linux-kernel - [PATCH v2 3/4] drm/sun4i: Use CRTC size instead of PRIMARY plane size as mixer frame.

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Date:   Sun, 29 Dec 2019 18:28:27 +0200
From:   roman.stratiienko@...ballogic.com
To:     mripard@...nel.org, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        jernej.skrabec@...l.net
Cc:     Roman Stratiienko <roman.stratiienko@...ballogic.com>
Subject: [PATCH v2 3/4] drm/sun4i: Use CRTC size instead of PRIMARY plane size as mixer frame.

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: 90212fffa4fc ("drm/sun4i: Use values calculated by atomic check")
Signed-off-by: Roman Stratiienko <roman.stratiienko@...ballogic.com>
---
v2:
- Split commit in 2 parts
- Add Fixes line to the commit message
---
 drivers/gpu/drm/sun4i/sun8i_mixer.c    | 35 ++++++++++++++++++++++++++
 drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 30 ----------------------
 2 files changed, 35 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index d306ad5dc093..5d90a95ff855 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -257,6 +257,40 @@ 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 dst_w = mode->crtc_hdisplay;
+	u32 dst_h = mode->crtc_vdisplay;
+	u32 outsize = SUN8I_MIXER_SIZE(dst_w, dst_h);
+	bool interlaced = false;
+	u32 val;
+	struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
+	u32 bld_base = sun8i_blender_base(mixer);
+
+	DRM_DEBUG_DRIVER("Mode change, 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);
+
+	interlaced = 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");
+}
+
 static void sun8i_mixer_commit(struct sunxi_engine *engine)
 {
 	struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
@@ -356,6 +390,7 @@ 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 ee7c13d8710f..23c2f4b68c89 100644
--- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
@@ -72,36 +72,6 @@ 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);
-- 
2.17.1