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Commit ffeb13aa authored by Felipe Balbi's avatar Felipe Balbi Committed by Vinod Koul
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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: default avatarFelipe Balbi <balbi@ti.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent fbef403a

drivers/dma/cppi41.c

+9 −0
Original line number Diff line number Diff line
@@ -903,6 +903,11 @@ static const struct cppi_glue_infos *get_glue_info(struct device *dev) 
	return of_id->data;

}



#define CPPI41_DMA_BUSWIDTHS	(BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \

				BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \

				BIT(DMA_SLAVE_BUSWIDTH_3_BYTES) | \

				BIT(DMA_SLAVE_BUSWIDTH_4_BYTES))



static int cppi41_dma_probe(struct platform_device *pdev)

{

	struct cppi41_dd *cdd;
@@ -926,6 +931,10 @@ static int cppi41_dma_probe(struct platform_device *pdev) 
	cdd->ddev.device_issue_pending = cppi41_dma_issue_pending;

	cdd->ddev.device_prep_slave_sg = cppi41_dma_prep_slave_sg;

	cdd->ddev.device_terminate_all = cppi41_stop_chan;

	cdd->ddev.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);

	cdd->ddev.src_addr_widths = CPPI41_DMA_BUSWIDTHS;

	cdd->ddev.dst_addr_widths = CPPI41_DMA_BUSWIDTHS;

	cdd->ddev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;

	cdd->ddev.dev = dev;

	INIT_LIST_HEAD(&cdd->ddev.channels);

	cpp41_dma_info.dma_cap = cdd->ddev.cap_mask;