[v6,0/3] Add RZ/G2L DMAC support

Message ID	20210802120500.7635-1-biju.das.jz@bp.renesas.com (mailing list archive)
Headers	show Return-Path: <dmaengine-owner@kernel.org> From: Biju Das <biju.das.jz@bp.renesas.com> To: Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org> Cc: Biju Das <biju.das.jz@bp.renesas.com>, Chris Brandt <chris.brandt@renesas.com>, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, Geert Uytterhoeven <geert+renesas@glider.be>, Chris Paterson <Chris.Paterson2@renesas.com>, Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>, linux-renesas-soc@vger.kernel.org Subject: [PATCH v6 0/3] Add RZ/G2L DMAC support Date: Mon, 2 Aug 2021 13:04:57 +0100 Message-Id: <20210802120500.7635-1-biju.das.jz@bp.renesas.com> Precedence: bulk
Series	Add RZ/G2L DMAC support \| expand [v6,0/3] Add RZ/G2L DMAC support [v6,1/3] dt-bindings: dma: Document RZ/G2L bindings [v6,2/3] dmaengine: Extend the dma_slave_width for 128 bytes [v6,3/3] drivers: dma: sh: Add DMAC driver for RZ/G2L SoC

Message ID

20210802120500.7635-1-biju.das.jz@bp.renesas.com (mailing list archive)

Headers

From: Biju Das <biju.das.jz@bp.renesas.com>
To: Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
        Chris Brandt <chris.brandt@renesas.com>,
        dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Chris Paterson <Chris.Paterson2@renesas.com>,
        Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
        linux-renesas-soc@vger.kernel.org
Subject: [PATCH v6 0/3] Add RZ/G2L DMAC support
Date: Mon,  2 Aug 2021 13:04:57 +0100
Message-Id: <20210802120500.7635-1-biju.das.jz@bp.renesas.com>
Precedence: bulk

Series

Add RZ/G2L DMAC support | expand

Message

Biju Das Aug. 2, 2021, 12:04 p.m. UTC

This patch series aims to add DMAC support on RZ/G2L SoC's.

It is based on the work done by Chris Brandt for RZ/A DMA driver.

v5->v6:
* Added Rb tag from Rob for binding patch
* Fixed dma_addr_t and size_t format specifier issue reported by
kernel test robot
* Started using ARRAY_SIZE macro instead of magic number in
rz_dmac_ds_to_val_mapping function.

v4->v5:
* Passing legacy slave channel configuration parameters using dmaengine_slave_config is prohibited.
So started passing this parameters in DT instead, by encoding MID/RID values with channel parameters
in the #dma-cells.
* Removed Rb tag's of Geert and Rob since there is a modification in binding patch
* Added 128 byte slave bus width support
* Removed SoC dtsi and Defconfig patch from this series. Will send as separate patch.

Ref:-
https://lore.kernel.org/linux-renesas-soc/20210719092535.4474-1-biju.das.jz@bp.renesas.com/T/#ma0b261df6d4400882204aaaaa014ddb59c479db4

v3->v4:
* Added Rob's Rb tag for binding patch.
* Incorporated Vinod and Geert's review comments.
v2->v3:
* Described clocks and resets in binding file as per Rob's feedback.

v1->v2
* Started using virtual DMAC
* Added Geert's Rb tag for binding patch.

Biju Das (3):
dt-bindings: dma: Document RZ/G2L bindings
dmaengine: Extend the dma_slave_width for 128 bytes
drivers: dma: sh: Add DMAC driver for RZ/G2L SoC

.../bindings/dma/renesas,rz-dmac.yaml | 130 +++
drivers/dma/sh/Kconfig | 9 +
drivers/dma/sh/Makefile | 1 +
drivers/dma/sh/rz-dmac.c | 971 ++++++++++++++++++
include/linux/dmaengine.h | 3 +-
5 files changed, 1113 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/dma/renesas,rz-dmac.yaml
create mode 100644 drivers/dma/sh/rz-dmac.c