On 13/03/2019 05:43, Sameer Pujar wrote:
> If the driver is active till late suspend, where runtime PM cannot run,
> force suspend is essential in such case to put the device in low power
> state. Thus pm_runtime_force_suspend and pm_runtime_force_resume are
> used as system sleep callbacks during system wide PM transitions.
>
> Signed-off-by: Sameer Pujar <spu...@nvidia.com>
> ---
> drivers/dma/tegra210-adma.c | 10 ++--------
> 1 file changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c
> index 650cd9c..be29171 100644
> --- a/drivers/dma/tegra210-adma.c
> +++ b/drivers/dma/tegra210-adma.c
> @@ -796,17 +796,11 @@ static int tegra_adma_remove(struct platform_device
> *pdev)
> return 0;
> }
>
> -#ifdef CONFIG_PM_SLEEP
> -static int tegra_adma_pm_suspend(struct device *dev)
> -{
> - return pm_runtime_suspended(dev) == false;
> -}
> -#endif
> -
> static const struct dev_pm_ops tegra_adma_dev_pm_ops = {
> SET_RUNTIME_PM_OPS(tegra_adma_runtime_suspend,
> tegra_adma_runtime_resume, NULL)
> - SET_SYSTEM_SLEEP_PM_OPS(tegra_adma_pm_suspend, NULL)
> + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
> + pm_runtime_force_resume)
> };
Looking at our downstream kernel we use LATE_SYSTEM_SLEEP for these. Any
reason why you changed this?
Cheers
Jon
--
nvpublic
