[PATCH 46/59] drm/arc: Align with simple pipe helpers

[Sam Ravnborg]

Hi Daniel.

On Wed, Apr 15, 2020 at 09:40:21AM +0200, Daniel Vetter wrote:
> Simple pipe helpers only have an enable and disable hook, no more
> mode_set_nofb. Call it from our enable hook to align with that
> conversions.
> 
> Atomic helpers always call mode_set_nofb and enable together, so
> there's no functional change here.
Hmmm....

mode_set_nofb() is only called from drm_atomic_helper - crtc_set_mode()
crtc_set_mode() is only called from drm_atomic_helper_commit_modeset_disables()
drm_atomic_helper_commit_modeset_disables() is called from drm_atomic_helper_commit_tail()

So it seems you are right.

> 
> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
> Cc: Alexey Brodkin <abrodkin at synopsys.com>
Acked-by: Sam Ravnborg <sam at ravnborg.org>


> ---
>  drivers/gpu/drm/arc/arcpgu_crtc.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/arc/arcpgu_crtc.c b/drivers/gpu/drm/arc/arcpgu_crtc.c
> index 72719556debb..c7769edeefdf 100644
> --- a/drivers/gpu/drm/arc/arcpgu_crtc.c
> +++ b/drivers/gpu/drm/arc/arcpgu_crtc.c
> @@ -73,10 +73,9 @@ static enum drm_mode_status arc_pgu_crtc_mode_valid(struct drm_crtc *crtc,
>  	return MODE_NOCLOCK;
>  }
>  
> -static void arc_pgu_crtc_mode_set_nofb(struct drm_crtc *crtc)
> +static void arc_pgu_mode_set(struct arcpgu_drm_private *arcpgu)
>  {
> -	struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
> -	struct drm_display_mode *m = &crtc->state->adjusted_mode;
> +	struct drm_display_mode *m = &arcpgu->pipe.crtc.state->adjusted_mode;
>  	u32 val;
>  
>  	arc_pgu_write(arcpgu, ARCPGU_REG_FMT,
> @@ -110,7 +109,7 @@ static void arc_pgu_crtc_mode_set_nofb(struct drm_crtc *crtc)
>  	arc_pgu_write(arcpgu, ARCPGU_REG_STRIDE, 0);
>  	arc_pgu_write(arcpgu, ARCPGU_REG_START_SET, 1);
>  
> -	arc_pgu_set_pxl_fmt(crtc);
> +	arc_pgu_set_pxl_fmt(&arcpgu->pipe.crtc);
>  
>  	clk_set_rate(arcpgu->clk, m->crtc_clock * 1000);
>  }
> @@ -120,6 +119,8 @@ static void arc_pgu_crtc_atomic_enable(struct drm_crtc *crtc,
>  {
>  	struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
>  
> +	arc_pgu_mode_set(arcpgu);
> +
>  	clk_prepare_enable(arcpgu->clk);
>  	arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
>  		      arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) |
> @@ -139,7 +140,6 @@ static void arc_pgu_crtc_atomic_disable(struct drm_crtc *crtc,
>  
>  static const struct drm_crtc_helper_funcs arc_pgu_crtc_helper_funcs = {
>  	.mode_valid	= arc_pgu_crtc_mode_valid,
> -	.mode_set_nofb	= arc_pgu_crtc_mode_set_nofb,
>  	.atomic_enable	= arc_pgu_crtc_atomic_enable,
>  	.atomic_disable	= arc_pgu_crtc_atomic_disable,
>  };
> -- 
> 2.25.1
> 
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