linux-pci.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: srikanth.thokala@intel.com
To: bhelgaas@google.com, robh+dt@kernel.org, lorenzo.pieralisi@arm.com
Cc: linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
	andriy.shevchenko@linux.intel.com, mgross@linux.intel.com,
	lakshmi.bai.raja.subramanian@intel.com,
	mallikarjunappa.sangannavar@intel.com,
	srikanth.thokala@intel.com
Subject: [PATCH v7 0/2] PCI: keembay: Add support for Intel Keem Bay
Date: Mon, 25 Jan 2021 05:17:00 +0530	[thread overview]
Message-ID: <20210124234702.21074-1-srikanth.thokala@intel.com> (raw)

From: Srikanth Thokala <srikanth.thokala@intel.com>

Hi,

The first patch is to document DT bindings for Keem Bay PCIe controller
for both Root Complex and Endpoint modes.

The second patch is the driver file, a glue driver. Keem Bay PCIe
controller is based on DesignWare PCIe IP.

The patch was tested with Keem Bay evaluation module board, with A0
stepping.

Kindly review.

Thanks!
Srikanth

Changes since v6:
- Arrange SoB in chronological order.
- Alphabetized and modified status of entry in MAINTAINERS.
- Added a comment to specify the PCIe spec section about the delay.

Changes since v5:
- Rebased to v5.11-rc4.
- Updated maintainers to add myself in DT binding documents.
- Fix checkpatch issues.

Changes since v4:
- Rebased to v5.11-rc1 and retest.

Changes since v3:
- Add Reviewed-by: Rob Herring <robh@kernel.org> tag in dt-bindings
  patch.
- Remove the keembay_pcie_{readl,writel} wrappers. And replace them with
  readl() and writel().
- Remove the dead code related to unused irqs.
- Remove unused definition for unused irqs.
- In keembay_pcie_ep_init(), initialize enabled interrupts to known state.
- Rebased to next-20201215.

Changes since v2:
- In keembay_pcie_probe(), use return keembay_pcie_add_pcie_port(pcie,
  pdev); statement and remove return 0; at the end of the function.

Changes since v1:
- In dt-bindings patch.
  - Fixed indent warning for compatible property.
  - Rename interrupt-names to pcie, pcie_ev, pcie_err and
    pcie_mem_access, similar to the name used in datasheet.
  - Remove device_type, #address-cells and #size-cells property.
  - Remove num-viewport, num-ib-windows and num-ob-windows property.
  - Replace additionalProperties with unevaluatedProperties, for RC
    only.
  - Add dbi2 and atu property.
  - Remove description for regs and interrupts property.
  - Change enum value for num-lanes to 1 and 2 only.
- In driver patch.
  - In Kconfig file, remove dependency on ARM64.
  - Add new define, PCIE_REGS_PCIE_SII_LINK_UP.
  - Remove PCIE_DBI2_MASK.
  - In struct keembay_pcie, declare pci member as struct, not pointer.
    And remove irq number members.
  - Rename and rework keembay_pcie_establish_link(), to
    keembay_pcie_start_link().
  - Remove unneeded BAR disable steps.
  - Remove unused interrupt handlers; keembay_pcie_ev_irq_handler(),
    keembay_pcie_err_irq_handler().
  - Remove keembay_pcie_enable_interrupts().
  - Rework keembay_pcie_setup_irq() and call it from
    keembay_pcie_probe().
  - Remove keembay_pcie_host_init() and make keembay_pcie_host_ops
    empty.
  - Keep and rework keembay_pcie_add_pcie_port() a little.
  - Remove keembay_pcie_add_pcie_ep() and call dw_pcie_ep_init() from
    keembay_pcie_probe().
  - In keembay_pcie_probe(), remove dbi setup as it will be handled in
    dwc common code.
  - In keembay_pcie_link_up(), use return (val &
    PCIE_REGS_PCIE_SII_LINK_UP) == PCIE_REGS_PCIE_SII_LINK_UP.
  - In keembay_pcie_ep_raise_irq(), rework error message for
    PCI_EPC_IRQ_LEGACY and default cases.
- Rebased to next-20201124, that has dwc pci refactoring,
  https://lore.kernel.org/linux-pci/20201105211159.1814485-1-robh@kernel.org/.

Srikanth Thokala (2):
  dt-bindings: PCI: Add Intel Keem Bay PCIe controller
  PCI: keembay: Add support for Intel Keem Bay

 .../bindings/pci/intel,keembay-pcie-ep.yaml   |  69 +++
 .../bindings/pci/intel,keembay-pcie.yaml      |  97 ++++
 MAINTAINERS                                   |   7 +
 drivers/pci/controller/dwc/Kconfig            |  28 ++
 drivers/pci/controller/dwc/Makefile           |   1 +
 drivers/pci/controller/dwc/pcie-keembay.c     | 451 ++++++++++++++++++
 6 files changed, 653 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/intel,keembay-pcie-ep.yaml
 create mode 100644 Documentation/devicetree/bindings/pci/intel,keembay-pcie.yaml
 create mode 100644 drivers/pci/controller/dwc/pcie-keembay.c


base-commit: 45dfb8a5659ad286c28fa59008271dbc4e5e3f2d
-- 
2.17.1


             reply	other threads:[~2021-01-24 15:54 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-24 23:47 srikanth.thokala [this message]
2021-01-24 23:47 ` [PATCH v7 1/2] dt-bindings: PCI: Add Intel Keem Bay PCIe controller srikanth.thokala
2021-02-10  0:42   ` Krzysztof Wilczyński
2021-02-17  6:03     ` Thokala, Srikanth
2021-01-24 23:47 ` [PATCH v7 2/2] PCI: keembay: Add support for Intel Keem Bay srikanth.thokala
2021-02-09 19:01   ` Thokala, Srikanth
2021-02-10  0:36   ` Krzysztof Wilczyński

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210124234702.21074-1-srikanth.thokala@intel.com \
    --to=srikanth.thokala@intel.com \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=bhelgaas@google.com \
    --cc=devicetree@vger.kernel.org \
    --cc=lakshmi.bai.raja.subramanian@intel.com \
    --cc=linux-pci@vger.kernel.org \
    --cc=lorenzo.pieralisi@arm.com \
    --cc=mallikarjunappa.sangannavar@intel.com \
    --cc=mgross@linux.intel.com \
    --cc=robh+dt@kernel.org \
    --subject='Re: [PATCH v7 0/2] PCI: keembay: Add support for Intel Keem Bay' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).