linux-kernel - Re: [PATCH v3 2/2] drm/sun4i: Use CRTC size instead of PRIMARY plane size as mixer frame.

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Message-ID: <2989265.aV6nBDHxoP@jernej-laptop>
Date:   Thu, 02 Jan 2020 08:42:51 +0100
From:   Jernej Škrabec <jernej.skrabec@...l.net>
To:     mripard@...nel.org, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        roman.stratiienko@...ballogic.com
Cc:     Roman Stratiienko <roman.stratiienko@...ballogic.com>
Subject: Re: [PATCH v3 2/2] drm/sun4i: Use CRTC size instead of PRIMARY plane size as mixer frame.

Hi!

Dne sreda, 01. januar 2020 ob 21:47:50 CET je 
roman.stratiienko@...ballogic.com napisal(a):
> From: Roman Stratiienko <roman.stratiienko@...ballogic.com>
> 
> According to DRM documentation the only difference between PRIMARY
> and OVERLAY plane is that each CRTC must have PRIMARY plane and
> OVERLAY are optional.
> 
> Allow PRIMARY plane to have dimension different from full-screen.
> 
> Fixes: 5bb5f5dafa1a ("drm/sun4i: Reorganize UI layer code in DE2")
> Signed-off-by: Roman Stratiienko <roman.stratiienko@...ballogic.com>

This looks great now.

Reviewed-by: Jernej Skrabec <jernej.skrabec@...l.net>

What happened to other patches in the series? It would be nice to have a cover 
letter for such cases, where you can explain reasons for dropped patches.

Best regards,
Jernej

> ---
> v2:
> - Split commit in 2 parts
> - Add Fixes line to the commit message
> 
> v3:
> - Address review comments of v2 + removed 3 local varibles
> - Change 'Fixes' line
> 
> Since I've put more changes from my side, please review/sign again.
> ---
>  drivers/gpu/drm/sun4i/sun8i_mixer.c    | 28 ++++++++++++++++++++++++
>  drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 30 --------------------------
>  2 files changed, 28 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c
> b/drivers/gpu/drm/sun4i/sun8i_mixer.c index 8b803eb903b8..658cf442c121
> 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
> @@ -257,6 +257,33 @@ const struct de2_fmt_info *sun8i_mixer_format_info(u32
> format) return NULL;
>  }
> 
> +static void sun8i_mode_set(struct sunxi_engine *engine,
> +			   struct drm_display_mode *mode)
> +{
> +	u32 size = SUN8I_MIXER_SIZE(mode->crtc_hdisplay, mode-
>crtc_vdisplay);
> +	struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
> +	u32 bld_base = sun8i_blender_base(mixer);
> +	u32 val;
> +
> +	DRM_DEBUG_DRIVER("Mode change, updating global size W: %u H: %u\n",
> +			 mode->crtc_hdisplay, mode->crtc_vdisplay);
> +	regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_SIZE, size);
> +	regmap_write(mixer->engine.regs,
> +		     SUN8I_MIXER_BLEND_OUTSIZE(bld_base), size);
> +
> +	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
> +		val = SUN8I_MIXER_BLEND_OUTCTL_INTERLACED;
> +	else
> +		val = 0;
> +
> +	regmap_update_bits(mixer->engine.regs,
> +			   SUN8I_MIXER_BLEND_OUTCTL(bld_base),
> +			   SUN8I_MIXER_BLEND_OUTCTL_INTERLACED,
> +			   val);
> +	DRM_DEBUG_DRIVER("Switching display mixer interlaced mode %s\n",
> +			 val ? "on" : "off");
> +}
> +
>  static void sun8i_mixer_commit(struct sunxi_engine *engine)
>  {
>  	DRM_DEBUG_DRIVER("Committing changes\n");
> @@ -310,6 +337,7 @@ static struct drm_plane **sun8i_layers_init(struct
> drm_device *drm, static const struct sunxi_engine_ops sun8i_engine_ops = {
>  	.commit		= sun8i_mixer_commit,
>  	.layers_init	= sun8i_layers_init,
> +	.mode_set	= sun8i_mode_set,
>  };
> 
>  static struct regmap_config sun8i_mixer_regmap_config = {
> diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c index 4343ea9f8cf8..f01ac55191f1
> 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> @@ -120,36 +120,6 @@ static int sun8i_ui_layer_update_coord(struct
> sun8i_mixer *mixer, int channel, insize = SUN8I_MIXER_SIZE(src_w, src_h);
>  	outsize = SUN8I_MIXER_SIZE(dst_w, dst_h);
> 
> -	if (plane->type == DRM_PLANE_TYPE_PRIMARY) {
> -		bool interlaced = false;
> -		u32 val;
> -
> -		DRM_DEBUG_DRIVER("Primary layer, updating global size 
W: %u H: %u\n",
> -				 dst_w, dst_h);
> -		regmap_write(mixer->engine.regs,
> -			     SUN8I_MIXER_GLOBAL_SIZE,
> -			     outsize);
> -		regmap_write(mixer->engine.regs,
> -			     SUN8I_MIXER_BLEND_OUTSIZE(bld_base), 
outsize);
> -
> -		if (state->crtc)
> -			interlaced = state->crtc->state-
>adjusted_mode.flags
> -				& DRM_MODE_FLAG_INTERLACE;
> -
> -		if (interlaced)
> -			val = SUN8I_MIXER_BLEND_OUTCTL_INTERLACED;
> -		else
> -			val = 0;
> -
> -		regmap_update_bits(mixer->engine.regs,
> -				   
SUN8I_MIXER_BLEND_OUTCTL(bld_base),
> -				   
SUN8I_MIXER_BLEND_OUTCTL_INTERLACED,
> -				   val);
> -
> -		DRM_DEBUG_DRIVER("Switching display mixer interlaced 
mode %s\n",
> -				 interlaced ? "on" : "off");
> -	}
> -
>  	/* Set height and width */
>  	DRM_DEBUG_DRIVER("Layer source offset X: %d Y: %d\n",
>  			 state->src.x1 >> 16, state->src.y1 >> 16);