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| author | Frank Li <Frank.Li@nxp.com> | 2026-09-09 12:22:28 -0400 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2026-09-15 21:54:15 +0530 |
| commit | 75d8640d7f5f89d1a1c39ccb72166ada95fb38d2 (patch) | |
| tree | 2e0b963f64f33779906253b61012ce4b3ae765eb /drivers/dma | |
| parent | ff4dc66e80d2c31138a9ca31f1a4340dc4919d50 (diff) | |
| download | linux-next-75d8640d7f5f89d1a1c39ccb72166ada95fb38d2.tar.gz linux-next-75d8640d7f5f89d1a1c39ccb72166ada95fb38d2.zip | |
dmaengine: vchan: add vchan_chan_name() to get channel device name
Introduce vchan_chan_name() to obtain the DMA channel device name.
Use a dedicated helper instead of directly accessing dma_chan::dev
so callers remain unaffected by an upcoming rename of the struct member.
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Amelie Delaunay <amelie.delaunay@foss.st.com> # For STM32
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260909-dma-chan_dev-rename-v4-1-d8fb6892a70f@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/arm-dma350.c | 2 | ||||
| -rw-r--r-- | drivers/dma/loongson/loongson2-apb-cmc-dma.c | 2 | ||||
| -rw-r--r-- | drivers/dma/stm32/stm32-dma.c | 2 | ||||
| -rw-r--r-- | drivers/dma/stm32/stm32-dma3.c | 4 | ||||
| -rw-r--r-- | drivers/dma/virt-dma.h | 11 |
5 files changed, 16 insertions, 5 deletions
diff --git a/drivers/dma/arm-dma350.c b/drivers/dma/arm-dma350.c index 09403aca8bb0..52f5242ea332 100644 --- a/drivers/dma/arm-dma350.c +++ b/drivers/dma/arm-dma350.c @@ -512,7 +512,7 @@ static int d350_alloc_chan_resources(struct dma_chan *chan) { struct d350_chan *dch = to_d350_chan(chan); int ret = request_irq(dch->irq, d350_irq, IRQF_SHARED, - dev_name(&dch->vc.chan.dev->device), dch); + vchan_chan_name(&dch->vc), dch); if (!ret) writel_relaxed(CH_INTREN_DONE | CH_INTREN_ERR, dch->base + CH_INTREN); diff --git a/drivers/dma/loongson/loongson2-apb-cmc-dma.c b/drivers/dma/loongson/loongson2-apb-cmc-dma.c index 969dbc5dabe7..ed69688c8c05 100644 --- a/drivers/dma/loongson/loongson2-apb-cmc-dma.c +++ b/drivers/dma/loongson/loongson2-apb-cmc-dma.c @@ -678,7 +678,7 @@ static int loongson2_cmc_dma_probe(struct platform_device *pdev) return lchan->irq; ret = devm_request_irq(dev, lchan->irq, loongson2_cmc_dma_chan_irq, IRQF_SHARED, - dev_name(chan2dev(lchan)), lchan); + vchan_chan_name(&lchan->vchan), lchan); if (ret) return ret; } diff --git a/drivers/dma/stm32/stm32-dma.c b/drivers/dma/stm32/stm32-dma.c index d3ad78562a14..3e8151e2ad75 100644 --- a/drivers/dma/stm32/stm32-dma.c +++ b/drivers/dma/stm32/stm32-dma.c @@ -1668,7 +1668,7 @@ static int stm32_dma_probe(struct platform_device *pdev) ret = devm_request_irq(&pdev->dev, chan->irq, stm32_dma_chan_irq, 0, - dev_name(chan2dev(chan)), chan); + vchan_chan_name(&chan->vchan), chan); if (ret) { dev_err(&pdev->dev, "request_irq failed with err %d channel %d\n", diff --git a/drivers/dma/stm32/stm32-dma3.c b/drivers/dma/stm32/stm32-dma3.c index 4724e7fa0008..1ee1bd22703f 100644 --- a/drivers/dma/stm32/stm32-dma3.c +++ b/drivers/dma/stm32/stm32-dma3.c @@ -1892,10 +1892,10 @@ static int stm32_dma3_probe(struct platform_device *pdev) chan->irq = ret; ret = devm_request_irq(&pdev->dev, chan->irq, stm32_dma3_chan_irq, 0, - dev_name(chan2dev(chan)), chan); + vchan_chan_name(&chan->vchan), chan); if (ret) { dev_err_probe(&pdev->dev, ret, "Failed to request channel %s IRQ\n", - dev_name(chan2dev(chan))); + vchan_chan_name(&chan->vchan)); goto err_clk_disable; } } diff --git a/drivers/dma/virt-dma.h b/drivers/dma/virt-dma.h index 59d9eabc8b67..dd023a383120 100644 --- a/drivers/dma/virt-dma.h +++ b/drivers/dma/virt-dma.h @@ -210,6 +210,17 @@ static inline void vchan_free_chan_resources(struct virt_dma_chan *vc) } /** + * vchan_chan_name - Return vchan DMA channel device name + * @vc: virtual channel + * + * Return: The name of the DMA channel device + */ +static inline const char *vchan_chan_name(struct virt_dma_chan *vc) +{ + return dma_chan_name(&vc->chan); +} + +/** * vchan_synchronize() - synchronize callback execution to the current context * @vc: virtual channel to synchronize * |