linux-kernel - [PATCH 0/8] Add eDMAv3 support for S32G2/S32G3 SoCs

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Message-ID: <20241216075819.2066772-1-larisa.grigore@oss.nxp.com>
Date: Mon, 16 Dec 2024 09:58:10 +0200
From: Larisa Grigore <larisa.grigore@....nxp.com>
To: Frank.Li@....com
Cc: dmaengine@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	s32@....com,
	Christophe Lizzi <clizzi@...hat.com>,
	Alberto Ruiz <aruizrui@...hat.com>,
	Enric Balletbo <eballetb@...hat.com>,
	Larisa Grigore <larisa.grigore@....nxp.com>
Subject: [PATCH 0/8] Add eDMAv3 support for S32G2/S32G3 SoCs

S32G2 and S32G3 SoCs share the eDMAv3 module with i.MX SoCs, with some hardware
integration particularities.

S32G2/S32G3 includes two system eDMA instances based on v3 version, each of
them integrated with 2 DMAMUX blocks.
Another particularity of these SoCs is that the interrupts are shared between
channels as follows:
- DMA Channels 0-15 share the 'tx-0-15' interrupt
- DMA Channels 16-31 share the 'tx-16-31' interrupt
- all channels share the 'err' interrupt

Larisa Grigore (8):
  dmaengine: fsl-edma: select of_dma_xlate based on the dmamuxs presence
  dmaengine: fsl-edma: remove FSL_EDMA_DRV_SPLIT_REG check when parsing
    muxbase
  dmaengine: fsl-edma: move eDMAv2 related registers to a new structure
    ’edma2_regs’
  dmaengine: fsl-edma: add eDMAv3 registers to edma_regs
  dt-bindings: dma: fsl-edma: add nxp,s32g2-edma compatible string
  dmaengine: fsl-edma: add support for S32G based platforms
  dmaengine: fsl-edma: wait until no hardware request is in progress
  dmaengine: fsl-edma: read/write multiple registers in cyclic
    transactions

 .../devicetree/bindings/dma/fsl,edma.yaml     |  34 +++++
 drivers/dma/fsl-edma-common.c                 | 112 +++++++++-----
 drivers/dma/fsl-edma-common.h                 |  26 +++-
 drivers/dma/fsl-edma-main.c                   | 137 ++++++++++++++++--
 4 files changed, 257 insertions(+), 52 deletions(-)

-- 
2.47.0