diff mbox series

[v12,3/8] drm: sun4i: de2/de3: add generic blender register reference function

Message ID 20250528092431.28825-4-ryan@testtoast.com (mailing list archive)
State New
Headers
Series drm: sun4i: add Display Engine 3.3 (DE33) support |

Commit Message

Ryan Walklin May 28, 2025, 9:22 a.m. UTC 
From: Jernej Skrabec <jernej.skrabec@gmail.com>

The DE2 and DE3 engines have a blender register range within the
mixer engine register map, whereas the DE33 separates this out into
a separate display group.

Prepare for this by adding a function to look the blender reference up,
with a subsequent patch to add a conditional based on the DE type.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Ryan Walklin <ryan@testtoast.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
---
 drivers/gpu/drm/sun4i/sun8i_mixer.h | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index d34e7fb3143a..b75008d05fc9 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -222,6 +222,12 @@  sun8i_blender_base(struct sun8i_mixer *mixer)
 	return mixer->cfg->de_type == SUN8I_MIXER_DE3 ? DE3_BLD_BASE : DE2_BLD_BASE;
 }
 
+static inline struct regmap *
+sun8i_blender_regmap(struct sun8i_mixer *mixer)
+{
+	return mixer->engine.regs;
+}
+
 static inline u32
 sun8i_channel_base(struct sun8i_mixer *mixer, int channel)
 {