On 09/11/15 13:57, Andy Shevchenko wrote:
> On Mon, Nov 9, 2015 at 3:23 PM, Jon Hunter <jonath...@nvidia.com> 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?
Rhetorical question? ;-)
I can drop that.
Jon
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