linux-kernel - Re: [PATCH v3 1/6] drm/vc4: select PM

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Message-ID: <CAPY8ntAohBfUXhiQix9qd8434J0D1h66kNFJ1a=_aHYAWmo9DQ@mail.gmail.com>
Date:   Fri, 10 Sep 2021 14:40:12 +0100
From:   Dave Stevenson <dave.stevenson@...pberrypi.com>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     DRI Development <dri-devel@...ts.freedesktop.org>,
        Daniel Vetter <daniel.vetter@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        LKML <linux-kernel@...r.kernel.org>,
        Phil Elwell <phil@...pberrypi.com>,
        Tim Gover <tim.gover@...pberrypi.com>,
        Dom Cobley <dom@...pberrypi.com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        linux-rpi-kernel@...ts.infradead.org,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        bcm-kernel-feedback-list@...adcom.com,
        Emma Anholt <emma@...olt.net>,
        Nicolas Saenz Julienne <nsaenz@...nel.org>,
        Maxime Ripard <mripard@...nel.org>
Subject: Re: [PATCH v3 1/6] drm/vc4: select PM

On Thu, 19 Aug 2021 at 14:59, Maxime Ripard <maxime@...no.tech> wrote:
>
> We already depend on runtime PM to get the power domains and clocks for
> most of the devices supported by the vc4 driver, so let's just select it
> to make sure it's there, and remove the ifdef.
>
> Signed-off-by: Maxime Ripard <maxime@...no.tech>

Reviewed-by: Dave Stevenson <dave.stevenson@...pberrypi.com>

> ---
>  drivers/gpu/drm/vc4/Kconfig    | 1 +
>  drivers/gpu/drm/vc4/vc4_hdmi.c | 2 --
>  2 files changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/vc4/Kconfig b/drivers/gpu/drm/vc4/Kconfig
> index 118e8a426b1a..f774ab340863 100644
> --- a/drivers/gpu/drm/vc4/Kconfig
> +++ b/drivers/gpu/drm/vc4/Kconfig
> @@ -9,6 +9,7 @@ config DRM_VC4
>         select DRM_KMS_CMA_HELPER
>         select DRM_GEM_CMA_HELPER
>         select DRM_PANEL_BRIDGE
> +       select PM
>         select SND_PCM
>         select SND_PCM_ELD
>         select SND_SOC_GENERIC_DMAENGINE_PCM
> diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
> index c2876731ee2d..602203b2d8e1 100644
> --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
> +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
> @@ -2107,7 +2107,6 @@ static int vc5_hdmi_init_resources(struct vc4_hdmi *vc4_hdmi)
>         return 0;
>  }
>
> -#ifdef CONFIG_PM
>  static int vc4_hdmi_runtime_suspend(struct device *dev)
>  {
>         struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
> @@ -2128,7 +2127,6 @@ static int vc4_hdmi_runtime_resume(struct device *dev)
>
>         return 0;
>  }
> -#endif
>
>  static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
>  {
> --
> 2.31.1
>