Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 88 insertions, 0 deletions

diff --git a/include/drm/drm_ras.h b/include/drm/drm_ras.h
new file mode 100644
index 000000000..0beede3dd
--- /dev/null
+++ b/include/drm/drm_ras.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2026 Intel Corporation
+ */
+
+#ifndef __DRM_RAS_H__
+#define __DRM_RAS_H__
+
+#include <linux/types.h>
+
+#include <uapi/drm/drm_ras.h>
+
+/**
+ * struct drm_ras_node - A DRM RAS Node
+ */
+struct drm_ras_node {
+	/** @id: Unique identifier for the node. Dynamically assigned. */
+	u32 id;
+	/**
+	 * @device_name: Human-readable name of the device. Given by the driver.
+	 */
+	const char *device_name;
+	/** @node_name: Human-readable name of the node. Given by the driver. */
+	const char *node_name;
+	/** @type: Type of the node (enum drm_ras_node_type). */
+	enum drm_ras_node_type type;
+
+	/* Error-Counter Related Callback and Variables */
+
+	/** @error_counter_range: Range of valid Error IDs for this node. */
+	struct {
+		/** @first: First valid Error ID. */
+		u32 first;
+		/** @last: Last valid Error ID. Mandatory entry. */
+		u32 last;
+	} error_counter_range;
+
+	/**
+	 * @query_error_counter:
+	 *
+	 * This callback is used by drm-ras to query a specific error counter.
+	 * Used for input check and to iterate all error counters in a node.
+	 *
+	 * Driver should expect query_error_counter() to be called with
+	 * error_id from `error_counter_range.first` to
+	 * `error_counter_range.last`.
+	 *
+	 * The @query_error_counter is a mandatory callback for
+	 * error_counter_node.
+	 *
+	 * Returns: 0 on success,
+	 *          -ENOENT when error_id is not supported as an indication that
+	 *                  drm_ras should silently skip this entry. Used for
+	 *                  supporting non-contiguous error ranges.
+	 *                  Driver is responsible for maintaining the list of
+	 *                  supported error IDs in the range of first to last.
+	 *          Other negative values on errors that should terminate the
+	 *          netlink query.
+	 */
+	int (*query_error_counter)(struct drm_ras_node *node, u32 error_id,
+				   const char **name, u32 *val);
+
+	/**
+	 * @clear_error_counter:
+	 *
+	 * This callback is used by drm_ras to clear a specific error counter.
+	 * Driver should implement this callback to support clearing error counters
+	 * of a node.
+	 *
+	 * Returns: 0 on success, negative error code on failure.
+	 */
+	int (*clear_error_counter)(struct drm_ras_node *node, u32 error_id);
+
+	/** @priv: Driver private data */
+	void *priv;
+};
+
+struct drm_device;
+
+#if IS_ENABLED(CONFIG_DRM_RAS)
+int drm_ras_node_register(struct drm_ras_node *node);
+void drm_ras_node_unregister(struct drm_ras_node *node);
+#else
+static inline int drm_ras_node_register(struct drm_ras_node *node) { return 0; }
+static inline void drm_ras_node_unregister(struct drm_ras_node *node) { }
+#endif
+
+#endif