linux-kernel - [PATCH v7 0/6] Fix support of dw-edma HDMA NATIVE IP in remote setup

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Message-Id: <20240129-b4-feature_hdma_mainline-v7-0-8e8c1acb7a46@bootlin.com>
Date: Mon, 29 Jan 2024 17:25:56 +0100
From: Kory Maincent <kory.maincent@...tlin.com>
To: Manivannan Sadhasivam <mani@...nel.org>, 
 Gustavo Pimentel <gustavo.pimentel@...opsys.com>, 
 Serge Semin <fancer.lancer@...il.com>, Vinod Koul <vkoul@...nel.org>, 
 Cai Huoqing <cai.huoqing@...ux.dev>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Herve Codina <herve.codina@...tlin.com>, 
 Kory Maincent <kory.maincent@...tlin.com>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH v7 0/6] Fix support of dw-edma HDMA NATIVE IP in remote
 setup

This patch series fix the support of dw-edma HDMA NATIVE IP.
I can only test it in remote HDMA IP setup with single dma transfer, but
with these fixes it works properly.

Few fixes has also been added for eDMA version. Similarly to HDMA I have
tested only eDMA in remote setup.

Changes in v2:
- Update comments and fix typos.
- Removed patches that tackle hypothetical bug and then were not pertinent.
- Add the similar HDMA race condition in remote setup fix to eDMA IP driver.

Changes in v3:
- Fix comment style.
- Split a patch in two to differ bug fix and simple harmless typo.

Changes in v4:
- Update patch git commit message.
- Link to v3: https://lore.kernel.org/r/20231011-b4-feature_hdma_mainline-v3-0-24ee0c979c6f@bootlin.com

Changes in v5:
- No change
- Rebase to mainline 6.7-rc1
- Link to v4: https://lore.kernel.org/r/20231011-b4-feature_hdma_mainline-v4-0-43d417b93138@bootlin.com

Changes in v6:
- Fix several commit messages and comments.
- Link to v5: https://lore.kernel.org/r/20231114-b4-feature_hdma_mainline-v5-0-7bc86d83c6f7@bootlin.com

Changes in v7:
- No change, ready for merge
- Rebase to mainline 6.8-rc2
- Link to v6: https://lore.kernel.org/r/20231117-b4-feature_hdma_mainline-v6-0-ebf7aa0e40d7@bootlin.com

Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
---
Kory Maincent (6):
      dmaengine: dw-edma: Fix the ch_count hdma callback
      dmaengine: dw-edma: Fix wrong interrupt bit set for HDMA
      dmaengine: dw-edma: HDMA_V0_REMOTEL_STOP_INT_EN typo fix
      dmaengine: dw-edma: Add HDMA remote interrupt configuration
      dmaengine: dw-edma: HDMA: Add sync read before starting the DMA transfer in remote setup
      dmaengine: dw-edma: eDMA: Add sync read before starting the DMA transfer in remote setup

 drivers/dma/dw-edma/dw-edma-v0-core.c | 17 +++++++++++++++
 drivers/dma/dw-edma/dw-hdma-v0-core.c | 39 +++++++++++++++++++++++------------
 drivers/dma/dw-edma/dw-hdma-v0-regs.h |  2 +-
 3 files changed, 44 insertions(+), 14 deletions(-)
---
base-commit: 41bccc98fb7931d63d03f326a746ac4d429c1dd3
change-id: 20231011-b4-feature_hdma_mainline-b6c57f8e3b5d

Best regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com