Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index bd85074..7616f65 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -196,8 +196,8 @@
* the DRM framework will have to be extended with DRM bridge states.
*/
void (*mode_set)(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode);
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode);
/**
* @pre_enable:
*
@@ -237,6 +237,103 @@
* The enable callback is optional.
*/
void (*enable)(struct drm_bridge *bridge);
+
+ /**
+ * @atomic_pre_enable:
+ *
+ * This callback should enable the bridge. It is called right before
+ * the preceding element in the display pipe is enabled. If the
+ * preceding element is a bridge this means it's called before that
+ * bridge's @atomic_pre_enable or @pre_enable function. If the preceding
+ * element is a &drm_encoder it's called right before the encoder's
+ * &drm_encoder_helper_funcs.atomic_enable hook.
+ *
+ * The display pipe (i.e. clocks and timing signals) feeding this bridge
+ * will not yet be running when this callback is called. The bridge must
+ * not enable the display link feeding the next bridge in the chain (if
+ * there is one) when this callback is called.
+ *
+ * Note that this function will only be invoked in the context of an
+ * atomic commit. It will not be invoked from &drm_bridge_pre_enable. It
+ * would be prudent to also provide an implementation of @pre_enable if
+ * you are expecting driver calls into &drm_bridge_pre_enable.
+ *
+ * The @atomic_pre_enable callback is optional.
+ */
+ void (*atomic_pre_enable)(struct drm_bridge *bridge,
+ struct drm_atomic_state *state);
+
+ /**
+ * @atomic_enable:
+ *
+ * This callback should enable the bridge. It is called right after
+ * the preceding element in the display pipe is enabled. If the
+ * preceding element is a bridge this means it's called after that
+ * bridge's @atomic_enable or @enable function. If the preceding element
+ * is a &drm_encoder it's called right after the encoder's
+ * &drm_encoder_helper_funcs.atomic_enable hook.
+ *
+ * The bridge can assume that the display pipe (i.e. clocks and timing
+ * signals) feeding it is running when this callback is called. This
+ * callback must enable the display link feeding the next bridge in the
+ * chain if there is one.
+ *
+ * Note that this function will only be invoked in the context of an
+ * atomic commit. It will not be invoked from &drm_bridge_enable. It
+ * would be prudent to also provide an implementation of @enable if
+ * you are expecting driver calls into &drm_bridge_enable.
+ *
+ * The enable callback is optional.
+ */
+ void (*atomic_enable)(struct drm_bridge *bridge,
+ struct drm_atomic_state *state);
+ /**
+ * @atomic_disable:
+ *
+ * This callback should disable the bridge. It is called right before
+ * the preceding element in the display pipe is disabled. If the
+ * preceding element is a bridge this means it's called before that
+ * bridge's @atomic_disable or @disable vfunc. If the preceding element
+ * is a &drm_encoder it's called right before the
+ * &drm_encoder_helper_funcs.atomic_disable hook.
+ *
+ * The bridge can assume that the display pipe (i.e. clocks and timing
+ * signals) feeding it is still running when this callback is called.
+ *
+ * Note that this function will only be invoked in the context of an
+ * atomic commit. It will not be invoked from &drm_bridge_disable. It
+ * would be prudent to also provide an implementation of @disable if
+ * you are expecting driver calls into &drm_bridge_disable.
+ *
+ * The disable callback is optional.
+ */
+ void (*atomic_disable)(struct drm_bridge *bridge,
+ struct drm_atomic_state *state);
+
+ /**
+ * @atomic_post_disable:
+ *
+ * This callback should disable the bridge. It is called right after the
+ * preceding element in the display pipe is disabled. If the preceding
+ * element is a bridge this means it's called after that bridge's
+ * @atomic_post_disable or @post_disable function. If the preceding
+ * element is a &drm_encoder it's called right after the encoder's
+ * &drm_encoder_helper_funcs.atomic_disable hook.
+ *
+ * The bridge must assume that the display pipe (i.e. clocks and timing
+ * signals) feeding it is no longer running when this callback is
+ * called.
+ *
+ * Note that this function will only be invoked in the context of an
+ * atomic commit. It will not be invoked from &drm_bridge_post_disable.
+ * It would be prudent to also provide an implementation of
+ * @post_disable if you are expecting driver calls into
+ * &drm_bridge_post_disable.
+ *
+ * The post_disable callback is optional.
+ */
+ void (*atomic_post_disable)(struct drm_bridge *bridge,
+ struct drm_atomic_state *state);
};
/**
@@ -244,14 +341,13 @@
*/
struct drm_bridge_timings {
/**
- * @sampling_edge:
+ * @input_bus_flags:
*
- * Tells whether the bridge samples the digital input signal
- * from the display engine on the positive or negative edge of the
- * clock, this should reuse the DRM_BUS_FLAG_PIXDATA_[POS|NEG]EDGE
- * bitwise flags from the DRM connector (bit 2 and 3 valid).
+ * Tells what additional settings for the pixel data on the bus
+ * this bridge requires (like pixel signal polarity). See also
+ * &drm_display_info->bus_flags.
*/
- u32 sampling_edge;
+ u32 input_bus_flags;
/**
* @setup_time_ps:
*
@@ -266,6 +362,14 @@
* input signal after the clock edge.
*/
u32 hold_time_ps;
+ /**
+ * @dual_link:
+ *
+ * True if the bus operates in dual-link mode. The exact meaning is
+ * dependent on the bus type. For LVDS buses, this indicates that even-
+ * and odd-numbered pixels are received on separate links.
+ */
+ bool dual_link;
};
/**
@@ -310,11 +414,20 @@
void drm_bridge_disable(struct drm_bridge *bridge);
void drm_bridge_post_disable(struct drm_bridge *bridge);
void drm_bridge_mode_set(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode);
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode);
void drm_bridge_pre_enable(struct drm_bridge *bridge);
void drm_bridge_enable(struct drm_bridge *bridge);
+void drm_atomic_bridge_disable(struct drm_bridge *bridge,
+ struct drm_atomic_state *state);
+void drm_atomic_bridge_post_disable(struct drm_bridge *bridge,
+ struct drm_atomic_state *state);
+void drm_atomic_bridge_pre_enable(struct drm_bridge *bridge,
+ struct drm_atomic_state *state);
+void drm_atomic_bridge_enable(struct drm_bridge *bridge,
+ struct drm_atomic_state *state);
+
#ifdef CONFIG_DRM_PANEL_BRIDGE
struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel,
u32 connector_type);