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SubjectRe: [PATCH V17 2/3] dmaengine: qcom_hidma: add debugfs hooks
On Tue, Apr 26, 2016 at 08:08:16AM -0400, okaya@codeaurora.org wrote:
> On 2016-04-25 23:30, Vinod Koul wrote:
> >On Mon, Apr 11, 2016 at 10:21:12AM -0400, Sinan Kaya wrote:
> >
> >>+static int hidma_chan_stats(struct seq_file *s, void *unused)
> >>+{
> >>+ struct hidma_chan *mchan = s->private;
> >>+ struct hidma_desc *mdesc;
> >>+ struct hidma_dev *dmadev = mchan->dmadev;
> >>+
> >>+ pm_runtime_get_sync(dmadev->ddev.dev);
> >
> >debug shouldn't power up device, why do you want to do that
>
>
> Clocks are turned off while the hw is idle. I can’t reach hw
> registers without restoring power.

Hmm, have you thought about using regmap?

--
~Vinod

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