dt-bindings: Add missing array size constraints

DT properties which can have multiple entries need to specify what the entries are and define how many entries there can be. In the case of only a single entry, just 'maxItems: 1' is sufficient. Add the missing entry constraints. These were found with a modified meta-schema. Unfortunately, there are a few cases where the size constraints are not defined such as common bindings, so the meta-schema can't be part of the normal checks. Cc: Jens Axboe <axboe@kernel.dk> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <maz@kernel.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Sebastian Reichel <sre@kernel.org> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for-iio Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Suman Anna <s-anna@ti.com> Acked-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210104230253.2805217-1-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

dt-bindings: Add missing array size constraints
DT properties which can have multiple entries need to specify what the entries are and define how many entries there can be. In the case of only a single entry, just 'maxItems: 1' is sufficient. Add the missing entry constraints. These were found with a modified meta-schema. Unfortunately, there are a few cases where the size constraints are not defined such as common bindings, so the meta-schema can't be part of the normal checks. Cc: Jens Axboe <axboe@kernel.dk> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <maz@kernel.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Sebastian Reichel <sre@kernel.org> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for-iio Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Suman Anna <s-anna@ti.com> Acked-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210104230253.2805217-1-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>
0499220d · Rob Herring · ca880a15 · 0499220d · 0499220d · 0499220d
Commit 0499220d authored Jan 04, 2021 by Rob Herring
74 changed files
--- a/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml
+++ b/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml
--- a/Documentation/devicetree/bindings/ata/sata_highbank.yaml
+++ b/Documentation/devicetree/bindings/ata/sata_highbank.yaml
@@ -61,6 +61,7 @@ properties:
    maxItems: 8

  calxeda,sgpio-gpio:
+    maxItems: 3
    description: |
      phandle-gpio bank, bit offset, and default on or off, which indicates
      that the driver supports SGPIO indicator lights using the indicated

--- a/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
@@ -22,6 +22,7 @@ properties:
    const: canaan,k210-clk

  clocks:
+    maxItems: 1
    description:
      Phandle of the SoC 26MHz fixed-rate oscillator clock.


--- a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
@@ -60,6 +60,7 @@ properties:
      Phandle of the I2C controller used for DDC EDID probing

  hpd-gpios:
+    maxItems: 1
    description: >
      The GPIO pin for the HDMI hotplug detect (if it doesn't appear
      as an interrupt/status bit in the HDMI controller itself)

--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
@@ -37,6 +37,7 @@ properties:
      Phandle of the I2C controller used for DDC EDID probing

  hpd-gpios:
+    maxItems: 1
    description: >
      The GPIO pin for the HDMI hotplug detect (if it doesn't appear
      as an interrupt/status bit in the HDMI controller itself)

--- a/Documentation/devicetree/bindings/display/panel/jdi,lt070me05000.yaml
+++ b/Documentation/devicetree/bindings/display/panel/jdi,lt070me05000.yaml
@@ -30,6 +30,7 @@ properties:
      power supply for LCM (1.8V)

  dcdc-en-gpios:
+    maxItems: 1
    description: |
      phandle of the gpio for power ic line
      Power IC supply enable, High active

--- a/Documentation/devicetree/bindings/display/panel/mantix,mlaf057we51-x.yaml
+++ b/Documentation/devicetree/bindings/display/panel/mantix,mlaf057we51-x.yaml
@@ -37,7 +37,8 @@ properties:

  reset-gpios: true

-  'mantix,tp-rstn-gpios':
+  mantix,tp-rstn-gpios:
+    maxItems: 1
    description: second reset line that triggers DSI config load

  backlight: true

--- a/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
@@ -30,6 +30,7 @@ properties:
      panel. The novatek,nt36672a compatible shall always be provided as a fallback.

  reset-gpios:
+    maxItems: 1
    description: phandle of gpio for reset line - This should be 8mA, gpio
      can be configured using mux, pinctrl, pinctrl-names (active high)


--- a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
+++ b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
@@ -21,7 +21,7 @@ properties:
      - fsl,imx8mp-dsp

  reg:
-    description: Should contain register location and length
+    maxItems: 1

  clocks:
    items:

--- a/Documentation/devicetree/bindings/eeprom/at25.yaml
+++ b/Documentation/devicetree/bindings/eeprom/at25.yaml
@@ -39,8 +39,7 @@ properties:
          - const: atmel,at25

  reg:
-    description:
-      Chip select number.
+    maxItems: 1

  spi-max-frequency: true


--- a/Documentation/devicetree/bindings/extcon/extcon-ptn5150.yaml
+++ b/Documentation/devicetree/bindings/extcon/extcon-ptn5150.yaml
@@ -19,6 +19,7 @@ properties:
    const: nxp,ptn5150

  int-gpios:
+    maxItems: 1
    deprecated: true
    description:
      GPIO pin (input) connected to the PTN5150's INTB pin.
@@ -31,6 +32,7 @@ properties:
    maxItems: 1

  vbus-gpios:
+    maxItems: 1
    description:
      GPIO pin (output) used to control VBUS. If skipped, no such control
      takes place.

--- a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
@@ -81,6 +81,7 @@ properties:
    const: 2

  reset-gpios:
+    maxItems: 1
    description:
      GPIO specification for the RESET input. This is an active low signal to
      the PCA953x.  Not valid for Maxim MAX732x devices.

--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
@@ -40,6 +40,7 @@ properties:
      ADC reference voltage supply

  adi,sync-in-gpios:
+    maxItems: 1
    description:
      Enables synchronization of multiple devices that require simultaneous
      sampling. A pulse is always required if the configuration is changed
@@ -76,6 +77,7 @@ patternProperties:

    properties:
      reg:
+        maxItems: 1
        description: |
          The channel number.


--- a/Documentation/devicetree/bindings/iio/adc/aspeed,ast2400-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/aspeed,ast2400-adc.yaml
@@ -23,6 +23,7 @@ properties:
    maxItems: 1

  clocks:
+    maxItems: 1
    description:
      Input clock used to derive the sample clock. Expected to be the
      SoC's APB clock.

--- a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
@@ -20,7 +20,7 @@ properties:
    description: Power supply for the reference voltage

  reg:
-    description: spi chipselect number according to the usual spi bindings
+    maxItems: 1

  spi-max-frequency:
    description: maximal spi bus frequency supported

--- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
@@ -68,6 +68,7 @@ patternProperties:

    properties:
      reg:
+        maxItems: 1
        description: |
          ADC channel number.
          See include/dt-bindings/iio/qcom,spmi-vadc.h

--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml
@@ -41,6 +41,8 @@ properties:
    maxItems: 2

  clocks:
+    minItems: 1
+    maxItems: 2
    description: |
      Core can use up to two clocks, depending on part used:
        - "adc" clock: for the analog circuitry, common to all ADCs.

--- a/Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml
+++ b/Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml
@@ -47,6 +47,7 @@ properties:
    description: an optional 3x3 mounting rotation matrix.

  reset-gpios:
+    maxItems: 1
    description: |
      an optional pin needed for AK09911 to set the reset state. This should
      be usually active low

--- a/Documentation/devicetree/bindings/iio/potentiometer/adi,ad5272.yaml
+++ b/Documentation/devicetree/bindings/iio/potentiometer/adi,ad5272.yaml
@@ -25,6 +25,7 @@ properties:
    maxItems: 1

  reset-gpios:
+    maxItems: 1
    description:
      Active low signal to the AD5272 RESET input.


--- a/Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml
@@ -29,6 +29,7 @@ properties:
    description: touchscreen can be used as a wakeup source.

  reset-gpios:
+    maxItems: 1
    description: reset gpio the chip is connected to.

  vcc33-supply:

--- a/Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.yaml
@@ -31,7 +31,7 @@ properties:
      The 1st cell is hw interrupt number, the 2nd cell is channel index.

  clocks:
-    description: ipg clock.
+    maxItems: 1

  clock-names:
    const: ipg

--- a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
@@ -36,6 +36,8 @@ properties:
      Reference to a phandle of a hardware spinlock provider node.

  interrupts:
+    minItems: 1
+    maxItems: 96
    description:
      Interrupts references to primary interrupt controller


--- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
@@ -53,6 +53,7 @@ properties:
    maxItems: 1

  memory-region:
+    maxItems: 1
    description:
      CMA pool to use for buffers allocation instead of the default
      CMA pool.

--- a/Documentation/devicetree/bindings/media/i2c/imx219.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/imx219.yaml
@@ -40,6 +40,7 @@ properties:
      Digital core voltage supply, 1.2 volts

  reset-gpios:
+    maxItems: 1
    description: |-
      Reference to the GPIO connected to the xclr pin, if any.
      Must be released (set high) after all supplies are applied.

--- a/Documentation/devicetree/bindings/memory-controllers/exynos-srom.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/exynos-srom.yaml
@@ -28,6 +28,8 @@ properties:
    const: 1

  ranges:
+    minItems: 1
+    maxItems: 4
    description: |
      Reflects the memory layout with four integer values per bank. Format:
      <bank-number> 0 <parent address of bank> <size>

--- a/Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml
+++ b/Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml
@@ -15,6 +15,7 @@ properties:
    const: "fsl,dpaa2-console"

  reg:
+    maxItems: 1
    description: A standard property. Specifies the region where the MCFBA
                (MC firmware base address) register can be found.


--- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
+++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
@@ -40,6 +40,7 @@ properties:
      There is no card detection available; polling must be used.

  cd-gpios:
+    maxItems: 1
    description:
      The card detection will be done using the GPIO provided.

@@ -104,6 +105,7 @@ properties:
      line. Not used in combination with eMMC or SDIO.

  wp-gpios:
+    maxItems: 1
    description:
      GPIO to use for the write-protect detection.


--- a/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml
+++ b/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml
@@ -66,6 +66,7 @@ properties:
  dma-coherent: true

  clocks:
+    maxItems: 1
    description: CPSW2G NUSS functional clock

  clock-names:

--- a/Documentation/devicetree/bindings/net/ti,k3-am654-cpts.yaml
+++ b/Documentation/devicetree/bindings/net/ti,k3-am654-cpts.yaml
@@ -59,6 +59,7 @@ properties:
      - const: cpts

  clocks:
+    maxItems: 1
    description: CPTS reference clock

  clock-names:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml
@@ -51,9 +51,11 @@ properties:
      - const: usb2_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
@@ -50,9 +50,11 @@ properties:
      - const: usb1_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml
@@ -50,9 +50,11 @@ properties:
      - const: usb3_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml
@@ -45,9 +45,11 @@ properties:
      - const: usb1_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml
@@ -54,9 +54,11 @@ properties:
      - const: usb2_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml
@@ -50,9 +50,11 @@ properties:
      - const: usb1_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml
@@ -56,9 +56,11 @@ properties:
      - const: usb2_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml
@@ -62,9 +62,11 @@ properties:
      - const: usb3_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml
@@ -56,9 +56,11 @@ properties:
      - const: usb2_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml
@@ -42,9 +42,11 @@ properties:
    const: usb0_reset

  usb0_id_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
+    maxItems: 1
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:

--- a/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml
@@ -22,7 +22,8 @@ properties:

  clocks:
    anyOf:
-      - description: Main PHY Clock
+      - maxItems: 1
+        description: Main PHY Clock

      - items:
          - description: Main PHY clock
@@ -39,18 +40,14 @@ properties:
          - const: hsic_480M

  resets:
-    anyOf:
-      - description: Normal USB PHY reset
-
-      - items:
+    minItems: 1
+    items:
      - description: Normal USB PHY reset
      - description: HSIC Reset

  reset-names:
-    oneOf:
-      - const: phy
-
-      - items:
+    minItems: 1
+    items:
      - const: phy
      - const: hsic


--- a/Documentation/devicetree/bindings/phy/socionext,uniphier-ahci-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/socionext,uniphier-ahci-phy.yaml
@@ -20,7 +20,7 @@ properties:
      - socionext,uniphier-pxs3-ahci-phy

  reg:
-    description: PHY register region (offset and length)
+    maxItems: 1

  "#phy-cells":
    const: 0

--- a/Documentation/devicetree/bindings/phy/socionext,uniphier-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/socionext,uniphier-pcie-phy.yaml
@@ -21,7 +21,7 @@ properties:
      - socionext,uniphier-pxs3-pcie-phy

  reg:
-    description: PHY register region (offset and length)
+    maxItems: 1

  "#phy-cells":
    const: 0

--- a/Documentation/devicetree/bindings/phy/socionext,uniphier-usb3hs-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/socionext,uniphier-usb3hs-phy.yaml
@@ -24,7 +24,7 @@ properties:
      - socionext,uniphier-pxs3-usb3-hsphy

  reg:
-    description: PHY register region (offset and length)
+    maxItems: 1

  "#phy-cells":
    const: 0

--- a/Documentation/devicetree/bindings/phy/socionext,uniphier-usb3ss-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/socionext,uniphier-usb3ss-phy.yaml
@@ -25,7 +25,7 @@ properties:
      - socionext,uniphier-pxs3-usb3-ssphy

  reg:
-    description: PHY register region (offset and length)
+    maxItems: 1

  "#phy-cells":
    const: 0

--- a/Documentation/devicetree/bindings/phy/ti,phy-gmii-sel.yaml
+++ b/Documentation/devicetree/bindings/phy/ti,phy-gmii-sel.yaml
@@ -55,7 +55,7 @@ properties:
      - ti,am654-phy-gmii-sel

  reg:
-    description: Address and length of the register set for the device
+    maxItems: 1

  '#phy-cells': true


--- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
@@ -23,8 +23,7 @@ properties:
  compatible:
    const: aspeed,ast2400-pinctrl
  reg:
-    description: |
-      A hint for the memory regions associated with the pin-controller
+    maxItems: 2

 patternProperties:
  '^.*$':

--- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml
@@ -24,8 +24,8 @@ properties:
  compatible:
    const: aspeed,ast2500-pinctrl
  reg:
-    description: |
-      A hint for the memory regions associated with the pin-controller
+    maxItems: 2
+
  aspeed,external-nodes:
    minItems: 2
    maxItems: 2

--- a/Documentation/devicetree/bindings/power/supply/bq25980.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq25980.yaml
@@ -70,6 +70,7 @@ properties:
    description: Enables bypass mode at boot time

  interrupts:
+    maxItems: 1
    description: |
      Indicates that the device state has changed.


--- a/Documentation/devicetree/bindings/remoteproc/ingenic,vpu.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/ingenic,vpu.yaml
@@ -44,7 +44,7 @@ properties:
      - const: vpu

  interrupts:
-    description: VPU hardware interrupt
+    maxItems: 1

 required:
  - compatible

--- a/Documentation/devicetree/bindings/remoteproc/ti,omap-remoteproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/ti,omap-remoteproc.yaml
@@ -70,10 +70,13 @@ properties:
      the firmware image.

  clocks:
+    maxItems: 1
    description: |
      Main functional clock for the remote processor

  resets:
+    minItems: 1
+    maxItems: 2
    description: |
      Reset handles for the remote processor


--- a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
+++ b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
@@ -63,6 +63,7 @@ properties:
  next-level-cache: true

  memory-region:
+    maxItems: 1
    description: |
      The reference to the reserved-memory for the L2 Loosely Integrated Memory region.
      The reserved memory node should be defined as per the bindings in reserved-memory.txt.

--- a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
@@ -81,6 +81,8 @@ properties:
    maxItems: 1

  dmas:
+    minItems: 2
+    maxItems: 4
    description:
      Must contain a list of pairs of references to DMA specifiers, one for
      transmission, and one for reception.

--- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -120,6 +120,8 @@ properties:
    maxItems: 1

  dmas:
+    minItems: 2
+    maxItems: 4
    description:
      Must contain a list of pairs of references to DMA specifiers, one for
      transmission, and one for reception.

--- a/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scifa.yaml
@@ -55,6 +55,8 @@ properties:
    maxItems: 1

  dmas:
+    minItems: 2
+    maxItems: 4
    description:
      Must contain a list of pairs of references to DMA specifiers, one for
      transmission, and one for reception.

--- a/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scifb.yaml
@@ -55,6 +55,8 @@ properties:
    maxItems: 1

  dmas:
+    minItems: 2
+    maxItems: 4
    description:
      Must contain a list of pairs of references to DMA specifiers, one for
      transmission, and one for reception.

--- a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml
@@ -88,6 +88,7 @@ properties:
    description: Phandle to the codec analog controls in the PRCM

  allwinner,pa-gpios:
+    maxItems: 1
    description: GPIO to enable the external amplifier

 required:

--- a/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml
+++ b/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml
@@ -55,6 +55,7 @@ patternProperties:
        maxItems: 1

      reg:
+        maxItems: 1
        description: dai link address.

      cpu:

--- a/Documentation/devicetree/bindings/sound/samsung,aries-wm8994.yaml
+++ b/Documentation/devicetree/bindings/sound/samsung,aries-wm8994.yaml
@@ -62,12 +62,15 @@ properties:
    description: Supply for the micbias on the headset mic

  earpath-sel-gpios:
+    maxItems: 1
    description: GPIO for switching between tv-out and mic paths

  headset-detect-gpios:
+    maxItems: 1
    description: GPIO for detection of headset insertion

  headset-key-gpios:
+    maxItems: 1
    description: GPIO for detection of headset key press

  io-channels:

--- a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
+++ b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
@@ -53,9 +53,11 @@ properties:
    description: Supply for the micbias on the Sub microphone

  fm-sel-gpios:
+    maxItems: 1
    description: GPIO pin for FM selection

  lineout-sel-gpios:
+    maxItems: 1
    description: GPIO pin for line out selection

 required:

--- a/Documentation/devicetree/bindings/sound/tas2562.yaml
+++ b/Documentation/devicetree/bindings/sound/tas2562.yaml
@@ -36,10 +36,12 @@ properties:
       I2C address of the device can be one of these 0x4c, 0x4d, 0x4e or 0x4f

  shut-down-gpios:
+    maxItems: 1
    description: GPIO used to control the state of the device.
    deprecated: true

  shutdown-gpios:
+    maxItems: 1
    description: GPIO used to control the state of the device.

  interrupts:

--- a/Documentation/devicetree/bindings/sound/tas2770.yaml
+++ b/Documentation/devicetree/bindings/sound/tas2770.yaml
@@ -27,9 +27,11 @@ properties:
       I2C address of the device can be between 0x41 to 0x48.

  reset-gpio:
+    maxItems: 1
    description: GPIO used to reset the device.

  shutdown-gpios:
+    maxItems: 1
    description: GPIO used to control the state of the device.

  interrupts:

--- a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
+++ b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
@@ -35,6 +35,7 @@ properties:
      I2C addresss of the device can be one of these 0x4c, 0x4d, 0x4e or 0x4f

  reset-gpios:
+    maxItems: 1
    description: |
      GPIO used for hardware reset.


--- a/Documentation/devicetree/bindings/spi/renesas,rspi.yaml
+++ b/Documentation/devicetree/bindings/spi/renesas,rspi.yaml
@@ -68,6 +68,8 @@ properties:
    maxItems: 1

  dmas:
+    minItems: 2
+    maxItems: 4
    description:
      Must contain a list of pairs of references to DMA specifiers, one for
      transmission, and one for reception.

--- a/Documentation/devicetree/bindings/sram/sram.yaml
+++ b/Documentation/devicetree/bindings/sram/sram.yaml
@@ -35,6 +35,7 @@ properties:
    maxItems: 1

  clocks:
+    maxItems: 1
    description:
      A list of phandle and clock specifier pair that controls the single
      SRAM clock.
@@ -46,6 +47,7 @@ properties:
    const: 1

  ranges:
+    maxItems: 1
    description:
      Should translate from local addresses within the sram to bus addresses.


--- a/Documentation/devicetree/bindings/timer/allwinner,sun4i-a10-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/allwinner,sun4i-a10-timer.yaml
@@ -22,6 +22,8 @@ properties:
    maxItems: 1

  interrupts:
+    minItems: 2
+    maxItems: 6
    description:
      List of timers interrupts


--- a/Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/intel,ixp4xx-timer.yaml
@@ -18,7 +18,7 @@ properties:
      - const: intel,ixp4xx-timer

  reg:
-    description: Should contain registers location and length
+    maxItems: 1

  interrupts:
    minItems: 1

--- a/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.yaml
+++ b/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.yaml
@@ -39,7 +39,7 @@ properties:
    maxItems: 1

  phys:
-    description: PHY specifier for the OTG PHY
+    maxItems: 1

  phy-names:
    const: usb

--- a/Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml
+++ b/Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml
@@ -22,6 +22,8 @@ properties:
    description: Interrupt for signals mirrored to out-gpios.

  in-gpios:
+    minItems: 1
+    maxItems: 2
    description: Array of one or two GPIO pins used for input signals.

  brcm,in-functions:
@@ -33,6 +35,7 @@ properties:
    description: Array of enable and mask pairs, one per gpio in-gpios.

  out-gpios:
+    maxItems: 1
    description: Array of one GPIO pin used for output signals.

  brcm,out-functions:

--- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
@@ -83,7 +83,7 @@ properties:
      Phandle of a companion.

  phys:
-    description: PHY specifier for the USB PHY
+    maxItems: 1

  phy-names:
    const: usb

--- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
@@ -71,7 +71,7 @@ properties:
      Overrides the detected port count

  phys:
-    description: PHY specifier for the USB PHY
+    maxItems: 1

  phy-names:
    const: usb

--- a/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
+++ b/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
@@ -40,7 +40,7 @@ properties:
      - const: mc

  phys:
-    description: PHY specifier for the USB PHY
+    maxItems: 1

  usb-role-switch:
    type: boolean

--- a/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
+++ b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
@@ -68,6 +68,7 @@ properties:
      Integer to use BUSWAIT register.

  renesas,enable-gpio:
+    maxItems: 1
    description: |
      gpio specifier to check GPIO determining if USB function should be
      enabled.

--- a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
+++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
@@ -15,13 +15,14 @@ properties:
      - const: ti,j721e-usb

  reg:
-    description: module registers
+    maxItems: 1

  power-domains:
    description:
      PM domain provider node and an args specifier containing
      the USB device id value. See,
      Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+    maxItems: 1

  clocks:
    description: Clock phandles to usb2_refclk and lpm_clk

--- a/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
@@ -43,12 +43,14 @@ properties:
    maxItems: 2

  power-domains:
+    maxItems: 1
    description: Should contain a phandle to a PM domain provider node
      and an args specifier containing the USB device id
      value. This property is as per the binding,
      Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt

  phys:
+    maxItems: 1
    description:
      PHY specifier for the USB3.0 PHY. Some SoCs need the USB3.0 PHY
      to be turned on before the controller.