iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dw_dmac: print out DW_PARAMS and DWC_PARAMS when debug

Browse Source 
It's usefull to have the values of the DW_PARAMS and DWC_PARAMS printed when
debug mode is enabled.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2013-01-18 17:10:59 +02:00 committed by Vinod Koul
parent 2b99c25921
commit 985a6c7dcf
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/dma/dw_dmac.c
View File

@ -1608,6 +1608,8 @@ static int dw_probe(struct platform_device *pdev)
dw_params = dma_read_byaddr(regs, DW_PARAMS);
autocfg = dw_params >> DW_PARAMS_EN & 0x1;
dev_dbg(&pdev->dev, "DW_PARAMS: 0x%08x\n", dw_params);
pdata = dev_get_platdata(&pdev->dev);
if (!pdata)
pdata = dw_dma_parse_dt(pdev);
@ -1721,6 +1723,9 @@ static int dw_probe(struct platform_device *pdev)
dwc_params = dma_read_byaddr(regs + r * sizeof(u32),
DWC_PARAMS);
dev_dbg(&pdev->dev, "DWC_PARAMS[%d]: 0x%08x\n", i,
dwc_params);
/* Decode maximum block size for given channel. The
* stored 4 bit value represents blocks from 0x00 for 3
* up to 0x0a for 4095. */