drm/sun4i: tcon: Add variant callback for TCON output muxing
Different SoCs have different muxing options and values for the TCON
outputs. Instead of stuffing every possibility in sun4i_tcon_set_mux(),
add a callback pointer to sun4i_tcon_quirks that each TCON variant
can use to provide muxing support.
The current muxing options in sun4i_tcon_set_mux() for sun5i-a13 are
moved to a new sun5i-specific callback function.
Since the new callback replaces what the .has_unknown_mux field in
tcon quirks did in the past, the field is removed.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010032008.682-2-wens@csie.org
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.h b/drivers/gpu/drm/sun4i/sun4i_tcon.h
index 5a219d1..d9e1357 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.h
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.h
@@ -145,10 +145,14 @@
#define SUN4I_TCON_MAX_CHANNELS 2
+struct sun4i_tcon;
+
struct sun4i_tcon_quirks {
- bool has_unknown_mux; /* sun5i has undocumented mux */
bool has_channel_1; /* a33 does not have channel 1 */
bool needs_de_be_mux; /* sun6i needs mux to select backend */
+
+ /* callback to handle tcon muxing options */
+ int (*set_mux)(struct sun4i_tcon *, struct drm_encoder *);
};
struct sun4i_tcon {