Merge tag 'drm-misc-next-2023-01-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.3:

UAPI Changes:

 * connector: Support analog-TV mode property
 * media: Add MEDIA_BUS_FMT_RGB565_1X24_CPADHI,
   MEDIA_BUS_FMT_RGB666_1X18 and MEDIA_BUS_FMT_RGB666_1X24_CPADHI

Cross-subsystem Changes:

 * dma-buf: Documentation fixes
 * i2c: Introduce i2c_client_get_device_id() helper

Core Changes:

 * Improve support for analog TV output
 * bridge: Remove unused drm_bridge_chain functions
 * debugfs: Add per-device helpers and convert various DRM drivers
 * dp-mst: Various fixes
 * fbdev emulation: Always pick 32 bpp as default
 * KUnit: Add tests for managed helpers; Various cleanups
 * panel-orientation: Add quirks for Lenovo Yoga Tab 3 X90F and DynaBook K50
 * TTM: Open-code ttm_bo_wait() and remove the helper

Driver Changes:

 * Fix preferred depth and bpp values throughout DRM drivers
 * Remove #CONFIG_PM guards throughout DRM drivers
 * ast: Various fixes
 * bridge: Implement i2c's probe_new in various drivers; Fixes; ite-it6505:
   Locking fixes, Cache EDID data; ite-it66121: Support IT6610 chip,
   Cleanups; lontium-tl9611: Fix HDMI on DragonBoard 845c; parade-ps8640:
   Use atomic bridge functions
 * gud: Convert to DRM shadow-plane helpers; Perform flushing synchronously
   during atomic update
 * ili9486: Support 16-bit pixel data
 * imx: Split off IPUv3 driver; Various fixes
 * mipi-dbi: Convert to DRM shadow-plane helpers plus rsp driver changes;i
   Support separate I/O-voltage supply
 * mxsfb: Depend on ARCH_MXS or ARCH_MXC
 * omapdrm: Various fixes
 * panel: Use ktime_get_boottime() to measure power-down delay in various
   drivers; Fix auto-suspend delay in various drivers; orisetech-ota5601a:
   Add support
 * sprd: Cleanups
 * sun4i: Convert to new TV-mode property
 * tidss: Various fixes
 * v3d: Various fixes
 * vc4: Convert to new TV-mode property; Support Kunit tests; Cleanups;
   dpi: Support RGB565 and RGB666 formats; dsi: Convert DSI driver to
   bridge
 * virtio: Improve tracing
 * vkms: Support small cursors in IGT tests; Various fixes

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Y7QIwlfElAYWxRcR@linux-uq9g

1 files changed, 8 insertions, 28 deletions

diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 6b65b0dfb4fb..42f86327b40a 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -297,12 +297,6 @@ struct drm_bridge_funcs {
 	 * 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_chain_pre_enable. It would be prudent to also provide an
-	 * implementation of @pre_enable if you are expecting driver calls into
-	 * &drm_bridge_chain_pre_enable.
-	 *
 	 * The @atomic_pre_enable callback is optional.
 	 */
 	void (*atomic_pre_enable)(struct drm_bridge *bridge,
@@ -323,11 +317,6 @@ struct drm_bridge_funcs {
 	 * 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_chain_enable.
-	 * It would be prudent to also provide an implementation of @enable if
-	 * you are expecting driver calls into &drm_bridge_chain_enable.
-	 *
 	 * The @atomic_enable callback is optional.
 	 */
 	void (*atomic_enable)(struct drm_bridge *bridge,
@@ -345,12 +334,6 @@ struct drm_bridge_funcs {
 	 * 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_chain_disable. It would be prudent to also provide an
-	 * implementation of @disable if you are expecting driver calls into
-	 * &drm_bridge_chain_disable.
-	 *
 	 * The @atomic_disable callback is optional.
 	 */
 	void (*atomic_disable)(struct drm_bridge *bridge,
@@ -370,13 +353,6 @@ struct drm_bridge_funcs {
 	 * 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_chain_post_disable.
-	 * It would be prudent to also provide an implementation of
-	 * @post_disable if you are expecting driver calls into
-	 * &drm_bridge_chain_post_disable.
-	 *
 	 * The @atomic_post_disable callback is optional.
 	 */
 	void (*atomic_post_disable)(struct drm_bridge *bridge,
@@ -769,6 +745,14 @@ struct drm_bridge {
 	 */
 	bool interlace_allowed;
 	/**
+	 * @pre_enable_prev_first: The bridge requires that the prev
+	 * bridge @pre_enable function is called before its @pre_enable,
+	 * and conversely for post_disable. This is most frequently a
+	 * requirement for DSI devices which need the host to be initialised
+	 * before the peripheral.
+	 */
+	bool pre_enable_prev_first;
+	/**
 	 * @ddc: Associated I2C adapter for DDC access, if any.
 	 */
 	struct i2c_adapter *ddc;
@@ -876,13 +860,9 @@ enum drm_mode_status
 drm_bridge_chain_mode_valid(struct drm_bridge *bridge,
 			    const struct drm_display_info *info,
 			    const struct drm_display_mode *mode);
-void drm_bridge_chain_disable(struct drm_bridge *bridge);
-void drm_bridge_chain_post_disable(struct drm_bridge *bridge);
 void drm_bridge_chain_mode_set(struct drm_bridge *bridge,
 			       const struct drm_display_mode *mode,
 			       const struct drm_display_mode *adjusted_mode);
-void drm_bridge_chain_pre_enable(struct drm_bridge *bridge);
-void drm_bridge_chain_enable(struct drm_bridge *bridge);
 
 int drm_atomic_bridge_chain_check(struct drm_bridge *bridge,
 				  struct drm_crtc_state *crtc_state,