linux-kernel - [PATCH v1 0/5] PCI: tegra: A couple of cleanups

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Message-ID: <20250926072905.126737-1-linux.amoon@gmail.com>
Date: Fri, 26 Sep 2025 12:57:41 +0530
From: Anand Moon <linux.amoon@...il.com>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kwilczynski@...nel.org>,
	Manivannan Sadhasivam <mani@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	linux-pci@...r.kernel.org (open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-tegra@...r.kernel.org (open list:TEGRA ARCHITECTURE SUPPORT),
	linux-kernel@...r.kernel.org (open list)
Cc: Anand Moon <linux.amoon@...il.com>
Subject: [PATCH v1 0/5] PCI: tegra: A couple of cleanups

Hi All,

This small series provides two cleanup patches for the Tegra PCIe driver.
The overall goal is to replace custom, open-coded logic with standard
kernel helper functions.

These changes improve the driver's readability and maintainability by
everaging modern, well-tested APIs for clock management and register
polling.

v1 Added new devicetree binding nvidia,tegra-pcie.yaml file.
   Switch from devm_clk_bulk_get_all() -> devm_clk_bulk_get() api.
   Fixed checkpatch warnings.

Tested on Jetson Nano 4 GB ram.

RFC : https://lore.kernel.org/linux-tegra/20250831190055.7952-2-linux.amoon@gmail.com/

Thanks
-Anand

Anand Moon (5):
  dt-bindings: PCI: Convert the existing nvidia,tegra-pcie.txt bindings
    documentation into a YAML schema
  PCI: tegra: Simplify clock handling by using clk_bulk*() functions
  PCI: tegra: Use readl_poll_timeout() for link status polling
  PCI: tegra: Use BIT() and GENMASK() macros for register definitions
  PCI: tegra: Document map_lock and mask_lock usage

 .../bindings/pci/nvidia,tegra-pcie.yaml       | 651 +++++++++++++++++
 .../bindings/pci/nvidia,tegra20-pcie.txt      | 670 ------------------
 drivers/pci/controller/pci-tegra.c            | 268 ++++---
 3 files changed, 777 insertions(+), 812 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/nvidia,tegra-pcie.yaml
 delete mode 100644 Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt


base-commit: 4ff71af020ae59ae2d83b174646fc2ad9fcd4dc4
-- 
2.50.1