[PATCH V17 2/3] dmaengine: qcom_hidma: add debugfs hooks

On Tue, Apr 26, 2016 at 08:08:16AM -0400, okaya at codeaurora.org wrote:

On 2016-04-25 23:30, Vinod Koul wrote:

quoted

On Mon, Apr 11, 2016 at 10:21:12AM -0400, Sinan Kaya wrote:

quoted

+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