Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
dmaengine: cppi41: add missing bitfields
Add missing directions, residue_granularity,
srd_addr_widths and dst_addr_widths bitfields.
Without those we will see a kernel WARN()
when loading musb on am335x devices.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
authored by Felipe Balbi and committed by Vinod Koul ffeb13aa fbef403a
+9
drivers/dma/cppi41.c
+9
drivers/dma/cppi41.c
···
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return of_id->data;
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}
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+
#define CPPI41_DMA_BUSWIDTHS (BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \
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BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \
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BIT(DMA_SLAVE_BUSWIDTH_3_BYTES) | \
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BIT(DMA_SLAVE_BUSWIDTH_4_BYTES))
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static int cppi41_dma_probe(struct platform_device *pdev)
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{
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struct cppi41_dd *cdd;
···
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cdd->ddev.device_issue_pending = cppi41_dma_issue_pending;
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cdd->ddev.device_prep_slave_sg = cppi41_dma_prep_slave_sg;
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cdd->ddev.device_terminate_all = cppi41_stop_chan;
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cdd->ddev.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
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cdd->ddev.src_addr_widths = CPPI41_DMA_BUSWIDTHS;
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cdd->ddev.dst_addr_widths = CPPI41_DMA_BUSWIDTHS;
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cdd->ddev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
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cdd->ddev.dev = dev;
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INIT_LIST_HEAD(&cdd->ddev.channels);
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cpp41_dma_info.dma_cap = cdd->ddev.cap_mask;