linux-kernel - Re: [PATCH] interconnect: qcom: msm8939: Use icc_sync

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Message-ID: <05a7c1cc-c8f4-9303-2498-ba8709c72b4b@kernel.org>
Date:   Thu, 28 Apr 2022 10:19:55 +0300
From:   Georgi Djakov <djakov@...nel.org>
To:     Leo Yan <leo.yan@...aro.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] interconnect: qcom: msm8939: Use icc_sync_state

On 16.04.22 4:26, Leo Yan wrote:
> It's fashion to use the icc_sync_state callback to notify the framework
> when all consumers are probed, so that the bandwidth request doesn't
> need to stay on maximum value.
> 
> Do the same thing for msm8939 driver.

I assume that you tested this with some out of tree DT? Is it public?
If the consumers are not described as such in DT and/or the support
in the client drivers is missing, paths might get disabled.

Thanks,
Georgi

> Signed-off-by: Leo Yan <leo.yan@...aro.org>
> ---
>   drivers/interconnect/qcom/msm8939.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/interconnect/qcom/msm8939.c b/drivers/interconnect/qcom/msm8939.c
> index f9c2d7d3100d..ca5f611d33b0 100644
> --- a/drivers/interconnect/qcom/msm8939.c
> +++ b/drivers/interconnect/qcom/msm8939.c
> @@ -1423,6 +1423,7 @@ static struct platform_driver msm8939_noc_driver = {
>   	.driver = {
>   		.name = "qnoc-msm8939",
>   		.of_match_table = msm8939_noc_of_match,
> +		.sync_state = icc_sync_state,
>   	},
>   };
>   module_platform_driver(msm8939_noc_driver);