DMA Engine development
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From: Rosen Penev <rosenp@gmail.com>
To: dmaengine@vger.kernel.org
Cc: Vinod Koul <vkoul@kernel.org>, Frank Li <Frank.Li@kernel.org>,
	Zhang Wei <zw@zh-kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
	Bill Wendling <morbo@google.com>,
	Justin Stitt <justinstitt@google.com>,
	linux-kernel@vger.kernel.org (open list),
	linuxppc-dev@lists.ozlabs.org (open list:FREESCALE DMA DRIVER),
	llvm@lists.linux.dev (open list:CLANG/LLVM BUILD
	SUPPORT:Keyword:\b(?i:clang|llvm)\b)
Subject: [PATCHv4 00/15] dmaengine: fsldma: devm conversion, fixups, and cleanups
Date: Wed, 10 Jun 2026 20:52:30 -0700	[thread overview]
Message-ID: <20260611035245.13439-1-rosenp@gmail.com> (raw)

- Kill the channel tasklet before removal to prevent a race with
  the IRQ handler.
- Check the return value of dma_async_device_register() instead
  of silently returning success.
- Replace the powerpc-specific I/O accessors with portable
  generic ones so the driver can be built on non-powerpc
  architectures.

Build-tested with LLVM=1 ARCH=powerpc allmodconfig

v4: address review comments
v3: even more sashiko fixes
v2: add extra fixes to satisfy sashiko

Rosen Penev (15):
  dmaengine: fsldma: kill tasklet before removing channel
  dmaengine: fsldma: drop desc_lock before invoking client callback
  dmaengine: fsldma: halt DMA engine before freeing resources
  dmaengine: fsldma: provide device_release callback
  dmaengine: fsldma: check dma_async_device_register() return value
  dmaengine: fsldma: fix probe error path not freeing IRQs
  dmaengine: fsldma: fix request_irqs unwind freeing unregistered IRQ
  dmaengine: fsldma: convert to platform_get_irq_optional()
  dmaengine: fsldma: use devm_kzalloc() to simplify code
  dmaengine: fsldma: use devm_platform_ioremap_resource()
  dmaengine: fsldma: convert channel allocation to devm_kzalloc()
  dmaengine: fsldma: use devm_of_iomap() to simplify code
  dmaengine: fsldma: replace irq_of_parse_and_map with of_irq_get
  dmaengine: fsldma: replace ppc-specific accessors with portable
    generic ones
  dmaengine: fsldma: fix kernel-doc param names to match function
    signatures

 drivers/dma/Kconfig  |   2 +-
 drivers/dma/fsldma.c | 258 ++++++++++++++++++++++---------------------
 drivers/dma/fsldma.h |  35 +++++-
 3 files changed, 168 insertions(+), 127 deletions(-)

--
2.54.0


             reply	other threads:[~2026-06-11  3:53 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-11  3:52 Rosen Penev [this message]
2026-06-11  3:52 ` [PATCHv4 01/15] dmaengine: fsldma: kill tasklet before removing channel Rosen Penev
2026-06-11  4:05   ` sashiko-bot
2026-06-11  3:52 ` [PATCHv4 02/15] dmaengine: fsldma: drop desc_lock before invoking client callback Rosen Penev
2026-06-11  4:06   ` sashiko-bot
2026-06-11  3:52 ` [PATCHv4 03/15] dmaengine: fsldma: halt DMA engine before freeing resources Rosen Penev
2026-06-11  3:52 ` [PATCHv4 04/15] dmaengine: fsldma: provide device_release callback Rosen Penev
2026-06-11  4:02   ` sashiko-bot
2026-06-11  3:52 ` [PATCHv4 05/15] dmaengine: fsldma: check dma_async_device_register() return value Rosen Penev
2026-06-11  4:03   ` sashiko-bot
2026-06-11  3:52 ` [PATCHv4 06/15] dmaengine: fsldma: fix probe error path not freeing IRQs Rosen Penev
2026-06-11  3:52 ` [PATCHv4 07/15] dmaengine: fsldma: fix request_irqs unwind freeing unregistered IRQ Rosen Penev
2026-06-11  4:03   ` sashiko-bot
2026-06-11  3:52 ` [PATCHv4 08/15] dmaengine: fsldma: convert to platform_get_irq_optional() Rosen Penev
2026-06-11  3:52 ` [PATCHv4 09/15] dmaengine: fsldma: use devm_kzalloc() to simplify code Rosen Penev
2026-06-11  3:52 ` [PATCHv4 10/15] dmaengine: fsldma: use devm_platform_ioremap_resource() Rosen Penev
2026-06-11  3:52 ` [PATCHv4 11/15] dmaengine: fsldma: convert channel allocation to devm_kzalloc() Rosen Penev
2026-06-11  3:52 ` [PATCHv4 12/15] dmaengine: fsldma: use devm_of_iomap() to simplify code Rosen Penev
2026-06-11  3:52 ` [PATCHv4 13/15] dmaengine: fsldma: replace irq_of_parse_and_map with of_irq_get Rosen Penev
2026-06-11  4:07   ` sashiko-bot
2026-06-11  3:52 ` [PATCHv4 14/15] dmaengine: fsldma: replace ppc-specific accessors with portable generic ones Rosen Penev
2026-06-11  3:52 ` [PATCHv4 15/15] dmaengine: fsldma: fix kernel-doc param names to match function signatures Rosen Penev

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