linux-kernel - Re: [PATCH] drm/tilcdc: Convert drm_atomic_helper

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Message-ID: <CAFqt6zb=fUvFqF0BBBNJXnZjDQVGxaO-1oSZkokZRsR9eDR8YQ@mail.gmail.com>
Date:   Mon, 10 Sep 2018 13:37:17 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     jsarha@...com
Cc:     Tomi Valkeinen <tomi.valkeinen@...com>, airlied@...ux.ie,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Ajit Linux <ajitn.linux@...il.com>
Subject: Re: [PATCH] drm/tilcdc: Convert drm_atomic_helper_suspend/resume()

On Mon, Sep 10, 2018 at 1:11 PM Jyri Sarha <jsarha@...com> wrote:
>
> On 10/09/18 09:45, Souptick Joarder wrote:
> > On Wed, Aug 8, 2018 at 9:43 PM Souptick Joarder <jrdr.linux@...il.com> wrote:
> >>
> >> convert drm_atomic_helper_suspend/resume() to use
> >> drm_mode_config_helper_suspend/resume().
> >>
> >> saved_state in tilcdc_drm_private will not be used
> >> anymore, so it can be removed.
> >
> > Any comment on this patch ?
>
> I planned to test this out, but I did not find time to do that. But here
> is my:
>
> Reviewed-by: Jyri Sarha <jsarha@...com>
>
> I'll pick this up for my next pull request.
>

Thanks, Hopefully It will make into 4.20 :)

> BR,
> Jyri
>
> >>
> >> Signed-off-by: Ajit Negi <ajitn.linux@...il.com>
> >> Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
> >> ---
> >>  drivers/gpu/drm/tilcdc/tilcdc_drv.c | 14 ++++----------
> >>  drivers/gpu/drm/tilcdc/tilcdc_drv.h |  3 ---
> >>  2 files changed, 4 insertions(+), 13 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> >> index 0fb300d..33e5332 100644
> >> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> >> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> >> @@ -554,29 +554,23 @@ static int tilcdc_debugfs_init(struct drm_minor *minor)
> >>  static int tilcdc_pm_suspend(struct device *dev)
> >>  {
> >>         struct drm_device *ddev = dev_get_drvdata(dev);
> >> -       struct tilcdc_drm_private *priv = ddev->dev_private;
> >> +       int ret = 0;
> >>
> >> -       priv->saved_state = drm_atomic_helper_suspend(ddev);
> >> +       ret = drm_mode_config_helper_suspend(ddev);
> >>
> >>         /* Select sleep pin state */
> >>         pinctrl_pm_select_sleep_state(dev);
> >>
> >> -       return 0;
> >> +       return ret;
> >>  }
> >>
> >>  static int tilcdc_pm_resume(struct device *dev)
> >>  {
> >>         struct drm_device *ddev = dev_get_drvdata(dev);
> >> -       struct tilcdc_drm_private *priv = ddev->dev_private;
> >> -       int ret = 0;
> >>
> >>         /* Select default pin state */
> >>         pinctrl_pm_select_default_state(dev);
> >> -
> >> -       if (priv->saved_state)
> >> -               ret = drm_atomic_helper_resume(ddev, priv->saved_state);
> >> -
> >> -       return ret;
> >> +       return  drm_mode_config_helper_resume(ddev);
> >>  }
> >>  #endif
> >>
> >> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.h b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> >> index ead5122..62cea5f 100644
> >> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> >> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
> >> @@ -70,9 +70,6 @@ struct tilcdc_drm_private {
> >>         const uint32_t *pixelformats;
> >>         uint32_t num_pixelformats;
> >>
> >> -       /* The context for pm susped/resume cycle is stored here */
> >> -       struct drm_atomic_state *saved_state;
> >> -
> >>  #ifdef CONFIG_CPU_FREQ
> >>         struct notifier_block freq_transition;
> >>  #endif
> >> --
> >> 1.9.1
> >>
>
>
> --
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