[alsa-devel] [PATCH v2 1/5] dmaengine: mmp_tdma: add mmp tdma support

zhangfei gao zhangfei.gao at gmail.com
Tue Jun 19 08:21:27 EDT 2012


On Thu, Jun 14, 2012 at 6:43 PM, Vinod Koul <vinod.koul at linux.intel.com> wrote:
> On Mon, 2012-06-11 at 18:04 +0800, Zhangfei Gao wrote:
>> +static int mmp_tdma_clear_chan_irq(struct mmp_tdma_chan *tdmac)
>> +{
>> +       u32 reg = readl(tdmac->reg_base + TDISR);
>> +
>> +       if (reg & TDISR_COMP) {
>> +               /* clear irq */
>> +               reg &= ~TDISR_COMP;
>> +               writel(reg, tdmac->reg_base + TDISR);
>> +
>> +               return 0;
>> +       }
>> +       return -1;
>> +}
> -1?
> Please return a proper linux error code.
>
>
> --
> ~Vinod

Hi, Vinod

The patch is updated, would you mind take a look, thanks.



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