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Fri, 05 Jun 2026 15:01:52 -0700 (PDT) Received: from ryzen ([2601:644:8000:5b5d:7285:c2ff:fe45:8a32]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-842824a1cb4sm12518883b3a.26.2026.06.05.15.01.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Jun 2026 15:01:50 -0700 (PDT) From: Rosen Penev To: dmaengine@vger.kernel.org Cc: Vinod Koul , Frank Li , Zhang Wei , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , 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: [PATCH 00/10] dmaengine: fsldma: devm conversion, fixups, and cleanups Date: Fri, 5 Jun 2026 15:01:24 -0700 Message-ID: <20260605220134.43295-1-rosenp@gmail.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Convert the Freescale Elo DMA driver to use managed device resources (devm), simplifying probe error handling and the remove path by dropping explicit iounmap, kfree, and free_irq calls. While doing so, fix a few issues uncovered along the way: - 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. Rosen Penev (10): dmaengine: fsldma: kill tasklet before removing channel dmaengine: fsldma: check dma_async_device_register() return value dmaengine: fsldma: convert to platform_get_irq_optional() dmaengine: fsldma: convert to devm_kzalloc and fix error path dmaengine: fsldma: convert ioremap to devm_platform_ioremap_resource dmaengine: fsldma: convert channel allocation to devm_kzalloc dmaengine: fsldma: convert channel ioremap to devm_of_iomap dmaengine: fsldma: replace irq_of_parse_and_map with of_irq_get dmaengine: fsldma: convert to devm_request_irq dmaengine: fsldma: replace ppc-specific accessors with portable generic ones drivers/dma/Kconfig | 2 +- drivers/dma/fsldma.c | 139 +++++++++++++------------------------------ drivers/dma/fsldma.h | 35 ++++++++++- 3 files changed, 76 insertions(+), 100 deletions(-) -- 2.54.0