linux-kernel - Re: [PATCH] drm/msm/a6xx: add CONFIG

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Message-ID: <CAPDyKFok_k=M8-g4kgm+5CT7vzrqfbZYfLWCD1oU3W6r-2fsog@mail.gmail.com>
Date:   Fri, 24 Mar 2023 16:59:48 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Arnd Bergmann <arnd@...db.de>, Sean Paul <sean@...rly.run>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/msm/a6xx: add CONFIG_PM dependency

On Fri, 24 Mar 2023 at 10:55, Arnd Bergmann <arnd@...nel.org> wrote:
>
> From: Arnd Bergmann <arnd@...db.de>
>
> Selecting CONFIG_PM_GENERIC_DOMAINS causes a build failure when CONFIG_PM
> is not enabled:
>
> WARNING: unmet direct dependencies detected for PM_GENERIC_DOMAINS
>   Depends on [n]: PM [=n]
>   Selected by [m]:
>   - DRM_MSM [=m] && HAS_IOMEM [=y] && DRM [=m] && (ARCH_QCOM [=y] || SOC_IMX5 || COMPILE_TEST [=y]) && COMMON_CLK [=y] && IOMMU_SUPPORT [=y] && (QCOM_OCMEM [=y] || QCOM_OCMEM [=y]=n) && (QCOM_LLCC [=n] || QCOM_LLCC [=n]=n) && (QCOM_COMMAND_DB [=y] || QCOM_COMMAND_DB [=y]=n) && DEVFREQ_GOV_SIMPLE_ONDEMAND [=y]
>
> drivers/base/power/domain.c:654:13: error: use of undeclared identifier 'pm_wq'
>         queue_work(pm_wq, &genpd->power_off_work);
>                    ^
> drivers/base/power/domain.c:853:26: error: no member named 'ignore_children' in 'struct dev_pm_info'
>                 if (!dev || dev->power.ignore_children)
>                             ~~~~~~~~~~ ^
>
> Fixes: c11fa1204fe9 ("drm/msm/a6xx: Use genpd notifier to ensure cx-gdsc collapse")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>

Kind regards
Uffe

> ---
>  drivers/gpu/drm/msm/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
> index 1c417ba53b5b..85f5ab1d552c 100644
> --- a/drivers/gpu/drm/msm/Kconfig
> +++ b/drivers/gpu/drm/msm/Kconfig
> @@ -9,6 +9,7 @@ config DRM_MSM
>         depends on QCOM_OCMEM || QCOM_OCMEM=n
>         depends on QCOM_LLCC || QCOM_LLCC=n
>         depends on QCOM_COMMAND_DB || QCOM_COMMAND_DB=n
> +       depends on PM
>         select IOMMU_IO_PGTABLE
>         select QCOM_MDT_LOADER if ARCH_QCOM
>         select REGULATOR
> --
> 2.39.2
>