Merge drm/drm-next into drm-intel-gt-next

Close the divergence which has caused patches not to apply and
have a solid baseline for the PXP patches that Rodrigo will send
a topic branch PR for.

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

34 files changed, 514 insertions, 233 deletions

diff --git a/include/drm/amd_asic_type.h b/include/drm/amd_asic_type.h
index 0bf0ad869eb9..0f66a0d9f06d 100644
--- a/include/drm/amd_asic_type.h
+++ b/include/drm/amd_asic_type.h
@@ -53,14 +53,15 @@ enum amd_asic_type {
 	CHIP_RENOIR,	/* 24 */
 	CHIP_ALDEBARAN, /* 25 */
 	CHIP_NAVI10,	/* 26 */
-	CHIP_NAVI14,	/* 27 */
-	CHIP_NAVI12,	/* 28 */
-	CHIP_SIENNA_CICHLID,	/* 29 */
-	CHIP_NAVY_FLOUNDER,	/* 30 */
-	CHIP_VANGOGH,	/* 31 */
-	CHIP_DIMGREY_CAVEFISH,	/* 32 */
-	CHIP_BEIGE_GOBY,	/* 33 */
-	CHIP_YELLOW_CARP,	/* 34 */
+	CHIP_CYAN_SKILLFISH,	/* 27 */
+	CHIP_NAVI14,	/* 28 */
+	CHIP_NAVI12,	/* 29 */
+	CHIP_SIENNA_CICHLID,	/* 30 */
+	CHIP_NAVY_FLOUNDER,	/* 31 */
+	CHIP_VANGOGH,	/* 32 */
+	CHIP_DIMGREY_CAVEFISH,	/* 33 */
+	CHIP_BEIGE_GOBY,	/* 34 */
+	CHIP_YELLOW_CARP,	/* 35 */
 	CHIP_LAST,
 };
 
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 6a5716655619..2a1f85f9a8a3 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -126,6 +126,8 @@ struct dw_hdmi_phy_ops {
 struct dw_hdmi_plat_data {
 	struct regmap *regm;
 
+	unsigned int output_port;
+
 	unsigned long input_bus_encoding;
 	bool use_drm_infoframe;
 	bool ycbcr_420_allowed;
diff --git a/include/drm/drm_aperture.h b/include/drm/drm_aperture.h
index 6c148078780c..7096703c3949 100644
--- a/include/drm/drm_aperture.h
+++ b/include/drm/drm_aperture.h
@@ -6,20 +6,22 @@
 #include <linux/types.h>
 
 struct drm_device;
+struct drm_driver;
 struct pci_dev;
 
 int devm_aperture_acquire_from_firmware(struct drm_device *dev, resource_size_t base,
 					resource_size_t size);
 
 int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_size_t size,
-						 bool primary, const char *name);
+						 bool primary, const struct drm_driver *req_driver);
 
-int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const char *name);
+int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						     const struct drm_driver *req_driver);
 
 /**
  * drm_aperture_remove_framebuffers - remove all existing framebuffers
  * @primary: also kick vga16fb if present
- * @name: requesting driver name
+ * @req_driver: requesting DRM driver
  *
  * This function removes all graphics device drivers. Use this function on systems
  * that can have their framebuffer located anywhere in memory.
@@ -27,9 +29,11 @@ int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const
  * Returns:
  * 0 on success, or a negative errno code otherwise
  */
-static inline int drm_aperture_remove_framebuffers(bool primary, const char *name)
+static inline int
+drm_aperture_remove_framebuffers(bool primary, const struct drm_driver *req_driver)
 {
-	return drm_aperture_remove_conflicting_framebuffers(0, (resource_size_t)-1, primary, name);
+	return drm_aperture_remove_conflicting_framebuffers(0, (resource_size_t)-1, primary,
+							    req_driver);
 }
 
 #endif
diff --git a/include/drm/drm_auth.h b/include/drm/drm_auth.h
index 6bf8b2b78991..ba248ca8866f 100644
--- a/include/drm/drm_auth.h
+++ b/include/drm/drm_auth.h
@@ -58,12 +58,6 @@ struct drm_lock_data {
  * @refcount: Refcount for this master object.
  * @dev: Link back to the DRM device
  * @driver_priv: Pointer to driver-private information.
- * @lessor: Lease holder
- * @lessee_id: id for lessees. Owners always have id 0
- * @lessee_list: other lessees of the same master
- * @lessees: drm_masters leasing from this one
- * @leases: Objects leased to this drm_master.
- * @lessee_idr: All lessees under this owner (only used where lessor == NULL)
  *
  * Note that master structures are only relevant for the legacy/primary device
  * nodes, hence there can only be one per device, not one per drm_minor.
@@ -88,17 +82,68 @@ struct drm_master {
 	struct idr magic_map;
 	void *driver_priv;
 
-	/* Tree of display resource leases, each of which is a drm_master struct
-	 * All of these get activated simultaneously, so drm_device master points
-	 * at the top of the tree (for which lessor is NULL). Protected by
-	 * &drm_device.mode_config.idr_mutex.
+	/**
+	 * @lessor:
+	 *
+	 * Lease grantor, only set if this &struct drm_master represents a
+	 * lessee holding a lease of objects from @lessor. Full owners of the
+	 * device have this set to NULL.
+	 *
+	 * The lessor does not change once it's set in drm_lease_create(), and
+	 * each lessee holds a reference to its lessor that it releases upon
+	 * being destroyed in drm_lease_destroy().
+	 *
+	 * See also the :ref:`section on display resource leasing
+	 * <drm_leasing>`.
 	 */
-
 	struct drm_master *lessor;
+
+	/**
+	 * @lessee_id:
+	 *
+	 * ID for lessees. Owners (i.e. @lessor is NULL) always have ID 0.
+	 * Protected by &drm_device.mode_config's &drm_mode_config.idr_mutex.
+	 */
 	int	lessee_id;
+
+	/**
+	 * @lessee_list:
+	 *
+	 * List entry of lessees of @lessor, where they are linked to @lessees.
+	 * Not used for owners. Protected by &drm_device.mode_config's
+	 * &drm_mode_config.idr_mutex.
+	 */
 	struct list_head lessee_list;
+
+	/**
+	 * @lessees:
+	 *
+	 * List of drm_masters leasing from this one. Protected by
+	 * &drm_device.mode_config's &drm_mode_config.idr_mutex.
+	 *
+	 * This list is empty if no leases have been granted, or if all lessees
+	 * have been destroyed. Since lessors are referenced by all their
+	 * lessees, this master cannot be destroyed unless the list is empty.
+	 */
 	struct list_head lessees;
+
+	/**
+	 * @leases:
+	 *
+	 * Objects leased to this drm_master. Protected by
+	 * &drm_device.mode_config's &drm_mode_config.idr_mutex.
+	 *
+	 * Objects are leased all together in drm_lease_create(), and are
+	 * removed all together when the lease is revoked.
+	 */
 	struct idr leases;
+
+	/**
+	 * @lessee_idr:
+	 *
+	 * All lessees under this owner (only used where @lessor is NULL).
+	 * Protected by &drm_device.mode_config's &drm_mode_config.idr_mutex.
+	 */
 	struct idr lessee_idr;
 	/* private: */
 #if IS_ENABLED(CONFIG_DRM_LEGACY)
@@ -107,6 +152,7 @@ struct drm_master {
 };
 
 struct drm_master *drm_master_get(struct drm_master *master);
+struct drm_master *drm_file_get_master(struct drm_file *file_priv);
 void drm_master_put(struct drm_master **master);
 bool drm_is_current_master(struct drm_file *fpriv);
 
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 2195daa289d2..46bdfa48c413 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -171,6 +171,11 @@ struct drm_bridge_funcs {
 	 * signals) feeding it is still running when this callback is called.
 	 *
 	 * The @disable callback is optional.
+	 *
+	 * NOTE:
+	 *
+	 * This is deprecated, do not use!
+	 * New drivers shall use &drm_bridge_funcs.atomic_disable.
 	 */
 	void (*disable)(struct drm_bridge *bridge);
 
@@ -190,6 +195,11 @@ struct drm_bridge_funcs {
 	 * called.
 	 *
 	 * The @post_disable callback is optional.
+	 *
+	 * NOTE:
+	 *
+	 * This is deprecated, do not use!
+	 * New drivers shall use &drm_bridge_funcs.atomic_post_disable.
 	 */
 	void (*post_disable)(struct drm_bridge *bridge);
 
@@ -215,9 +225,9 @@ struct drm_bridge_funcs {
 	 *
 	 * NOTE:
 	 *
-	 * If a need arises to store and access modes adjusted for other
-	 * locations than the connection between the CRTC and the first bridge,
-	 * the DRM framework will have to be extended with DRM bridge states.
+	 * This is deprecated, do not use!
+	 * New drivers shall set their mode in the
+	 * &drm_bridge_funcs.atomic_enable operation.
 	 */
 	void (*mode_set)(struct drm_bridge *bridge,
 			 const struct drm_display_mode *mode,
@@ -239,6 +249,11 @@ struct drm_bridge_funcs {
 	 * there is one) when this callback is called.
 	 *
 	 * The @pre_enable callback is optional.
+	 *
+	 * NOTE:
+	 *
+	 * This is deprecated, do not use!
+	 * New drivers shall use &drm_bridge_funcs.atomic_pre_enable.
 	 */
 	void (*pre_enable)(struct drm_bridge *bridge);
 
@@ -259,6 +274,11 @@ struct drm_bridge_funcs {
 	 * chain if there is one.
 	 *
 	 * The @enable callback is optional.
+	 *
+	 * NOTE:
+	 *
+	 * This is deprecated, do not use!
+	 * New drivers shall use &drm_bridge_funcs.atomic_enable.
 	 */
 	void (*enable)(struct drm_bridge *bridge);
 
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 714d1a01c065..1647960c9e50 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -848,6 +848,11 @@ struct drm_connector_funcs {
 	 * locks to avoid races with concurrent modeset changes need to use
 	 * &drm_connector_helper_funcs.detect_ctx instead.
 	 *
+	 * Also note that this callback can be called no matter the
+	 * state the connector is in. Drivers that need the underlying
+	 * device to be powered to perform the detection will first need
+	 * to make sure it's been properly enabled.
+	 *
 	 * RETURNS:
 	 *
 	 * drm_connector_status indicating the connector's status.
@@ -1735,6 +1740,11 @@ void drm_mode_put_tile_group(struct drm_device *dev,
  * drm_connector_list_iter_begin(), drm_connector_list_iter_end() and
  * drm_connector_list_iter_next() respectively the convenience macro
  * drm_for_each_connector_iter().
+ *
+ * Note that the return value of drm_connector_list_iter_next() is only valid
+ * up to the next drm_connector_list_iter_next() or
+ * drm_connector_list_iter_end() call. If you want to use the connector later,
+ * then you need to grab your own reference first using drm_connector_get().
  */
 struct drm_connector_list_iter {
 /* private: */
diff --git a/include/drm/drm_damage_helper.h b/include/drm/drm_damage_helper.h
index 40c34a5bf149..effda42cce31 100644
--- a/include/drm/drm_damage_helper.h
+++ b/include/drm/drm_damage_helper.h
@@ -64,7 +64,6 @@ struct drm_atomic_helper_damage_iter {
 	bool full_update;
 };
 
-void drm_plane_enable_fb_damage_clips(struct drm_plane *plane);
 void drm_atomic_helper_check_plane_damage(struct drm_atomic_state *state,
 					  struct drm_plane_state *plane_state);
 int drm_atomic_helper_dirtyfb(struct drm_framebuffer *fb,
@@ -82,21 +81,4 @@ bool drm_atomic_helper_damage_merged(const struct drm_plane_state *old_state,
 				     struct drm_plane_state *state,
 				     struct drm_rect *rect);
 
-/**
- * drm_helper_get_plane_damage_clips - Returns damage clips in &drm_rect.
- * @state: Plane state.
- *
- * Returns plane damage rectangles in internal &drm_rect. Currently &drm_rect
- * can be obtained by simply typecasting &drm_mode_rect. This is because both
- * are signed 32 and during drm_atomic_check_only() it is verified that damage
- * clips are inside fb.
- *
- * Return: Clips in plane fb_damage_clips blob property.
- */
-static inline struct drm_rect *
-drm_helper_get_plane_damage_clips(const struct drm_plane_state *state)
-{
-	return (struct drm_rect *)drm_plane_get_damage_clips(state);
-}
-
 #endif
diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
index f588f967bb14..604b1d1b2d72 100644
--- a/include/drm/drm_device.h
+++ b/include/drm/drm_device.h
@@ -192,20 +192,6 @@ struct drm_device {
 	struct list_head clientlist;
 
 	/**
-	 * @irq_enabled:
-	 *
-	 * Indicates that interrupt handling is enabled, specifically vblank
-	 * handling. Drivers which don't use drm_irq_install() need to set this
-	 * to true manually.
-	 */
-	bool irq_enabled;
-
-	/**
-	 * @irq: Used by the drm_irq_install() and drm_irq_unistall() helpers.
-	 */
-	int irq;
-
-	/**
 	 * @vblank_disable_immediate:
 	 *
 	 * If true, vblank interrupt will be disabled immediately when the
@@ -372,6 +358,10 @@ struct drm_device {
 
 	/* Scatter gather memory */
 	struct drm_sg_mem *sg;
+
+	/* IRQs */
+	bool irq_enabled;
+	int irq;
 #endif
 };
 
diff --git a/include/drm/drm_dp_aux_bus.h b/include/drm/drm_dp_aux_bus.h
new file mode 100644
index 000000000000..4f19b20b1dd6
--- /dev/null
+++ b/include/drm/drm_dp_aux_bus.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2021 Google Inc.
+ *
+ * The DP AUX bus is used for devices that are connected over a DisplayPort
+ * AUX bus. The devices on the far side of the bus are referred to as
+ * endpoints in this code.
+ */
+
+#ifndef _DP_AUX_BUS_H_
+#define _DP_AUX_BUS_H_
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+
+/**
+ * struct dp_aux_ep_device - Main dev structure for DP AUX endpoints
+ *
+ * This is used to instantiate devices that are connected via a DP AUX
+ * bus. Usually the device is a panel, but conceivable other devices could
+ * be hooked up there.
+ */
+struct dp_aux_ep_device {
+	/** @dev: The normal dev pointer */
+	struct device dev;
+	/** @aux: Pointer to the aux bus */
+	struct drm_dp_aux *aux;
+};
+
+struct dp_aux_ep_driver {
+	int (*probe)(struct dp_aux_ep_device *aux_ep);
+	void (*remove)(struct dp_aux_ep_device *aux_ep);
+	void (*shutdown)(struct dp_aux_ep_device *aux_ep);
+	struct device_driver driver;
+};
+
+static inline struct dp_aux_ep_device *to_dp_aux_ep_dev(struct device *dev)
+{
+	return container_of(dev, struct dp_aux_ep_device, dev);
+}
+
+static inline struct dp_aux_ep_driver *to_dp_aux_ep_drv(struct device_driver *drv)
+{
+	return container_of(drv, struct dp_aux_ep_driver, driver);
+}
+
+int of_dp_aux_populate_ep_devices(struct drm_dp_aux *aux);
+void of_dp_aux_depopulate_ep_devices(struct drm_dp_aux *aux);
+int devm_of_dp_aux_populate_ep_devices(struct drm_dp_aux *aux);
+
+#define dp_aux_dp_driver_register(aux_ep_drv) \
+	__dp_aux_dp_driver_register(aux_ep_drv, THIS_MODULE)
+int __dp_aux_dp_driver_register(struct dp_aux_ep_driver *aux_ep_drv,
+				struct module *owner);
+void dp_aux_dp_driver_unregister(struct dp_aux_ep_driver *aux_ep_drv);
+
+#endif /* _DP_AUX_BUS_H_ */
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 3f2715eb965f..1d5b3dbb6e56 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -30,6 +30,7 @@
 
 struct drm_device;
 struct drm_dp_aux;
+struct drm_panel;
 
 /*
  * Unless otherwise noted, all values are from the DP 1.1a spec.  Note that
@@ -1818,6 +1819,24 @@ drm_dp_sink_can_do_video_without_timing_msa(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
 		DP_MSA_TIMING_PAR_IGNORED;
 }
 
+/**
+ * drm_edp_backlight_supported() - Check an eDP DPCD for VESA backlight support
+ * @edp_dpcd: The DPCD to check
+ *
+ * Note that currently this function will return %false for panels which support various DPCD
+ * backlight features but which require the brightness be set through PWM, and don't support setting
+ * the brightness level via the DPCD. This is a TODO.
+ *
+ * Returns: %True if @edp_dpcd indicates that VESA backlight controls are supported, %false
+ * otherwise
+ */
+static inline bool
+drm_edp_backlight_supported(const u8 edp_dpcd[EDP_DISPLAY_CTL_CAP_SIZE])
+{
+	return (edp_dpcd[1] & DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP) &&
+		(edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP);
+}
+
 /*
  * DisplayPort AUX channel
  */
@@ -1858,35 +1877,6 @@ struct drm_dp_aux_cec {
 
 /**
  * struct drm_dp_aux - DisplayPort AUX channel
- * @name: user-visible name of this AUX channel and the I2C-over-AUX adapter
- * @ddc: I2C adapter that can be used for I2C-over-AUX communication
- * @dev: pointer to struct device that is the parent for this AUX channel
- * @drm_dev: pointer to the &drm_device that owns this AUX channel. Beware, this
- * may be %NULL before drm_dp_aux_register() has been called.
- * @crtc: backpointer to the crtc that is currently using this AUX channel
- * @hw_mutex: internal mutex used for locking transfers
- * @crc_work: worker that captures CRCs for each frame
- * @crc_count: counter of captured frame CRCs
- * @transfer: transfers a message representing a single AUX transaction
- *
- * The @dev field should be set to a pointer to the device that implements the
- * AUX channel. As well, the @drm_dev field should be set to the &drm_device
- * that will be using this AUX channel as early as possible. For many graphics
- * drivers this should happen before drm_dp_aux_init(), however it's perfectly
- * fine to set this field later so long as it's assigned before calling
- * drm_dp_aux_register().
- *
- * The @name field may be used to specify the name of the I2C adapter. If set to
- * %NULL, dev_name() of @dev will be used.
- *
- * Drivers provide a hardware-specific implementation of how transactions are
- * executed via the @transfer() function. A pointer to a &drm_dp_aux_msg
- * structure describing the transaction is passed into this function. Upon
- * success, the implementation should return the number of payload bytes that
- * were transferred, or a negative error-code on failure. Helpers propagate
- * errors from the @transfer() function, with the exception of the %-EBUSY
- * error, which causes a transaction to be retried. On a short, helpers will
- * return %-EPROTO to make it simpler to check for failure.
  *
  * An AUX channel can also be used to transport I2C messages to a sink. A
  * typical application of that is to access an EDID that's present in the sink
@@ -1897,22 +1887,96 @@ struct drm_dp_aux_cec {
  * transfers by default; if a partial response is received, the adapter will
  * drop down to the size given by the partial response for this transaction
  * only.
- *
- * Note that the aux helper code assumes that the @transfer() function only
- * modifies the reply field of the &drm_dp_aux_msg structure. The retry logic
- * and i2c helpers assume this is the case.
  */
 struct drm_dp_aux {
+	/**
+	 * @name: user-visible name of this AUX channel and the
+	 * I2C-over-AUX adapter.
+	 *
+	 * It's also used to specify the name of the I2C adapter. If set
+	 * to %NULL, dev_name() of @dev will be used.
+	 */
 	const char *name;
+
+	/**
+	 * @ddc: I2C adapter that can be used for I2C-over-AUX
+	 * communication
+	 */
 	struct i2c_adapter ddc;
+
+	/**
+	 * @dev: pointer to struct device that is the parent for this
+	 * AUX channel.
+	 */
 	struct device *dev;
+
+	/**
+	 * @drm_dev: pointer to the &drm_device that owns this AUX channel.
+	 * Beware, this may be %NULL before drm_dp_aux_register() has been
+	 * called.
+	 *
+	 * It should be set to the &drm_device that will be using this AUX
+	 * channel as early as possible. For many graphics drivers this should
+	 * happen before drm_dp_aux_init(), however it's perfectly fine to set
+	 * this field later so long as it's assigned before calling
+	 * drm_dp_aux_register().
+	 */
 	struct drm_device *drm_dev;
+
+	/**
+	 * @crtc: backpointer to the crtc that is currently using this
+	 * AUX channel
+	 */
 	struct drm_crtc *crtc;
+
+	/**
+	 * @hw_mutex: internal mutex used for locking transfers.
+	 *
+	 * Note that if the underlying hardware is shared among multiple
+	 * channels, the driver needs to do additional locking to
+	 * prevent concurrent access.
+	 */
 	struct mutex hw_mutex;
+
+	/**
+	 * @crc_work: worker that captures CRCs for each frame
+	 */
 	struct work_struct crc_work;
+
+	/**
+	 * @crc_count: counter of captured frame CRCs
+	 */
 	u8 crc_count;
+
+	/**
+	 * @transfer: transfers a message representing a single AUX
+	 * transaction.
+	 *
+	 * This is a hardware-specific implementation of how
+	 * transactions are executed that the drivers must provide.
+	 *
+	 * A pointer to a &drm_dp_aux_msg structure describing the
+	 * transaction is passed into this function. Upon success, the
+	 * implementation should return the number of payload bytes that
+	 * were transferred, or a negative error-code on failure.
+	 *
+	 * Helpers will propagate these errors, with the exception of
+	 * the %-EBUSY error, which causes a transaction to be retried.
+	 * On a short, helpers will return %-EPROTO to make it simpler
+	 * to check for failure.
+	 *
+	 * The @transfer() function must only modify the reply field of
+	 * the &drm_dp_aux_msg structure. The retry logic and i2c
+	 * helpers assume this is the case.
+	 *
+	 * Also note that this callback can be called no matter the
+	 * state @dev is in. Drivers that need that device to be powered
+	 * to perform this operation will first need to make sure it's
+	 * been properly enabled.
+	 */
 	ssize_t (*transfer)(struct drm_dp_aux *aux,
 			    struct drm_dp_aux_msg *msg);
+
 	/**
 	 * @i2c_nack_count: Counts I2C NACKs, used for DP validation.
 	 */
@@ -2124,6 +2188,51 @@ drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk)
 	return desc->quirks & BIT(quirk);
 }
 
+/**
+ * struct drm_edp_backlight_info - Probed eDP backlight info struct
+ * @pwmgen_bit_count: The pwmgen bit count
+ * @pwm_freq_pre_divider: The PWM frequency pre-divider value being used for this backlight, if any
+ * @max: The maximum backlight level that may be set
+ * @lsb_reg_used: Do we also write values to the DP_EDP_BACKLIGHT_BRIGHTNESS_LSB register?
+ * @aux_enable: Does the panel support the AUX enable cap?
+ *
+ * This structure contains various data about an eDP backlight, which can be populated by using
+ * drm_edp_backlight_init().
+ */
+struct drm_edp_backlight_info {
+	u8 pwmgen_bit_count;
+	u8 pwm_freq_pre_divider;
+	u16 max;
+
+	bool lsb_reg_used : 1;
+	bool aux_enable : 1;
+};
+
+int
+drm_edp_backlight_init(struct drm_dp_aux *aux, struct drm_edp_backlight_info *bl,
+		       u16 driver_pwm_freq_hz, const u8 edp_dpcd[EDP_DISPLAY_CTL_CAP_SIZE],
+		       u16 *current_level, u8 *current_mode);
+int drm_edp_backlight_set_level(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl,
+				u16 level);
+int drm_edp_backlight_enable(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl,
+			     u16 level);
+int drm_edp_backlight_disable(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl);
+
+#if IS_ENABLED(CONFIG_DRM_KMS_HELPER) && (IS_BUILTIN(CONFIG_BACKLIGHT_CLASS_DEVICE) || \
+	(IS_MODULE(CONFIG_DRM_KMS_HELPER) && IS_MODULE(CONFIG_BACKLIGHT_CLASS_DEVICE)))
+
+int drm_panel_dp_aux_backlight(struct drm_panel *panel, struct drm_dp_aux *aux);
+
+#else
+
+static inline int drm_panel_dp_aux_backlight(struct drm_panel *panel,
+					     struct drm_dp_aux *aux)
+{
+	return 0;
+}
+
+#endif
+
 #ifdef CONFIG_DRM_DP_CEC
 void drm_dp_cec_irq(struct drm_dp_aux *aux);
 void drm_dp_cec_register_connector(struct drm_dp_aux *aux,
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index b439ae1921b8..0cd95953cdf5 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -137,10 +137,6 @@ enum drm_driver_feature {
 	 * @DRIVER_HAVE_IRQ:
 	 *
 	 * Legacy irq support. Only for legacy drivers. Do not use.
-	 *
-	 * New drivers can either use the drm_irq_install() and
-	 * drm_irq_uninstall() helper functions, or roll their own irq support
-	 * code by calling request_irq() directly.
 	 */
 	DRIVER_HAVE_IRQ			= BIT(30),
 	/**
@@ -272,42 +268,6 @@ struct drm_driver {
 	void (*release) (struct drm_device *);
 
 	/**
-	 * @irq_handler:
-	 *
-	 * Interrupt handler called when using drm_irq_install(). Not used by
-	 * drivers which implement their own interrupt handling.
-	 */
-	irqreturn_t(*irq_handler) (int irq, void *arg);
-
-	/**
-	 * @irq_preinstall:
-	 *
-	 * Optional callback used by drm_irq_install() which is called before
-	 * the interrupt handler is registered. This should be used to clear out
-	 * any pending interrupts (from e.g. firmware based drives) and reset
-	 * the interrupt handling registers.
-	 */
-	void (*irq_preinstall) (struct drm_device *dev);
-
-	/**
-	 * @irq_postinstall:
-	 *
-	 * Optional callback used by drm_irq_install() which is called after
-	 * the interrupt handler is registered. This should be used to enable
-	 * interrupt generation in the hardware.
-	 */
-	int (*irq_postinstall) (struct drm_device *dev);
-
-	/**
-	 * @irq_uninstall:
-	 *
-	 * Optional callback used by drm_irq_uninstall() which is called before
-	 * the interrupt handler is unregistered. This should be used to disable
-	 * interrupt generation in the hardware.
-	 */
-	void (*irq_uninstall) (struct drm_device *dev);
-
-	/**
 	 * @master_set:
 	 *
 	 * Called whenever the minor master is set. Only used by vmwgfx.
@@ -504,6 +464,10 @@ struct drm_driver {
 	int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv);
 	int (*dma_quiescent) (struct drm_device *);
 	int (*context_dtor) (struct drm_device *dev, int context);
+	irqreturn_t (*irq_handler)(int irq, void *arg);
+	void (*irq_preinstall)(struct drm_device *dev);
+	int (*irq_postinstall)(struct drm_device *dev);
+	void (*irq_uninstall)(struct drm_device *dev);
 	u32 (*get_vblank_counter)(struct drm_device *dev, unsigned int pipe);
 	int (*enable_vblank)(struct drm_device *dev, unsigned int pipe);
 	void (*disable_vblank)(struct drm_device *dev, unsigned int pipe);
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 759328a5eeb2..deccfd39e6db 100644
--- a/include/drm/drm_edid.h
+++ b/