[PATCH] dw_dmac: print out DW_PARAMS and DWC_PARAMS when debug

From: Andy Shevchenko
Date: Fri Jan 18 2013 - 10:10:57 EST


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@xxxxxxxxxxxxxxx>
---
drivers/dma/dw_dmac.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 1498b27..72e6316 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1610,6 +1610,8 @@ 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);
@@ -1723,6 +1725,9 @@ 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. */
--
1.7.10.4

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