[PATCH 11/24] drm/arc: Stop using drm_device->dev_private

[Daniel Vetter]

On Fri, Sep 4, 2020 at 4:40 PM Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
>
> Upcasting using a container_of macro is more typesafe, faster and
> easier for the compiler to optimize.
>
> Cc: Eugeniy Paltsev <Eugeniy.Paltsev at synopsys.com>
> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
> Cc: Alexey Brodkin <abrodkin at synopsys.com>

>From the old thread Sam just confirmed he's ok with dev_to_arcpgu:

Acked-by: Sam Ravnborg <sam at ravnborg.org>

Cheers, Daniel

> ---
>  drivers/gpu/drm/arc/arcpgu.h      | 2 ++
>  drivers/gpu/drm/arc/arcpgu_crtc.c | 4 ++--
>  drivers/gpu/drm/arc/arcpgu_drv.c  | 4 +---
>  3 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/arc/arcpgu.h b/drivers/gpu/drm/arc/arcpgu.h
> index cd9e932f501e..87821c91a00c 100644
> --- a/drivers/gpu/drm/arc/arcpgu.h
> +++ b/drivers/gpu/drm/arc/arcpgu.h
> @@ -17,6 +17,8 @@ struct arcpgu_drm_private {
>         struct drm_plane        *plane;
>  };
>
> +#define dev_to_arcpgu(x) container_of(x, struct arcpgu_drm_private, drm)
> +
>  #define crtc_to_arcpgu_priv(x) container_of(x, struct arcpgu_drm_private, crtc)
>
>  static inline void arc_pgu_write(struct arcpgu_drm_private *arcpgu,
> diff --git a/drivers/gpu/drm/arc/arcpgu_crtc.c b/drivers/gpu/drm/arc/arcpgu_crtc.c
> index be7c29cec318..ba796a216244 100644
> --- a/drivers/gpu/drm/arc/arcpgu_crtc.c
> +++ b/drivers/gpu/drm/arc/arcpgu_crtc.c
> @@ -178,7 +178,7 @@ static const struct drm_plane_funcs arc_pgu_plane_funcs = {
>
>  static struct drm_plane *arc_pgu_plane_init(struct drm_device *drm)
>  {
> -       struct arcpgu_drm_private *arcpgu = drm->dev_private;
> +       struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);
>         struct drm_plane *plane = NULL;
>         int ret;
>
> @@ -202,7 +202,7 @@ static struct drm_plane *arc_pgu_plane_init(struct drm_device *drm)
>
>  int arc_pgu_setup_crtc(struct drm_device *drm)
>  {
> -       struct arcpgu_drm_private *arcpgu = drm->dev_private;
> +       struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);
>         struct drm_plane *primary;
>         int ret;
>
> diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c
> index 68eb4a31c54b..c6a8deb56b0f 100644
> --- a/drivers/gpu/drm/arc/arcpgu_drv.c
> +++ b/drivers/gpu/drm/arc/arcpgu_drv.c
> @@ -50,8 +50,6 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
>         struct resource *res;
>         int ret;
>
> -       drm->dev_private = arcpgu;
> -
>         arcpgu->clk = devm_clk_get(drm->dev, "pxlclk");
>         if (IS_ERR(arcpgu->clk))
>                 return PTR_ERR(arcpgu->clk);
> @@ -120,7 +118,7 @@ static int arcpgu_show_pxlclock(struct seq_file *m, void *arg)
>  {
>         struct drm_info_node *node = (struct drm_info_node *)m->private;
>         struct drm_device *drm = node->minor->dev;
> -       struct arcpgu_drm_private *arcpgu = drm->dev_private;
> +       struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);
>         unsigned long clkrate = clk_get_rate(arcpgu->clk);
>         unsigned long mode_clock = arcpgu->crtc.mode.crtc_clock * 1000;
>
> --
> 2.28.0
>


-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch