p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

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>
This commit is contained in:
Felipe Balbi 2015-04-08 11:45:42 -05:00 committed by Vinod Koul
parent fbef403aa7
commit ffeb13aab6
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/dma/cppi41.c
View File

@ -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;