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Author SHA1 Message Date
Rob Herring
fe3f70eec4 dt-bindings: PCI: apple: Add missing 'power-domains' property
The 'unevaluatedProperties' schema checks is not fully working and doesn't
catch some cases where there's a $ref to another schema. A fix is pending,
but results in new warnings in examples.

The Apple PCIe host schema is missing 'power-domains' in the schema.
The example has 3 power domains. However, this is wrong too as actual
dts files have a single power domain and Sven confirmed 1 is correct.

Cc: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20220531215815.2408477-1-robh@kernel.org
2022-06-02 10:08:47 -05:00
Bharat Kumar Gogada
e2c6170a55 dt-bindings: PCI: xilinx-cpm: Fix reg property order
All existing vendor DTSes are using "cpm_slcr" reg followed by "cfg" reg.

This order is also suggested by node name which is pcie@fca10000 which
suggests that cpm_slcr register should be the first.

Driver itself is using devm_platform_ioremap_resource_byname() for both
names that's why there is no functional change even on description which
are using current order.

But still prefer to change order to cover currently used description.
Fixes: e22fadb1d0 ("PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port")

Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220516102217.25960-1-bharat.kumar.gogada@xilinx.com
2022-06-01 14:55:18 -05:00
Rob Herring
bcd7ec2cd7 dt-bindings: PCI: socionext,uniphier-pcie: Add missing child interrupt controller
The Socionext interrupt controller internal to the the PCI block isn't
documented which causes warnings when unevaluatedProperties check is
also fixed. Add the 'interrupt-controller' child node and properties and
fixup the example so that interrupt properties can be parsed.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20220525210117.2489333-1-robh@kernel.org
2022-05-31 21:25:11 -05:00
Linus Torvalds
3cc30140db pci-v5.19-changes
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Merge tag 'pci-v5.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Resource management:

   - Restrict E820 clipping to PCI host bridge windows (Bjorn Helgaas)

   - Log E820 clipping better (Bjorn Helgaas)

   - Add kernel cmdline options to enable/disable E820 clipping (Hans de
     Goede)

   - Disable E820 reserved region clipping for IdeaPads, Yoga, Yoga
     Slip, Acer Spin 5, Clevo Barebone systems where clipping leaves no
     usable address space for touchpads, Thunderbolt devices, etc (Hans
     de Goede)

   - Disable E820 clipping by default starting in 2023 (Hans de Goede)

  PCI device hotplug:

   - Include files to remove implicit dependencies (Christophe Leroy)

   - Only put Root Ports in D3 if they can signal and wake from D3 so
     AMD Yellow Carp doesn't miss hotplug events (Mario Limonciello)

  Power management:

   - Define pci_restore_standard_config() only for CONFIG_PM_SLEEP since
     it's unused otherwise (Krzysztof Kozlowski)

   - Power up devices completely, including anything platform firmware
     needs to do, during runtime resume (Rafael J. Wysocki)

   - Move pci_resume_bus() to PM callbacks so we observe the required
     bridge power-up delays (Rafael J. Wysocki)

   - Drop unneeded runtime_d3cold device flag (Rafael J. Wysocki)

   - Split pci_raw_set_power_state() between pci_power_up() and a new
     pci_set_low_power_state() (Rafael J. Wysocki)

   - Set current_state to D3cold if config read returns ~0, indicating
     the device is not accessible (Rafael J. Wysocki)

   - Do not call pci_update_current_state() from pci_power_up() so BARs
     and ASPM config are restored correctly (Rafael J. Wysocki)

   - Write 0 to PMCSR in pci_power_up() in all cases (Rafael J. Wysocki)

   - Split pci_power_up() to pci_set_full_power_state() to avoid some
     redundant operations (Rafael J. Wysocki)

   - Skip restoring BARs if device is not in D0 (Rafael J. Wysocki)

   - Rearrange and clarify pci_set_power_state() (Rafael J. Wysocki)

   - Remove redundant BAR restores from pci_pm_thaw_noirq() (Rafael J.
     Wysocki)

  Virtualization:

   - Acquire device lock before config space access lock to avoid AB/BA
     deadlock with sriov_numvfs_store() (Yicong Yang)

  Error handling:

   - Clear MULTI_ERR_COR/UNCOR_RCV bits, which a race could previously
     leave permanently set (Kuppuswamy Sathyanarayanan)

  Peer-to-peer DMA:

   - Whitelist Intel Skylake-E Root Ports regardless of which devfn they
     are (Shlomo Pongratz)

  ASPM:

   - Override L1 acceptable latency advertised by Intel DG2 so ASPM L1
     can be enabled (Mika Westerberg)

  Cadence PCIe controller driver:

   - Set up device-specific register to allow PTM Responder to be
     enabled by the normal architected bit (Christian Gmeiner)

   - Override advertised FLR support since the controller doesn't
     implement FLR correctly (Parshuram Thombare)

  Cadence PCIe endpoint driver:

   - Correct bitmap size for the ob_region_map of outbound window usage
     (Dan Carpenter)

  Freescale i.MX6 PCIe controller driver:

   - Fix PERST# assertion/deassertion so we observe the required delays
     before accessing device (Francesco Dolcini)

  Freescale Layerscape PCIe controller driver:

   - Add "big-endian" DT property (Hou Zhiqiang)

   - Update SCFG DT property (Hou Zhiqiang)

   - Add "aer", "pme", "intr" DT properties (Li Yang)

   - Add DT compatible strings for ls1028a (Xiaowei Bao)

  Intel VMD host bridge driver:

   - Assign VMD IRQ domain before enumeration to avoid IOMMU interrupt
     remapping errors when MSI-X remapping is disabled (Nirmal Patel)

   - Revert VMD workaround that kept MSI-X remapping enabled when IOMMU
     remapping was enabled (Nirmal Patel)

  Marvell MVEBU PCIe controller driver:

   - Add of_pci_get_slot_power_limit() to parse the
     'slot-power-limit-milliwatt' DT property (Pali Rohár)

   - Add mvebu support for sending Set_Slot_Power_Limit message (Pali
     Rohár)

  MediaTek PCIe controller driver:

   - Fix refcount leak in mtk_pcie_subsys_powerup() (Miaoqian Lin)

  MediaTek PCIe Gen3 controller driver:

   - Reset PHY and MAC at probe time (AngeloGioacchino Del Regno)

  Microchip PolarFlare PCIe controller driver:

   - Add chained_irq_enter()/chained_irq_exit() calls to mc_handle_msi()
     and mc_handle_intx() to avoid lost interrupts (Conor Dooley)

   - Fix interrupt handling race (Daire McNamara)

  NVIDIA Tegra194 PCIe controller driver:

   - Drop tegra194 MSI register save/restore, which is unnecessary since
     the DWC core does it (Jisheng Zhang)

  Qualcomm PCIe controller driver:

   - Add SM8150 SoC DT binding and support (Bhupesh Sharma)

   - Fix pipe clock imbalance (Johan Hovold)

   - Fix runtime PM imbalance on probe errors (Johan Hovold)

   - Fix PHY init imbalance on probe errors (Johan Hovold)

   - Convert DT binding to YAML (Dmitry Baryshkov)

   - Update DT binding to show that resets aren't required for
     MSM8996/APQ8096 platforms (Dmitry Baryshkov)

   - Add explicit register names per chipset in DT binding (Dmitry
     Baryshkov)

   - Add sc7280-specific clock and reset definitions to DT binding
     (Dmitry Baryshkov)

  Rockchip PCIe controller driver:

   - Fix bitmap size when searching for free outbound region (Dan
     Carpenter)

  Rockchip DesignWare PCIe controller driver:

   - Remove "snps,dw-pcie" from rockchip-dwc DT "compatible" property
     because it's not fully compatible with rockchip (Peter Geis)

   - Reset rockchip-dwc controller at probe (Peter Geis)

   - Add rockchip-dwc INTx support (Peter Geis)

  Synopsys DesignWare PCIe controller driver:

   - Return error instead of success if DMA mapping of MSI area fails
     (Jiantao Zhang)

  Miscellaneous:

   - Change pci_set_dma_mask() documentation references to
     dma_set_mask() (Alex Williamson)"

* tag 'pci-v5.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (64 commits)
  dt-bindings: PCI: qcom: Add schema for sc7280 chipset
  dt-bindings: PCI: qcom: Specify reg-names explicitly
  dt-bindings: PCI: qcom: Do not require resets on msm8996 platforms
  dt-bindings: PCI: qcom: Convert to YAML
  PCI: qcom: Fix unbalanced PHY init on probe errors
  PCI: qcom: Fix runtime PM imbalance on probe errors
  PCI: qcom: Fix pipe clock imbalance
  PCI: qcom: Add SM8150 SoC support
  dt-bindings: pci: qcom: Document PCIe bindings for SM8150 SoC
  x86/PCI: Disable E820 reserved region clipping starting in 2023
  x86/PCI: Disable E820 reserved region clipping via quirks
  x86/PCI: Add kernel cmdline options to use/ignore E820 reserved regions
  PCI: microchip: Fix potential race in interrupt handling
  PCI/AER: Clear MULTI_ERR_COR/UNCOR_RCV bits
  PCI: cadence: Clear FLR in device capabilities register
  PCI: cadence: Allow PTM Responder to be enabled
  PCI: vmd: Revert 2565e5b69c ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.")
  PCI: vmd: Assign VMD IRQ domain before enumeration
  PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store()
  PCI: rockchip-dwc: Add legacy interrupt support
  ...
2022-05-27 15:25:10 -07:00
Bjorn Helgaas
ba3527d8ff Merge branch 'pci/host/qcom'
- Add SM8150 SoC DT binding and support (Bhupesh Sharma)

- Fix pipe clock imbalance (Johan Hovold)

- Fix runtime PM imbalance on probe errors (Johan Hovold)

- Fix PHY init imbalance on probe errors (Johan Hovold)

- Convert DT binding to YAML (Dmitry Baryshkov)

- Update DT binding to show that resets aren't required for MSM8996/APQ8096
  platforms (Dmitry Baryshkov)

- Add explicit register names per chipset in DT binding (Dmitry Baryshkov)

- Add sc7280-specific clock and reset definitions to DT binding (Dmitry
  Baryshkov)

* pci/host/qcom:
  dt-bindings: PCI: qcom: Add schema for sc7280 chipset
  dt-bindings: PCI: qcom: Specify reg-names explicitly
  dt-bindings: PCI: qcom: Do not require resets on msm8996 platforms
  dt-bindings: PCI: qcom: Convert to YAML
  PCI: qcom: Fix unbalanced PHY init on probe errors
  PCI: qcom: Fix runtime PM imbalance on probe errors
  PCI: qcom: Fix pipe clock imbalance
  PCI: qcom: Add SM8150 SoC support
  dt-bindings: pci: qcom: Document PCIe bindings for SM8150 SoC
2022-05-24 16:42:26 -05:00
Bjorn Helgaas
8d8270069c Merge branch 'remotes/lorenzo/pci/layerscape'
- Add a "big-endian" DT property to indicate that the PEX_LUT and PF
  register blocks are implemented in big-endian (Hou Zhiqiang)

- Add EP mode compatible strings for ls1028a (Xiaowei Bao)

- Define DT properties for AER/PME interrupts (Li Yang)

* remotes/lorenzo/pci/layerscape:
  dt-bindings: pci: layerscape-pci: define AER/PME interrupts
  dt-bindings: pci: layerscape-pci: Add EP mode compatible strings for ls1028a
  dt-bindings: pci: layerscape-pci: Update the description of SCFG property
  dt-bindings: pci: layerscape-pci: Add a optional property big-endian
2022-05-24 16:42:24 -05:00
Dmitry Baryshkov
3f467d122f dt-bindings: PCI: qcom: Add schema for sc7280 chipset
Add support for sc7280-specific clock and reset definitions.

Link: https://lore.kernel.org/r/20220506152107.1527552-5-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
2022-05-24 16:41:55 -05:00
Dmitry Baryshkov
c6523c4a30 dt-bindings: PCI: qcom: Specify reg-names explicitly
Instead of specifying the enum of possible reg-names, specify them
explicitly. This allows us to specify which chipsets need the "atu"
regions and which do not. Also it clearly describes which platforms
enumerate PCIe cores using the dbi region and which use parf region for
that.

Link: https://lore.kernel.org/r/20220506152107.1527552-4-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
2022-05-24 16:41:38 -05:00
Dmitry Baryshkov
6700a9b00f dt-bindings: PCI: qcom: Do not require resets on msm8996 platforms
On MSM8996/APQ8096 platforms the PCIe controller doesn't have any
resets. So move the requirement stanza under the corresponding if
condition.

Link: https://lore.kernel.org/r/20220506152107.1527552-3-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
2022-05-24 16:41:10 -05:00
Dmitry Baryshkov
075a9d5593 dt-bindings: PCI: qcom: Convert to YAML
Changes to the schema:
 - Fixed the ordering of clock-names/reset-names according to
   the dtsi files.
 - Mark vdda-supply as required only for apq/ipq8064 (as it was marked
   as generally required in the txt file).

Changes to examples:
 - Inline clock and reset numbers rather than including dt-bindings
   files because of conflicts between the headers
 - Split ranges and reg properties to follow current practice
 - Change -gpio to -gpios
 - Update IRQ flags to LEVEL_HIGH rater than NONE
 - Removed extra "snps,dw-pcie" compatibility.

Note: while it was not clearly described in text schema, the majority of
Qualcomm platforms follow the snps,dw-pcie schema and use two
compatibility strings in the DT files: platform-specific one and a
fallback to the generic snps,dw-pcie one. However the platform itself is
not compatible with the snps,dw-pcie interface, so we are going to
remove it.

Link: https://lore.kernel.org/r/20220506152107.1527552-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
2022-05-24 16:41:10 -05:00
Bhupesh Sharma
a6e25b39ad dt-bindings: pci: qcom: Document PCIe bindings for SM8150 SoC
Document the PCIe DT bindings for SM8150 SoC. The PCIe IP is similar to
the one used on SM8250.

Link: https://lore.kernel.org/r/20220326060810.1797516-2-bhupesh.sharma@linaro.org
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
2022-05-24 16:35:50 -05:00
Rob Herring
4e71ed9853 dt-bindings: Fix properties without any type
Now that the schema tools can extract type information for all
properties (in order to decode dtb files), finding properties missing
any type definition is fairly trivial though not yet automated.

Fix the various property schemas which are missing a type. Most of these
tend to be device specific properties which don't have a vendor prefix.
A vendor prefix is how we normally ensure a type is defined.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org> # for everything in .../bindings/display/
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Peter Rosin <peda@axentia.se>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20220519211411.2200720-1-robh@kernel.org
2022-05-23 11:53:30 -05:00
Peter Geis
931262e646 dt-bindings: PCI: Remove fallback from Rockchip DesignWare binding
The snps,dw-pcie binds to a standalone driver. It is not fully
compatible with the Rockchip implementation and causes a hang if it
binds to the device.

Remove this binding as a valid fallback.

Link: https://lore.kernel.org/r/20220429123832.2376381-2-pgwipeout@gmail.com
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2022-05-11 16:01:25 +01:00
Rob Herring
52bf4b7147 Merge branch 'dt/linus' into dt/next
Pick up new meta-schema fixes.
2022-05-09 11:50:27 -05:00
Hector Martin
5dc4630426 dt-bindings: pci: apple,pcie: Drop max-link-speed from example
We no longer use these since 111659c2a5 (and they never worked
anyway); drop them from the example to avoid confusion.

Fixes: 111659c2a5 ("arm64: dts: apple: t8103: Remove PCIe max-link-speed properties")
Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220502091308.28233-1-marcan@marcan.st
2022-05-04 17:18:27 -05:00
Li Yang
a3b18f5f1d dt-bindings: pci: layerscape-pci: define AER/PME interrupts
Different platforms using this controller are using different numbers of
interrupt lines and the routing of events to these interrupt lines are
different too.  So instead of trying to define names for these interrupt
lines, we define the more specific AER/PME events that are routed to
these interrupt lines.

For platforms which only has a single interrupt line for miscellaneous
controller events, we can keep using the original "intr" name for
backward compatibility.

Also change the example from ls1021a to ls1088a for better representation.

Link: https://lore.kernel.org/r/20220311234938.8706-5-leoyang.li@nxp.com
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2022-04-08 12:35:21 +01:00
Xiaowei Bao
cddc1a9ab3 dt-bindings: pci: layerscape-pci: Add EP mode compatible strings for ls1028a
Add EP mode compatible string for ls1028a.

Link: https://lore.kernel.org/r/20220311234938.8706-4-leoyang.li@nxp.com
Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2022-04-08 12:35:21 +01:00
Hou Zhiqiang
84f293b204 dt-bindings: pci: layerscape-pci: Update the description of SCFG property
Update the description of the second entry of 'fsl,pcie-scfg' property,
as the LS1043A PCIe controller also has some control registers in SCFG
block, while it has 3 controllers.

Link: https://lore.kernel.org/r/20220311234938.8706-3-leoyang.li@nxp.com
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2022-04-08 12:35:21 +01:00
Hou Zhiqiang
6c389328c9 dt-bindings: pci: layerscape-pci: Add a optional property big-endian
This property is to indicate the endianness when accessing the
PEX_LUT and PF register block, so if these registers are
implemented in big-endian, specify this property.

Link: https://lore.kernel.org/r/20220311234938.8706-2-leoyang.li@nxp.com
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2022-04-08 12:35:21 +01:00
Kunihiko Hayashi
d9a64c5eb0 dt-bindings: PCI: uniphier: Convert uniphier-pcie.txt to json-schema
Convert the file into a JSON description at the yaml format.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1648617814-9217-2-git-send-email-hayashi.kunihiko@socionext.com
2022-04-04 19:55:02 -05:00
Linus Torvalds
9512433987 There's one large change in the core clk framework here. We change how
clk_set_rate_range() works so that the frequency is re-evaulated each time the
 rate is changed. Previously we wouldn't let clk providers see a rate that was
 different if it was still within the range, which could be bad for power if the
 clk could run slower when a range expands. Now the clk provider can decide to
 do something differently when the constraints change. This broke Nvidia's clk
 driver so we had to wait for the fix for that to bake a little more in -next.
 
 The rate range patch series also introduced a kunit suite for the clk framework
 that we're going to extend in the next release. It already made it easy to find
 corner cases in the rate range patches so I'm excited to see it cover more clk
 code and increase our confidence in core framework patches in the future. I
 also added a kunit test for the basic clk gate code and that work will continue
 to cover more basic clk types: muxes, dividers, etc.
 
 Beyond the core code we have the usual set of clk driver updates and additions.
 Qualcomm again dominates the diffstat here with lots more SoCs being supported
 and i.MX follows afer that with a similar number of SoCs gaining clk drivers.
 Beyond those large additions there's drivers being modernized to use
 clk_parent_data so we can move away from global string names for all the clks
 in an SoC. Finally there's lots of little fixes all over the clk drivers for
 typos, warnings, and missing clks that aren't critical and get batched up
 waiting for the next merge window to open. Nothing super big stands out in the
 driver pile. Full details are below.
 
 Core:
  - Make clk_set_rate_range() re-evaluate the limits each time
  - Introduce various clk_set_rate_range() tests
  - Add clk_drop_range() to drop a previously set range
 
 New Drivers:
  - i.MXRT1050 clock driver and bindings
  - i.MX8DXL clock driver and bindings
  - i.MX93 clock driver and bindings
  - NCO blocks on Apple SoCs
  - Audio clks on StarFive JH7100 RISC-V SoC
  - Add support for the new Renesas RZ/V2L SoC
  - Qualcomm SDX65 A7 PLL
  - Qualcomm SM6350 GPU clks
  - Qualcomm SM6125, SM6350, QCS2290 display clks
  - Qualcomm MSM8226 multimedia clks
 
 Updates:
  - Kunit tests for clk-gate implementation
  - Terminate arrays with sentinels and make that clearer
  - Cleanup SPDX tags
  - Fix typos in comments
  - Mark mux table as const in clk-mux
  - Make the all_lists array const
  - Convert Cirrus Logic CS2000P driver to regmap, yamlify DT binding and add
    support for dynamic mode
  - Clock configuration on Microchip PolarFire SoCs
  - Free allocations on probe error in Mediatek clk driver
  - Modernize Mediatek clk driver by consolidating code
  - Add watchdog (WDT), I2C, and pin function controller (PFC) clocks on
    Renesas R-Car S4-8
  - Improve the clocks for the Rockchip rk3568 display outputs (parenting, pll-rates)
  - Use of_device_get_match_data() instead of open-coding on Rockchip rk3568
  - Reintroduce the expected fractional-divider behaviour that disappeared
    with the addition of CLK_FRAC_DIVIDER_POWER_OF_TWO_PS
  - Remove SYS PLL 1/2 clock gates for i.MX8M*
  - Remove AUDIO MCLK ROOT from i.MX7D
  - Add fracn gppll clock type used by i.MX93
  - Add new composite clock for i.MX93
  - Add missing media mipi phy ref clock for i.MX8MP
  - Fix off by one in imx_lpcg_parse_clks_from_dt()
  - Rework for the imx pll14xx
  - sama7g5: One low priority fix for GCLK of PDMC
  - Add DMA engine (SYS-DMAC) clocks on Renesas R-Car S4-8
  - Add MOST (MediaLB I/F) clocks on Renesas R-Car E3 and D3
  - Add CAN-FD clocks on Renesas R-Car V3U
  - Qualcomm SC8280XP RPMCC
  - Add some missing clks on Qualcomm MSM8992/MSM8994/MSM8998 SoCs
  - Rework Qualcomm GCC bindings and convert SDM845 camera bindig to YAML
  - Convert various Qualcomm drivers to use clk_parent_data
  - Remove test clocks from various Qualcomm drivers
  - Crypto engine clks on Qualcomm IPQ806x + more freqs for SDCC/NSS
  - Qualcomm SM8150 EMAC, PCIe, UFS GDSCs
  - Better pixel clk frequency support on Qualcomm RCG2 clks
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "There's one large change in the core clk framework here. We change how
  clk_set_rate_range() works so that the frequency is re-evaulated each
  time the rate is changed. Previously we wouldn't let clk providers see
  a rate that was different if it was still within the range, which
  could be bad for power if the clk could run slower when a range
  expands. Now the clk provider can decide to do something differently
  when the constraints change. This broke Nvidia's clk driver so we had
  to wait for the fix for that to bake a little more in -next.

  The rate range patch series also introduced a kunit suite for the clk
  framework that we're going to extend in the next release. It already
  made it easy to find corner cases in the rate range patches so I'm
  excited to see it cover more clk code and increase our confidence in
  core framework patches in the future. I also added a kunit test for
  the basic clk gate code and that work will continue to cover more
  basic clk types: muxes, dividers, etc.

  Beyond the core code we have the usual set of clk driver updates and
  additions. Qualcomm again dominates the diffstat here with lots more
  SoCs being supported and i.MX follows afer that with a similar number
  of SoCs gaining clk drivers. Beyond those large additions there's
  drivers being modernized to use clk_parent_data so we can move away
  from global string names for all the clks in an SoC. Finally there's
  lots of little fixes all over the clk drivers for typos, warnings, and
  missing clks that aren't critical and get batched up waiting for the
  next merge window to open. Nothing super big stands out in the driver
  pile. Full details are below.

  Core:
   - Make clk_set_rate_range() re-evaluate the limits each time
   - Introduce various clk_set_rate_range() tests
   - Add clk_drop_range() to drop a previously set range

  New Drivers:
   - i.MXRT1050 clock driver and bindings
   - i.MX8DXL clock driver and bindings
   - i.MX93 clock driver and bindings
   - NCO blocks on Apple SoCs
   - Audio clks on StarFive JH7100 RISC-V SoC
   - Add support for the new Renesas RZ/V2L SoC
   - Qualcomm SDX65 A7 PLL
   - Qualcomm SM6350 GPU clks
   - Qualcomm SM6125, SM6350, QCS2290 display clks
   - Qualcomm MSM8226 multimedia clks

  Updates:
   - Kunit tests for clk-gate implementation
   - Terminate arrays with sentinels and make that clearer
   - Cleanup SPDX tags
   - Fix typos in comments
   - Mark mux table as const in clk-mux
   - Make the all_lists array const
   - Convert Cirrus Logic CS2000P driver to regmap, yamlify DT binding
     and add support for dynamic mode
   - Clock configuration on Microchip PolarFire SoCs
   - Free allocations on probe error in Mediatek clk driver
   - Modernize Mediatek clk driver by consolidating code
   - Add watchdog (WDT), I2C, and pin function controller (PFC) clocks
     on Renesas R-Car S4-8
   - Improve the clocks for the Rockchip rk3568 display outputs
     (parenting, pll-rates)
   - Use of_device_get_match_data() instead of open-coding on Rockchip
     rk3568
   - Reintroduce the expected fractional-divider behaviour that
     disappeared with the addition of CLK_FRAC_DIVIDER_POWER_OF_TWO_PS
   - Remove SYS PLL 1/2 clock gates for i.MX8M*
   - Remove AUDIO MCLK ROOT from i.MX7D
   - Add fracn gppll clock type used by i.MX93
   - Add new composite clock for i.MX93
   - Add missing media mipi phy ref clock for i.MX8MP
   - Fix off by one in imx_lpcg_parse_clks_from_dt()
   - Rework for the imx pll14xx
   - sama7g5: One low priority fix for GCLK of PDMC
   - Add DMA engine (SYS-DMAC) clocks on Renesas R-Car S4-8
   - Add MOST (MediaLB I/F) clocks on Renesas R-Car E3 and D3
   - Add CAN-FD clocks on Renesas R-Car V3U
   - Qualcomm SC8280XP RPMCC
   - Add some missing clks on Qualcomm MSM8992/MSM8994/MSM8998 SoCs
   - Rework Qualcomm GCC bindings and convert SDM845 camera bindig to
     YAML
   - Convert various Qualcomm drivers to use clk_parent_data
   - Remove test clocks from various Qualcomm drivers
   - Crypto engine clks on Qualcomm IPQ806x + more freqs for SDCC/NSS
   - Qualcomm SM8150 EMAC, PCIe, UFS GDSCs
   - Better pixel clk frequency support on Qualcomm RCG2 clks"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (227 commits)
  clk: zynq: Update the parameters to zynq_clk_register_periph_clk
  clk: zynq: trivial warning fix
  clk: Drop the rate range on clk_put()
  clk: test: Test clk_set_rate_range on orphan mux
  clk: Initialize orphan req_rate
  dt-bindings: clock: drop useless consumer example
  dt-bindings: clock: renesas: Make example 'clocks' parsable
  clk: qcom: gcc-msm8994: Fix gpll4 width
  dt-bindings: clock: fix dt_binding_check error for qcom,gcc-other.yaml
  clk: rs9: Add Renesas 9-series PCIe clock generator driver
  clk: fixed-factor: Introduce devm_clk_hw_register_fixed_factor_index()
  clk: visconti: prevent array overflow in visconti_clk_register_gates()
  dt-bindings: clk: rs9: Add Renesas 9-series I2C PCIe clock generator
  clk: sifive: Move all stuff into SoCs header files from C files
  clk: sifive: Add SoCs prefix in each SoCs-dependent data
  riscv: dts: Change the macro name of prci in each device node
  dt-bindings: change the macro name of prci in header files and example
  clk: sifive: duplicate the macro definitions for the time being
  clk: qcom: sm6125-gcc: fix typos in comments
  clk: ti: clkctrl: fix typos in comments
  ...
2022-03-30 10:11:04 -07:00
Linus Torvalds
9bf3fc5007 Devicetree updates for v5.18:
- Add Krzysztof Kozlowski as co-maintainer for DT bindings providing
   much needed help.
 
 - DT schema validation now takes DTB files as input rather than
   intermediate YAML files. This decouples the validation from the source
   level syntax information. There's a bunch of schema fixes as a result
   of switching to DTB based validation which exposed some errors
   and incomplete schemas and examples.
 
 - Kbuild improvements to explicitly warn users running 'make
   dt_binding_check' on missing yamllint
 
 - Expand DT_SCHEMA_FILES kbuild variable to take just a partial filename
   or path instead of the full path to 1 file.
 
 - Convert various bindings to schema format: mscc,vsc7514-switch,
   multiple GNSS bindings, ahci-platform, i2c-at91, multiple UFS
   bindings, cortina,gemini-sata-bridge, cortina,gemini-ethernet, Atmel
   SHA, Atmel TDES, Atmel AES, armv7m-systick, Samsung Exynos display
   subsystem, nuvoton,npcm7xx-timer, samsung,s3c2410-i2c, zynqmp_dma,
   msm/mdp4, rda,8810pl-uart
 
 - New schemas for u-boot environment variable partition, TI clksel
 
 - New compatible strings for Renesas RZ/V2L SoC
 
 - Vendor prefixes for Xen, HPE, deprecated Synopsys, deprecated HiSilicon
 
 - Add/fix schemas for QEMU Arm 'virt' machine
 
 - Drop unused of_alias_get_alias_list() function
 
 - Add a script to check DT unittest EXPECT message output. Pass messages
   also now print by default at PR_INFO level to help test automation.
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Merge tag 'devicetree-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:

 - Add Krzysztof Kozlowski as co-maintainer for DT bindings providing
   much needed help.

 - DT schema validation now takes DTB files as input rather than
   intermediate YAML files. This decouples the validation from the
   source level syntax information. There's a bunch of schema fixes as a
   result of switching to DTB based validation which exposed some errors
   and incomplete schemas and examples.

 - Kbuild improvements to explicitly warn users running 'make
   dt_binding_check' on missing yamllint

 - Expand DT_SCHEMA_FILES kbuild variable to take just a partial
   filename or path instead of the full path to 1 file.

 - Convert various bindings to schema format: mscc,vsc7514-switch,
   multiple GNSS bindings, ahci-platform, i2c-at91, multiple UFS
   bindings, cortina,gemini-sata-bridge, cortina,gemini-ethernet, Atmel
   SHA, Atmel TDES, Atmel AES, armv7m-systick, Samsung Exynos display
   subsystem, nuvoton,npcm7xx-timer, samsung,s3c2410-i2c, zynqmp_dma,
   msm/mdp4, rda,8810pl-uart

 - New schemas for u-boot environment variable partition, TI clksel

 - New compatible strings for Renesas RZ/V2L SoC

 - Vendor prefixes for Xen, HPE, deprecated Synopsys, deprecated
   HiSilicon

 - Add/fix schemas for QEMU Arm 'virt' machine

 - Drop unused of_alias_get_alias_list() function

 - Add a script to check DT unittest EXPECT message output. Pass
   messages also now print by default at PR_INFO level to help test
   automation.

* tag 'devicetree-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (96 commits)
  dt-bindings: kbuild: Make DT_SCHEMA_LINT a recursive variable
  dt-bindings: nvmem: add U-Boot environment variables binding
  dt-bindings: ufs: qcom: Add SM6350 compatible string
  dt-bindings: dmaengine: sifive,fu540-c000: include generic schema
  dt-bindings: gpio: pca95xx: drop useless consumer example
  Revert "of: base: Introduce of_alias_get_alias_list() to check alias IDs"
  dt-bindings: virtio,mmio: Allow setting devices 'dma-coherent'
  dt-bindings: gnss: Add two more chips
  dt-bindings: gnss: Rewrite sirfstar binding in YAML
  dt-bindings: gnss: Modify u-blox to use common bindings
  dt-bindings: gnss: Rewrite common bindings in YAML
  dt-bindings: ata: ahci-platform: Add rk3568-dwc-ahci compatible
  dt-bindings: ata: ahci-platform: Add power-domains property
  dt-bindings: ata: ahci-platform: Convert DT bindings to yaml
  dt-bindings: kbuild: Use DTB files for validation
  dt-bindings: kbuild: Pass DT_SCHEMA_FILES to dt-validate
  dt-bindings: Add QEMU virt machine compatible
  dt-bindings: arm: Convert QEMU fw-cfg to DT schema
  dt-bindings: i2c: at91: Add SAMA7G5 compatible strings list
  dt-bindings: i2c: convert i2c-at91 to json-schema
  ...
2022-03-26 11:41:53 -07:00
Bjorn Helgaas
c1e10d81da Merge branch 'remotes/lorenzo/pci/uniphier'
- Add DT binding and endpoint driver support for UniPhier NX1 SoC (Kunihiko
  Hayashi)

* remotes/lorenzo/pci/uniphier:
  PCI: uniphier-ep: Add NX1 support
  PCI: uniphier-ep: Add SoC data structure
  dt-bindings: PCI: uniphier-ep: Add bindings for NX1 SoC
2022-03-22 17:16:27 -05:00
Bjorn Helgaas
0c634fcb98 Merge branch 'remotes/lorenzo/pci/qcom'
- Save pointer to device match data instead of copying it (Dmitry
  Baryshkov)

- Add ddrss_sf_tbu flag to device match data instead of checking OF
  compatible string (Dmitry Baryshkov)

- Add SM8450 SoC PCIe DT bindings (Dmitry Baryshkov)

- Add SM8450 PCIe support (Dmitry Baryshkov)

* remotes/lorenzo/pci/qcom:
  PCI: qcom: Add SM8450 PCIe support
  PCI: qcom: Add ddrss_sf_tbu flag
  PCI: qcom: Remove redundancy between qcom_pcie and qcom_pcie_cfg
  dt-bindings: pci: qcom: Document PCIe bindings for SM8450
2022-03-22 17:16:26 -05:00
Zong Li
0493692b40 dt-bindings: change the macro name of prci in header files and example
We currently change the macro name for fu540 and fu740 by adding the
prefix respectively, the dt-bindings should be modified as well.

Signed-off-by: Zong Li <zong.li@sifive.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/f9284873c2993a9952d9fe4f8dd5e89f20daab75.1646388139.git.zong.li@sifive.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-03-15 15:56:28 -07:00
Richard Zhu
9be01ee228 dt-bindings: imx6q-pcie: Add iMX8MP PCIe compatible string
Add i.MX8MP PCIe compatible string.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1646644054-24421-5-git-send-email-hongxing.zhu@nxp.com
2022-03-10 16:15:11 -06:00
Richard Zhu
21d5929ff2 dt-bindings: imx6q-pcie: Add iMX8MM PCIe compatible string
Add the i.MX8MM PCIe compatible string.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1646293805-18248-1-git-send-email-hongxing.zhu@nxp.com
2022-03-10 13:54:47 -06:00
Dmitry Baryshkov
dddb4efa51 dt-bindings: pci: qcom: Document PCIe bindings for SM8450
Document the PCIe DT bindings for SM8450 SoC. The PCIe IP is similar
to the one used on SM8250, however unlike SM8250, PCIe0 and PCIe1 use
different set of clocks, so two compatible entries are required.

Link: https://lore.kernel.org/r/20220223101435.447839-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
2022-02-23 10:56:43 +00:00
Pali Rohár
0124989220 dt-bindings: PCI: mvebu: Update information about intx interrupts
Link: https://lore.kernel.org/r/20220222155030.988-10-pali@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2022-02-22 16:04:20 +00:00
Pali Rohár
26b982ca83 dt-bindings: PCI: mvebu: Add num-lanes property
Controller driver needs to correctly configure PCIe link if it contains 1
or 4 SerDes PCIe lanes. Therefore add a new 'num-lanes' DT property for
mvebu PCIe controller. Property 'num-lanes' seems to be de-facto standard
way how number of lanes is specified in other PCIe controllers.

Link: https://lore.kernel.org/r/20220222155030.988-5-pali@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2022-02-22 16:04:20 +00:00
Kunihiko Hayashi
f28b24042b dt-bindings: PCI: uniphier-ep: Add bindings for NX1 SoC
Update PCI endpoint binding document for UniPhier NX1 SoC. Add a compatible
string, clock and reset lines for the SoC to the document.

Link: https://lore.kernel.org/r/1644480596-20037-2-git-send-email-hayashi.kunihiko@socionext.com
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>
2022-02-11 16:26:21 +00:00
Linus Torvalds
d0a231f01e pci-v5.17-changes
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Merge tag 'pci-v5.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:
   - Use pci_find_vsec_capability() instead of open-coding it (Andy
     Shevchenko)
   - Convert pci_dev_present() stub from macro to static inline to avoid
     'unused variable' errors (Hans de Goede)
   - Convert sysfs slot attributes from default_attrs to default_groups
     (Greg Kroah-Hartman)
   - Use DWORD accesses for LTR, L1 SS to avoid BayHub OZ711LV2 erratum
     (Rajat Jain)
   - Remove unnecessary initialization of static variables (Longji Guo)

  Resource management:
   - Always write Intel I210 ROM BAR on update to work around device
     defect (Bjorn Helgaas)

  PCIe native device hotplug:
   - Fix pciehp lockdep errors on Thunderbolt undock (Hans de Goede)
   - Fix infinite loop in pciehp IRQ handler on power fault (Lukas
     Wunner)

  Power management:
   - Convert amd64-agp, sis-agp, via-agp from legacy PCI power
     management to generic power management (Vaibhav Gupta)

  IOMMU:
   - Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller
     so it can work with an IOMMU (Yifeng Li)

  Error handling:
   - Add PCI_ERROR_RESPONSE and related definitions for signaling and
     checking for transaction errors on PCI (Naveen Naidu)
   - Fabricate PCI_ERROR_RESPONSE data (~0) in config read wrappers,
     instead of in host controller drivers, when transactions fail on
     PCI (Naveen Naidu)
   - Use PCI_POSSIBLE_ERROR() to check for possible failure of config
     reads (Naveen Naidu)

  Peer-to-peer DMA:
   - Add Logan Gunthorpe as P2PDMA maintainer (Bjorn Helgaas)

  ASPM:
   - Calculate link L0s and L1 exit latencies when needed instead of
     caching them (Saheed O. Bolarinwa)
   - Calculate device L0s and L1 acceptable exit latencies when needed
     instead of caching them (Saheed O. Bolarinwa)
   - Remove struct aspm_latency since it's no longer needed (Saheed O.
     Bolarinwa)

  APM X-Gene PCIe controller driver:
   - Fix IB window setup, which was broken by the fact that IB resources
     are now sorted in address order instead of DT dma-ranges order (Rob
     Herring)

  Apple PCIe controller driver:
   - Enable clock gating to save power (Hector Martin)
   - Fix REFCLK1 enable/poll logic (Hector Martin)

  Broadcom STB PCIe controller driver:
   - Declare bitmap correctly for use by bitmap interfaces (Christophe
     JAILLET)
   - Clean up computation of legacy and non-legacy MSI bitmasks (Florian
     Fainelli)
   - Update suspend/resume/remove error handling to warn about errors
     and not fail the operation (Jim Quinlan)
   - Correct the "pcie" and "msi" interrupt descriptions in DT binding
     (Jim Quinlan)
   - Add DT bindings for endpoint voltage regulators (Jim Quinlan)
   - Split brcm_pcie_setup() into two functions (Jim Quinlan)
   - Add mechanism for turning on voltage regulators for connected
     devices (Jim Quinlan)
   - Turn voltage regulators for connected devices on/off when bus is
     added or removed (Jim Quinlan)
   - When suspending, don't turn off voltage regulators for wakeup
     devices (Jim Quinlan)

  Freescale i.MX6 PCIe controller driver:
   - Add i.MX8MM support (Richard Zhu)

  Freescale Layerscape PCIe controller driver:
   - Use DWC common ops instead of layerscape-specific link-up functions
     (Hou Zhiqiang)

  Intel VMD host bridge driver:
   - Honor platform ACPI _OSC feature negotiation for Root Ports below
     VMD (Kai-Heng Feng)
   - Add support for Raptor Lake SKUs (Karthik L Gopalakrishnan)
   - Reset everything below VMD before enumerating to work around
     failure to enumerate NVMe devices when guest OS reboots (Nirmal
     Patel)

  Bridge emulation (used by Marvell Aardvark and MVEBU):
   - Make emulated ROM BAR read-only by default (Pali Rohár)
   - Make some emulated legacy PCI bits read-only for PCIe devices (Pali
     Rohár)
   - Update reserved bits in emulated PCIe Capability (Pali Rohár)
   - Allow drivers to emulate different PCIe Capability versions (Pali
     Rohár)
   - Set emulated Capabilities List bit for all PCIe devices, since they
     must have at least a PCIe Capability (Pali Rohár)

  Marvell Aardvark PCIe controller driver:
   - Add bridge emulation definitions for PCIe DEVCAP2, DEVCTL2,
     DEVSTA2, LNKCAP2, LNKCTL2, LNKSTA2, SLTCAP2, SLTCTL2, SLTSTA2 (Pali
     Rohár)
   - Add aardvark support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2
     registers (Pali Rohár)
   - Clear all MSIs at setup to avoid spurious interrupts (Pali Rohár)
   - Disable bus mastering when unbinding host controller driver (Pali
     Rohár)
   - Mask all interrupts when unbinding host controller driver (Pali
     Rohár)
   - Fix memory leak in host controller unbind (Pali Rohár)
   - Assert PERST# when unbinding host controller driver (Pali Rohár)
   - Disable link training when unbinding host controller driver (Pali
     Rohár)
   - Disable common PHY when unbinding host controller driver (Pali
     Rohár)
   - Fix resource type checking to check only IORESOURCE_MEM, not
     IORESOURCE_MEM_64, which is a flavor of IORESOURCE_MEM (Pali Rohár)

  Marvell MVEBU PCIe controller driver:
   - Implement pci_remap_iospace() for ARM so mvebu can use
     devm_pci_remap_iospace() instead of the previous ARM-specific
     pci_ioremap_io() interface (Pali Rohár)
   - Use the standard pci_host_probe() instead of the device-specific
     mvebu_pci_host_probe() (Pali Rohár)
   - Replace all uses of ARM-specific pci_ioremap_io() with the ARM
     implementation of the standard pci_remap_iospace() interface and
     remove pci_ioremap_io() (Pali Rohár)
   - Skip initializing invalid Root Ports (Pali Rohár)
   - Check for errors from pci_bridge_emul_init() (Pali Rohár)
   - Ignore any bridges at non-zero function numbers (Pali Rohár)
   - Return ~0 data for invalid config read size (Pali Rohár)
   - Disallow mapping interrupts on emulated bridges (Pali Rohár)
   - Clear Root Port Memory & I/O Space Enable and Bus Master Enable at
     initialization (Pali Rohár)
   - Make type bits in Root Port I/O Base register read-only (Pali
     Rohár)
   - Disable Root Port windows when base/limit set to invalid values
     (Pali Rohár)
   - Set controller to Root Complex mode (Pali Rohár)
   - Set Root Port Class Code to PCI Bridge (Pali Rohár)
   - Update emulated Root Port secondary bus numbers to better reflect
     the actual topology (Pali Rohár)
   - Add PCI_BRIDGE_CTL_BUS_RESET support to emulated Root Ports so
     pci_reset_secondary_bus() can reset connected devices (Pali Rohár)
   - Add PCI_EXP_DEVCTL Error Reporting Enable support to emulated Root
     Ports (Pali Rohár)
   - Add PCI_EXP_RTSTA PME Status bit support to emulated Root Ports
     (Pali Rohár)
   - Add DEVCAP2, DEVCTL2 and LNKCTL2 support to emulated Root Ports on
     Armada XP and newer devices (Pali Rohár)
   - Export mvebu-mbus.c symbols to allow pci-mvebu.c to be a module
     (Pali Rohár)
   - Add support for compiling as a module (Pali Rohár)

  MediaTek PCIe controller driver:
   - Assert PERST# for 100ms to allow power and clock to stabilize
     (qizhong cheng)

  MediaTek PCIe Gen3 controller driver:
   - Disable Mediatek DVFSRC voltage request since lack of DVFSRC to
     respond to the request causes failure to exit L1 PM Substate
     (Jianjun Wang)

  MediaTek MT7621 PCIe controller driver:
   - Declare mt7621_pci_ops static (Sergio Paracuellos)
   - Give pcibios_root_bridge_prepare() access to host bridge windows
     (Sergio Paracuellos)
   - Move MIPS I/O coherency unit setup from driver to
     pcibios_root_bridge_prepare() (Sergio Paracuellos)
   - Add missing MODULE_LICENSE() (Sergio Paracuellos)
   - Allow COMPILE_TEST for all arches (Sergio Paracuellos)

  Microsoft Hyper-V host bridge driver:
   - Add hv-internal interfaces to encapsulate arch IRQ dependencies
     (Sunil Muthuswamy)
   - Add arm64 Hyper-V vPCI support (Sunil Muthuswamy)

  Qualcomm PCIe controller driver:
   - Undo PM setup in qcom_pcie_probe() error handling path (Christophe
     JAILLET)
   - Use __be16 type to store return value from cpu_to_be16()
     (Manivannan Sadhasivam)
   - Constify static dw_pcie_ep_ops (Rikard Falkeborn)

  Renesas R-Car PCIe controller driver:
   - Fix aarch32 abort handler so it doesn't check the wrong bus clock
     before accessing the host controller (Marek Vasut)

  TI Keystone PCIe controller driver:
   - Add register offset for ti,syscon-pcie-id and ti,syscon-pcie-mode
     DT properties (Kishon Vijay Abraham I)

  MicroSemi Switchtec management driver:
   - Add Gen4 automotive device IDs (Kelvin Cao)
   - Declare state_names[] as static so it's not allocated and
     initialized for every call (Kelvin Cao)

  Host controller driver cleanups:
   - Use of_device_get_match_data(), not of_match_device(), when we only
     need the device data in altera, artpec6, cadence, designware-plat,
     dra7xx, keystone, kirin (Fan Fei)
   - Drop pointless of_device_get_match_data() cast in j721e (Bjorn
     Helgaas)
   - Drop redundant struct device * from j721e since struct cdns_pcie
     already has one (Bjorn Helgaas)
   - Rename driver structs to *_pcie in intel-gw, iproc, ls-gen4,
     mediatek-gen3, microchip, mt7621, rcar-gen2, tegra194, uniphier,
     xgene, xilinx, xilinx-cpm for consistency across drivers (Fan Fei)
   - Fix invalid address space conversions in hisi, spear13xx (Bjorn
     Helgaas)

  Miscellaneous:
   - Sort Intel Device IDs by value (Andy Shevchenko)
   - Change Capability offsets to hex to match spec (Baruch Siach)
   - Correct misspellings (Krzysztof Wilczyński)
   - Terminate statement with semicolon in pci_endpoint_test.c (Ming
     Wang)"

* tag 'pci-v5.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (151 commits)
  PCI: mt7621: Allow COMPILE_TEST for all arches
  PCI: mt7621: Add missing MODULE_LICENSE()
  PCI: mt7621: Move MIPS setup to pcibios_root_bridge_prepare()
  PCI: Let pcibios_root_bridge_prepare() access bridge->windows
  PCI: mt7621: Declare mt7621_pci_ops static
  PCI: brcmstb: Do not turn off WOL regulators on suspend
  PCI: brcmstb: Add control of subdevice voltage regulators
  PCI: brcmstb: Add mechanism to turn on subdev regulators
  PCI: brcmstb: Split brcm_pcie_setup() into two funcs
  dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators
  dt-bindings: PCI: Correct brcmstb interrupts, interrupt-map.
  PCI: brcmstb: Fix function return value handling
  PCI: brcmstb: Do not use __GENMASK
  PCI: brcmstb: Declare 'used' as bitmap, not unsigned long
  PCI: hv: Add arm64 Hyper-V vPCI support
  PCI: hv: Make the code arch neutral by adding arch specific interfaces
  PCI: pciehp: Use down_read/write_nested(reset_lock) to fix lockdep errors
  x86/PCI: Remove initialization of static variables to false
  PCI: Use DWORD accesses for LTR, L1 SS to avoid erratum
  misc: pci_endpoint_test: Terminate statement with semicolon
  ...
2022-01-16 08:08:11 +02:00
Linus Torvalds
3fb561b1e0 - added support for more BCM47XX based devices
- added MIPS support for brcmstb PCIe controller
 - added Loongson 2K1000 reset driver
 - removed board support for rbtx4938/rbtx4939
 - removed support for TX4939 SoCs
 - fixes and cleanups
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Merge tag 'mips_5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - add support for more BCM47XX based devices

 - add MIPS support for brcmstb PCIe controller

 - add Loongson 2K1000 reset driver

 - remove board support for rbtx4938/rbtx4939

 - remove support for TX4939 SoCs

 - fixes and cleanups

* tag 'mips_5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (59 commits)
  MIPS: ath79: drop _machine_restart again
  PCI: brcmstb: Augment driver for MIPs SOCs
  MIPS: bmips: Remove obsolete DMA mapping support
  MIPS: bmips: Add support PCIe controller device nodes
  dt-bindings: PCI: Add compatible string for Brcmstb 74[23]5 MIPs SOCs
  MIPS: compressed: Fix build with ZSTD compression
  MIPS: BCM47XX: Add support for Netgear WN2500RP v1 & v2
  MIPS: BCM47XX: Add support for Netgear R6300 v1
  MIPS: BCM47XX: Add LEDs and buttons for Asus RTN-10U
  MIPS: BCM47XX: Add board entry for Linksys WRT320N v1
  MIPS: BCM47XX: Define Linksys WRT310N V2 buttons
  MIPS: Remove duplicated include in local.h
  MIPS: retire "asm/llsc.h"
  MIPS: rework local_t operation on MIPS64
  MIPS: fix local_{add,sub}_return on MIPS64
  mips/pci: remove redundant ret variable
  MIPS: Loongson64: Add missing of_node_put() in ls2k_reset_init()
  MIPS: new Kconfig option ZBOOT_LOAD_ADDRESS
  MIPS: enable both vmlinux.gz.itb and vmlinuz for generic
  MIPS: signal: Return immediately if call fails
  ...
2022-01-14 15:08:36 +01:00
Bjorn Helgaas
0dfa6f6e68 Merge branch 'remotes/lorenzo/pci/keystone'
- Add register offset for ti,syscon-pcie-id and ti,syscon-pcie-mode DT
  properties (Kishon Vijay Abraham I)

* remotes/lorenzo/pci/keystone:
  PCI: keystone: Use phandle argument from "ti,syscon-pcie-id"/"ti,syscon-pcie-mode"
  dt-bindings: PCI: ti,am65: Fix "ti,syscon-pcie-id"/"ti,syscon-pcie-mode" to take argument
2022-01-13 09:57:48 -06:00
Bjorn Helgaas
2948ce70e6 Merge branch 'remotes/lorenzo/pci/dwc'
- Don't ioremap NULL when DT lacks ATU resource (Tim Harvey)

- Drop redundant qcom-ep error message for platform_get_irq_byname()
  failure (Krzysztof Wilczyński)

- Add i.MX8MM support (Richard Zhu)

- Use DWC common ops instead of layerscape-specific link-up functions (Hou
  Zhiqiang)

* remotes/lorenzo/pci/dwc:
  PCI: layerscape: Change to use the DWC common link-up check function
  PCI: imx: Add the imx8mm pcie support
  dt-bindings: imx6q-pcie: Add PHY phandles and name properties
  PCI: qcom-ep: Remove surplus dev_err() when using platform_get_irq_byname()
  PCI: dwc: Do not remap invalid res
2022-01-13 09:57:47 -06:00
Linus Torvalds
4eb766f64d Devicetree updates for v5.17:
Bindings:
 - DT schema conversions for Samsung clocks, RNG bindings, Qcom Command
   DB and rmtfs, gpio-restart, i2c-mux-gpio, i2c-mux-pinctl, Tegra I2C
   and BPMP, pwm-vibrator, Arm DSU, and Cadence macb
 
 - DT schema conversions for Broadcom platforms: interrupt controllers,
   STB GPIO, STB waketimer, STB reset, iProc MDIO mux, iProc PCIe,
   Cygnus PCIe PHY, PWM, USB BDC, BCM6328 LEDs, TMON, SYSTEMPORT, AMAC,
   Northstar 2 PCIe PHY, GENET, moca PHY, GISB arbiter, and SATA
 
 - Add binding schemas for Tegra210 EMC table, TI DC-DC converters,
 
 - Clean-ups of MDIO bus schemas to fix 'unevaluatedProperties' issues
 
 - More fixes due to 'unevaluatedProperties' enabling
 
 - Data type fixes and clean-ups of binding examples found in preparation
   to move to validating DTB files directly (instead of intermediate YAML
   representation.
 
 - Vendor prefixes for T-Head Semiconductor, OnePlus, and Sunplus
 
 - Add various new compatible strings
 
 DT core:
 - Silence a warning for overlapping reserved memory regions
 
 - Reimplement unittest overlay tracking
 
 - Fix stack frame size warning in unittest
 
 - Clean-ups of early FDT scanning functions
 
 - Fix handling of "linux,usable-memory-range" on EFI booted systems
 
 - Add support for 'fail' status on CPU nodes
 
 - Improve error message in of_phandle_iterator_next()
 
 - kbuild: Disable duplicate unit-address warnings for disabled nodes
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Merge tag 'devicetree-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "Bindings:

   - DT schema conversions for Samsung clocks, RNG bindings, Qcom
     Command DB and rmtfs, gpio-restart, i2c-mux-gpio, i2c-mux-pinctl,
     Tegra I2C and BPMP, pwm-vibrator, Arm DSU, and Cadence macb

   - DT schema conversions for Broadcom platforms: interrupt
     controllers, STB GPIO, STB waketimer, STB reset, iProc MDIO mux,
     iProc PCIe, Cygnus PCIe PHY, PWM, USB BDC, BCM6328 LEDs, TMON,
     SYSTEMPORT, AMAC, Northstar 2 PCIe PHY, GENET, moca PHY, GISB
     arbiter, and SATA

   - Add binding schemas for Tegra210 EMC table, TI DC-DC converters,

   - Clean-ups of MDIO bus schemas to fix 'unevaluatedProperties' issues

   - More fixes due to 'unevaluatedProperties' enabling

   - Data type fixes and clean-ups of binding examples found in
     preparation to move to validating DTB files directly (instead of
     intermediate YAML representation.

   - Vendor prefixes for T-Head Semiconductor, OnePlus, and Sunplus

   - Add various new compatible strings

  DT core:

   - Silence a warning for overlapping reserved memory regions

   - Reimplement unittest overlay tracking

   - Fix stack frame size warning in unittest

   - Clean-ups of early FDT scanning functions

   - Fix handling of "linux,usable-memory-range" on EFI booted systems

   - Add support for 'fail' status on CPU nodes

   - Improve error message in of_phandle_iterator_next()

   - kbuild: Disable duplicate unit-address warnings for disabled nodes"

* tag 'devicetree-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (114 commits)
  dt-bindings: net: mdio: Drop resets/reset-names child properties
  dt-bindings: clock: samsung: convert S5Pv210 to dtschema
  dt-bindings: clock: samsung: convert Exynos5410 to dtschema
  dt-bindings: clock: samsung: convert Exynos5260 to dtschema
  dt-bindings: clock: samsung: extend Exynos7 bindings with UFS
  dt-bindings: clock: samsung: convert Exynos7 to dtschema
  dt-bindings: clock: samsung: convert Exynos5433 to dtschema
  dt-bindings: i2c: maxim,max96712: Add bindings for Maxim Integrated MAX96712
  dt-bindings: iio: adi,ltc2983: Fix 64-bit property sizes
  dt-bindings: power: maxim,max17040: Fix incorrect type for 'maxim,rcomp'
  dt-bindings: interrupt-controller: arm,gic-v3: Fix 'interrupts' cell size in example
  dt-bindings: iio/magnetometer: yamaha,yas530: Fix invalid 'interrupts' in example
  dt-bindings: clock: imx5: Drop clock consumer node from example
  dt-bindings: Drop required 'interrupt-parent'
  dt-bindings: net: ti,dp83869: Drop value on boolean 'ti,max-output-impedance'
  dt-bindings: net: wireless: mt76: Fix 8-bit property sizes
  dt-bindings: PCI: snps,dw-pcie-ep: Drop conflicting 'max-functions' schema
  dt-bindings: i2c: st,stm32-i2c: Make each example a separate entry
  dt-bindings: net: stm32-dwmac: Make each example a separate entry
  dt-bindings: net: Cleanup MDIO node schemas
  ...
2022-01-12 16:47:05 -08:00
Jim Quinlan
ea372f45cf dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators
Add bindings for Brcmstb EP voltage regulators.  A new mechanism is to be
added to the Linux PCI subsystem that will allocate and turn on/off
regulators.  These are standard regulators -- vpcie12v, vpcie3v3, and
vpcie3v3aux -- placed in the DT in the bridge node under the host bridge
device.

The use of a regulator property in the PCIe EP subnode such as
"vpcie12v-supply" depends on a pending pullreq to the pci-bus.yaml
file at

  https://github.com/devicetree-org/dt-schema/pull/63

Link: https://lore.kernel.org/r/20220106160332.2143-4-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2022-01-12 13:45:50 -06:00
Jim Quinlan
504253e44a dt-bindings: PCI: Correct brcmstb interrupts, interrupt-map.
The "pcie" and "msi" interrupts were given the same interrupt when they are
actually different.  Interrupt-map only had the INTA entry; add the INTB,
INTC, and INTD entries.

Link: https://lore.kernel.org/r/20220106160332.2143-3-jim2101024@gmail.com
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
2022-01-12 13:45:50 -06:00
Rob Herring
da4b3d88b0 dt-bindings: Drop required 'interrupt-parent'
'interrupt-parent' is never required as it can be in a parent node or a
parent node itself can be an interrupt provider. Where exactly it lives is
outside the scope of a binding schema.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
Link: https://lore.kernel.org/r/20220107031905.2406176-1-robh@kernel.org
2022-01-11 11:54:35 -06:00
Rob Herring
437b168028 dt-bindings: PCI: snps,dw-pcie-ep: Drop conflicting 'max-functions' schema
'max-functions' is already defined in pci-ep.yaml schema as a uint8 and all
users of it expect an uint8. Drop the conflicting schema.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220107030358.2378221-1-robh@kernel.org
2022-01-11 11:54:34 -06:00
Jim Quinlan
145790e55d dt-bindings: PCI: Add compatible string for Brcmstb 74[23]5 MIPs SOCs
The Broadcom STB Arm and MIPs SOCs use the same PCIe controller
HW, although the MIPs version is older.

Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2022-01-11 11:55:41 +01:00
Kishon Vijay Abraham I
d91e775e66 dt-bindings: PCI: ti,am65: Fix "ti,syscon-pcie-id"/"ti,syscon-pcie-mode" to take argument
Fix binding documentation of "ti,syscon-pcie-id" and "ti,syscon-pcie-mode"
to take phandle with argument. The argument is the register offset within
"syscon" used to configure PCIe controller. Similar change for j721e is
discussed in [1]

[1] -> http://lore.kernel.org/r/CAL_JsqKiUcO76bo1GoepWM1TusJWoty_BRy2hFSgtEVMqtrvvQ@mail.gmail.com

Link: https://lore.kernel.org/r/20211126083119.16570-2-kishon@ti.com
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>
2022-01-07 10:54:37 +00:00
Richard Zhu
3e15f623bb dt-bindings: imx6q-pcie: Add PHY phandles and name properties
i.MX8MM PCIe has the PHY. Add a PHY phandle and name properties
in the binding document.

Link: https://lore.kernel.org/r/1638432158-4119-4-git-send-email-hongxing.zhu@nxp.com
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Rob Herring <robh@kernel.org>
2021-12-16 10:32:19 +00:00
Rob Herring
b92225b034 dt-bindings: PCI: designware: Fix 'unevaluatedProperties' warnings
With 'unevaluatedProperties' support implemented, there's a number of
warnings from the Designware PCIe based bindings:

Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.example.dt.yaml: pcie@1ffc000: Unevaluated properties are not allowed ('#address-cells', '#size-cells', 'device_type', 'bus-range', 'ranges', '#interrupt-cells', 'interrupt-map-mask', 'interrupt-map' were unexpected)
Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.example.dt.yaml: pcie@1ffc000: Unevaluated properties are not allowed ('clock-names' was unexpected)
Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.example.dt.yaml: pcie@f4000000: Unevaluated properties are not allowed ('bus-range', '#address-cells', '#size-cells', 'device_type', 'ranges', 'num-lanes', '#interrupt-cells', 'interrupts', 'interrupt-names', 'interrupt-map-mask', 'interrupt-map', 'clocks', 'clock-names' were unexpected)
Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.example.dt.yaml: pcie@f4000000: Unevaluated properties are not allowed ('clock-names' was unexpected)
Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.example.dt.yaml: pcie@f5000000: Unevaluated properties are not allowed ('bus-range', '#address-cells', '#size-cells', 'device_type', 'phys', 'ranges', 'num-lanes', '#interrupt-cells', 'interrupts', 'interrupt-names', 'interrupt-map-mask', 'interrupt-map', 'reset-gpios', 'pcie@0,0' were unexpected)
Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.example.dt.yaml: pcie@f5000000: Unevaluated properties are not allowed ('phys', 'hisilicon,clken-gpios' were unexpected)
Documentation/devicetree/bindings/pci/intel-gw-pcie.example.dt.yaml: pcie@d0e00000: Unevaluated properties are not allowed ('device_type', '#address-cells', '#size-cells', 'linux,pci-domain', 'bus-range', '#interrupt-cells', 'interrupt-map-mask', 'interrupt-map' were unexpected)
Documentation/devicetree/bindings/pci/intel-gw-pcie.example.dt.yaml: pcie@d0e00000: Unevaluated properties are not allowed ('resets', 'phys', 'phy-names', 'reset-assert-ms' were unexpected)
Documentation/devicetree/bindings/pci/rockchip-dw-pcie.example.dt.yaml: pcie@fe280000: Unevaluated properties are not allowed ('clock-names', 'msi-map', 'phys', 'phy-names', 'power-domains', 'resets', 'reset-names' were unexpected)
Documentation/devicetree/bindings/pci/samsung,exynos-pcie.example.dt.yaml: pcie@15700000: Unevaluated properties are not allowed ('#address-cells', '#size-cells', '#interrupt-cells', 'device_type', 'bus-range', 'ranges', 'interrupt-map-mask', 'interrupt-map' were unexpected)
Documentation/devicetree/bindings/pci/samsung,exynos-pcie.example.dt.yaml: pcie@15700000: Unevaluated properties are not allowed ('clock-names', 'phys', 'vdd10-supply', 'vdd18-supply' were unexpected)
Documentation/devicetree/bindings/pci/sifive,fu740-pcie.example.dt.yaml: pcie@e00000000: Unevaluated properties are not allowed ('#address-cells', '#size-cells', '#interrupt-cells', 'device_type', 'dma-coherent', 'bus-range', 'ranges', 'interrupts', 'interrupt-parent', 'interrupt-map-mask', 'interrupt-map', 'clock-names', 'clocks' were unexpected)
Documentation/devicetree/bindings/pci/sifive,fu740-pcie.example.dt.yaml: pcie@e00000000: Unevaluated properties are not allowed ('dma-coherent', 'clock-names', 'resets', 'pwren-gpios' were unexpected)
Documentation/devicetree/bindings/pci/socionext,uniphier-pcie-ep.example.dt.yaml: pcie-ep@66000000: Unevaluated properties are not allowed ('clock-names', 'clocks', 'reset-names', 'resets', 'phy-names', 'phys' were unexpected)
Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.example.dt.yaml: pcie@28400000: Unevaluated properties are not allowed ('clock-names' was unexpected)
Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.example.dt.yaml: pcie@28400000: Unevaluated properties are not allowed ('device_type', 'bus-range', 'num-viewport', '#address-cells', '#size-cells', '#interrupt-cells', 'ranges', 'interrupt-names', 'interrupt-map-mask', 'interrupt-map', 'max-link-speed' were unexpected)

The main problem is that snps,dw-pcie.yaml and snps,dw-pcie-ep.yaml
shouldn't set 'unevaluatedProperties: false'. Otherwise, bindings that
reference them cannot add additional properties. With that addressed,
there's a handful of other undocumented properties to add.

Cc: Xiaowei Song <songxiaowei@hisilicon.com>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Greentime Hu <greentime.hu@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: linux-pci@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211206194426.2470080-1-robh@kernel.org
2021-12-14 16:18:52 -06:00
Rob Herring
375c4b837e dt-bindings: PCI: cdns-ep: Fix 'unevaluatedProperties' warnings
With 'unevaluatedProperties' support implemented, the TI j721e endpoint
binding example has a warning:

Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.example.dt.yaml: pcie-ep@d000000: Unevaluated properties are not allowed ('max-link-speed', 'num-lanes', 'max-functions' were unexpected)

Adjust where pci-ep.yaml is referenced so that ti,j721e-pci-ep.yaml will
include it.

Cc: Tom Joseph <tjoseph@cadence.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211206194413.2469643-1-robh@kernel.org
2021-12-14 16:18:51 -06:00
Rob Herring
dcd49679fb dt-bindings: PCI: Fix 'unevaluatedProperties' warnings
With 'unevaluatedProperties' support implemented, there's several
warnings due to undocumented properties:

Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.example.dt.yaml: pcie@1e140000: pcie@0,0: Unevaluated properties are not allowed ('phy-names' was unexpected)
Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.example.dt.yaml: pcie@1e140000: pcie@1,0: Unevaluated properties are not allowed ('phy-names' was unexpected)
Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.example.dt.yaml: pcie@1e140000: pcie@2,0: Unevaluated properties are not allowed ('phy-names' was unexpected)
Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.example.dt.yaml: pcie@11230000: Unevaluated properties are not allowed ('phy-names' was unexpected)
Documentation/devicetree/bindings/pci/microchip,pcie-host.example.dt.yaml: pcie@2030000000: Unevaluated properties are not allowed ('interrupt-controller' was unexpected)
Documentation/devicetree/bindings/pci/ti,am65-pci-ep.example.dt.yaml: pcie-ep@5500000: Unevaluated properties are not allowed ('num-ib-windows', 'num-ob-windows' were unexpected)
Documentation/devicetree/bindings/pci/ti,am65-pci-host.example.dt.yaml: pcie@5500000: Unevaluated properties are not allowed ('num-viewport', 'interrupts' were unexpected)
Documentation/devicetree/bindings/pci/ti,j721e-pci-host.example.dt.yaml: pcie@2900000: Unevaluated properties are not allowed ('dma-coherent' was unexpected)

Add the necessary property definitions or remove the properties from the
examples to fix these warnings.

Cc: Ryder Lee <ryder.lee@mediatek.com>
Cc: Jianjun Wang <jianjun.wang@mediatek.com>
Cc: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Daire McNamara <daire.mcnamara@microchip.com>
Cc: Abraham I <kishon@ti.com>
Cc: linux-pci@vger.kernel.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20211206194406.2469361-1-robh@kernel.org
2021-12-14 16:18:51 -06:00
Florian Fainelli
905b986d09 dt-bindings: pci: Convert iProc PCIe to YAML
Conver the iProc PCIe controller Device Tree binding to YAML now that
all DTS in arch/arm and arch/arm64 have been fixed to be compliant.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211214035820.2984289-7-f.fainelli@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-12-14 14:27:57 -06:00
Hector Martin
42c2366a9c dt-bindings: pci: apple,pcie: Add t6000 support
This new SoC is compatible with the existing driver, but the block
supports 4 downstream ports, so we need to adjust the binding to
allow that.

Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-12-12 10:33:05 +09:00
Florian Fainelli
5e8a7d26d9 dt-bindings: PCI: brcmstb: compatible is required
The compatible property is required, make sure the binding documents it
as such.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211202223609.1171452-1-f.fainelli@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-12-08 13:51:12 -06:00
Linus Torvalds
0c5c62ddf8 pci-v5.16-changes
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Merge tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:
   - Conserve IRQs by setting up portdrv IRQs only when there are users
     (Jan Kiszka)
   - Rework and simplify _OSC negotiation for control of PCIe features
     (Joerg Roedel)
   - Remove struct pci_dev.driver pointer since it's redundant with the
     struct device.driver pointer (Uwe Kleine-König)

  Resource management:
   - Coalesce contiguous host bridge apertures from _CRS to accommodate
     BARs that cover more than one aperture (Kai-Heng Feng)

  Sysfs:
   - Check CAP_SYS_ADMIN before parsing user input (Krzysztof
     Wilczyński)
   - Return -EINVAL consistently from "store" functions (Krzysztof
     Wilczyński)
   - Use sysfs_emit() in endpoint "show" functions to avoid buffer
     overruns (Kunihiko Hayashi)

  PCIe native device hotplug:
   - Ignore Link Down/Up caused by resets during error recovery so
     endpoint drivers can remain bound to the device (Lukas Wunner)

  Virtualization:
   - Avoid bus resets on Atheros QCA6174, where they hang the device
     (Ingmar Klein)
   - Work around Pericom PI7C9X2G switch packet drop erratum by using
     store and forward mode instead of cut-through (Nathan Rossi)
   - Avoid trying to enable AtomicOps on VFs; the PF setting applies to
     all VFs (Selvin Xavier)

  MSI:
   - Document that /sys/bus/pci/devices/.../irq contains the legacy INTx
     interrupt or the IRQ of the first MSI (not MSI-X) vector (Barry
     Song)

  VPD:
   - Add pci_read_vpd_any() and pci_write_vpd_any() to access anywhere
     in the possible VPD space; use these to simplify the cxgb3 driver
     (Heiner Kallweit)

  Peer-to-peer DMA:
   - Add (not subtract) the bus offset when calculating DMA address
     (Wang Lu)

  ASPM:
   - Re-enable LTR at Downstream Ports so they don't report Unsupported
     Requests when reset or hot-added devices send LTR messages
     (Mingchuang Qiao)

  Apple PCIe controller driver:
   - Add driver for Apple M1 PCIe controller (Alyssa Rosenzweig, Marc
     Zyngier)

  Cadence PCIe controller driver:
   - Return success when probe succeeds instead of falling into error
     path (Li Chen)

  HiSilicon Kirin PCIe controller driver:
   - Reorganize PHY logic and add support for external PHY drivers
     (Mauro Carvalho Chehab)
   - Support PERST# GPIOs for HiKey970 external PEX 8606 bridge (Mauro
     Carvalho Chehab)
   - Add Kirin 970 support (Mauro Carvalho Chehab)
   - Make driver removable (Mauro Carvalho Chehab)

  Intel VMD host bridge driver:
   - If IOMMU supports interrupt remapping, leave VMD MSI-X remapping
     enabled (Adrian Huang)
   - Number each controller so we can tell them apart in
     /proc/interrupts (Chunguang Xu)
   - Avoid building on UML because VMD depends on x86 bare metal APIs
     (Johannes Berg)

  Marvell Aardvark PCIe controller driver:
   - Define macros for PCI_EXP_DEVCTL_PAYLOAD_* (Pali Rohár)
   - Set Max Payload Size to 512 bytes per Marvell spec (Pali Rohár)
   - Downgrade PIO Response Status messages to debug level (Marek Behún)
   - Preserve CRS SV (Config Request Retry Software Visibility) bit in
     emulated Root Control register (Pali Rohár)
   - Fix issue in configuring reference clock (Pali Rohár)
   - Don't clear status bits for masked interrupts (Pali Rohár)
   - Don't mask unused interrupts (Pali Rohár)
   - Avoid code repetition in advk_pcie_rd_conf() (Marek Behún)
   - Retry config accesses on CRS response (Pali Rohár)
   - Simplify emulated Root Capabilities initialization (Pali Rohár)
   - Fix several link training issues (Pali Rohár)
   - Fix link-up checking via LTSSM (Pali Rohár)
   - Fix reporting of Data Link Layer Link Active (Pali Rohár)
   - Fix emulation of W1C bits (Marek Behún)
   - Fix MSI domain .alloc() method to return zero on success (Marek
     Behún)
   - Read entire 16-bit MSI vector in MSI handler, not just low 8 bits
     (Marek Behún)
   - Clear Root Port I/O Space, Memory Space, and Bus Master Enable bits
     at startup; PCI core will set those as necessary (Pali Rohár)
   - When operating as a Root Port, set class code to "PCI Bridge"
     instead of the default "Mass Storage Controller" (Pali Rohár)
   - Add emulation for PCI_BRIDGE_CTL_BUS_RESET since aardvark doesn't
     implement this per spec (Pali Rohár)
   - Add emulation of option ROM BAR since aardvark doesn't implement
     this per spec (Pali Rohár)

  MediaTek MT7621 PCIe controller driver:
   - Add MediaTek MT7621 PCIe host controller driver and DT binding
     (Sergio Paracuellos)

  Qualcomm PCIe controller driver:
   - Add SC8180x compatible string (Bjorn Andersson)
   - Add endpoint controller driver and DT binding (Manivannan
     Sadhasivam)
   - Restructure to use of_device_get_match_data() (Prasad Malisetty)
   - Add SC7280-specific pcie_1_pipe_clk_src handling (Prasad Malisetty)

  Renesas R-Car PCIe controller driver:
   - Remove unnecessary includes (Geert Uytterhoeven)

  Rockchip DesignWare PCIe controller driver:
   - Add DT binding (Simon Xue)

  Socionext UniPhier Pro5 controller driver:
   - Serialize INTx masking/unmasking (Kunihiko Hayashi)

  Synopsys DesignWare PCIe controller driver:
   - Run dwc .host_init() method before registering MSI interrupt
     handler so we can deal with pending interrupts left by bootloader
     (Bjorn Andersson)
   - Clean up Kconfig dependencies (Andy Shevchenko)
   - Export symbols to allow more modular drivers (Luca Ceresoli)

  TI DRA7xx PCIe controller driver:
   - Allow host and endpoint drivers to be modules (Luca Ceresoli)
   - Enable external clock if present (Luca Ceresoli)

  TI J721E PCIe driver:
   - Disable PHY when probe fails after initializing it (Christophe
     JAILLET)

  MicroSemi Switchtec management driver:
   - Return error to application when command execution fails because an
     out-of-band reset has cleared the device BARs, Memory Space Enable,
     etc (Kelvin Cao)
   - Fix MRPC error status handling issue (Kelvin Cao)
   - Mask out other bits when reading of management VEP instance ID
     (Kelvin Cao)
   - Return EOPNOTSUPP instead of ENOTSUPP from sysfs show functions
     (Kelvin Cao)
   - Add check of event support (Logan Gunthorpe)

  Miscellaneous:
   - Remove unused pci_pool wrappers, which have been replaced by
     dma_pool (Cai Huoqing)
   - Use 'unsigned int' instead of bare 'unsigned' (Krzysztof
     Wilczyński)
   - Use kstrtobool() directly, sans strtobool() wrapper (Krzysztof
     Wilczyński)
   - Fix some sscanf(), sprintf() format mismatches (Krzysztof
     Wilczyński)
   - Update PCI subsystem information in MAINTAINERS (Krzysztof
     Wilczyński)
   - Correct some misspellings (Krzysztof Wilczyński)"

* tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (137 commits)
  PCI: Add ACS quirk for Pericom PI7C9X2G switches
  PCI: apple: Configure RID to SID mapper on device addition
  iommu/dart: Exclude MSI doorbell from PCIe device IOVA range
  PCI: apple: Implement MSI support
  PCI: apple: Add INTx and per-port interrupt support
  PCI: kirin: Allow removing the driver
  PCI: kirin: De-init the dwc driver
  PCI: kirin: Disable clkreq during poweroff sequence
  PCI: kirin: Move the power-off code to a common routine
  PCI: kirin: Add power_off support for Kirin 960 PHY
  PCI: kirin: Allow building it as a module
  PCI: kirin: Add MODULE_* macros
  PCI: kirin: Add Kirin 970 compatible
  PCI: kirin: Support PERST# GPIOs for HiKey970 external PEX 8606 bridge
  PCI: apple: Set up reference clocks when probing
  PCI: apple: Add initial hardware bring-up
  PCI: of: Allow matching of an interrupt-map local to a PCI device
  of/irq: Allow matching of an interrupt-map local to an interrupt controller
  irqdomain: Make of_phandle_args_to_fwspec() generally available
  PCI: Do not enable AtomicOps on VFs
  ...
2021-11-06 14:36:12 -07:00