Merge tag 'devicetree-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT Bindings:

   - Convert samsung,exynos5-dp, atmel,lcdc, aspeed,ast2400-wdt bindings
     to schemas

   - Add bindings for Allwinner H616 NMI controller, Renesas r8a779g0
     irqc, Renesas R-Car V4M TMU and CMT timers, Freescale S32G3
     linflexuart, and Mediatek MT7988 XHCI

   - Add 'reg' constraints on DSI and SPI display panels

   - More dropping of unnecessary quotes in schemas

   - Use full paths rather than relative paths in schema $refs

   - Drop redundant storing of phandle for reserved memory

  DT Core:

   - Use scope based cleanups for kfree() and of_node_put()

   - Track interrupt-map and power-supplies for fw_devlink

   - Add buffer overflow check in of_modalias()

   - Add and use __of_prop_free() helper for freeing struct property"

* tag 'devicetree-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (25 commits)
  of: property: Add fw_devlink support for interrupt-map property
  dt-bindings: display: panel: constrain 'reg' in DSI panels
  dt-bindings: display: panel: constrain 'reg' in SPI panels
  dt-bindings: display: samsung,ams495qa01: add missing SPI properties ref
  dt-bindings: Use full path to other schemas
  dt-bindings: PCI: qcom,pcie-sm8350: Drop redundant 'oneOf' sub-schema
  of: module: add buffer overflow check in of_modalias()
  dt-bindings: PCI: microchip: increase number of items in ranges property
  dt-bindings: Drop unnecessary quotes on keys
  dt-bindings: interrupt-controller: mediatek,mt6577-sysirq: Drop unnecessary quotes
  of: property: Use scope based cleanup on port_node
  of: reserved_mem: Remove the use of phandle from the reserved_mem APIs
  of: property: fw_devlink: Add support for "power-supplies" binding
  dt-bindings: watchdog: aspeed,ast2400-wdt: Convert to DT schema
  dt-bindings: irq: sun7i-nmi: Add binding for the H616 NMI controller
  dt-bindings: interrupt-controller: renesas,irqc: Add r8a779g0 support
  dt-bindings: timer: renesas,tmu: Add R-Car V4M support
  dt-bindings: timer: renesas,cmt: Add R-Car V4M support
  of: Use scope based of_node_put() cleanups
  of: Use scope based kfree() cleanups
  ...

Documentation/devicetree/bindings/display/atmel,lcdc-display.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/atmel,lcdc-display.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip's LCDC Display
+
+maintainers:
+  - Nicolas Ferre <nicolas.ferre@microchip.com>
+  - Dharma Balasubiramani <dharma.b@microchip.com>
+
+description:
+  The LCD Controller (LCDC) consists of logic for transferring LCD image data
+  from an external display buffer to a TFT LCD panel. The LCDC has one display
+  input buffer per layer that fetches pixels through the single bus host
+  interface and a look-up table to allow palletized display configurations. The
+  LCDC is programmable on a per layer basis, and supports different LCD
+  resolutions, window sizes, image formats and pixel depths.
+
+# We need a select here since this schema is applicable only for nodes with the
+# following properties
+
+select:
+  anyOf:
+    - required: [ 'atmel,dmacon' ]
+    - required: [ 'atmel,lcdcon2' ]
+    - required: [ 'atmel,guard-time' ]
+
+properties:
+  atmel,dmacon:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: dma controller configuration
+
+  atmel,lcdcon2:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: lcd controller configuration
+
+  atmel,guard-time:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: lcd guard time (Delay in frame periods)
+    maximum: 127
+
+  bits-per-pixel:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: lcd panel bit-depth.
+    enum: [1, 2, 4, 8, 16, 24, 32]
+
+  atmel,lcdcon-backlight:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: enable backlight
+
+  atmel,lcdcon-backlight-inverted:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: invert backlight PWM polarity
+
+  atmel,lcd-wiring-mode:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: lcd wiring mode "RGB" or "BRG"
+    enum:
+      - RGB
+      - BRG
+
+  atmel,power-control-gpio:
+    description: gpio to power on or off the LCD (as many as needed)
+    maxItems: 1
+
+  display-timings:
+    $ref: panel/display-timings.yaml#
+
+required:
+  - atmel,dmacon
+  - atmel,lcdcon2
+  - atmel,guard-time
+  - bits-per-pixel
+
+additionalProperties: false
+
+examples:
+  - |
+    display: panel {
+      bits-per-pixel = <32>;
+      atmel,lcdcon-backlight;
+      atmel,dmacon = <0x1>;
+      atmel,lcdcon2 = <0x80008002>;
+      atmel,guard-time = <9>;
+      atmel,lcd-wiring-mode = "RGB";
+
+      display-timings {
+        native-mode = <&timing0>;
+        timing0: timing0 {
+          clock-frequency = <9000000>;
+          hactive = <480>;
+          vactive = <272>;
+          hback-porch = <1>;
+          hfront-porch = <1>;
+          vback-porch = <40>;
+          vfront-porch = <1>;
+          hsync-len = <45>;
+          vsync-len = <1>;
+        };
+      };
+    };

Documentation/devicetree/bindings/display/atmel,lcdc.txt

-Atmel LCDC Framebuffer
------------------------------------------------------
-
-Required properties:
-- compatible :
-	"atmel,at91sam9261-lcdc" , 
-	"atmel,at91sam9263-lcdc" ,
-	"atmel,at91sam9g10-lcdc" ,
-	"atmel,at91sam9g45-lcdc" ,
-	"atmel,at91sam9g45es-lcdc" ,
-	"atmel,at91sam9rl-lcdc" ,
-- reg : Should contain 1 register ranges(address and length).
-	Can contain an additional register range(address and length)
-	for fixed framebuffer memory. Useful for dedicated memories.
-- interrupts : framebuffer controller interrupt
-- display: a phandle pointing to the display node
-
-Required nodes:
-- display: a display node is required to initialize the lcd panel
-	This should be in the board dts.
-- default-mode: a videomode within the display with timing parameters
-	as specified below.
-
-Optional properties:
-- lcd-supply: Regulator for LCD supply voltage.
-
-Example:
-
-	fb0: fb@00500000 {
-		compatible = "atmel,at91sam9g45-lcdc";
-		reg = <0x00500000 0x1000>;
-		interrupts = <23 3 0>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_fb>;
-		display = <&display0>;
-		#address-cells = <1>;
-		#size-cells = <1>;
-
-	};
-
-Example for fixed framebuffer memory:
-
-	fb0: fb@00500000 {
-		compatible = "atmel,at91sam9263-lcdc";
-		reg = <0x00700000 0x1000 0x70000000 0x200000>;
-		[...]
-	};
-
-Atmel LCDC Display
------------------------------------------------------
-Required properties (as per of_videomode_helper):
-
- - atmel,dmacon: dma controller configuration
- - atmel,lcdcon2: lcd controller configuration
- - atmel,guard-time: lcd guard time (Delay in frame periods)
- - bits-per-pixel: lcd panel bit-depth.
-
-Optional properties (as per of_videomode_helper):
- - atmel,lcdcon-backlight: enable backlight
- - atmel,lcdcon-backlight-inverted: invert backlight PWM polarity
- - atmel,lcd-wiring-mode: lcd wiring mode "RGB" or "BRG"
- - atmel,power-control-gpio: gpio to power on or off the LCD (as many as needed)
-
-Example:
-	display0: display {
-		bits-per-pixel = <32>;
-		atmel,lcdcon-backlight;
-		atmel,dmacon = <0x1>;
-		atmel,lcdcon2 = <0x80008002>;
-		atmel,guard-time = <9>;
-		atmel,lcd-wiring-mode = <1>;
-
-		display-timings {
-			native-mode = <&timing0>;
-			timing0: timing0 {
-				clock-frequency = <9000000>;
-				hactive = <480>;
-				vactive = <272>;
-				hback-porch = <1>;
-				hfront-porch = <1>;
-				vback-porch = <40>;
-				vfront-porch = <1>;
-				hsync-len = <45>;
-				vsync-len = <1>;
-			};
-		};
-	};

Documentation/devicetree/bindings/display/atmel,lcdc.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/atmel,lcdc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip's LCDC Framebuffer
+
+maintainers:
+  - Nicolas Ferre <nicolas.ferre@microchip.com>
+  - Dharma Balasubiramani <dharma.b@microchip.com>
+
+description:
+  The LCDC works with a framebuffer, which is a section of memory that contains
+  a complete frame of data representing pixel values for the display. The LCDC
+  reads the pixel data from the framebuffer and sends it to the LCD panel to
+  render the image.
+
+properties:
+  compatible:
+    enum:
+      - atmel,at91sam9261-lcdc
+      - atmel,at91sam9263-lcdc
+      - atmel,at91sam9g10-lcdc
+      - atmel,at91sam9g45-lcdc
+      - atmel,at91sam9g45es-lcdc
+      - atmel,at91sam9rl-lcdc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: hclk
+      - const: lcdc_clk
+
+  display:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: A phandle pointing to the display node.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - display
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/at91.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    fb@500000 {
+      compatible = "atmel,at91sam9g45-lcdc";
+      reg = <0x00500000 0x1000>;
+      interrupts = <23 IRQ_TYPE_LEVEL_HIGH 0>;
+      pinctrl-names = "default";
+      pinctrl-0 = <&pinctrl_fb>;
+      clocks = <&pmc PMC_TYPE_PERIPHERAL 23>, <&pmc PMC_TYPE_PERIPHERAL 23>;
+      clock-names = "hclk", "lcdc_clk";
+      display = <&display>;
+    };

Documentation/devicetree/bindings/display/exynos/exynos_dp.txt

-The Exynos display port interface should be configured based on
-the type of panel connected to it.
-
-We use two nodes:
-	-dp-controller node
-	-dptx-phy node(defined inside dp-controller node)
-
-For the DP-PHY initialization, we use the dptx-phy node.
-Required properties for dptx-phy: deprecated, use phys and phy-names
-	-reg: deprecated
-		Base address of DP PHY register.
-	-samsung,enable-mask: deprecated
-		The bit-mask used to enable/disable DP PHY.
-
-For the Panel initialization, we read data from dp-controller node.
-Required properties for dp-controller:
-	-compatible:
-		should be "samsung,exynos5-dp".
-	-reg:
-		physical base address of the controller and length
-		of memory mapped region.
-	-interrupts:
-		interrupt combiner values.
-	-clocks:
-		from common clock binding: handle to dp clock.
-	-clock-names:
-		from common clock binding: Shall be "dp".
-	-phys:
-		from general PHY binding: the phandle for the PHY device.
-	-phy-names:
-		from general PHY binding: Should be "dp".
-
-Optional properties for dp-controller:
-	-interlaced:
-		interlace scan mode.
-			Progressive if defined, Interlaced if not defined
-	-vsync-active-high:
-		VSYNC polarity configuration.
-			High if defined, Low if not defined
-	-hsync-active-high:
-		HSYNC polarity configuration.
-			High if defined, Low if not defined
-	-samsung,hpd-gpio:
-		Hotplug detect GPIO.
-			Indicates which GPIO should be used for hotplug
-			detection
-	-video interfaces: Device node can contain video interface port
-			nodes according to [1].
-	- display-timings: timings for the connected panel as described by
-		Documentation/devicetree/bindings/display/panel/display-timing.txt
-
-For the below properties, please refer to Analogix DP binding document:
- * Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml
-	-phys (required)
-	-phy-names (required)
-	-hpd-gpios (optional)
-	 force-hpd (optional)
-
-Deprecated properties for DisplayPort:
--interlaced:            deprecated prop that can parsed from drm_display_mode.
--vsync-active-high:     deprecated prop that can parsed from drm_display_mode.
--hsync-active-high:     deprecated prop that can parsed from drm_display_mode.
--samsung,ycbcr-coeff:   deprecated prop that can parsed from drm_display_mode.
--samsung,dynamic-range: deprecated prop that can parsed from drm_display_mode.
--samsung,color-space:   deprecated prop that can parsed from drm_display_info.
--samsung,color-depth:   deprecated prop that can parsed from drm_display_info.
--samsung,link-rate:     deprecated prop that can reading from monitor by dpcd method.
--samsung,lane-count:    deprecated prop that can reading from monitor by dpcd method.
--samsung,hpd-gpio:      deprecated name for hpd-gpios.
-
--------------------------------------------------------------------------------
-
-Example:
-
-SOC specific portion:
-	dp-controller {
-		compatible = "samsung,exynos5-dp";
-		reg = <0x145b0000 0x10000>;
-		interrupts = <10 3>;
-		interrupt-parent = <&combiner>;
-		clocks = <&clock 342>;
-		clock-names = "dp";
-
-		phys = <&dp_phy>;
-		phy-names = "dp";
-	};
-
-Board Specific portion:
-	dp-controller {
-		display-timings {
-			native-mode = <&lcd_timing>;
-			lcd_timing: 1366x768 {
-				clock-frequency = <70589280>;
-				hactive = <1366>;
-				vactive = <768>;
-				hfront-porch = <40>;
-				hback-porch = <40>;
-				hsync-len = <32>;
-				vback-porch = <10>;
-				vfront-porch = <12>;
-				vsync-len = <6>;
-			};
-		};
-
-		ports {
-			port@0 {
-				dp_out: endpoint {
-					remote-endpoint = <&bridge_in>;
-				};
-			};
-		};
-	};

Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml

@@ -17,10 +17,12 @@ properties:
   compatible:
     const: abt,y030xx067a
 
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   power-supply: true
-  reg: true
   reset-gpios: true
 
 required:

Documentation/devicetree/bindings/display/panel/asus,z00t-tm5p5-nt35596.yaml

@@ -21,7 +21,10 @@ allOf:
 properties:
   compatible:
     const: asus,z00t-tm5p5-n35596
-  reg: true
+
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   vdd-supply:
     description: core voltage supply

Documentation/devicetree/bindings/display/panel/boe,bf060y8m-aj0.yaml

@@ -26,6 +26,9 @@ properties:
   compatible:
     const: boe,bf060y8m-aj0
 
+  reg:
+    maxItems: 1
+
   elvdd-supply:
     description: EL Driving positive (VDD) supply (4.40-4.80V)
   elvss-supply:
@@ -38,7 +41,6 @@ properties:
     description: I/O voltage supply (1.62-1.98V)
 
   port: true
-  reg: true
   reset-gpios: true
 
 required:

Documentation/devicetree/bindings/display/panel/boe,himax8279d.yaml

@@ -18,9 +18,11 @@ properties:
       - const: boe,himax8279d8p
       - const: boe,himax8279d10p
 
+  reg:
+    maxItems: 1
+
   backlight: true
   enable-gpios: true
-  reg: true
 
   pp33-gpios:
     maxItems: 1

Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml

@@ -18,7 +18,9 @@ properties:
         # BOE TH101MB31IG002-28A 10.1" WXGA TFT LCD panel
       - boe,th101mb31ig002-28a
 
-  reg: true
+  reg:
+    maxItems: 1
+
   backlight: true
   enable-gpios: true
   power-supply: true

Documentation/devicetree/bindings/display/panel/boe,tv101wum-nl6.yaml

@@ -38,7 +38,7 @@ properties:
       - starry,ili9882t
 
   reg:
-    description: the virtual channel number of a DSI peripheral
+    maxItems: 1
 
   enable-gpios:
     description: a GPIO spec for the enable pin

Documentation/devicetree/bindings/display/panel/elida,kd35t133.yaml

@@ -15,7 +15,10 @@ allOf:
 properties:
   compatible:
     const: elida,kd35t133
-  reg: true
+
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   reset-gpios: true

Documentation/devicetree/bindings/display/panel/fascontek,fs035vg158.yaml

@@ -17,6 +17,9 @@ properties:
   compatible:
     const: fascontek,fs035vg158
 
+  reg:
+    maxItems: 1
+
   spi-3wire: true
 
 required:

Documentation/devicetree/bindings/display/panel/feixin,k101-im2ba02.yaml

@@ -15,7 +15,10 @@ allOf:
 properties:
   compatible:
     const: feixin,k101-im2ba02
-  reg: true
+
+  reg:
+    maxItems: 1
+
   backlight: true
   reset-gpios: true
   avdd-supply:

Documentation/devicetree/bindings/display/panel/himax,hx83112a.yaml

@@ -21,6 +21,9 @@ properties:
     contains:
       const: djn,9a-3r063-1102b
 
+  reg:
+    maxItems: 1
+
   vdd1-supply:
     description: Digital voltage rail
 
@@ -30,7 +33,6 @@ properties:
   vsp-supply:
     description: Negative source voltage rail
 
-  reg: true
   port: true
 
 required:

Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml

@@ -26,7 +26,8 @@ properties:
           - powkiddy,x55-panel
       - const: himax,hx8394
 
-  reg: true
+  reg:
+    maxItems: 1
 
   reset-gpios: true
 

Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml

@@ -24,6 +24,9 @@ properties:
           - newhaven,1.8-128160EF
       - const: ilitek,ili9163
 
+  reg:
+    maxItems: 1
+
   spi-max-frequency:
     maximum: 32000000
 
@@ -32,7 +35,6 @@ properties:
     description: Display data/command selection (D/CX)
 
   backlight: true
-  reg: true
   reset-gpios: true
   rotation: true
 

Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml

@@ -26,6 +26,9 @@ properties:
           - dlink,dir-685-panel
       - const: ilitek,ili9322
 
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   port: true
 

Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml

@@ -28,7 +28,8 @@ properties:
           - canaan,kd233-tft
       - const: ilitek,ili9341
 
-  reg: true
+  reg:
+    maxItems: 1
 
   dc-gpios:
     maxItems: 1

Documentation/devicetree/bindings/display/panel/ilitek,ili9805.yaml

@@ -20,9 +20,11 @@ properties:
           - tianma,tm041xdhg01
       - const: ilitek,ili9805
 
+  reg:
+    maxItems: 1
+
   avdd-supply: true
   dvdd-supply: true
-  reg: true
 
 required:
   - compatible

Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml

@@ -24,9 +24,11 @@ properties:
           - wanchanglong,w552946aba
       - const: ilitek,ili9881c
 
+  reg:
+    maxItems: 1
+
   backlight: true
   power-supply: true
-  reg: true
   reset-gpios: true
   rotation: true
 

Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml

@@ -17,10 +17,12 @@ properties:
   compatible:
     const: innolux,ej030na
 
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   power-supply: true
-  reg: true
   reset-gpios: true
 
 required:

Documentation/devicetree/bindings/display/panel/innolux,p097pfg.yaml

@@ -16,9 +16,11 @@ properties:
   compatible:
     const: innolux,p097pfg
 
+  reg:
+    maxItems: 1
+
   backlight: true
   enable-gpios: true
-  reg: true
 
   avdd-supply:
     description: The regulator that provides positive voltage

Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml

@@ -21,7 +21,8 @@ properties:
           - radxa,display-8hd-ad002
       - const: jadard,jd9365da-h3
 
-  reg: true
+  reg:
+    maxItems: 1
 
   vdd-supply:
     description: supply regulator for VDD, usually 3.3V

Documentation/devicetree/bindings/display/panel/jdi,lpm102a188a.yaml

@@ -26,7 +26,9 @@ properties:
   compatible:
     const: jdi,lpm102a188a
 
-  reg: true
+  reg:
+    maxItems: 1
+
   enable-gpios: true
   reset-gpios: true
   power-supply: true

Documentation/devicetree/bindings/display/panel/jdi,lt070me05000.yaml

@@ -16,8 +16,10 @@ properties:
   compatible:
     const: jdi,lt070me05000
 
+  reg:
+    maxItems: 1
+
   enable-gpios: true
-  reg: true
   reset-gpios: true
 
   vddp-supply:

Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml

@@ -17,10 +17,12 @@ properties:
   compatible:
     const: kingdisplay,kd035g6-54nt
 
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   power-supply: true
-  reg: true
   reset-gpios: true
 
   spi-3wire: true

Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml

@@ -18,6 +18,9 @@ properties:
   compatible:
     const: leadtek,ltk035c5444t
 
+  reg:
+    maxItems: 1
+
   spi-3wire: true
 
 required:

Documentation/devicetree/bindings/display/panel/leadtek,ltk050h3146w.yaml

@@ -18,7 +18,10 @@ properties:
       - leadtek,ltk050h3146w
       - leadtek,ltk050h3146w-a2
       - leadtek,ltk050h3148w
-  reg: true
+
+  reg:
+    maxItems: 1
+
   backlight: true
   reset-gpios: true
   iovcc-supply:

Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml

@@ -17,7 +17,10 @@ properties:
     enum:
       - leadtek,ltk101b4029w
       - leadtek,ltk500hd1829
-  reg: true
+
+  reg:
+    maxItems: 1
+
   backlight: true
   reset-gpios: true
   iovcc-supply:

Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml

@@ -21,7 +21,8 @@ properties:
   compatible:
     const: lg,lg4573
 
-  reg: true
+  reg:
+    maxItems: 1
 
 required:
   - compatible

Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml

@@ -17,6 +17,9 @@ properties:
   compatible:
     const: lgphilips,lb035q02
 
+  reg:
+    maxItems: 1
+
   label: true
   enable-gpios: true
   port: true

Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml

@@ -21,9 +21,11 @@ properties:
   compatible:
     const: nec,nl8048hl11
 
+  reg:
+    maxItems: 1
+
   label: true
   port: true
-  reg: true
   reset-gpios: true
 
   spi-max-frequency:

Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml

@@ -24,7 +24,9 @@ properties:
           - powkiddy,rk2023-panel
       - const: newvision,nv3051d
 
-  reg: true
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   reset-gpios:

Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml

@@ -24,7 +24,10 @@ properties:
       string determines how the NT35510 panel driver shall be configured
       to work with the indicated panel. The novatek,nt35510 compatible shall
       always be provided as a fallback.
-  reg: true
+
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   vdd-supply:
     description: regulator that supplies the vdd voltage

Documentation/devicetree/bindings/display/panel/novatek,nt35950.yaml

@@ -33,6 +33,9 @@ properties:
       to work with the indicated panel. The novatek,nt35950 compatible shall
       always be provided as a fallback.
 
+  reg:
+    maxItems: 1
+
   reset-gpios:
     maxItems: 1
     description: phandle of gpio for reset line - This should be 8mA, gpio
@@ -49,7 +52,6 @@ properties:
 
   backlight: true
   ports: true
-  reg: true
 
 required:
   - compatible

Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml

@@ -27,6 +27,9 @@ properties:
               - lenovo,j606f-boe-nt36523w
           - const: novatek,nt36523w
 
+  reg:
+    maxItems: 1
+
   reset-gpios:
     maxItems: 1
     description: phandle of gpio for reset line - This should be 8mA
@@ -34,7 +37,6 @@ properties:
   vddio-supply:
     description: regulator that supplies the I/O voltage
 
-  reg: true
   rotation: true
   backlight: true
 

Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml

@@ -29,6 +29,9 @@ properties:
       determines how the NT36672A panel driver is configured for the indicated
       panel. The novatek,nt36672a compatible shall always be provided as a fallback.
 
+  reg:
+    maxItems: 1
+
   reset-gpios:
     maxItems: 1
     description: phandle of gpio for reset line - This should be 8mA, gpio
@@ -44,7 +47,6 @@ properties:
   vddneg-supply:
     description: phandle of the negative boost supply regulator
 
-  reg: true
   port: true
   backlight: true
 

Documentation/devicetree/bindings/display/panel/olimex,lcd-olinuxino.yaml

@@ -38,10 +38,12 @@ properties:
   compatible:
     const: olimex,lcd-olinuxino
 
+  reg:
+    maxItems: 1
+
   backlight: true
   enable-gpios: true
   power-supply: true
-  reg: true
 
 required:
   - compatible

Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml

@@ -71,6 +71,9 @@ properties:
           - shineworld,lh133k
       - const: panel-mipi-dbi-spi
 
+  reg:
+    maxItems: 1
+
   write-only:
     type: boolean
     description:

Documentation/devicetree/bindings/display/panel/raydium,rm67191.yaml

@@ -16,7 +16,9 @@ properties:
   compatible:
     const: raydium,rm67191
 
-  reg: true
+  reg:
+    maxItems: 1
+
   port: true
   reset-gpios: true
   width-mm: true

Documentation/devicetree/bindings/display/panel/raydium,rm692e5.yaml

@@ -22,6 +22,9 @@ properties:
       - const: fairphone,fp5-rm692e5-boe
       - const: raydium,rm692e5
 
+  reg:
+    maxItems: 1
+
   dvdd-supply:
     description: Digital voltage rail
 
@@ -31,7 +34,6 @@ properties:
   vddio-supply:
     description: I/O voltage rail
 
-  reg: true
   port: true
 
 required:

Documentation/devicetree/bindings/display/panel/ronbo,rb070d30.yaml

@@ -14,7 +14,7 @@ properties:
     const: ronbo,rb070d30
 
   reg:
-    description: MIPI-DSI virtual channel
+    maxItems: 1
 
   power-gpios:
     description: GPIO used for the power pin

Documentation/devicetree/bindings/display/panel/samsung,amoled-mipi-dsi.yaml

@@ -33,7 +33,9 @@ properties:
         # Samsung S6E3HF2 5.65" 1600x2560 AMOLED panel
       - samsung,s6e3hf2
 
-  reg: true
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   enable-gpios: true
   te-gpios: true

Documentation/devicetree/bindings/display/panel/samsung,ams495qa01.yaml

@@ -11,12 +11,15 @@ maintainers:
 
 allOf:
   - $ref: panel-common.yaml#
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
 
 properties:
   compatible:
     const: samsung,ams495qa01
 
-  reg: true
+  reg:
+    maxItems: 1
+
   reset-gpios:
     description: reset gpio, must be GPIO_ACTIVE_LOW
   elvdd-supply:

Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml

@@ -17,9 +17,11 @@ properties:
   compatible:
     const: samsung,ld9040
 
+  reg:
+    maxItems: 1
+
   display-timings: true
   port: true
-  reg: true
   reset-gpios: true
 
   vdd3-supply:

Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml

@@ -21,7 +21,8 @@ properties:
   compatible:
     const: samsung,lms380kf01
 
-  reg: true
+  reg:
+    maxItems: 1
 
   interrupts:
     description: provides an optional ESD (electrostatic discharge)

Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml

@@ -20,7 +20,8 @@ properties:
   compatible:
     const: samsung,lms397kf04
 
-  reg: true
+  reg:
+    maxItems: 1
 
   reset-gpios: true
 

Documentation/devicetree/bindings/display/panel/samsung,s6d16d0.yaml

@@ -16,8 +16,10 @@ properties:
   compatible:
     const: samsung,s6d16d0
 
+  reg:
+    maxItems: 1
+
   port: true
-  reg: true
   reset-gpios: true
 
   vdd1-supply:

Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml

@@ -20,7 +20,8 @@ properties:
   compatible:
     const: samsung,s6d27a1
 
-  reg: true
+  reg:
+    maxItems: 1
 
   interrupts:
     description: provides an optional ESD (electrostatic discharge)

Documentation/devicetree/bindings/display/panel/samsung,s6d7aa0.yaml

@@ -24,7 +24,8 @@ properties:
           - samsung,ltl101at01
       - const: samsung,s6d7aa0
 
-  reg: true
+  reg:
+    maxItems: 1
 
   backlight:
     description:

Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml

@@ -18,7 +18,9 @@ properties:
   compatible:
     const: samsung,s6e63m0
 
-  reg: true
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   port: true
   default-brightness: true

Documentation/devicetree/bindings/display/panel/samsung,s6e88a0-ams452ef01.yaml

@@ -15,7 +15,10 @@ allOf:
 properties:
   compatible:
     const: samsung,s6e88a0-ams452ef01
-  reg: true
+
+  reg:
+    maxItems: 1
+
   port: true
   reset-gpios: true
   vdd3-supply:

Documentation/devicetree/bindings/display/panel/samsung,s6e8aa0.yaml

@@ -16,7 +16,9 @@ properties:
   compatible:
     const: samsung,s6e8aa0
 
-  reg: true
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   display-timings: true
 

Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml

@@ -37,7 +37,9 @@ properties:
       - enum:
           - sharp,lq101r1sx01
 
-  reg: true
+  reg:
+    maxItems: 1
+
   power-supply: true
   backlight: true
 

Documentation/devicetree/bindings/display/panel/sharp,ls043t1le01.yaml

@@ -16,7 +16,9 @@ properties:
   compatible:
     const: sharp,ls043t1le01-qhd
 
-  reg: true
+  reg:
+    maxItems: 1
+
   backlight: true
   reset-gpios: true
   port: true

Documentation/devicetree/bindings/display/panel/sharp,ls060t1sx01.yaml

@@ -16,7 +16,9 @@ properties:
   compatible:
     const: sharp,ls060t1sx01
 
-  reg: true
+  reg:
+    maxItems: 1
+
   backlight: true
   reset-gpios: true
   port: true

Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml

@@ -21,7 +21,9 @@ properties:
       - jasonic,jt240mhqs-hwt-ek-e3
       - sitronix,st7789v
 
-  reg: true
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   power-supply: true
   backlight: true

Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml

@@ -22,7 +22,10 @@ properties:
     enum:
       - sony,acx424akp
       - sony,acx424akm
-  reg: true
+
+  reg:
+    maxItems: 1
+
   reset-gpios: true
   vddi-supply:
     description: regulator that supplies the vddi voltage

Documentation/devicetree/bindings/display/panel/sony,acx565akm.yaml

@@ -17,6 +17,9 @@ properties:
   compatible:
     const: sony,acx565akm
 
+  reg:
+    maxItems: 1
+
   label: true
   reset-gpios: true
   port: true

Documentation/devicetree/bindings/display/panel/sony,td4353-jdi.yaml

@@ -20,7 +20,8 @@ properties:
   compatible:
     const: sony,td4353-jdi-tama
 
-  reg: true
+  reg:
+    maxItems: 1
 
   backlight: true
   width-mm: true

Documentation/devicetree/bindings/display/panel/sony,tulip-truly-nt35521.yaml

@@ -21,7 +21,8 @@ properties:
   compatible:
     const: sony,tulip-truly-nt35521
 
-  reg: true
+  reg:
+    maxItems: 1
 
   positive5-supply:
     description: Positive 5V supply

Documentation/devicetree/bindings/display/panel/synaptics,r63353.yaml

@@ -19,15 +19,17 @@ properties:
           - sharp,ls068b3sx02
       - const: syna,r63353
 
+  reg:
+    maxItems: 1
+
   avdd-supply: true
   dvdd-supply: true
-  reg: true
 
 required:
   - compatible
+  - reg
   - avdd-supply
   - dvdd-supply
-  - reg
   - reset-gpios
   - port
   - backlight

Documentation/devicetree/bindings/display/panel/tpo,td.yaml

@@ -22,7 +22,9 @@ properties:
         # Toppoly TD043MTEA1 Panel
       - tpo,td043mtea1
 
-  reg: true
+  reg:
+    maxItems: 1
+
   label: true
   reset-gpios: true
   backlight: true

Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml

@@ -52,7 +52,8 @@ properties:
           - const: tpo,tpg110
       - const: tpo,tpg110
 
-  reg: true
+  reg:
+    maxItems: 1
 
   grestb-gpios:
     maxItems: 1

Documentation/devicetree/bindings/display/panel/visionox,rm69299.yaml

@@ -20,7 +20,8 @@ properties:
   compatible:
     const: visionox,rm69299-1080p-display
 
-  reg: true
+  reg:
+    maxItems: 1
 
   vdda-supply:
     description: |

Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml

@@ -15,7 +15,10 @@ allOf:
 properties:
   compatible:
     const: xinpeng,xpp055c272
-  reg: true
+
+  reg:
+    maxItems: 1
+
   backlight: true
   port: true
   reset-gpios: true

Documentation/devicetree/bindings/display/samsung/samsung,exynos5-dp.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/samsung/samsung,exynos5-dp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos5250/Exynos5420 SoC Display Port
+
+maintainers:
+  - Inki Dae <inki.dae@samsung.com>
+  - Seung-Woo Kim <sw0312.kim@samsung.com>
+  - Kyungmin Park <kyungmin.park@samsung.com>
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+  compatible:
+    const: samsung,exynos5-dp
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: dp
+
+  display-timings:
+    $ref: /schemas/display/panel/display-timings.yaml#
+
+  interrupts:
+    maxItems: 1
+
+  hpd-gpios:
+    description:
+      Hotplug detect GPIO.
+      Indicates which GPIO should be used for hotplug detection
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    items:
+      - const: dp
+
+  power-domains:
+    maxItems: 1
+
+  interlaced:
+    type: boolean
+    deprecated: true
+    description:
+      Interlace scan mode. Progressive if defined, interlaced if not defined.
+
+  vsync-active-high:
+    type: boolean
+    deprecated: true
+    description:
+      VSYNC polarity configuration. High if defined, low if not defined
+
+  hsync-active-high:
+    type: boolean
+    deprecated: true
+    description:
+      HSYNC polarity configuration. High if defined, low if not defined
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Port node with one endpoint connected to a dp-connector node.
+
+    required:
+      - port
+
+  samsung,hpd-gpios:
+    maxItems: 1
+    deprecated: true
+
+  samsung,ycbcr-coeff:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    deprecated: true
+    description:
+      Deprecated prop that can parsed from drm_display_mode.
+
+  samsung,dynamic-range:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    deprecated: true
+    description:
+      Deprecated prop that can parsed from drm_display_mode.
+
+  samsung,color-space:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    deprecated: true
+    description:
+      Deprecated prop that can parsed from drm_display_info.
+
+  samsung,color-depth:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    deprecated: true
+    description:
+      Deprecated prop that can parsed from drm_display_info.
+
+  samsung,link-rate:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    deprecated: true
+    description:
+      Deprecated prop that can reading from monitor by dpcd method.
+
+  samsung,lane-count:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    deprecated: true
+    description:
+      Deprecated prop that can reading from monitor by dpcd method.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - phys
+  - phy-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/exynos5250.h>
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    dp-controller@145b0000 {
+        compatible = "samsung,exynos5-dp";
+        reg = <0x145b0000 0x1000>;
+        clocks = <&clock CLK_DP>;
+        clock-names = "dp";
+        interrupts = <10 3>;
+        interrupt-parent = <&combiner>;
+        phys = <&dp_phy>;
+        phy-names = "dp";
+        pinctrl-0 = <&dp_hpd>;
+        pinctrl-names = "default";
+        power-domains = <&pd_disp1>;
+
+        samsung,color-space = <0>;
+        samsung,color-depth = <1>;
+        samsung,link-rate = <0x0a>;
+        samsung,lane-count = <2>;
+        hpd-gpios = <&gpx0 7 GPIO_ACTIVE_HIGH>;
+
+        ports {
+            port {
+                dp_out: endpoint {
+                    remote-endpoint = <&bridge_in>;
+                };
+            };
+        };
+    };

Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml

@@ -784,7 +784,7 @@ patternProperties:
       gpio-2: GPIO4
 
     allOf:
-      - $ref: ../pinctrl/pincfg-node.yaml#
+      - $ref: /schemas/pinctrl/pincfg-node.yaml#
 
     properties:
       drive-open-drain: true

Documentation/devicetree/bindings/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml

@@ -25,12 +25,12 @@ properties:
       - const: allwinner,sun6i-a31-sc-nmi
         deprecated: true
       - const: allwinner,sun7i-a20-sc-nmi
-      - items:
-          - const: allwinner,sun8i-v3s-nmi
-          - const: allwinner,sun9i-a80-nmi
       - const: allwinner,sun9i-a80-nmi
       - items:
-          - const: allwinner,sun50i-a100-nmi
+          - enum:
+              - allwinner,sun8i-v3s-nmi
+              - allwinner,sun50i-a100-nmi
+              - allwinner,sun50i-h616-nmi
           - const: allwinner,sun9i-a80-nmi
 
   reg:

Documentation/devicetree/bindings/interrupt-controller/mediatek,mt6577-sysirq.yaml

@@ -48,7 +48,7 @@ properties:
   interrupt-controller: true
 
   "#interrupt-cells":
-    $ref: "arm,gic.yaml#/properties/#interrupt-cells"
+    $ref: arm,gic.yaml#/properties/#interrupt-cells
 
 required:
   - reg

Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml

@@ -39,6 +39,7 @@ properties:
           - renesas,intc-ex-r8a779a0    # R-Car V3U
           - renesas,intc-ex-r8a779f0    # R-Car S4-8
           - renesas,intc-ex-r8a779g0    # R-Car V4H
+          - renesas,intc-ex-r8a779h0    # R-Car V4M
       - const: renesas,irqc
 
   '#interrupt-cells':

Documentation/devicetree/bindings/media/amphion,vpu.yaml

@@ -44,7 +44,7 @@ patternProperties:
     description:
       Each vpu encoder or decoder correspond a MU, which used for communication
       between driver and firmware. Implement via mailbox on driver.
-    $ref: ../mailbox/fsl,mu.yaml#
+    $ref: /schemas/mailbox/fsl,mu.yaml#
 
 
   "^vpu-core@[0-9a-f]+$":

Documentation/devicetree/bindings/mtd/mtd.yaml

@@ -48,8 +48,8 @@ patternProperties:
     type: object
 
     allOf:
-      - $ref: ../nvmem/nvmem.yaml#
-      - $ref: ../nvmem/nvmem-deprecated-cells.yaml#
+      - $ref: /schemas/nvmem/nvmem.yaml#
+      - $ref: /schemas/nvmem/nvmem-deprecated-cells.yaml#
 
     unevaluatedProperties: false
 

Documentation/devicetree/bindings/net/sff,sfp.yaml

@@ -29,39 +29,39 @@ properties:
       allowable by a module in the slot, in milli-Watts. Presently, modules can
       be up to 1W, 1.5W or 2W.
 
-  "mod-def0-gpios":
+  mod-def0-gpios:
     maxItems: 1
     description:
       GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS) module
       presence input gpio signal, active (module absent) high. Must not be
       present for SFF modules
 
-  "los-gpios":
+  los-gpios:
     maxItems: 1
     description:
       GPIO phandle and a specifier of the Receiver Loss of Signal Indication
       input gpio signal, active (signal lost) high
 
-  "tx-fault-gpios":
+  tx-fault-gpios:
     maxItems: 1
     description:
       GPIO phandle and a specifier of the Module Transmitter Fault input gpio
       signal, active (fault condition) high
 
-  "tx-disable-gpios":
+  tx-disable-gpios:
     maxItems: 1
     description:
       GPIO phandle and a specifier of the Transmitter Disable output gpio
       signal, active (Tx disable) high
 
-  "rate-select0-gpios":
+  rate-select0-gpios:
     maxItems: 1
     description:
       GPIO phandle and a specifier of the Rx Signaling Rate Select (AKA RS0)
       output gpio signal, low - low Rx rate, high - high Rx rate Must not be
       present for SFF modules
 
-  "rate-select1-gpios":
+  rate-select1-gpios:
     maxItems: 1
     description:
       GPIO phandle and a specifier of the Tx Signaling Rate Select (AKA RS1)

Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml

@@ -65,7 +65,8 @@ properties:
       - const: msi
 
   ranges:
-    maxItems: 1
+    minItems: 1
+    maxItems: 3
 
   dma-ranges:
     minItems: 1

Documentation/devicetree/bindings/pci/qcom,pcie-sm8350.yaml

@@ -71,28 +71,6 @@ properties:
     items:
       - const: pci
 
-oneOf:
-  - properties:
-      interrupts:
-        maxItems: 1
-      interrupt-names:
-        items:
-          - const: msi
-
-  - properties:
-      interrupts:
-        minItems: 8
-      interrupt-names:
-        items:
-          - const: msi0
-          - const: msi1
-          - const: msi2
-          - const: msi3
-          - const: msi4
-          - const: msi5
-          - const: msi6
-          - const: msi7
-
 allOf:
   - $ref: qcom,pcie-common.yaml#
 

Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml

@@ -48,13 +48,16 @@ properties:
   interrupt-controller:
     description: Interrupt controller node for handling legacy PCI interrupts.
     type: object
+    additionalProperties: false
+
     properties:
       "#address-cells":
         const: 0
+
       "#interrupt-cells":
         const: 1
-      "interrupt-controller": true
-    additionalProperties: false
+
+      interrupt-controller: true
 
 required:
   - reg

Documentation/devicetree/bindings/pci/xlnx,nwl-pcie.yaml

@@ -84,7 +84,7 @@ properties:
       "#interrupt-cells":
         const: 1
 
-      "interrupt-controller": true
+      interrupt-controller: true
 
     required:
       - "#address-cells"

Documentation/devicetree/bindings/phy/brcm,sata-phy.yaml

@@ -59,14 +59,14 @@ patternProperties:
       "#phy-cells":
         const: 0
 
-      "brcm,enable-ssc":
+      brcm,enable-ssc:
         $ref: /schemas/types.yaml#/definitions/flag
         description: |
           Use spread spectrum clocking (SSC) on this port
           This property is not applicable for "brcm,iproc-ns2-sata-phy",
           "brcm,iproc-nsp-sata-phy" and "brcm,iproc-sr-sata-phy".
 
-      "brcm,rxaeq-mode":
+      brcm,rxaeq-mode:
         $ref: /schemas/types.yaml#/definitions/string
         description:
           String that indicates the desired RX equalizer mode.
@@ -75,7 +75,7 @@ patternProperties:
           - auto
           - manual
 
-      "brcm,rxaeq-value":
+      brcm,rxaeq-value:
         $ref: /schemas/types.yaml#/definitions/uint32
         description: |
             When 'brcm,rxaeq-mode' is set to "manual", provides the RX
@@ -83,7 +83,7 @@ patternProperties:
         minimum: 0
         maximum: 63
 
-      "brcm,tx-amplitude-millivolt":
+      brcm,tx-amplitude-millivolt:
         description: |
             Transmit amplitude voltage in millivolt.
         $ref: /schemas/types.yaml#/definitions/uint32

Documentation/devicetree/bindings/regulator/ti,tps62864.yaml

@@ -24,7 +24,7 @@ properties:
     type: object
 
     properties:
-      "SW":
+      SW:
         type: object
         $ref: regulator.yaml#
         unevaluatedProperties: false

Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml

@@ -23,7 +23,9 @@ properties:
     oneOf:
       - const: fsl,s32v234-linflexuart
       - items:
-          - const: nxp,s32g2-linflexuart
+          - enum:
+              - nxp,s32g2-linflexuart
+              - nxp,s32g3-linflexuart
           - const: fsl,s32v234-linflexuart
 
   reg:

Documentation/devicetree/bindings/soc/tegra/nvidia,tegra20-pmc.yaml

@@ -365,9 +365,9 @@ allOf:
 additionalProperties: false
 
 dependencies:
-  "nvidia,suspend-mode": ["nvidia,core-pwr-off-time", "nvidia,cpu-pwr-off-time"]
-  "nvidia,core-pwr-off-time": ["nvidia,core-pwr-good-time"]
-  "nvidia,cpu-pwr-off-time": ["nvidia,cpu-pwr-good-time"]
+  nvidia,suspend-mode: ["nvidia,core-pwr-off-time", "nvidia,cpu-pwr-off-time"]
+  nvidia,core-pwr-off-time: ["nvidia,core-pwr-good-time"]
+  nvidia,cpu-pwr-off-time: ["nvidia,cpu-pwr-good-time"]
 
 examples:
   - |

Documentation/devicetree/bindings/timer/renesas,cmt.yaml

@@ -103,6 +103,7 @@ properties:
               - renesas,r8a779a0-cmt0     # 32-bit CMT0 on R-Car V3U
               - renesas,r8a779f0-cmt0     # 32-bit CMT0 on R-Car S4-8
               - renesas,r8a779g0-cmt0     # 32-bit CMT0 on R-Car V4H
+              - renesas,r8a779h0-cmt0     # 32-bit CMT0 on R-Car V4M
           - const: renesas,rcar-gen4-cmt0 # 32-bit CMT0 on R-Car Gen4
 
       - items:
@@ -110,6 +111,7 @@ properties:
               - renesas,r8a779a0-cmt1     # 48-bit CMT on R-Car V3U
               - renesas,r8a779f0-cmt1     # 48-bit CMT on R-Car S4-8
               - renesas,r8a779g0-cmt1     # 48-bit CMT on R-Car V4H
+              - renesas,r8a779h0-cmt1     # 48-bit CMT on R-Car V4M
           - const: renesas,rcar-gen4-cmt1 # 48-bit CMT on R-Car Gen4
 
   reg:

Documentation/devicetree/bindings/timer/renesas,tmu.yaml

@@ -39,6 +39,7 @@ properties:
           - renesas,tmu-r8a779a0 # R-Car V3U
           - renesas,tmu-r8a779f0 # R-Car S4-8
           - renesas,tmu-r8a779g0 # R-Car V4H
+          - renesas,tmu-r8a779h0 # R-Car V4M
       - const: renesas,tmu
 
   reg:

Documentation/devicetree/bindings/tpm/ibm,vtpm.yaml

@@ -33,13 +33,13 @@ properties:
   reg:
     maxItems: 1
 
-  'ibm,#dma-address-cells':
+  ibm,#dma-address-cells:
     description:
       number of cells that are used to encode the physical address field of
       dma-window properties
     $ref: /schemas/types.yaml#/definitions/uint32-array
 
-  'ibm,#dma-size-cells':
+  ibm,#dma-size-cells:
     description:
       number of cells that are used to encode the size field of
       dma-window properties

Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml

@@ -29,6 +29,7 @@ properties:
           - mediatek,mt7623-xhci
           - mediatek,mt7629-xhci
           - mediatek,mt7986-xhci
+          - mediatek,mt7988-xhci
           - mediatek,mt8173-xhci
           - mediatek,mt8183-xhci
           - mediatek,mt8186-xhci

Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/aspeed,ast2400-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed watchdog timer controllers
+
+maintainers:
+  - Andrew Jeffery <andrew@codeconstruct.com.au>
+
+properties:
+  compatible:
+    enum:
+      - aspeed,ast2400-wdt
+      - aspeed,ast2500-wdt
+      - aspeed,ast2600-wdt
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+    description: >
+      The clock used to drive the watchdog counter. From the AST2500 no source
+      other than the 1MHz clock can be selected, so the clocks property is
+      optional.
+
+  aspeed,reset-type:
+    $ref: /schemas/types.yaml#/definitions/string
+    enum:
+      - cpu
+      - soc
+      - system
+      - none
+    default: system
+    description: >
+      The watchdog can be programmed to generate one of three different types of
+      reset when a timeout occcurs.
+
+      Specifying 'cpu' will only reset the processor on a timeout event.
+
+      Specifying 'soc' will reset a configurable subset of the SoC's controllers
+      on a timeout event. Controllers critical to the SoC's operation may remain
+      untouched. The set of SoC controllers to reset may be specified via the
+      aspeed,reset-mask property if the node has the aspeed,ast2500-wdt or
+      aspeed,ast2600-wdt compatible.
+
+      Specifying 'system' will reset all controllers on a timeout event, as if
+      EXTRST had been asserted.
+
+      Specifying 'none' will cause the timeout event to have no reset effect.
+      Another watchdog engine on the chip must be used for chip reset operations.
+
+  aspeed,alt-boot:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: >
+      Direct the watchdog to configure the SoC to boot from the alternative boot
+      region if a timeout occurs.
+
+  aspeed,external-signal:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: >
+      Assert the timeout event on an external signal pin associated with the
+      watchdog controller instance. The pin must be muxed appropriately.
+
+  aspeed,ext-pulse-duration:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: >
+      The duration, in microseconds, of the pulse emitted on the external signal
+      pin.
+
+  aspeed,ext-push-pull:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: >
+      If aspeed,external-signal is specified in the node, set the external
+      signal pin's drive type to push-pull. If aspeed,ext-push-pull is not
+      specified then the pin is configured as open-drain.
+
+  aspeed,ext-active-high:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: >
+      If both aspeed,external-signal and aspeed,ext-push-pull are specified in
+      the node, set the pulse polarity to active-high. If aspeed,ext-active-high
+      is not specified then the pin is configured as active-low.
+
+  aspeed,reset-mask:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 2
+    description: >
+      A bitmask indicating which peripherals will be reset if the watchdog
+      timer expires. On AST2500 SoCs this should be a single word defined using
+      the AST2500_WDT_RESET_* macros; on AST2600 SoCs this should be a two-word
+      array with the first word defined using the AST2600_WDT_RESET1_* macros,
+      and the second word defined using the AST2600_WDT_RESET2_* macros.
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - if:
+      anyOf:
+        - required:
+            - aspeed,ext-push-pull
+        - required:
+            - aspeed,ext-active-high
+        - required:
+            - aspeed,reset-mask
+    then:
+      properties:
+        compatible:
+          enum:
+            - aspeed,ast2500-wdt
+            - aspeed,ast2600-wdt
+  - if:
+      required:
+        - aspeed,ext-active-high
+    then:
+      required:
+        - aspeed,ext-push-pull
+
+additionalProperties: false
+
+examples:
+  - |
+    watchdog@1e785000 {
+        compatible = "aspeed,ast2400-wdt";
+        reg = <0x1e785000 0x1c>;
+        aspeed,reset-type = "system";
+        aspeed,external-signal;
+    };
+  - |
+    #include <dt-bindings/watchdog/aspeed-wdt.h>
+    watchdog@1e785040 {
+        compatible = "aspeed,ast2600-wdt";
+        reg = <0x1e785040 0x40>;
+        aspeed,reset-type = "soc";
+        aspeed,reset-mask = <AST2600_WDT_RESET1_DEFAULT
+                            (AST2600_WDT_RESET2_DEFAULT & ~AST2600_WDT_RESET2_LPC)>;
+    };

Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt

-Aspeed Watchdog Timer
-
-Required properties:
- - compatible: must be one of:
-	- "aspeed,ast2400-wdt"
-	- "aspeed,ast2500-wdt"
-	- "aspeed,ast2600-wdt"
-
- - reg: physical base address of the controller and length of memory mapped
-   region
-
-Optional properties:
-
- - aspeed,reset-type = "cpu|soc|system|none"
-
-   Reset behavior - Whenever a timeout occurs the watchdog can be programmed
-   to generate one of three different, mutually exclusive, types of resets.
-
-   Type "none" can be specified to indicate that no resets are to be done.
-   This is useful in situations where another watchdog engine on chip is
-   to perform the reset.
-
-   If 'aspeed,reset-type=' is not specified the default is to enable system
-   reset.
-
-   Reset types:
-
-        - cpu: Reset CPU on watchdog timeout
-
-        - soc: Reset 'System on Chip' on watchdog timeout
-
-        - system: Reset system on watchdog timeout
-
-        - none: No reset is performed on timeout. Assumes another watchdog
-                engine is responsible for this.
-
- - aspeed,alt-boot:    If property is present then boot from alternate block.
- - aspeed,external-signal: If property is present then signal is sent to
-			external reset counter (only WDT1 and WDT2). If not
-			specified no external signal is sent.
- - aspeed,ext-pulse-duration: External signal pulse duration in microseconds
-
-Optional properties for AST2500-compatible watchdogs:
- - aspeed,ext-push-pull: If aspeed,external-signal is present, set the pin's
-			 drive type to push-pull. The default is open-drain.
- - aspeed,ext-active-high: If aspeed,external-signal is present and and the pin
-			   is configured as push-pull, then set the pulse
-			   polarity to active-high. The default is active-low.
-
-Optional properties for AST2500- and AST2600-compatible watchdogs:
- - aspeed,reset-mask: A bitmask indicating which peripherals will be reset if
-		      the watchdog timer expires.  On AST2500 this should be a
-		      single word defined using the AST2500_WDT_RESET_* macros;
-		      on AST2600 this should be a two-word array with the first
-		      word defined using the AST2600_WDT_RESET1_* macros and the
-		      second word defined using the AST2600_WDT_RESET2_* macros.
-
-Examples:
-
-	wdt1: watchdog@1e785000 {
-		compatible = "aspeed,ast2400-wdt";
-		reg = <0x1e785000 0x1c>;
-		aspeed,reset-type = "system";
-		aspeed,external-signal;
-	};
-
-	#include <dt-bindings/watchdog/aspeed-wdt.h>
-	wdt2: watchdog@1e785040 {
-		compatible = "aspeed,ast2600-wdt";
-		reg = <0x1e785040 0x40>;
-		aspeed,reset-mask = <AST2600_WDT_RESET1_DEFAULT
-				     (AST2600_WDT_RESET2_DEFAULT & ~AST2600_WDT_RESET2_LPC)>;
-	};

drivers/of/address.c

@@ -486,34 +486,30 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
  * device that had registered logical PIO mapping, and the return code is
  * relative to that node.
  */
-static u64 __of_translate_address(struct device_node *dev,
+static u64 __of_translate_address(struct device_node *node,
 				  struct device_node *(*get_parent)(const struct device_node *),
 				  const __be32 *in_addr, const char *rprop,
 				  struct device_node **host)
 {
-	struct device_node *parent = NULL;
+	struct device_node *dev __free(device_node) = of_node_get(node);
+	struct device_node *parent __free(device_node) = get_parent(dev);
 	struct of_bus *bus, *pbus;
 	__be32 addr[OF_MAX_ADDR_CELLS];
 	int na, ns, pna, pns;
-	u64 result = OF_BAD_ADDR;
 
 	pr_debug("** translation for device %pOF **\n", dev);
 
-	/* Increase refcount at current level */
-	of_node_get(dev);
-
 	*host = NULL;
-	/* Get parent & match bus type */
-	parent = get_parent(dev);
+
 	if (parent == NULL)
-		goto bail;
+		return OF_BAD_ADDR;
 	bus = of_match_bus(parent);
 
 	/* Count address cells & copy address locally */
 	bus->count_cells(dev, &na, &ns);
 	if (!OF_CHECK_COUNTS(na, ns)) {
 		pr_debug("Bad cell count for %pOF\n", dev);
-		goto bail;
+		return OF_BAD_ADDR;
 	}
 	memcpy(addr, in_addr, na * 4);
 
@@ -533,8 +529,7 @@ static u64 __of_translate_address(struct device_node *dev,
 		/* If root, we have finished */
 		if (parent == NULL) {
 			pr_debug("reached root node\n");
-			result = of_read_number(addr, na);
-			break;
+			return of_read_number(addr, na);
 		}
 
 		/*
@@ -543,11 +538,11 @@ static u64 __of_translate_address(struct device_node *dev,
 		 */
 		iorange = find_io_range_by_fwnode(&dev->fwnode);
 		if (iorange && (iorange->flags != LOGIC_PIO_CPU_MMIO)) {
-			result = of_read_number(addr + 1, na - 1);
+			u64 result = of_read_number(addr + 1, na - 1);
 			pr_debug("indirectIO matched(%pOF) 0x%llx\n",
 				 dev, result);
-			*host = of_node_get(dev);
-			break;
+			*host = no_free_ptr(dev);
+			return result;
 		}
 
 		/* Get new parent bus and counts */
@@ -555,7 +550,7 @@ static u64 __of_translate_address(struct device_node *dev,
 		pbus->count_cells(dev, &pna, &pns);
 		if (!OF_CHECK_COUNTS(pna, pns)) {
 			pr_err("Bad cell count for %pOF\n", dev);
-			break;
+			return OF_BAD_ADDR;
 		}
 
 		pr_debug("parent bus is %s (na=%d, ns=%d) on %pOF\n",
@@ -563,7 +558,7 @@ static u64 __of_translate_address(struct device_node *dev,
 
 		/* Apply bus translation */
 		if (of_translate_one(dev, bus, pbus, addr, na, ns, pna, rprop))
-			break;
+			return OF_BAD_ADDR;
 
 		/* Complete the move up one level */
 		na = pna;
@@ -572,11 +567,8 @@ static u64 __of_translate_address(struct device_node *dev,
 
 		of_dump_addr("one level translation:", addr, na);
 	}
- bail:
-	of_node_put(parent);
-	of_node_put(dev);
 
-	return result;
+	unreachable();
 }
 
 u64 of_translate_address(struct device_node *dev, const __be32 *in_addr)
@@ -654,19 +646,16 @@ EXPORT_SYMBOL(of_translate_dma_address);
 const __be32 *of_translate_dma_region(struct device_node *dev, const __be32 *prop,
 				      phys_addr_t *start, size_t *length)
 {
-	struct device_node *parent;
+	struct device_node *parent __free(device_node) = __of_get_dma_parent(dev);
 	u64 address, size;
 	int na, ns;
 
-	parent = __of_get_dma_parent(dev);
 	if (!parent)
 		return NULL;
 
 	na = of_bus_n_addr_cells(parent);
 	ns = of_bus_n_size_cells(parent);
 
-	of_node_put(parent);
-
 	address = of_translate_dma_address(dev, prop);
 	if (address == OF_BAD_ADDR)
 		return NULL;
@@ -688,21 +677,19 @@ const __be32 *__of_get_address(struct device_node *dev, int index, int bar_no,
 {
 	const __be32 *prop;
 	unsigned int psize;
-	struct device_node *parent;
+	struct device_node *parent __free(device_node) = of_get_parent(dev);
 	struct of_bus *bus;
 	int onesize, i, na, ns;
 
-	/* Get parent & match bus type */
-	parent = of_get_parent(dev);
 	if (parent == NULL)
 		return NULL;
+
+	/* match the parent's bus type */
 	bus = of_match_bus(parent);
-	if (strcmp(bus->name, "pci") && (bar_no >= 0)) {
-		of_node_put(parent);
+	if (strcmp(bus->name, "pci") && (bar_no >= 0))
 		return NULL;
-	}
+
 	bus->count_cells(dev, &na, &ns);
-	of_node_put(parent);
 	if (!OF_CHECK_ADDR_COUNT(na))
 		return NULL;
 
@@ -888,14 +875,13 @@ static u64 of_translate_ioport(struct device_node *dev, const __be32 *in_addr,
  */
 int of_dma_get_range(struct device_node *np, const struct bus_dma_region **map)
 {
-	struct device_node *node = of_node_get(np);
+	struct device_node *node __free(device_node) = of_node_get(np);
 	const __be32 *ranges = NULL;
 	bool found_dma_ranges = false;
 	struct of_range_parser parser;
 	struct of_range range;
 	struct bus_dma_region *r;
 	int len, num_ranges = 0;
-	int ret = 0;
 
 	while (node) {
 		ranges = of_get_property(node, "dma-ranges", &len);
@@ -905,10 +891,9 @@ int of_dma_get_range(struct device_node *np, const struct bus_dma_region **map)
 			break;
 
 		/* Once we find 'dma-ranges', then a missing one is an error */
-		if (found_dma_ranges && !ranges) {
-			ret = -ENODEV;
-			goto out;
-		}
+		if (found_dma_ranges && !ranges)
+			return -ENODEV;
+
 		found_dma_ranges = true;
 
 		node = of_get_next_dma_parent(node);
@@ -916,10 +901,8 @@ int of_dma_get_range(struct device_node *np, const struct bus_dma_region **map)
 
 	if (!node || !ranges) {
 		pr_debug("no dma-ranges found for node(%pOF)\n", np);
-		ret = -ENODEV;
-		goto out;
+		return -ENODEV;
 	}
-
 	of_dma_range_parser_init(&parser, node);
 	for_each_of_range(&parser, &range) {
 		if (range.cpu_addr == OF_BAD_ADDR) {
@@ -930,16 +913,12 @@ int of_dma_get_range(struct device_node *np, const struct bus_dma_region **map)
 		num_ranges++;
 	}
 
-	if (!num_ranges) {
-		ret = -EINVAL;
-		goto out;
-	}
+	if (!num_ranges)
+		return -EINVAL;
 
 	r = kcalloc(num_ranges + 1, sizeof(*r), GFP_KERNEL);
-	if (!r) {
-		ret = -ENOMEM;
-		goto out;
-	}
+	if (!r)
+		return -ENOMEM;
 
 	/*
 	 * Record all info in the generic DMA ranges array for struct device,
@@ -957,9 +936,7 @@ int of_dma_get_range(struct device_node *np, const struct bus_dma_region **map)
 		r->size = range.size;
 		r++;
 	}
-out:
-	of_node_put(node);
-	return ret;
+	return 0;
 }
 #endif /* CONFIG_HAS_DMA */
 
@@ -1016,24 +993,18 @@ phys_addr_t __init of_dma_get_max_cpu_address(struct device_node *np)
  */
 bool of_dma_is_coherent(struct device_node *np)
 {
-	struct device_node *node;
-	bool is_coherent = dma_default_coherent;
-
-	node = of_node_get(np);
+	struct device_node *node __free(device_node) = of_node_get(np);
 
 	while (node) {
-		if (of_property_read_bool(node, "dma-coherent")) {
-			is_coherent = true;
-			break;
-		}
-		if (of_property_read_bool(node, "dma-noncoherent")) {
-			is_coherent = false;
-			break;
-		}
+		if (of_property_read_bool(node, "dma-coherent"))
+			return true;
+
+		if (of_property_read_bool(node, "dma-noncoherent"))
+			return false;
+
 		node = of_get_next_dma_parent(node);
 	}
-	of_node_put(node);
-	return is_coherent;
+	return dma_default_coherent;
 }
 EXPORT_SYMBOL_GPL(of_dma_is_coherent);
 
@@ -1049,20 +1020,14 @@ EXPORT_SYMBOL_GPL(of_dma_is_coherent);
  */
 static bool of_mmio_is_nonposted(struct device_node *np)
 {
-	struct device_node *parent;
-	bool nonposted;
-
 	if (!IS_ENABLED(CONFIG_ARCH_APPLE))
 		return false;
 
-	parent = of_get_parent(np);
+	struct device_node *parent __free(device_node) = of_get_parent(np);
 	if (!parent)
 		return false;
 
-	nonposted = of_property_read_bool(parent, "nonposted-mmio");
-
-	of_node_put(parent);
-	return nonposted;
+	return of_property_read_bool(parent, "nonposted-mmio");
 }
 
 static int __of_address_to_resource(struct device_node *dev, int index, int bar_no,

drivers/of/base.c

@@ -16,6 +16,7 @@
 
 #define pr_fmt(fmt)	"OF: " fmt
 
+#include <linux/cleanup.h>
 #include <linux/console.h>
 #include <linux/ctype.h>
 #include <linux/cpu.h>
@@ -1393,8 +1394,10 @@ int of_parse_phandle_with_args_map(const struct device_node *np,
 				   const char *stem_name,
 				   int index, struct of_phandle_args *out_args)
 {
-	char *cells_name, *map_name = NULL, *mask_name = NULL;
-	char *pass_name = NULL;
+	char *cells_name __free(kfree) = kasprintf(GFP_KERNEL, "#%s-cells", stem_name);
+	char *map_name __free(kfree) = kasprintf(GFP_KERNEL, "%s-map", stem_name);
+	char *mask_name __free(kfree) = kasprintf(GFP_KERNEL, "%s-map-mask", stem_name);
+	char *pass_name __free(kfree) = kasprintf(GFP_KERNEL, "%s-map-pass-thru", stem_name);
 	struct device_node *cur, *new = NULL;
 	const __be32 *map, *mask, *pass;
 	static const __be32 dummy_mask[] = { [0 ... MAX_PHANDLE_ARGS] = cpu_to_be32(~0) };
@@ -1407,27 +1410,13 @@ int of_parse_phandle_with_args_map(const struct device_node *np,
 	if (index < 0)
 		return -EINVAL;
 
-	cells_name = kasprintf(GFP_KERNEL, "#%s-cells", stem_name);
-	if (!cells_name)
+	if (!cells_name || !map_name || !mask_name || !pass_name)
 		return -ENOMEM;
 
-	ret = -ENOMEM;
-	map_name = kasprintf(GFP_KERNEL, "%s-map", stem_name);
-	if (!map_name)
-		goto free;
-
-	mask_name = kasprintf(GFP_KERNEL, "%s-map-mask", stem_name);
-	if (!mask_name)
-		goto free;
-
-	pass_name = kasprintf(GFP_KERNEL, "%s-map-pass-thru", stem_name);
-	if (!pass_name)
-		goto free;
-
 	ret = __of_parse_phandle_with_args(np, list_name, cells_name, -1, index,
 					   out_args);
 	if (ret)
-		goto free;
+		return ret;
 
 	/* Get the #<list>-cells property */
 	cur = out_args->np;
@@ -1444,8 +1433,7 @@ int of_parse_phandle_with_args_map(const struct device_node *np,
 		/* Get the <list>-map property */
 		map = of_get_property(cur, map_name, &map_len);
 		if (!map) {
-			ret = 0;
-			goto free;
+			return 0;
 		}
 		map_len /= sizeof(u32);
 
@@ -1521,12 +1509,6 @@ int of_parse_phandle_with_args_map(const struct device_node *np,
 put:
 	of_node_put(cur);
 	of_node_put(new);
-free:
-	kfree(mask_name);
-	kfree(map_name);
-	kfree(cells_name);
-	kfree(pass_name);
-
 	return ret;
 }
 EXPORT_SYMBOL(of_parse_phandle_with_args_map);

drivers/of/dynamic.c

@@ -9,6 +9,7 @@
 
 #define pr_fmt(fmt)	"OF: " fmt
 
+#include <linux/cleanup.h>
 #include <linux/device.h>
 #include <linux/of.h>
 #include <linux/spinlock.h>
@@ -306,15 +307,20 @@ int of_detach_node(struct device_node *np)
 }
 EXPORT_SYMBOL_GPL(of_detach_node);
 
+void __of_prop_free(struct property *prop)
+{
+	kfree(prop->name);
+	kfree(prop->value);
+	kfree(prop);
+}
+
 static void property_list_free(struct property *prop_list)
 {
 	struct property *prop, *next;
 
 	for (prop = prop_list; prop != NULL; prop = next) {
 		next = prop->next;
-		kfree(prop->name);
-		kfree(prop->value);
-		kfree(prop);
+		__of_prop_free(prop);
 	}
 }
 
@@ -427,9 +433,7 @@ struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags)
 	return new;
 
  err_free:
-	kfree(new->name);
-	kfree(new->value);
-	kfree(new);
+	__of_prop_free(new);
 	return NULL;
 }
 
@@ -471,9 +475,7 @@ struct device_node *__of_node_dup(const struct device_node *np,
 			if (!new_pp)
 				goto err_prop;
 			if (__of_add_property(node, new_pp)) {
-				kfree(new_pp->name);
-				kfree(new_pp->value);
-				kfree(new_pp);
+				__of_prop_free(new_pp);
 				goto err_prop;
 			}
 		}
@@ -933,11 +935,8 @@ static int of_changeset_add_prop_helper(struct of_changeset *ocs,
 		return -ENOMEM;
 
 	ret = of_changeset_add_property(ocs, np, new_pp);
-	if (ret) {
-		kfree(new_pp->name);
-		kfree(new_pp->value);
-		kfree(new_pp);
-	}
+	if (ret)
+		__of_prop_free(new_pp);
 
 	return ret;
 }
@@ -1033,10 +1032,9 @@ int of_changeset_add_prop_u32_array(struct of_changeset *ocs,
 				    const u32 *array, size_t sz)
 {
 	struct property prop;
-	__be32 *val;
-	int i, ret;
+	__be32 *val __free(kfree) = kcalloc(sz, sizeof(__be32), GFP_KERNEL);
+	int i;
 
-	val = kcalloc(sz, sizeof(__be32), GFP_KERNEL);
 	if (!val)
 		return -ENOMEM;
 
@@ -1046,9 +1044,6 @@ int of_changeset_add_prop_u32_array(struct of_changeset *ocs,
 	prop.length = sizeof(u32) * sz;
 	prop.value = (void *)val;
 
-	ret = of_changeset_add_prop_helper(ocs, np, &prop);
-	kfree(val);
-
-	return ret;
+	return of_changeset_add_prop_helper(ocs, np, &prop);
 }
 EXPORT_SYMBOL_GPL(of_changeset_add_prop_u32_array);

drivers/of/module.c

@@ -29,14 +29,15 @@ ssize_t of_modalias(const struct device_node *np, char *str, ssize_t len)
 	csize = snprintf(str, len, "of:N%pOFn%c%s", np, 'T',
 			 of_node_get_device_type(np));
 	tsize = csize;
+	if (csize >= len)
+		csize = len > 0 ? len - 1 : 0;
 	len -= csize;
-	if (str)
-		str += csize;
+	str += csize;
 
 	of_property_for_each_string(np, "compatible", p, compat) {
 		csize = strlen(compat) + 1;
 		tsize += csize;
-		if (csize > len)
+		if (csize >= len)
 			continue;
 
 		csize = snprintf(str, len, "C%s", compat);

drivers/of/of_private.h

@@ -123,6 +123,7 @@ extern void *__unflatten_device_tree(const void *blob,
  * own the devtree lock or work on detached trees only.
  */
 struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags);
+void __of_prop_free(struct property *prop);
 struct device_node *__of_node_dup(const struct device_node *np,
 				  const char *full_name);
 

drivers/of/of_reserved_mem.c

@@ -437,17 +437,10 @@ void __init fdt_init_reserved_mem(void)
 	for (i = 0; i < reserved_mem_count; i++) {
 		struct reserved_mem *rmem = &reserved_mem[i];
 		unsigned long node = rmem->fdt_node;
-		int len;
-		const __be32 *prop;
 		int err = 0;
 		bool nomap;
 
 		nomap = of_get_flat_dt_prop(node, "no-map", NULL) != NULL;
-		prop = of_get_flat_dt_prop(node, "phandle", &len);
-		if (!prop)
-			prop = of_get_flat_dt_prop(node, "linux,phandle", &len);
-		if (prop)
-			rmem->phandle = of_read_number(prop, len/4);
 
 		if (rmem->size == 0)
 			err = __reserved_mem_alloc_size(node, rmem->name,
@@ -477,19 +470,6 @@ void __init fdt_init_reserved_mem(void)
 	}
 }
 
-static inline struct reserved_mem *__find_rmem(struct device_node *node)
-{
-	unsigned int i;
-
-	if (!node->phandle)
-		return NULL;
-
-	for (i = 0; i < reserved_mem_count; i++)
-		if (reserved_mem[i].phandle == node->phandle)
-			return &reserved_mem[i];
-	return NULL;
-}
-
 struct rmem_assigned_device {
 	struct device *dev;
 	struct reserved_mem *rmem;
@@ -534,7 +514,7 @@ int of_reserved_mem_device_init_by_idx(struct device *dev,
 		return 0;
 	}
 
-	rmem = __find_rmem(target);
+	rmem = of_reserved_mem_lookup(target);
 	of_node_put(target);
 
 	if (!rmem || !rmem->ops || !rmem->ops->device_init)

drivers/of/overlay.c

@@ -262,9 +262,7 @@ static struct property *dup_and_fixup_symbol_prop(
 	return new_prop;
 
 err_free_new_prop:
-	kfree(new_prop->name);
-	kfree(new_prop->value);
-	kfree(new_prop);
+	__of_prop_free(new_prop);
 err_free_target_path:
 	kfree(target_path);
 
@@ -361,11 +359,8 @@ static int add_changeset_property(struct overlay_changeset *ovcs,
 		pr_err("WARNING: memory leak will occur if overlay removed, property: %pOF/%s\n",
 		       target->np, new_prop->name);
 
-	if (ret) {
-		kfree(new_prop->name);
-		kfree(new_prop->value);
-		kfree(new_prop);
-	}
+	if (ret)
+		__of_prop_free(new_prop);
 	return ret;
 }
 

drivers/of/property.c

@@ -40,15 +40,12 @@
  */
 bool of_graph_is_present(const struct device_node *node)
 {
-	struct device_node *ports, *port;
+	struct device_node *ports __free(device_node) = of_get_child_by_name(node, "ports");
 
-	ports = of_get_child_by_name(node, "ports");
 	if (ports)
 		node = ports;
 
-	port = of_get_child_by_name(node, "port");
-	of_node_put(ports);
-	of_node_put(port);
+	struct device_node *port __free(device_node) = of_get_child_by_name(node, "port");
 
 	return !!port;
 }
@@ -579,7 +576,8 @@ EXPORT_SYMBOL_GPL(of_prop_next_string);
 int of_graph_parse_endpoint(const struct device_node *node,
 			    struct of_endpoint *endpoint)
 {
-	struct device_node *port_node = of_get_parent(node);
+	struct device_node *port_node __free(device_node) =
+			    of_get_parent(node);
 
 	WARN_ONCE(!port_node, "%s(): endpoint %pOF has no parent node\n",
 		  __func__, node);
@@ -594,8 +592,6 @@ int of_graph_parse_endpoint(const struct device_node *node,
 	of_property_read_u32(port_node, "reg", &endpoint->port);
 	of_property_read_u32(node, "reg", &endpoint->id);
 
-	of_node_put(port_node);
-
 	return 0;
 }
 EXPORT_SYMBOL(of_graph_parse_endpoint);
@@ -610,25 +606,22 @@ EXPORT_SYMBOL(of_graph_parse_endpoint);
  */
 struct device_node *of_graph_get_port_by_id(struct device_node *parent, u32 id)
 {
-	struct device_node *node, *port;
+	struct device_node *node __free(device_node) = of_get_child_by_name(parent, "ports");
 
-	node = of_get_child_by_name(parent, "ports");
 	if (node)
 		parent = node;
 
-	for_each_child_of_node(parent, port) {
+	for_each_child_of_node_scoped(parent, port) {
 		u32 port_id = 0;
 
 		if (!of_node_name_eq(port, "port"))
 			continue;
 		of_property_read_u32(port, "reg", &port_id);
 		if (id == port_id)
-			break;
+			return_ptr(port);
 	}
 
-	of_node_put(node);
-
-	return port;
+	return NULL;
 }
 EXPORT_SYMBOL(of_graph_get_port_by_id);
 
@@ -655,15 +648,13 @@ struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
 	 * parent port node.
 	 */
 	if (!prev) {
-		struct device_node *node;
+		struct device_node *node __free(device_node) =
+			of_get_child_by_name(parent, "ports");
 
-		node = of_get_child_by_name(parent, "ports");
 		if (node)
 			parent = node;
 
 		port = of_get_child_by_name(parent, "port");
-		of_node_put(node);
-
 		if (!port) {
 			pr_debug("graph: no port node found in %pOF\n", parent);
 			return NULL;
@@ -1052,15 +1043,13 @@ static int of_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
 					  struct fwnode_endpoint *endpoint)
 {
 	const struct device_node *node = to_of_node(fwnode);
-	struct device_node *port_node = of_get_parent(node);
+	struct device_node *port_node __free(device_node) = of_get_parent(node);
 
 	endpoint->local_fwnode = fwnode;
 
 	of_property_read_u32(port_node, "reg", &endpoint->port);
 	of_property_read_u32(node, "reg", &endpoint->id);
 
-	of_node_put(port_node);
-
 	return 0;
 }
 
@@ -1254,6 +1243,7 @@ DEFINE_SIMPLE_PROP(msi_parent, "msi-parent", "#msi-cells")
 DEFINE_SIMPLE_PROP(post_init_providers, "post-init-providers", NULL)
 DEFINE_SIMPLE_PROP(access_controllers, "access-controllers", "#access-controller-cells")
 DEFINE_SIMPLE_PROP(pses, "pses", "#pse-cells")
+DEFINE_SIMPLE_PROP(power_supplies, "power-supplies", NULL)
 DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
 DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
 
@@ -1313,6 +1303,57 @@ static struct device_node *parse_interrupts(struct device_node *np,
 	return of_irq_parse_one(np, index, &sup_args) ? NULL : sup_args.np;
 }
 
+static struct device_node *parse_interrupt_map(struct device_node *np,
+					       const char *prop_name, int index)
+{
+	const __be32 *imap, *imap_end, *addr;
+	struct of_phandle_args sup_args;
+	u32 addrcells, intcells;
+	int i, imaplen;
+
+	if (!IS_ENABLED(CONFIG_OF_IRQ))
+		return NULL;
+
+	if (strcmp(prop_name, "interrupt-map"))
+		return NULL;
+
+	if (of_property_read_u32(np, "#interrupt-cells", &intcells))
+		return NULL;
+	addrcells = of_bus_n_addr_cells(np);
+
+	imap = of_get_property(np, "interrupt-map", &imaplen);
+	if (!imap || imaplen <= (addrcells + intcells))
+		return NULL;
+	imap_end = imap + imaplen;
+
+	while (imap < imap_end) {
+		addr = imap;
+		imap += addrcells;
+
+		sup_args.np = np;
+		sup_args.args_count = intcells;
+		for (i = 0; i < intcells; i++)
+			sup_args.args[i] = be32_to_cpu(imap[i]);
+		imap += intcells;
+
+		/*
+		 * Upon success, the function of_irq_parse_raw() returns
+		 * interrupt controller DT node pointer in sup_args.np.
+		 */
+		if (of_irq_parse_raw(addr, &sup_args))
+			return NULL;
+
+		if (!index)
+			return sup_args.np;
+
+		of_node_put(sup_args.np);
+		imap += sup_args.args_count + 1;
+		index--;
+	}
+
+	return NULL;
+}
+
 static struct device_node *parse_remote_endpoint(struct device_node *np,
 						 const char *prop_name,
 						 int index)
@@ -1360,8 +1401,10 @@ static const struct supplier_bindings of_supplier_bindings[] = {
 	{ .parse_prop = parse_panel, },
 	{ .parse_prop = parse_msi_parent, },
 	{ .parse_prop = parse_pses, },
+	{ .parse_prop = parse_power_supplies, },
 	{ .parse_prop = parse_gpio_compat, },
 	{ .parse_prop = parse_interrupts, },
+	{ .parse_prop = parse_interrupt_map, },
 	{ .parse_prop = parse_access_controllers, },
 	{ .parse_prop = parse_regulators, },
 	{ .parse_prop = parse_gpio, },

drivers/of/resolver.c

@@ -8,6 +8,7 @@
 
 #define pr_fmt(fmt)	"OF: resolver: " fmt
 
+#include <linux/cleanup.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -74,11 +75,11 @@ static int update_usages_of_a_phandle_reference(struct device_node *overlay,
 {
 	struct device_node *refnode;
 	struct property *prop;
-	char *value, *cur, *end, *node_path, *prop_name, *s;
+	char *value __free(kfree) = kmemdup(prop_fixup->value, prop_fixup->length, GFP_KERNEL);
+	char *cur, *end, *node_path, *prop_name, *s;
 	int offset, len;
 	int err = 0;
 
-	value = kmemdup(prop_fixup->value, prop_fixup->length, GFP_KERNEL);
 	if (!value)
 		return -ENOMEM;
 
@@ -89,23 +90,19 @@ static int update_usages_of_a_phandle_reference(struct device_node *overlay,
 
 		node_path = cur;
 		s = strchr(cur, ':');
-		if (!s) {
-			err = -EINVAL;
-			goto err_fail;
-		}
+		if (!s)
+			return -EINVAL;
 		*s++ = '\0';
 
 		prop_name = s;
 		s = strchr(s, ':');
-		if (!s) {
-			err = -EINVAL;
-			goto err_fail;
-		}
+		if (!s)
+			return -EINVAL;
 		*s++ = '\0';
 
 		err = kstrtoint(s, 10, &offset);
 		if (err)
-			goto err_fail;
+			return err;
 
 		refnode = __of_find_node_by_full_path(of_node_get(overlay), node_path);
 		if (!refnode)
@@ -117,22 +114,16 @@ static int update_usages_of_a_phandle_reference(struct device_node *overlay,
 		}
 		of_node_put(refnode);
 
-		if (!prop) {
-			err = -ENOENT;
-			goto err_fail;
-		}
+		if (!prop)
+			return -ENOENT;
 
-		if (offset < 0 || offset + sizeof(__be32) > prop->length) {
-			err = -EINVAL;
-			goto err_fail;
-		}
+		if (offset < 0 || offset + sizeof(__be32) > prop->length)
+			return -EINVAL;
 
 		*(__be32 *)(prop->value + offset) = cpu_to_be32(phandle);
 	}
 
-err_fail:
-	kfree(value);
-	return err;
+	return 0;
 }
 
 /* compare nodes taking into account that 'name' strips out the @ part */

drivers/of/unittest.c

@@ -795,15 +795,11 @@ static void __init of_unittest_property_copy(void)
 
 	new = __of_prop_dup(&p1, GFP_KERNEL);
 	unittest(new && propcmp(&p1, new), "empty property didn't copy correctly\n");
-	kfree(new->value);
-	kfree(new->name);
-	kfree(new);
+	__of_prop_free(new);
 
 	new = __of_prop_dup(&p2, GFP_KERNEL);
 	unittest(new && propcmp(&p2, new), "non-empty property didn't copy correctly\n");
-	kfree(new->value);
-	kfree(new->name);
-	kfree(new);
+	__of_prop_free(new);
 #endif
 }
 
@@ -3718,9 +3714,7 @@ static __init void of_unittest_overlay_high_level(void)
 				goto err_unlock;
 			}
 			if (__of_add_property(of_symbols, new_prop)) {
-				kfree(new_prop->name);
-				kfree(new_prop->value);
-				kfree(new_prop);
+				__of_prop_free(new_prop);
 				/* "name" auto-generated by unflatten */
 				if (!strcmp(prop->name, "name"))
 					continue;

include/linux/of_reserved_mem.h

@@ -11,7 +11,6 @@ struct reserved_mem_ops;
 struct reserved_mem {
 	const char			*name;
 	unsigned long			fdt_node;
-	unsigned long			phandle;
 	const struct reserved_mem_ops	*ops;
 	phys_addr_t			base;
 	phys_addr_t			size;