Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted

Pull tracing fixes from Steven Rostedt:

 - Fix error output of boot instance creation failure

   Currently if a boot instance creation fails, instead of printing out
   the name of the instance that failed, it prints "(null)". That is
   because it prints "cur_str" that had already been processed by
   strsep(). Print the saved name instead.

   While at it, print the error code of the failure.

 - Fix use-after-free for same named historgrams

   Histograms can be named so that they can be used in multiple events.
   But if the named histogram has a variable attached, the second event
   that uses the named histogram which duplicates it and needs to free
   the original after duplication leaves the old variable in place and
   still visible. If another histogram uses than variable, it will use
   the stale one which will try to reference the freed duplicate
   histogram and crash the kernel.

   Free the duplicate variables along with the duplicated histogram
   data.

 - Check return value of kthread_run() in event self test

   The events self tests uses a kthread for testing but does not check
   if it succeeded in creating a kthread. If the kthread creation were
   to fail, the code will still try to call kthread_stop() on the error
   returned.

 - Fix race between reading trace_pipe and updating subbuffer size

   If a user is reading the trace_pipe file at the same time they update
   the ring buffer sub-buffer size, can cause the trace_pipe read to
   read stale data. Add trace_access_lock() around updating the ring
   buffer sub-buffer size.

 - Fix eventfs_inode on failure path in creation of the events directory

   In the creation of the "events" directory, if after allocating the
   eventfs_inode a failure is detected, it calls cleanup_ei() which
   calls free_ei(). The free_ei() will test if eventfs_inode being freed
   has no children. It is a bug if it does. But on the failure case of
   the creation of the "events" directory, the children lists have not
   yet been initialized and the free will trigger a warning because
   list_empty() on an uninitialized list returns false.

   Move the initialization into init_ei() where it makes more sense and
   makes sure that a created eventfs_inode has its lists initialized
   upon creation.

 - Check return value of kthread_run() in ftrace direct sample code

   The sample code that shows how to use the ftrace direct calls does
   not test the return of kthread_run() to see if it succeeds. Return a
   failure if the kthread_run() doesn't succeed.

 - Clear user events state on fork in case of alloc failure

   On fork, the child gets a pointer to the parent's user events state.
   It makes a copy of it then updates the child's pointer to it. But if
   the allocation fails, the duplication function leaves the child with
   a pointer to its parent's descriptor. When the child cleans up its
   data, it will free the parent's descriptor while the parent is still
   using it.

   In the duplication function, set the child's user_event_mm to NULL
   before testing if the allocation succeeded, and when it exits it will
   not free the parent's descriptor.

 - Fix retry exhaustion in simple ring buffer reader swap

   simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
   post-decrements it only after a failed link replacement. On the final
   attempt, a successful replacement leaves retry at zero, while a
   failed replacement leaves it at -1.

   But the check for success expects the retry value to be non-zero and
   exits with an error on zero. This is the opposite result. Fix it.

 - Fail nicely when the remote swap_reader_page() returns an error

   Currently, if the swap_reader_page() of a remote buffer fails, it
   triggers a WARN_ON_ONCE() and continues normally. Instead, have it
   exit with an error and a pr_warn() print instead of a full WARNING.

* tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Stop remote reader update when page swap fails
  tracing: Fix retry exhaustion in simple ring buffer reader swap
  tracing/user_events: Clear copied tracing state before fork duplication
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify
  eventfs: Initialize ei->children and ei->list in init_ei()
  tracing: Fix use-after-free in trace_pipe read on sub-buffer order change
  tracing: Fix crash passing ERR_PTR to kthread_stop()
  tracing: Fix use-after-free with same-name named triggers
  tracing: Fix logged instance name on creation failure

14 files changed, 771 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/extcon/extcon-max3355.txt b/Documentation/devicetree/bindings/extcon/extcon-max3355.txt
new file mode 100644
index 000000000..f2288ea9e
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-max3355.txt
@@ -0,0 +1,21 @@
+Maxim Integrated MAX3355 USB OTG chip
+-------------------------------------
+
+MAX3355 integrates a charge pump and comparators to enable a system with an
+integrated USB OTG dual-role transceiver to function as a USB OTG dual-role
+device.
+
+Required properties:
+- compatible: should be "maxim,max3355";
+- maxim,shdn-gpios: should contain a phandle and GPIO specifier for the GPIO pin
+		    connected to the MAX3355's SHDN# pin;
+- id-gpios: should contain a phandle and GPIO specifier for the GPIO pin
+	    connected to the MAX3355's ID_OUT pin.
+
+Example:
+
+	usb-otg {
+		compatible = "maxim,max3355";
+		maxim,shdn-gpios = <&gpio2 4 GPIO_ACTIVE_LOW>;
+		id-gpios = <&gpio5 31 GPIO_ACTIVE_HIGH>;
+	};
diff --git a/Documentation/devicetree/bindings/extcon/extcon-palmas.txt b/Documentation/devicetree/bindings/extcon/extcon-palmas.txt
new file mode 100644
index 000000000..f61d5af44
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-palmas.txt
@@ -0,0 +1,22 @@
+EXTCON FOR PALMAS/TWL CHIPS
+
+PALMAS USB COMPARATOR
+Required Properties:
+ - compatible: should contain one of:
+   * "ti,palmas-usb-vid".
+   * "ti,twl6035-usb-vid".
+   * "ti,palmas-usb" (DEPRECATED - use "ti,palmas-usb-vid").
+   * "ti,twl6035-usb" (DEPRECATED - use "ti,twl6035-usb-vid").
+
+Optional Properties:
+ - ti,wakeup : To enable the wakeup comparator in probe
+ - ti,enable-id-detection: Perform ID detection. If id-gpio is specified
+		it performs id-detection using GPIO else using OTG core.
+ - ti,enable-vbus-detection: Perform VBUS detection.
+ - id-gpio: gpio for GPIO ID detection. See gpio binding.
+ - debounce-delay-ms: debounce delay for GPIO ID pin in milliseconds.
+
+palmas-usb {
+       compatible = "ti,twl6035-usb", "ti,palmas-usb";
+       ti,wakeup;
+};
diff --git a/Documentation/devicetree/bindings/extcon/extcon-ptn5150.yaml b/Documentation/devicetree/bindings/extcon/extcon-ptn5150.yaml
new file mode 100644
index 000000000..79f88b5f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-ptn5150.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/extcon-ptn5150.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PTN5150 CC (Configuration Channel) Logic device
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+  PTN5150 is a small thin low power CC logic chip supporting the USB Type-C
+  connector application with CC control logic detection and indication
+  functions.  It is interfaced to the host controller using an I2C interface.
+
+properties:
+  compatible:
+    const: nxp,ptn5150
+
+  int-gpios:
+    maxItems: 1
+    deprecated: true
+    description:
+      GPIO pin (input) connected to the PTN5150's INTB pin.
+      Use "interrupts" instead.
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  vbus-gpios:
+    maxItems: 1
+    description:
+      GPIO pin (output) used to control VBUS. If skipped, no such control
+      takes place.
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+    description:
+      A port node to link the usb controller for the dual role switch.
+
+  connector:
+    $ref: /schemas/connector/usb-connector.yaml#
+
+required:
+  - compatible
+  - interrupts
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ptn5150@1d {
+            compatible = "nxp,ptn5150";
+            reg = <0x1d>;
+            interrupt-parent = <&msmgpio>;
+            interrupts = <78 IRQ_TYPE_LEVEL_HIGH>;
+            vbus-gpios = <&msmgpio 148 GPIO_ACTIVE_HIGH>;
+
+            port {
+                endpoint {
+                    remote-endpoint = <&usb1_drd_sw>;
+                };
+            };
+        };
+    };
diff --git a/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.yaml b/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.yaml
new file mode 100644
index 000000000..e00c8072b
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/extcon-usbc-cros-ec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ChromeOS EC USB Type-C cable and accessories detection
+
+maintainers:
+  - Benson Leung <bleung@chromium.org>
+
+description: |
+  On ChromeOS systems with USB Type C ports, the ChromeOS Embedded Controller is
+  able to detect the state of external accessories such as display adapters
+  or USB devices when said accessories are attached or detached.
+  The node for this device must be under a cros-ec node like google,cros-ec-spi
+  or google,cros-ec-i2c.
+
+properties:
+  compatible:
+    const: google,extcon-usbc-cros-ec
+
+  google,usb-port-id:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: the port id
+    minimum: 0
+    maximum: 255
+
+required:
+  - compatible
+  - google,usb-port-id
+
+additionalProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        cros-ec@0 {
+            compatible = "google,cros-ec-spi";
+            reg = <0>;
+            interrupts = <44 0>;
+
+            usbc_extcon0: extcon0 {
+                compatible = "google,extcon-usbc-cros-ec";
+                google,usb-port-id = <0>;
+            };
+
+            usbc_extcon1: extcon1 {
+                compatible = "google,extcon-usbc-cros-ec";
+                google,usb-port-id = <1>;
+            };
+        };
+    };
diff --git a/Documentation/devicetree/bindings/extcon/extcon-usbc-tusb320.yaml b/Documentation/devicetree/bindings/extcon/extcon-usbc-tusb320.yaml
new file mode 100644
index 000000000..126107dd5
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-usbc-tusb320.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/extcon-usbc-tusb320.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TUSB320 USB Type-C CC Logic controller
+
+maintainers:
+  - Michael Auchter <michael.auchter@ni.com>
+
+properties:
+  compatible:
+    enum:
+      - ti,tusb320
+      - ti,tusb320l
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        tusb320@61 {
+            compatible = "ti,tusb320";
+            reg = <0x61>;
+            interrupt-parent = <&gpio>;
+            interrupts = <27 1>;
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/extcon/fcs,fsa880.yaml b/Documentation/devicetree/bindings/extcon/fcs,fsa880.yaml
new file mode 100644
index 000000000..bff3fd5f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/fcs,fsa880.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/fcs,fsa880.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Fairchild Semiconductor FSA880, FSA9480 and compatibles
+
+maintainers:
+  - Linus Walleij <linusw@kernel.org>
+
+description:
+  The FSA880 and FSA9480 are USB port accessory detectors and switches.
+  The switch is fully controlled using I2C and enables USB data, stereo
+  and mono audio, video, microphone, and UART data to use a common
+  connector port. Compatible switches exist from other manufacturers.
+
+properties:
+  compatible:
+    enum:
+      - fcs,fsa880
+      - fcs,fsa9480
+      - ti,tsu6111
+
+  reg:
+    maxItems: 1
+    description: The I2C address for an FSA880 compatible device is
+      usually 0x25.
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        usb-switch@25 {
+            compatible = "fcs,fsa880";
+            reg = <0x25>;
+            interrupt-parent = <&gpio>;
+            interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/extcon/linux,extcon-usb-gpio.yaml b/Documentation/devicetree/bindings/extcon/linux,extcon-usb-gpio.yaml
new file mode 100644
index 000000000..8f29d3336
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/linux,extcon-usb-gpio.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/linux,extcon-usb-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: USB GPIO Extcon device
+
+maintainers:
+  - Frank Li <Frank.Li@nxp.com>
+
+description:
+  This is a virtual device used to generate USB cable states from the USB ID pin
+  connected to a GPIO pin.
+
+properties:
+  compatible:
+    const: linux,extcon-usb-gpio
+
+  id-gpios:
+    description: gpio for USB ID pin. See gpio binding.
+  vbus-gpios:
+    description: gpio for USB VBUS pin.
+
+required:
+  - compatible
+
+anyOf:
+  - required:
+      - id-gpios
+  - required:
+      - vbus-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    extcon_usb1 {
+        compatible = "linux,extcon-usb-gpio";
+        id-gpios = <&gpio6 1 GPIO_ACTIVE_HIGH>;
+    };
diff --git a/Documentation/devicetree/bindings/extcon/maxim,max14526.yaml b/Documentation/devicetree/bindings/extcon/maxim,max14526.yaml
new file mode 100644
index 000000000..7eb5918df
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/maxim,max14526.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/maxim,max14526.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX14526 MicroUSB Integrated Circuit (MUIC)
+
+maintainers:
+  - Svyatoslav Ryhel <clamor95@gmail.com>
+
+properties:
+  compatible:
+    const: maxim,max14526
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  connector:
+    $ref: /schemas/connector/usb-connector.yaml#
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - connector
+  - port
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        muic@44 {
+            compatible = "maxim,max14526";
+            reg = <0x44>;
+
+            interrupt-parent = <&gpio>;
+            interrupts = <72 IRQ_TYPE_EDGE_FALLING>;
+
+            connector {
+                compatible = "usb-b-connector";
+                label = "micro-USB";
+                type = "micro";
+            };
+
+            port {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                muic_to_charger: endpoint@0 {
+                    reg = <0>;
+                    remote-endpoint = <&charger_input>;
+                };
+
+                muic_to_usb: endpoint@1 {
+                    reg = <1>;
+                    remote-endpoint = <&usb_input>;
+                };
+
+                muic_to_mhl: endpoint@2 {
+                    reg = <2>;
+                    remote-endpoint = <&mhl_input>;
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/extcon/maxim,max77843.yaml b/Documentation/devicetree/bindings/extcon/maxim,max77843.yaml
new file mode 100644
index 000000000..55800fb02
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/maxim,max77843.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/maxim,max77843.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX77843 MicroUSB and Companion Power Management IC Extcon
+
+maintainers:
+  - Chanwoo Choi <cw00.choi@samsung.com>
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+  This is a part of device tree bindings for Maxim MAX77843 MicroUSB
+  Integrated Circuit (MUIC).
+
+  See also Documentation/devicetree/bindings/mfd/maxim,max77843.yaml for
+  additional information and example.
+
+properties:
+  compatible:
+    const: maxim,max77843-muic
+
+  connector:
+    $ref: /schemas/connector/usb-connector.yaml#
+    unevaluatedProperties: false
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    description:
+      Any connector to the data bus of this controller should be modelled using
+      the OF graph bindings specified
+    properties:
+      port:
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - connector
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/extcon/qcom,pm8941-misc.yaml b/Documentation/devicetree/bindings/extcon/qcom,pm8941-misc.yaml
new file mode 100644
index 000000000..6b80518cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/qcom,pm8941-misc.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/qcom,pm8941-misc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. PM8941 USB ID Extcon device
+
+maintainers:
+  - Guru Das Srinagesh <quic_gurus@quicinc.com>
+
+description: |
+  Some Qualcomm PMICs have a "misc" module that can be used to detect when
+  the USB ID pin has been pulled low or high.
+
+properties:
+  compatible:
+    items:
+      - const: qcom,pm8941-misc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 1
+    maxItems: 2
+
+  interrupt-names:
+    minItems: 1
+    anyOf:
+      - items:
+          - const: usb_id
+          - const: usb_vbus
+      - items:
+          - const: usb_id
+      - items:
+          - const: usb_vbus
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    pmic {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            interrupt-controller;
+            #interrupt-cells = <4>;
+
+            usb_id: usb-detect@900 {
+                    compatible = "qcom,pm8941-misc";
+                    reg = <0x900>;
+                    interrupts = <0x0 0x9 0 IRQ_TYPE_EDGE_BOTH>;
+                    interrupt-names = "usb_id";
+            };
+    };
+
+    usb-controller {
+           extcon = <&usb_id>;
+    };
diff --git a/Documentation/devicetree/bindings/extcon/richtek,rt8973a-muic.yaml b/Documentation/devicetree/bindings/extcon/richtek,rt8973a-muic.yaml
new file mode 100644
index 000000000..f9e0d816c
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/richtek,rt8973a-muic.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/richtek,rt8973a-muic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RT8973A MUIC
+
+maintainers:
+  - Chanwoo Choi <cw00.choi@samsung.com>
+
+description:
+  The Richtek RT8973A is Micro USB Switch with OVP and I2C interface. The RT8973A
+  is a USB port accessory detector and switch that is optimized to protect low
+  voltage system from abnormal high input voltage (up to 28V) and supports high
+  speed USB operation. Also, RT8973A support 'auto-configuration' mode.
+  If auto-configuration mode is enabled, RT8973A would control internal h/w patch
+  for USB D-/D+ switching.
+
+properties:
+  compatible:
+    const: richtek,rt8973a-muic
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        usb-switch@14 {
+          compatible = "richtek,rt8973a-muic";
+          reg = <0x14>;
+          interrupt-parent = <&gpio>;
+          interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/extcon/samsung,s2mu005-muic.yaml b/Documentation/devicetree/bindings/extcon/samsung,s2mu005-muic.yaml
new file mode 100644
index 000000000..0a320d5e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/samsung,s2mu005-muic.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/samsung,s2mu005-muic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MUIC Device for Samsung S2M series PMICs
+
+maintainers:
+  - Kaustabh Chakraborty <kauschluss@disroot.org>
+
+description: |
+  The Samsung S2M series PMIC MUIC device is a USB port accessory
+  detector. It reports multiple states depending on the ID-GND
+  resistance measured by an internal ADC.
+
+  This is a part of device tree bindings for S2M and S5M family of Power
+  Management IC (PMIC).
+
+  See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
+  additional information and example.
+
+properties:
+  compatible:
+    enum:
+      - samsung,s2mu005-muic
+
+  connector:
+    $ref: /schemas/connector/usb-connector.yaml#
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+    description: Port connecting to the USB controller or PHY.
+
+required:
+  - compatible
+  - connector
+  - port
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/extcon/siliconmitus,sm5502-muic.yaml b/Documentation/devicetree/bindings/extcon/siliconmitus,sm5502-muic.yaml
new file mode 100644
index 000000000..7ef2d9bef
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/siliconmitus,sm5502-muic.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/siliconmitus,sm5502-muic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SM5502/SM5504 MUIC (Micro-USB Interface Controller) device
+
+maintainers:
+  - Chanwoo Choi <cw00.choi@samsung.com>
+
+description:
+  The Silicon Mitus SM5502 is a MUIC (Micro-USB Interface Controller) device
+  which can detect the state of external accessory when external accessory is
+  attached or detached and button is pressed or released. It is interfaced to
+  the host controller using an I2C interface.
+
+properties:
+  compatible:
+    enum:
+      - siliconmitus,sm5502-muic
+      - siliconmitus,sm5504-muic
+      - siliconmitus,sm5703-muic
+
+  reg:
+    maxItems: 1
+    description: I2C slave address of the device. Usually 0x25 for SM5502
+      and SM5703, 0x14 for SM5504.
+
+  connector:
+    $ref: /schemas/connector/usb-connector.yaml#
+    unevaluatedProperties: false
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        extcon@25 {
+                compatible = "siliconmitus,sm5502-muic";
+                reg = <0x25>;
+                interrupt-parent = <&msmgpio>;
+                interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/extcon/wlf,arizona.yaml b/Documentation/devicetree/bindings/extcon/wlf,arizona.yaml
new file mode 100644
index 000000000..351b202d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/wlf,arizona.yaml
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/extcon/wlf,arizona.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic/Wolfson Microelectronics Arizona class audio SoCs
+
+maintainers:
+  - patches@opensource.cirrus.com
+
+description: |
+  These devices are audio SoCs with extensive digital capabilities and a
+  range of analogue I/O.
+
+  This document lists Extcon specific bindings, see the primary binding
+  document ../mfd/arizona.yaml
+
+properties:
+  wlf,hpdet-channel:
+    description:
+      Headphone detection channel.  ARIZONA_ACCDET_MODE_HPL/1 sets the
+      headphone detect mode to HPDETL, ARIZONA_ACCDET_MODE_HPR/2 sets it
+      to HPDETR.  If this node is not included or if the value is unknown,
+      then headphone detection mode is set to HPDETL.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 1
+    maximum: 2
+
+  wlf,use-jd2:
+    description:
+      Use the additional JD input along with JD1 for dual pin jack detection.
+    type: boolean
+
+  wlf,use-jd2-nopull:
+    description:
+      Internal pull on JD2 is disabled when used for jack detection.
+    type: boolean
+
+  wlf,jd-invert:
+    description:
+      Invert the polarity of the jack detection switch.
+    type: boolean
+
+  wlf,micd-software-compare:
+    description:
+      Use a software comparison to determine mic presence.
+    type: boolean
+
+  wlf,micd-detect-debounce:
+    description:
+      Additional software microphone detection debounce specified in
+      milliseconds.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  wlf,micd-pol-gpio:
+    description:
+      GPIO specifier for the GPIO controlling the headset polarity if one
+      exists.
+    maxItems: 1
+
+  wlf,micd-bias-start-time:
+    description:
+      Time allowed for MICBIAS to startup prior to performing microphone
+      detection, specified as per the ARIZONA_MICD_TIME_XXX defines.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 12
+
+  wlf,micd-rate:
+    description:
+      Delay between successive microphone detection measurements, specified
+      as per the ARIZONA_MICD_TIME_XXX defines.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 12
+
+  wlf,micd-dbtime:
+    description:
+      Microphone detection hardware debounces specified as the number of
+      measurements to take.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [2, 4]
+
+  wlf,micd-timeout-ms:
+    description:
+      Timeout for microphone detection, specified in milliseconds.
+
+  wlf,micd-force-micbias:
+    description:
+      Force MICBIAS continuously on during microphone detection.
+    type: boolean
+
+  wlf,micd-configs:
+    description:
+      Headset polarity configurations (generally used for detection of
+      CTIA / OMTP headsets), the field can be of variable length but
+      should always be a multiple of 3 cells long, each three cell group
+      represents one polarity configuration.
+    $ref: /schemas/types.yaml#/definitions/uint32-matrix
+    items:
+      items:
+        - description:
+            The first cell defines the accessory detection pin, zero
+            will use MICDET1 and 0x2000 will use MICDET2.
+          enum: [ 0, 0x2000 ]
+        - description:
+            The second cell represents the MICBIAS to be used. Zero
+            will use MICVDD, 1-3 will use MICBIASx.
+          minimum: 0
+          maximum: 3
+        - description:
+            The third cell represents the value of the micd-pol-gpio
+            pin.
+          minimum: 0
+          maximum: 1
+
+  wlf,gpsw:
+    description:
+      Settings for the general purpose switch, set as one of the
+      ARIZONA_GPSW_XXX defines.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 3
+
+additionalProperties: true