Re: [PATCH 2/2] soc: qcom: stats: Mark device as having no PM support

From: Konrad Dybcio
Date: Sat Oct 15 2022 - 07:15:37 EST




On 15.10.2022 02:46, Stephen Boyd wrote:
> This driver purely exposes information from memory to the kernel. Let's
> mark it as not having any device PM functionality, so that during
> suspend we skip even trying to call a suspend function on this device.
> This clears up suspend logs more than anything else, but it also shaves
> a few cycles off suspend.
>
> Cc: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
> Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>

Konrad
> drivers/soc/qcom/qcom_stats.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/soc/qcom/qcom_stats.c b/drivers/soc/qcom/qcom_stats.c
> index d6bfd1bbdc2a..d89453a77408 100644
> --- a/drivers/soc/qcom/qcom_stats.c
> +++ b/drivers/soc/qcom/qcom_stats.c
> @@ -217,6 +217,8 @@ static int qcom_stats_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, root);
>
> + device_set_pm_not_required(&pdev->dev);
> +
> return 0;
> }
>