linux-kernel - [PATCH 00/10] can: grcan: Enhance driver with CANFD Support and Improvements

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Message-ID: <20251118092115.3455-1-arun.muthusamy@gaisler.com>
Date: Tue, 18 Nov 2025 10:21:05 +0100
From: Arun Muthusamy <arun.muthusamy@...sler.com>
To: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	mkl@...gutronix.de,
	mailhol@...nel.org
Cc: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-can@...r.kernel.org,
	Arun Muthusamy <arun.muthusamy@...sler.com>
Subject: [PATCH 00/10] can: grcan: Enhance driver with CANFD Support and Improvements

This patch series updates the GRCAN driver to support the GRCANFD core
from the GRLIB IP core library.

In addition to GRCANFD support, the updates include enhancements for
compatibility with NOEL-V (RISC-V) systems, such as matching drivers
using the 'compatible' identifier and adding support for reading clock
frequency via the common clock framework where available. The series
also includes improvements like functions for configuring
nominal bit-timing and optimizations for DMA operations.

This series also updates the driver documentation and bindings.
The old text binding is converted to YAML, a new vendor prefix
is added to reflect the updated ownership and an entry for the
driver is added to the MAINTAINERS file.

Arun Muthusamy (3):
  dt-bindings: net: can: grcan: Convert GRCAN CAN controllers binding
    from txt to YAML
  MAINTAINERS: Add maintainers for GRCAN CAN network driver
  can: grcan: Add CANFD support alongside legacy CAN

Daniel Hellstrom (6):
  can: grcan: Add clock handling
  can: grcan: add FD capability detection and nominal bit-timing
  can: grcan: optimize DMA by 32-bit accesses
  can: grcan: set DMA mask for GRCAN and GRCANFD to 32-bit
  can: grcan: Add saving and restoring of CAN FD baud-rate registers
  can: grcan: Reserve space between cap and next register to align with
    address layout

Ludwig Rydberg (1):
  dt-bindings: Add vendor prefix for Frontgrade Gaisler AB

 .../bindings/net/can/gaisler,grcan.yaml       |  85 ++++
 .../devicetree/bindings/net/can/grcan.txt     |  28 --
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 MAINTAINERS                                   |   8 +
 drivers/net/can/Kconfig                       |   6 +-
 drivers/net/can/grcan.c                       | 470 ++++++++++++++----
 6 files changed, 473 insertions(+), 126 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/can/gaisler,grcan.yaml
 delete mode 100644 Documentation/devicetree/bindings/net/can/grcan.txt


base-commit: 4001bda0cc911fcdd3dde36963a17f4eac173d7d
--
2.51.0