a fragment,
 that later gets filled in on later releases, and in some cases it's
 near-complete platform support. The latter is more common for derivative
 platforms that already has similar support in-tree.
 
 Two SoCs are slight outliers from the usual range of additions. Allwinner
 support for F1C100s, a quite old SoC (ARMv5-based) shipping in the
 Lychee Pi Nano platform. At the other end is NXP Layerscape LX2160A,
 a 16-core 2.2GHz Cortex-A72 SoC with a large amount of I/O aimed at
 infrastructure/networking.
 
 TI updates stick out in the diff stats too, in particular because they
 have moved the description of their L4 on-chip interconnect to devicetree,
 which opens up for removal of even more of their platform-specific
 'hwmod' description tables over the next few releases.
 
 SoCs:
  - Qualcomm QCS404 (4x Cortex-A53)
  - Allwinner T3 (rebranded R40) and f1c100s (armv5)
  - NXP i.MX7ULP (1x Cortex-A7 + 1x Cortex-M4)
  - NXP LS1028A (2x Cortex-A72), LX2160A (16x Cortex-A72)
 
 New platforms:
  - Rockchip: Gru Scarlet (RK3188 Tablet)
  - Amlogic: Phicomm N1 (S905D), Libretech S805-AC
  - Broadcom: Linksys EA6500 v2 Wi-Fi router (BCM4708)
  - Qualcomm: QCS404 base platform and EVB
  - Qualcomm: Remove of Arrow SD600
  - PXA: First PXA3xx DT board: Raumfeld
  - Aspeed: Facebook Backpack-CMM BMC
  - Renesas iWave G20D-Q7 (RZ/G1N)
  - Allwinner t3-cqa3t-bv3 (T3/R40) and Lichee Pi Nano (F1C100s)
  - Allwinner Emlid Neutis N5, Mapleboard MP130
  - Marvell Macchiatobin Single Shot (Armada 8040, no 10GbE)
  - i.MX: mtrion emCON-MX6, imx6ul-pico-pi, imx7d-sdb-reva
  - VF610: Liebherr's BK4 device, ZII SCU4 AIB board
  - i.MX7D PICO Hobbit baseboard
  - i.MX7ULP EVK board
  - NXP LX2160AQDS and LX2160ARDB boards
 
 Other:
  - Coresight binding updates across the board
  - CPU cooling maps updates across the board
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM Device-tree updates from Olof Johansson:
 "As usual, this is where the bulk of our changes end up landing each
  merge window.

  The individual updates are too many to enumerate, many many platforms
  have seen additions of device descriptions such that they are
  functionally more complete (in fact, this is often the bulk of updates
  we see).

  Instead I've mostly focused on highlighting the new platforms below as
  they are introduced. Sometimes the introduction is of mostly a
  fragment, that later gets filled in on later releases, and in some
  cases it's near-complete platform support. The latter is more common
  for derivative platforms that already has similar support in-tree.

  Two SoCs are slight outliers from the usual range of additions.
  Allwinner support for F1C100s, a quite old SoC (ARMv5-based) shipping
  in the Lychee Pi Nano platform. At the other end is NXP Layerscape
  LX2160A, a 16-core 2.2GHz Cortex-A72 SoC with a large amount of I/O
  aimed at infrastructure/networking.

  TI updates stick out in the diff stats too, in particular because they
  have moved the description of their L4 on-chip interconnect to
  devicetree, which opens up for removal of even more of their
  platform-specific 'hwmod' description tables over the next few
  releases.

  SoCs:
   - Qualcomm QCS404 (4x Cortex-A53)
   - Allwinner T3 (rebranded R40) and f1c100s (armv5)
   - NXP i.MX7ULP (1x Cortex-A7 + 1x Cortex-M4)
   - NXP LS1028A (2x Cortex-A72), LX2160A (16x Cortex-A72)

  New platforms:
   - Rockchip: Gru Scarlet (RK3188 Tablet)
   - Amlogic: Phicomm N1 (S905D), Libretech S805-AC
   - Broadcom: Linksys EA6500 v2 Wi-Fi router (BCM4708)
   - Qualcomm: QCS404 base platform and EVB
   - Qualcomm: Remove of Arrow SD600
   - PXA: First PXA3xx DT board: Raumfeld
   - Aspeed: Facebook Backpack-CMM BMC
   - Renesas iWave G20D-Q7 (RZ/G1N)
   - Allwinner t3-cqa3t-bv3 (T3/R40) and Lichee Pi Nano (F1C100s)
   - Allwinner Emlid Neutis N5, Mapleboard MP130
   - Marvell Macchiatobin Single Shot (Armada 8040, no 10GbE)
   - i.MX: mtrion emCON-MX6, imx6ul-pico-pi, imx7d-sdb-reva
   - VF610: Liebherr's BK4 device, ZII SCU4 AIB board
   - i.MX7D PICO Hobbit baseboard
   - i.MX7ULP EVK board
   - NXP LX2160AQDS and LX2160ARDB boards

  Other:
   - Coresight binding updates across the board
   - CPU cooling maps updates across the board"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (648 commits)
  ARM: dts: suniv: Fix improper bindings include patch
  ARM: dts: sunxi: Enable Broadcom-based Bluetooth for multiple boards
  arm64: dts: allwinner: a64: bananapi-m64: Add Bluetooth device node
  ARM: dts: suniv: Fix improper bindings include patch
  arm64: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller
  arm64: dts: Remove unused properties from FSL QSPI driver nodes
  ARM: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller
  ARM: dts: imx6sx-sdb: Fix the reg properties for the FSL QSPI nodes
  ARM: dts: Remove unused properties from FSL QSPI driver nodes
  arm64: dts: ti: k3-am654: Enable main domain McSPI0
  arm64: dts: ti: k3-am654: Add McSPI DT nodes
  arm64: dts: ti: k3-am654: Populate power-domain property for UART nodes
  arm64: dts: ti: k3-am654-base-board: Enable ECAP PWM
  arm64: dts: ti: k3-am65-main: Add ECAP PWM node
  arm64: dts: ti: k3-am654-base-board: Add I2C nodes
  arm64: dts: ti: am654-base-board: Add pinmux for main uart0
  arm64: dts: ti: k3-am65: Add pinctrl regions
  dt-bindings: pinctrl: k3: Introduce pinmux definitions
  ARM: dts: exynos: Specify I2S assigned clocks in proper node
  ARM: dts: exynos: Add missing CPUs in cooling maps for Odroid X2
  ...
2018-12-31 17:36:02 -08:00
Kunihiko Hayashi db67cdb042 dt-bindings: PCI: Add UniPhier PCIe host controller description
Add DT bindings for PCIe controller implemented in UniPhier SoCs when
configured in Root Complex (host) mode. This controller is based on
the DesignWare PCIe core.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-12-19 10:25:37 +00:00
Yue Wang 7cd2103911 dt-bindings: PCI: meson: add DT bindings for Amlogic Meson PCIe controller
The Amlogic Meson PCIe host controller is based on the Synopsys DesignWare
PCI core. This patch adds documentation for the DT bindings in Meson PCIe
controller.

Signed-off-by: Yue Wang <yue.wang@amlogic.com>
Signed-off-by: Hanjie Lin <hanjie.lin@amlogic.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-12-19 10:24:24 +00:00
Honghui Zhang f2bb7d6a82 dt-bindings: PCI: MediaTek: Remove un-used property
The "num-lanes" property is not used, remove it.

Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2018-12-18 13:48:17 +00:00
Hou Zhiqiang ac8ed2824e dt-bindings: pci: layerscape-pci: removed compatible string "snps,dw-pcie"
Removed the compatible string "snps,dw-pcie", it is for the reference
platform driver for PCI RC IP Protoyping Kits based on the ARC SDP,
so it is not suitable for all platform with designware PCIe controller,
and platform vendors have themselves' drivers.

The compatible string "snsp,dw-pcie" was added by mistake and it's not
matched that time, but it is matched because PCIe drivers has been
collected recently.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-12-10 10:02:23 +08:00
Hou Zhiqiang 8ff7754ae1 dt-bindings: pci: layerscape-pci: add compatible strings "fsl,ls1043a-pcie"
The PCIe compatible string for LS1043A was lost, so add it.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-12-10 10:02:23 +08:00
Will Deacon 806654a966 Documentation: Use "while" instead of "whilst"
Whilst making an unrelated change to some Documentation, Linus sayeth:

  | Afaik, even in Britain, "whilst" is unusual and considered more
  | formal, and "while" is the common word.
  |
  | [...]
  |
  | Can we just admit that we work with computers, and we don't need to
  | use þe eald Englisc spelling of words that most of the world never
  | uses?

dictionary.com refers to the word as "Chiefly British", which is
probably an undesirable attribute for technical documentation.

Replace all occurrences under Documentation/ with "while".

Cc: David Howells <dhowells@redhat.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michael Halcrow <mhalcrow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-11-20 09:30:43 -07:00
Leonard Crestez e24b6b513e dt-bindings: imx6q-pcie: Add multi-pd bindings for imx6sx
The PCIe and PCIE_PHY blocks are in different power domains on imx6sx
and this needs to be described using multi-pd bindings.

This was not required until now because the power-domain of the PCIe
block (DISPLAY) was always on.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-11-20 12:15:51 +00:00
Bjorn Helgaas fc23af0cb1 Merge branch 'remotes/lorenzo/pci/keystone'
- Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I)

  - Update Keystone to use MRRS quirk for host bridge instead of open
    coding (Kishon Vijay Abraham I)

  - Refactor Keystone link establishment (Kishon Vijay Abraham I)

  - Simplify and speed up Keystone link training (Kishon Vijay Abraham I)

  - Remove unused Keystone host_init argument (Kishon Vijay Abraham I)

  - Merge Keystone driver files into one (Kishon Vijay Abraham I)

  - Remove redundant Keystone platform_set_drvdata() (Kishon Vijay Abraham
    I)

  - Rename Keystone functions for uniformity (Kishon Vijay Abraham I)

  - Add Keystone device control module DT binding (Kishon Vijay Abraham I)

  - Use SYSCON API to get Keystone control module device IDs (Kishon Vijay
    Abraham I)

  - Clean up Keystone PHY handling (Kishon Vijay Abraham I)

  - Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I)

  - Clean up Keystone config space access checks (Kishon Vijay Abraham I)

  - Get Keystone outbound window count from DT (Kishon Vijay Abraham I)

  - Clean up Keystone outbound window configuration (Kishon Vijay Abraham
    I)

  - Clean up Keystone DBI setup (Kishon Vijay Abraham I)

  - Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I)

  - Fix Keystone IRQ status checking (Kishon Vijay Abraham I)

  - Add debug messages for all Keystone errors (Kishon Vijay Abraham I)

  - Clean up Keystone includes and macros (Kishon Vijay Abraham I)

* remotes/lorenzo/pci/keystone:
  PCI: keystone: Cleanup macros defined in pci-keystone.c
  PCI: keystone: Reorder header file in alphabetical order
  PCI: keystone: Add debug error message for all errors
  PCI: keystone: Use ERR_IRQ_STATUS instead of ERR_IRQ_STATUS_RAW to get interrupt status
  PCI: keystone: Cleanup ks_pcie_link_up()
  PCI: keystone: Cleanup set_dbi_mode() and get_dbi_mode()
  PCI: keystone: Cleanup outbound window configuration
  PCI: keystone: Get number of outbound windows from DT
  PCI: keystone: Cleanup configuration space access
  PCI: keystone: Invoke runtime PM APIs to enable clock
  PCI: keystone: Cleanup PHY handling
  PCI: keystone: Use SYSCON APIs to get device ID from control module
  dt-bindings: PCI: keystone: Add bindings to get device control module
  PCI: keystone: Use uniform function naming convention
  PCI: keystone: Remove redundant platform_set_drvdata() invocation
  PCI: keystone: Merge pci-keystone-dw.c and pci-keystone.c
  PCI: keystone: Remove unused argument from ks_dw_pcie_host_init()
  PCI: keystone: Do not initiate link training multiple times
  PCI: keystone: Move dw_pcie_setup_rc() out of ks_pcie_establish_link()
  PCI: keystone: Use quirk to set MRRS for PCI host bridge
  PCI: keystone: Use quirk to limit MRRS for K2G
2018-10-20 11:45:51 -05:00
Bjorn Helgaas 525fde0750 Merge branch 'remotes/lorenzo/pci/dwc'
- Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach)

  - Add initial power management for i.MX7 (Leonard Crestez)

  - Add PME_Turn_Off support for i.MX7 (Leonard Crestez)

  - Fix qcom runtime power management error handling (Bjorn Andersson)

  - Update TI dra7xx unaligned access errata workaround for host mode as
    well as endpoint mode (Vignesh R)

  - Fix kirin section mismatch warning (Nathan Chancellor)

* remotes/lorenzo/pci/dwc:
  PCI: imx: Add PME_Turn_Off support
  ARM: dts: imx7d: Add turnoff reset
  dt-bindings: imx6q-pcie: Add turnoff reset for imx7d
  reset: imx7: Add PCIE_CTRL_APPS_TURNOFF
  PCI: kirin: Fix section mismatch warning
  PCI: dwc: pci-dra7xx: Enable errata i870 for both EP and RC mode
  dt-bindings: PCI: dra7xx: Add bindings for unaligned access in host mode
  PCI: qcom: Fix error handling in runtime PM support
  PCI: imx: Initial imx7d pm support
  PCI: imx6: Support MPLL reconfiguration for 100MHz and 200MHz refclock
2018-10-20 11:45:49 -05:00
Kishon Vijay Abraham I 03d1783864 dt-bindings: PCI: keystone: Add bindings to get device control module
Add bindings to get device control module which has the device id and
vendor id to be configured in the keystone PCIe controller.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-10-17 09:45:07 +01:00
Biju Das 684e07ed39 dt-bindings: PCI: rcar: Add device tree support for r8a7744
Add support for r8a7744. The Renesas RZ/G1N (R8A7744) PCIe controller
is identical to the R-Car Gen2 family.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2018-10-12 17:59:12 +01:00
Leonard Crestez 3e3f50b148 dt-bindings: imx6q-pcie: Add turnoff reset for imx7d
This is documented as "required" but won't be present in old dtbs.

These resets are also present on other imx chips but right now only
imx7d implements them through the reset controller subsystem.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
2018-10-05 09:56:28 +01:00
Biju Das 6adb734bb9 dt-bindings: PCI: rcar: Add device tree support for r8a7744
Add internal PCI bridge support for r8a7744 SoC. The Renesas RZ/G1N
(R8A7744) internal PCI bridge is identical to the R-Car Gen2 family.

This doesn't change the driver, so it does nothing by itself.  But it does
mean that checkpatch won't complain about a future patch that adds
"renesas,pci-r8a7744" to a DT, which helps ensure that shipped DTs use
documented compatibility strings.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2018-10-04 11:16:41 +01:00
Tho Vu 7ae76c4c5a DT: pci: rcar-pci: document R8A77990 bindings
Document the R-Car E3 (R8A77990) SoC in the R-Car PCIe bindings.

Signed-off-by: Tho Vu <tho.vu.wh@rvc.renesas.com>
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: linux-renesas-soc@vger.kernel.org
2018-10-02 10:58:43 +01:00
Vignesh R e3336a18ff dt-bindings: PCI: dra7xx: Add bindings for unaligned access in host mode
Update device tree binding documentation of TI's dra7xx PCI controller
for enabling unaligned mem access as applicable not just in EP mode but
in host mode as well.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-09-25 10:52:59 +01:00
Linus Torvalds 4e31843f68 pci-v4.19-changes
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Merge tag 'pci-v4.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:

 - Decode AER errors with names similar to "lspci" (Tyler Baicar)

 - Expose AER statistics in sysfs (Rajat Jain)

 - Clear AER status bits selectively based on the type of recovery (Oza
   Pawandeep)

 - Honor "pcie_ports=native" even if HEST sets FIRMWARE_FIRST (Alexandru
   Gagniuc)

 - Don't clear AER status bits if we're using the "Firmware-First"
   strategy where firmware owns the registers (Alexandru Gagniuc)

 - Use sysfs_match_string() to simplify ASPM sysfs parsing (Andy
   Shevchenko)

 - Remove unnecessary includes of <linux/pci-aspm.h> (Bjorn Helgaas)

 - Defer DPC event handling to work queue (Keith Busch)

 - Use threaded IRQ for DPC bottom half (Keith Busch)

 - Print AER status while handling DPC events (Keith Busch)

 - Work around IDT switch ACS Source Validation erratum (James
   Puthukattukaran)

 - Emit diagnostics for all cases of PCIe Link downtraining (Links
   operating slower than they're capable of) (Alexandru Gagniuc)

 - Skip VFs when configuring Max Payload Size (Myron Stowe)

 - Reduce Root Port Max Payload Size if necessary when hot-adding a
   device below it (Myron Stowe)

 - Simplify SHPC existence/permission checks (Bjorn Helgaas)

 - Remove hotplug sample skeleton driver (Lukas Wunner)

 - Convert pciehp to threaded IRQ handling (Lukas Wunner)

 - Improve pciehp tolerance of missed events and initially unstable
   links (Lukas Wunner)

 - Clear spurious pciehp events on resume (Lukas Wunner)

 - Add pciehp runtime PM support, including for Thunderbolt controllers
   (Lukas Wunner)

 - Support interrupts from pciehp bridges in D3hot (Lukas Wunner)

 - Mark fall-through switch cases before enabling -Wimplicit-fallthrough
   (Gustavo A. R. Silva)

 - Move DMA-debug PCI init from arch code to PCI core (Christoph
   Hellwig)

 - Fix pci_request_irq() usage of IRQF_ONESHOT when no handler is
   supplied (Heiner Kallweit)

 - Unify PCI and DMA direction #defines (Shunyong Yang)

 - Add PCI_DEVICE_DATA() macro (Andy Shevchenko)

 - Check for VPD completion before checking for timeout (Bert Kenward)

 - Limit Netronome NFP5000 config space size to work around erratum
   (Jakub Kicinski)

 - Set IRQCHIP_ONESHOT_SAFE for PCI MSI irqchips (Heiner Kallweit)

 - Document ACPI description of PCI host bridges (Bjorn Helgaas)

 - Add "pci=disable_acs_redir=" parameter to disable ACS redirection for
   peer-to-peer DMA support (we don't have the peer-to-peer support yet;
   this is just one piece) (Logan Gunthorpe)

 - Clean up devm_of_pci_get_host_bridge_resources() resource allocation
   (Jan Kiszka)

 - Fixup resizable BARs after suspend/resume (Christian König)

 - Make "pci=earlydump" generic (Sinan Kaya)

 - Fix ROM BAR access routines to stay in bounds and check for signature
   correctly (Rex Zhu)

 - Add DMA alias quirk for Microsemi Switchtec NTB (Doug Meyer)

 - Expand documentation for pci_add_dma_alias() (Logan Gunthorpe)

 - To avoid bus errors, enable PASID only if entire path supports
   End-End TLP prefixes (Sinan Kaya)

 - Unify slot and bus reset functions and remove hotplug knowledge from
   callers (Sinan Kaya)

 - Add Function-Level Reset quirks for Intel and Samsung NVMe devices to
   fix guest reboot issues (Alex Williamson)

 - Add function 1 DMA alias quirk for Marvell 88SS9183 PCIe SSD
   Controller (Bjorn Helgaas)

 - Remove Xilinx AXI-PCIe host bridge arch dependency (Palmer Dabbelt)

 - Remove Aardvark outbound window configuration (Evan Wang)

 - Fix Aardvark bridge window sizing issue (Zachary Zhang)

 - Convert Aardvark to use pci_host_probe() to reduce code duplication
   (Thomas Petazzoni)

 - Correct the Cadence cdns_pcie_writel() signature (Alan Douglas)

 - Add Cadence support for optional generic PHYs (Alan Douglas)

 - Add Cadence power management ops (Alan Douglas)

 - Remove redundant variable from Cadence driver (Colin Ian King)

 - Add Kirin MSI support (Xiaowei Song)

 - Drop unnecessary root_bus_nr setting from exynos, imx6, keystone,
   armada8k, artpec6, designware-plat, histb, qcom, spear13xx (Shawn
   Guo)

 - Move link notification settings from DesignWare core to individual
   drivers (Gustavo Pimentel)

 - Add endpoint library MSI-X interfaces (Gustavo Pimentel)

 - Correct signature of endpoint library IRQ interfaces (Gustavo
   Pimentel)

 - Add DesignWare endpoint library MSI-X callbacks (Gustavo Pimentel)

 - Add endpoint library MSI-X test support (Gustavo Pimentel)

 - Remove unnecessary GFP_ATOMIC from Hyper-V "new child" allocation
   (Jia-Ju Bai)

 - Add more devices to Broadcom PAXC quirk (Ray Jui)

 - Work around corrupted Broadcom PAXC config space to enable SMMU and
   GICv3 ITS (Ray Jui)

 - Disable MSI parsing to work around broken Broadcom PAXC logic in some
   devices (Ray Jui)

 - Hide unconfigured functions to work around a Broadcom PAXC defect
   (Ray Jui)

 - Lower iproc log level to reduce console output during boot (Ray Jui)

 - Fix mobiveil iomem/phys_addr_t type usage (Lorenzo Pieralisi)

 - Fix mobiveil missing include file (Lorenzo Pieralisi)

 - Add mobiveil Kconfig/Makefile support (Lorenzo Pieralisi)

 - Fix mvebu I/O space remapping issues (Thomas Petazzoni)

 - Use generic pci_host_bridge in mvebu instead of ARM-specific API
   (Thomas Petazzoni)

 - Whitelist VMD devices with fast interrupt handlers to avoid sharing
   vectors with slow handlers (Keith Busch)

* tag 'pci-v4.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (153 commits)
  PCI/AER: Don't clear AER bits if error handling is Firmware-First
  PCI: Limit config space size for Netronome NFP5000
  PCI/MSI: Set IRQCHIP_ONESHOT_SAFE for PCI-MSI irqchips
  PCI/VPD: Check for VPD access completion before checking for timeout
  PCI: Add PCI_DEVICE_DATA() macro to fully describe device ID entry
  PCI: Match Root Port's MPS to endpoint's MPSS as necessary
  PCI: Skip MPS logic for Virtual Functions (VFs)
  PCI: Add function 1 DMA alias quirk for Marvell 88SS9183
  PCI: Check for PCIe Link downtraining
  PCI: Add ACS Redirect disable quirk for Intel Sunrise Point
  PCI: Add device-specific ACS Redirect disable infrastructure
  PCI: Convert device-specific ACS quirks from NULL termination to ARRAY_SIZE
  PCI: Add "pci=disable_acs_redir=" parameter for peer-to-peer support
  PCI: Allow specifying devices using a base bus and path of devfns
  PCI: Make specifying PCI devices in kernel parameters reusable
  PCI: Hide ACS quirk declarations inside PCI core
  PCI: Delay after FLR of Intel DC P3700 NVMe
  PCI: Disable Samsung SM961/PM961 NVMe before FLR
  PCI: Export pcie_has_flr()
  PCI: mvebu: Drop bogus comment above mvebu_pcie_map_registers()
  ...
2018-08-16 09:21:54 -07:00
Rob Herring 791d3ef2e1 dt-bindings: remove 'interrupt-parent' from bindings
'interrupt-parent' is often documented as part of define bindings, but
it is really outside the scope of a device binding. It's never required
in a given node as it is often inherited from a parent node. Or it can
be implicit if a parent node is an 'interrupt-controller' node. So
remove it from all the binding files.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2018-07-25 14:09:39 -06:00
Alan Douglas 82dfbd27c8 dt-bindings: PCI: cadence: Add DT bindings for optional PHYs
Update DT documentation to include optional PHYs for cadence PCIe
host and endpoint controllers.

Signed-off-by: Alan Douglas <adouglas@cadence.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-07-11 10:39:40 +01:00
Mauro Carvalho Chehab e5ca4259b8 devicetree: fix a series of wrong file references
As files got renamed, their references broke.

Manually fix a series of broken refs at the DT bindings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Linus Torvalds 289cf155d9 DeviceTree updates for v4.18:
- Sync dtc with upstream version v1.4.6-21-g84e414b0b5bc. This adds new
   warnings which are either fixed or disabled by default (enabled with
   W=1).
 
 - Validate an untrusted offset in DT overlay function
   update_usages_of_a_phandle_reference
 
 - Fix a use after free error of_platform_device_destroy
 
 - Fix an off by 1 string errors in unittest
 
 - Avoid creating a struct device for OPP nodes
 
 - Update DT specific submitting-patches.txt with patch content and
   subject requirements.
 
 - Move some bindings to their proper subsystem locations
 
 - Add vendor prefixes for Kaohsiung, SiFive, Avnet, Wi2Wi, Logic PD, and
   ArcherMind
 
 - Add documentation for "no-gpio-delays" property in FSI bus GPIO master
 
 - Add compatible for r8a77990 SoC ravb ethernet block
 
 - More wack-a-mole removal of 'status' property in examples
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Merge tag 'devicetree-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - Sync dtc with upstream version v1.4.6-21-g84e414b0b5bc. This adds new
   warnings which are either fixed or disabled by default (enabled with
   W=1).

 - Validate an untrusted offset in DT overlay function
   update_usages_of_a_phandle_reference

 - Fix a use after free error of_platform_device_destroy

 - Fix an off by 1 string errors in unittest

 - Avoid creating a struct device for OPP nodes

 - Update DT specific submitting-patches.txt with patch content and
   subject requirements.

 - Move some bindings to their proper subsystem locations

 - Add vendor prefixes for Kaohsiung, SiFive, Avnet, Wi2Wi, Logic PD,
   and ArcherMind

 - Add documentation for "no-gpio-delays" property in FSI bus GPIO
   master

 - Add compatible for r8a77990 SoC ravb ethernet block

 - More wack-a-mole removal of 'status' property in examples

* tag 'devicetree-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (25 commits)
  dt-bindings: submitting-patches: add guidance on patch content and subject
  of: platform: stop accessing invalid dev in of_platform_device_destroy
  dt-bindings: net: ravb: Add support for r8a77990 SoC
  dt-bindings: Add vendor prefix for ArcherMind
  dt-bindings: fsi-master-gpio: Document "no-gpio-delays" property
  dt-bindings: Add vendor prefix for Logic PD
  of: overlay: validate offset from property fixups
  of: unittest: for strings, account for trailing \0 in property length field
  drm: rcar-du: disable dtc graph-endpoint warnings on DT overlays
  kbuild: disable new dtc graph and unit-address warnings
  scripts/dtc: Update to upstream version v1.4.6-21-g84e414b0b5bc
  MAINTAINERS: add keyword for devicetree overlay notifiers
  dt-bindings: define vendor prefix for Wi2Wi, Inc.
  dt-bindings: Add vendor prefix for Avnet, Inc.
  dt-bindings: Relocate Tegra20 memory controller bindings
  dt-bindings: Add "sifive" vendor prefix
  dt-bindings: exynos: move ADC binding to iio/adc/ directory
  dt-bindings: powerpc/4xx: move 4xx NDFC and EMAC bindings to subsystem directories
  dt-bindings: move various RNG bindings to rng/ directory
  dt-bindings: move various timer bindings to timer/ directory
  ...
2018-06-07 14:06:31 -07:00
Bjorn Helgaas e52d38f4ab Merge branch 'lorenzo/pci/rockchip'
- update arm64 defconfig for Rockchip (Shawn Lin)

  - refactor Rockchip code to facilitate both root port and endpoint mode
    (Shawn Lin)

  - add Rockchip endpoint mode driver (Shawn Lin)

* lorenzo/pci/rockchip:
  arm64: defconfig: update config for Rockchip PCIe
  dt-bindings: PCI: rockchip: Add DT bindings for Rockchip PCIe EP driver
  PCI: rockchip: Add EP driver for Rockchip PCIe controller
  dt-bindings: PCI: rockchip: Rename rockchip-pcie.txt to rockchip-pcie-host.txt
  PCI: rockchip: Split out common function to init controller
  PCI: rockchip: Split out rockchip_pcie_parse_dt() to parse DT
  PCI: rockchip: Separate common code from RC driver

# Conflicts:
#	drivers/pci/host/pcie-rockchip.c
2018-06-06 16:10:43 -05:00
Bjorn Helgaas 1c2bef0a3f Merge branch 'lorenzo/pci/rcar'
- clean up clocks, MSI, IRQ mappings in R-Car probe failure paths (Marek
    Vasut)

  - poll more frequently (5us vs 5ms) while waiting for R-Car data link
    active (Marek Vasut)

  - use generic OF parsing interface in R-Car (Vladimir Zapolskiy)

  - add R-Car V3H (R8A77980) "compatible" string (Sergei Shtylyov)

  - add R-Car gen3 PHY support (Sergei Shtylyov)

  - improve R-Car PHYRDY polling (Sergei Shtylyov)

  - clean up R-Car macros (Marek Vasut)

  - use runtime PM for R-Car controller clock (Dien Pham)

* lorenzo/pci/rcar:
  PCI: rcar: Remove IRQ mappings in rcar_pcie_enable_msi() failpath
  PCI: rcar: Teardown MSI setup if rcar_pcie_enable() fails
  PCI: rcar: Add missing irq_dispose_mapping() into failpath
  PCI: rcar: Pull bus clock enable/disable from rcar_pcie_get_resources()
  PCI: rcar: Poll more often in rcar_pcie_wait_for_dl()
  PCI: rcar: Reuse generic pci_parse_request_of_pci_ranges() function
  DT: pci: rcar-pci: document R8A77980 bindings
  PCI: rcar: Factor out rcar_pcie_hw_init() call
  PCI: rcar: Add R-Car gen3 PHY support
  PCI: rcar: Remove PHYRDY polling from rcar_pcie_hw_init_h1()
  PCI: rcar: Poll PHYRDY in rcar_pcie_hw_init()
  PCI: rcar: Clean up the macros
  PCI: rcar: Use runtime PM to control controller clock

# Conflicts:
#	drivers/pci/host/pcie-rcar.c
2018-06-06 16:10:41 -05:00
Bjorn Helgaas 93763ee651 Merge branch 'pci/host/mobiveil'
- add Mobiveil PCIe host controller driver (Subrahmanya Lingappa)

  - add Mobiveil MSI support (Subrahmanya Lingappa)

* pci/host/mobiveil:
  PCI: mobiveil: Add MSI support
  PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver
  PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver DT bindings
2018-06-06 16:10:38 -05:00
Bjorn Helgaas f03c7aa459 Merge branch 'lorenzo/pci/dwc'
- reduce Keystone "link already up" log level (Fabio Estevam)

  - move private DT functions to drivers/pci/ (Rob Herring)

  - factor out dwc CONFIG_PCI Kconfig dependencies (Rob Herring)

  - add DesignWare support to the endpoint test driver (Gustavo Pimentel)

  - add DesignWare support for endpoint mode (Gustavo Pimentel)

  - use devm_ioremap_resource() instead of devm_ioremap() in dra7xx and
    artpec6 (Gustavo Pimentel)

  - fix Qualcomm bitwise NOT issue (Dan Carpenter)

  - add Qualcomm runtime PM support (Srinivas Kandagatla)

* lorenzo/pci/dwc:
  PCI: qcom: add runtime pm support to pcie_port
  PCI: qcom: Fix a bitwise vs logical NOT typo
  PCI: dwc: dra7xx: Use devm_ioremap_resource() instead of devm_ioremap()
  PCI: dwc: artpec6: Use devm_ioremap_resource() instead of devm_ioremap()
  misc: pci_endpoint_test: Add DesignWare EP entry
  dt-bindings: PCI: designware: Add support for EP in DesignWare driver
  PCI: dwc: Add support for EP mode
  dt-bindings: PCI: designware: Example update
  PCI: Move private DT related functions into private header
  PCI: dwc: Move CONFIG_PCI depends to menu
  PCI: dwc: Replace magic number by defines
  PCI: dwc: Small computation improvement
  PCI: dwc: Replace lower into upper case characters
  PCI: dwc: Define maximum number of vectors
  PCI: imx6: Remove space before tabs
  PCI: keystone: Do not treat link up message as error

# Conflicts:
#	include/linux/of_pci.h
2018-06-06 16:10:27 -05:00
Bjorn Helgaas bdc4bb1377 Merge branch 'lorenzo/pci/armada8k'
- enable register clock for Armada 7K/8K (Gregory CLEMENT)

* lorenzo/pci/armada8k:
  PCI: armada8k: Fix clock resource by adding a register clock
  PCI: armada8k: Remove useless test before clk_disable_unprepare()
2018-06-06 16:10:24 -05:00
Subrahmanya Lingappa 92f9ccca4c PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver DT bindings
Add DT bindings for the Mobiveil PCIe Host Bridge IP driver and update the
vendor prefixes file.

Signed-off-by: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
2018-05-30 10:33:55 -05:00
Gustavo Pimentel 71918e24cb dt-bindings: PCI: designware: Add support for EP in DesignWare driver
Add device tree binding documentation for the EP in PCIe DesignWare driver.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-05-15 15:54:11 +01:00
Gustavo Pimentel 467c7a7376 dt-bindings: PCI: designware: Example update
Replace "ctrlreg" reg-name by "dbi" to be coherent with similar drivers,
however it still be compatible with any previous DT that uses the old
reg-name.

Replace the PCIe base address example by a real PCIe base address in use.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-05-15 15:49:52 +01:00
Shawn Lin 1dca7a6369 dt-bindings: PCI: rockchip: Add DT bindings for Rockchip PCIe EP driver
This patch documents the DT bindings for the Rockchip PCIe controller
when configured in EP mode.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-05-11 10:36:15 +01:00
Shawn Lin 2ca25bd747 dt-bindings: PCI: rockchip: Rename rockchip-pcie.txt to rockchip-pcie-host.txt
Make it more obvious that this documentation is referenced for
adding the Rockchip PCIe controller as RC mode.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-05-10 12:09:16 +01:00
Sergei Shtylyov 2a291ead5e DT: pci: rcar-pci: document R8A77980 bindings
Document the R-Car V3H (R8A77980) SoC in the R-Car PCIe bindings.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-05-04 10:32:11 +01:00
Sergei Shtylyov 517ca93a71 PCI: rcar: Add R-Car gen3 PHY support
On R-Car gen3 SoCs the PCIe PHY has its own register region, thus we
need to add the corresponding code in rcar_pcie_hw_init_gen3() and call
devm_phy_optional_get() at the driver's probing time, so that the
existing R-Car gen3 device trees (not having a PHY node) would still
work (we only need to power up the PHY on R-Car V3H).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-05-04 10:21:15 +01:00
Rob Herring 304a39b4bc dt-bindings: more status property removal from examples
Whack-a-mole some more occurrences of status in examples.

Acked-by: Vinod Koul <vinod.koul@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Tanmay Inamdar <tinamdar@apm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2018-04-18 08:56:22 -05:00
Bjorn Helgaas df25d407af Merge branch 'lorenzo/pci/rcar'
* lorenzo/pci/rcar:
  dt-bindings: PCI: rcar: Add device tree support for r8a7743
  PCI: rcar-gen2: Remove duplicated bit-wise or of RCAR_PCI_INT_SIGRETABORT
2018-04-04 13:28:52 -05:00
Bjorn Helgaas 11ee090552 Merge branch 'lorenzo/pci/mediatek'
* lorenzo/pci/mediatek:
  dt-bindings: PCI: MediaTek: fix dtc warnings
2018-04-04 13:28:51 -05:00
Gregory CLEMENT 2435cdd0c3 PCI: armada8k: Fix clock resource by adding a register clock
On Armada 7K/8K we need to explicitly enable the register clock. This
clock is optional because not all the SoCs using this IP need it but at
least for Armada 7K/8K it is actually mandatory.

The binding documentation is updated accordingly.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2018-03-08 15:23:47 +00:00
Shawn Guo 58dfb24349 PCI: histb: Add an optional regulator for PCIe port power control
The power supplies to PCIe port are often controlled by GPIO on some board
designs.  Let's add an optional regulator which can be backed by GPIO to
control the power.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2018-03-07 16:24:27 +00:00
Srinivas Kandagatla f625b1ade2 PCI: qcom: Add missing supplies required for msm8996
This patch adds supplies that are required for msm8996. vdda
is analog supply that go in to controller, and vddpe_3v3 is
supply to PCIe endpoint.

Without these supplies PCIe endpoints which require power supplies are
not enumerated at all, as there is no one to power it up.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-03-07 16:24:26 +00:00
Biju Das 2380ca5f1f dt-bindings: PCI: rcar: Add device tree support for r8a7743
Add support for r8a7743. The Renesas RZ/G1M(R8A7743)PCIe controller
is identical to the R-Car Gen2 family.

No driver change is needed due to the fallback compatible value
"renesas,pcie-rcar-gen2".
Adding the SoC-specific compatible values here has three purposes:
1. Document which SoCs have this hardware module,
2. Allow checkpatch to validate compatible values.
3. Allow the driver to support SoC specific implementations in future
   as necessary.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
2018-03-06 17:34:46 +00:00
Ryder Lee af7b9b7983 dt-bindings: PCI: MediaTek: fix dtc warnings
dtc recently added PCI bus checks. Fix these warnings:

Warning (pci_bridge): Node /pcie@1a140000/pcie@0,0 missing bus-range for PCI bridge
Warning (pci_bridge): Node /pcie@1a140000/pcie@1,0 missing bus-range for PCI bridge
Warning (pci_bridge): Node /pcie@1a140000/pcie@2,0 missing bus-range for PCI bridge
Warning (unit_address_format): Failed prerequisite 'pci_bridge'
Warning (pci_device_reg): Failed prerequisite 'pci_bridge'
Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-03-01 14:43:28 +00:00
Linus Torvalds 105cf3c8c6 pci-v4.16-changes
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Merge tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - skip AER driver error recovery callbacks for correctable errors
   reported via ACPI APEI, as we already do for errors reported via the
   native path (Tyler Baicar)

 - fix DPC shared interrupt handling (Alex Williamson)

 - print full DPC interrupt number (Keith Busch)

 - enable DPC only if AER is available (Keith Busch)

 - simplify DPC code (Bjorn Helgaas)

 - calculate ASPM L1 substate parameter instead of hardcoding it (Bjorn
   Helgaas)

 - enable Latency Tolerance Reporting for ASPM L1 substates (Bjorn
   Helgaas)

 - move ASPM internal interfaces out of public header (Bjorn Helgaas)

 - allow hot-removal of VGA devices (Mika Westerberg)

 - speed up unplug and shutdown by assuming Thunderbolt controllers
   don't support Command Completed events (Lukas Wunner)

 - add AtomicOps support for GPU and Infiniband drivers (Felix Kuehling,
   Jay Cornwall)

 - expose "ari_enabled" in sysfs to help NIC naming (Stuart Hayes)

 - clean up PCI DMA interface usage (Christoph Hellwig)

 - remove PCI pool API (replaced with DMA pool) (Romain Perier)

 - deprecate pci_get_bus_and_slot(), which assumed PCI domain 0 (Sinan
   Kaya)

 - move DT PCI code from drivers/of/ to drivers/pci/ (Rob Herring)

 - add PCI-specific wrappers for dev_info(), etc (Frederick Lawler)

 - remove warnings on sysfs mmap failure (Bjorn Helgaas)

 - quiet ROM validation messages (Alex Deucher)

 - remove redundant memory alloc failure messages (Markus Elfring)

 - fill in types for compile-time VGA and other I/O port resources
   (Bjorn Helgaas)

 - make "pci=pcie_scan_all" work for Root Ports as well as Downstream
   Ports to help AmigaOne X1000 (Bjorn Helgaas)

 - add SPDX tags to all PCI files (Bjorn Helgaas)

 - quirk Marvell 9128 DMA aliases (Alex Williamson)

 - quirk broken INTx disable on Ceton InfiniTV4 (Bjorn Helgaas)

 - fix CONFIG_PCI=n build by adding dummy pci_irqd_intx_xlate() (Niklas
   Cassel)

 - use DMA API to get MSI address for DesignWare IP (Niklas Cassel)

 - fix endpoint-mode DMA mask configuration (Kishon Vijay Abraham I)

 - fix ARTPEC-6 incorrect IS_ERR() usage (Wei Yongjun)

 - add support for ARTPEC-7 SoC (Niklas Cassel)

 - add endpoint-mode support for ARTPEC (Niklas Cassel)

 - add Cadence PCIe host and endpoint controller driver (Cyrille
   Pitchen)

 - handle multiple INTx status bits being set in dra7xx (Vignesh R)

 - translate dra7xx hwirq range to fix INTD handling (Vignesh R)

 - remove deprecated Exynos PHY initialization code (Jaehoon Chung)

 - fix MSI erratum workaround for HiSilicon Hip06/Hip07 (Dongdong Liu)

 - fix NULL pointer dereference in iProc BCMA driver (Ray Jui)

 - fix Keystone interrupt-controller-node lookup (Johan Hovold)

 - constify qcom driver structures (Julia Lawall)

 - rework Tegra config space mapping to increase space available for
   endpoints (Vidya Sagar)

 - simplify Tegra driver by using bus->sysdata (Manikanta Maddireddy)

 - remove PCI_REASSIGN_ALL_BUS usage on Tegra (Manikanta Maddireddy)

 - add support for Global Fabric Manager Server (GFMS) event to
   Microsemi Switchtec switch driver (Logan Gunthorpe)

 - add IDs for Switchtec PSX 24xG3 and PSX 48xG3 (Kelvin Cao)

* tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
  PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller
  dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller
  PCI: endpoint: Fix EPF device name to support multi-function devices
  PCI: endpoint: Add the function number as argument to EPC ops
  PCI: cadence: Add host driver for Cadence PCIe controller
  dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller
  PCI: Add vendor ID for Cadence
  PCI: Add generic function to probe PCI host controllers
  PCI: generic: fix missing call of pci_free_resource_list()
  PCI: OF: Add generic function to parse and allocate PCI resources
  PCI: Regroup all PCI related entries into drivers/pci/Makefile
  PCI/DPC: Reformat DPC register definitions
  PCI/DPC: Add and use DPC Status register field definitions
  PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error()
  PCI/DPC: Remove unnecessary RP PIO register structs
  PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info()
  PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info()
  PCI/DPC: Make RP PIO log size check more generic
  PCI/DPC: Rename local "status" to "dpc_status"
  PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error()
  ...
2018-02-06 09:59:40 -08:00
Bjorn Helgaas 16093362d6 Merge remote-tracking branch 'lorenzo/pci/dwc' into next
* lorenzo/pci/dwc:
  PCI: exynos: Fix a potential init_clk_resources NULL pointer dereference
  PCI: iproc: Fix NULL pointer dereference for BCMA
  PCI: dra7xx: Iterate over INTx status bits
  PCI: dra7xx: Fix legacy INTD IRQ handling
  PCI: qcom: Account for const type of of_device_id.data
  PCI: dwc: artpec6: Fix return value check in artpec6_add_pcie_ep()
  PCI: exynos: Remove deprecated PHY initialization code
  PCI: dwc: artpec6: Add support for the ARTPEC-7 SoC
  bindings: PCI: artpec: Add support for the ARTPEC-7 SoC
  PCI: dwc: artpec6: Deassert the core before waiting for PHY
  PCI: dwc: Make cpu_addr_fixup take struct dw_pcie as argument
  PCI: dwc: artpec6: Add support for endpoint mode
  bindings: PCI: artpec: Add support for endpoint mode
  PCI: dwc: artpec6: Split artpec6_pcie_establish_link() into smaller functions
  PCI: dwc: artpec6: Use BIT and GENMASK macros
  PCI: dwc: artpec6: Remove unused defines
  PCI: dwc: dra7xx: Help compiler to remove unused code
  PCI: dwc: dra7xx: Assign pp->ops in dra7xx_add_pcie_port() rather than in probe
  PCI: dwc: dra7xx: Refactor Kconfig and Makefile handling for host/ep mode
  PCI: designware-ep: Add generic function for raising MSI irq
  PCI: designware-ep: Remove static keyword from dw_pcie_ep_reset_bar()
  PCI: designware-ep: Pre-allocate memory for MSI in dw_pcie_ep_init
  PCI: designware-ep: Read-only registers need DBI_RO_WR_EN to be writable
  PCI: designware-ep: dw_pcie_ep_set_msi() should only set MMC bits
  PCI: dwc: Use the DMA-API to get the MSI address
  pci: dwc: pci-dra7xx: Make shutdown handler static

Includes resolution to conflict between:

  4494738de0 ("PCI: endpoint: Add the function number as argument to EPC ops")
  6f6d787371 ("PCI: designware-ep: Add generic function for raising MSI irq")

The resolution is due to Niklas Cassel <niklas.cassel@axis.com>:
https://lkml.kernel.org/r/20180201085608.GA22568@axis.com
2018-02-01 11:36:07 -06:00
Cyrille Pitchen 6618f4d3f5 dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller
This patch documents the DT bindings for the Cadence PCIe controller
when configured in endpoint mode.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-01-31 11:10:55 +00:00
Scott Telford 2040fae4b2 dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller
This patch adds documentation for the DT bindings of the Cadence PCIe
controller when configured in host (Root Complex) mode.

Signed-off-by: Scott Telford <stelford@cadence.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-01-31 11:10:10 +00:00
Jaehoon Chung 83f4f3f63b PCI: exynos: Remove deprecated PHY initialization code
Exynos platforms have a PCI PHY driver in the PHY framework that can be
used by the PCI host bridge drivers to initialize and manage the PHY.

Remove the deprecated PHY initialization code in the Exynos PCI host
bridge driver by updating the driver to use the PHY framework API;
modify the DT binding documentation accordingly.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2018-01-02 16:27:52 +00:00