On 6/13/2023 7:39 PM, Mark Brown wrote:
On Wed, Jun 14, 2023 at 06:01:59AM +0530, Arun Gopal Kondaveeti wrote:
Replace pm_runtime_allow() with pm_runtime_mark_last_busy()
& pm_runtime_set_active() in pm_runtime enable sequence for
dma drivers.
This says what the change does but it doesn't say why the old sequence
was a problem and the new one is better.
pm_runtime_allow is not needed for child platform drivers .
Previous sequence as listed below which is incorrect.
enable sequence:
pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(&pdev->dev);
pm_runtime_enable(&pdev->dev);
pm_runtime_allow(&pdev->dev);
disable sequence:
pm_runtime_disable(&pdev->dev)
Replaced pm runtime enable sequence.
