On Mon, Nov 9, 2015 at 3:23 PM, Jon Hunter <jonathanh@xxxxxxxxxx> wrote:
> The tegra-apb DMA driver enables runtime-pm but never calls
> pm_runtime_get/put and hence the runtime-pm callbacks are never invoked.
> The driver manages the clocks by directly calling clk_prepare_enable()
> and clk_unprepare_disable().
>
> Fix this by replacing the clk_prepare_enable() and clk_disable_unprepare()
> with pm_runtime_get_sync() and pm_runtime_put(), respectively. Note that
> the consequence of this is that if runtime-pm is disabled, then the clocks
> will remain on the entire time the driver is loaded. However, if
> runtime-pm is disabled, then power is not most likely not a concern.
Nitpick
> @@ -1539,11 +1534,10 @@ static int tegra_dma_runtime_resume(struct device *dev)
> static int tegra_dma_pm_suspend(struct device *dev)
> {
> struct tegra_dma *tdma = dev_get_drvdata(dev);
> - int i;
> - int ret;
> + int i, ret;
> static int tegra_dma_pm_resume(struct device *dev)
> {
> struct tegra_dma *tdma = dev_get_drvdata(dev);
> - int i;
> - int ret;
> + int i, ret;
Do you really need that?
--
With Best Regards,
Andy Shevchenko
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