linux-kernel - [PATCH 0/3] Add support for ACSPCIE refclk output on J784S4-EVM

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Message-ID: <20240715120936.1150314-1-s-vadapalli@ti.com>
Date: Mon, 15 Jul 2024 17:39:33 +0530
From: Siddharth Vadapalli <s-vadapalli@...com>
To: <lee@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <lpieralisi@...nel.org>, <kw@...ux.com>,
        <bhelgaas@...gle.com>, <vigneshr@...com>, <kishon@...nel.org>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-pci@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <srk@...com>, <s-vadapalli@...com>
Subject: [PATCH 0/3] Add support for ACSPCIE refclk output on J784S4-EVM

Hello,

This series adds support to drive out the reference clock required by
the PCIe Endpoint device using the ACSPCIE buffer.

Series is based on linux-next tagged next-20240715.

Series has been tested with the following device-tree change:
https://gist.github.com/Siddharth-Vadapalli-at-TI/8206ea3a89753c309e4c82d825c75dae
on J784S4-EVM with an NVMe SSD connected to the PCIe connector
corresponding to the PCIe1 instance of PCIe. Logs:
https://gist.github.com/Siddharth-Vadapalli-at-TI/d825068cfe55bba7a869469c1ef64ddd

Regards,
Siddharth.

Siddharth Vadapalli (3):
  dt-bindings: mfd: syscon: Add ti,j784s4-acspcie-proxy-ctrl compatible
  dt-bindings: PCI: ti,j721e-pci-host: Add ACSPCIE proxy control
    property
  PCI: j721e: Add support for enabling ACSPCIE PAD IO Buffer output

 .../devicetree/bindings/mfd/syscon.yaml       |  1 +
 .../bindings/pci/ti,j721e-pci-host.yaml       | 10 ++++++
 drivers/pci/controller/cadence/pci-j721e.c    | 33 +++++++++++++++++++
 3 files changed, 44 insertions(+)

-- 
2.40.1