drm/sun4i: Fix DE2 mixer size

DE2 mixer is always 0x6000 bytes in size on all known SoCs.

While at it, introduce a macro for that.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181104182705.18047-11-jernej.skrabec@siol.net

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 6129c35..6769ec0 100644 (file)
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -460,7 +460,7 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master,
        base = sun8i_blender_base(mixer);
 
        /* Reset the registers */
-       for (i = 0x0; i < 0x20000; i += 4)
+       for (i = 0; i < DE2_MIXER_UNIT_SIZE; i += 4)
                regmap_write(mixer->engine.regs, i, 0);
 
        /* Enable the mixer */

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index 025550a..09e0f44 100644 (file)
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -29,6 +29,8 @@
 
 #define SUN8I_MIXER_GLOBAL_DBUFF_ENABLE                BIT(0)
 
+#define DE2_MIXER_UNIT_SIZE                    0x6000
+
 #define DE2_BLD_BASE                           0x1000
 #define DE2_CH_BASE                            0x2000
 #define DE2_CH_SIZE                            0x1000