diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2012-06-19 13:34:03 +0300 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-06-21 08:05:34 +0530 |
| commit | 1d4554376549d50e8555e6617a4005623ea91788 (patch) | |
| tree | 331d1d0b31fef835920c6d32378a40315dd7211c /drivers/dma | |
| parent | 2f45d613ffae00d3355de7871d9cbfd0f2292971 (diff) | |
dw_dmac: introduce dwc_dump_chan_regs to dump registers
There is three places where values of the most significant registers were
printed. Make such piece of code as separate function.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw_dmac.c | 37 |
1 files changed, 16 insertions, 21 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 9794f00810f..467599a4b9b 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -191,6 +191,19 @@ static void dwc_initialize(struct dw_dma_chan *dwc) /*----------------------------------------------------------------------*/ +static void dwc_dump_chan_regs(struct dw_dma_chan *dwc) +{ + dev_err(chan2dev(&dwc->chan), + " SAR: 0x%x DAR: 0x%x LLP: 0x%x CTL: 0x%x:%08x\n", + channel_readl(dwc, SAR), + channel_readl(dwc, DAR), + channel_readl(dwc, LLP), + channel_readl(dwc, CTL_HI), + channel_readl(dwc, CTL_LO)); +} + +/*----------------------------------------------------------------------*/ + /* Called with dwc->lock held and bh disabled */ static void dwc_dostart(struct dw_dma_chan *dwc, struct dw_desc *first) { @@ -200,13 +213,7 @@ static void dwc_dostart(struct dw_dma_chan *dwc, struct dw_desc *first) if (dma_readl(dw, CH_EN) & dwc->mask) { dev_err(chan2dev(&dwc->chan), "BUG: Attempted to start non-idle channel\n"); - dev_err(chan2dev(&dwc->chan), - " SAR: 0x%x DAR: 0x%x LLP: 0x%x CTL: 0x%x:%08x\n", - channel_readl(dwc, SAR), - channel_readl(dwc, DAR), - channel_readl(dwc, LLP), - channel_readl(dwc, CTL_HI), - channel_readl(dwc, CTL_LO)); + dwc_dump_chan_regs(dwc); /* The tasklet will hopefully advance the queue... */ return; @@ -490,13 +497,7 @@ static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc, spin_lock_irqsave(&dwc->lock, flags); - dev_err(chan2dev(&dwc->chan), - " SAR: 0x%x DAR: 0x%x LLP: 0x%x CTL: 0x%x:%08x\n", - channel_readl(dwc, SAR), - channel_readl(dwc, DAR), - channel_readl(dwc, LLP), - channel_readl(dwc, CTL_HI), - channel_readl(dwc, CTL_LO)); + dwc_dump_chan_regs(dwc); channel_clear_bit(dw, CH_EN, dwc->mask); while (dma_readl(dw, CH_EN) & dwc->mask) @@ -1131,13 +1132,7 @@ int dw_dma_cyclic_start(struct dma_chan *chan) if (dma_readl(dw, CH_EN) & dwc->mask) { dev_err(chan2dev(&dwc->chan), "BUG: Attempted to start non-idle channel\n"); - dev_err(chan2dev(&dwc->chan), - " SAR: 0x%x DAR: 0x%x LLP: 0x%x CTL: 0x%x:%08x\n", - channel_readl(dwc, SAR), - channel_readl(dwc, DAR), - channel_readl(dwc, LLP), - channel_readl(dwc, CTL_HI), - channel_readl(dwc, CTL_LO)); + dwc_dump_chan_regs(dwc); spin_unlock_irqrestore(&dwc->lock, flags); return -EBUSY; } |