Unverified Commit 5bad1648 authored by Marek Vasut's avatar Marek Vasut Committed by Mark Brown
Browse files

regulator: dt-bindings: rpi-panel: Split 7" Raspberry Pi 720x1280 v2 binding 



The 5" and 7" Raspberry Pi 720x1280 Display 2 MCU is a bit more
complex than the original Display 1 ATTINY88 and the binding is
also a bit more demanding. Split the binding into separate file
and fill in required gpio-controller, #gpio-cells and #pwm-cells
which must be present for the V2 MCU. Include mention of the 5"
panel in the description of Display 2, as the 5" panel uses the
same MCU.

Fixes: 6d09c6e4 ("regulator: dt-bindings: rpi-panel: Add regulator for 7" Raspberry Pi 720x1280")
Signed-off-by: default avatarMarek Vasut <marek.vasut+renesas@mailbox.org>
Acked-by: default avatarConor Dooley <conor.dooley@microchip.com>
Message-ID: <20250905191637.147141-1-marek.vasut+renesas@mailbox.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 92b9c2b7

Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator-v2.yaml

0 → 100644
+61 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/regulator/raspberrypi,7inch-touchscreen-panel-regulator-v2.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: RaspberryPi 5" and 7" display V2 MCU-based regulator/backlight controller



maintainers:

  - Marek Vasut <marek.vasut+renesas@mailbox.org>



description: |

  The RaspberryPi 5" and 7" display 2 has an MCU-based regulator, PWM

  backlight and GPIO controller on the PCB, which is used to turn the

  display unit on/off and control the backlight.



allOf:

  - $ref: regulator.yaml#



properties:

  compatible:

    const: raspberrypi,touchscreen-panel-regulator-v2



  reg:

    maxItems: 1



  gpio-controller: true

  "#gpio-cells":

    const: 2

    description:

      The first cell is the pin number, and the second cell is used to

      specify the gpio polarity (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW).



  "#pwm-cells":

    const: 3

    description: See ../../pwm/pwm.yaml for description of the cell formats.



additionalProperties: false



required:

  - compatible

  - reg

  - gpio-controller

  - "#gpio-cells"

  - "#pwm-cells"



examples:

  - |

    i2c {

      #address-cells = <1>;

      #size-cells = <0>;

      regulator@45 {

        compatible = "raspberrypi,touchscreen-panel-regulator-v2";

        reg = <0x45>;

        gpio-controller;

        #gpio-cells = <2>;

        #pwm-cells = <3>;

      };

    };



...

Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml

+2 −5
Original line number Diff line number Diff line
@@ -12,17 +12,14 @@ maintainers: 
description: |

  The RaspberryPi 7" display has an ATTINY88-based regulator/backlight

  controller on the PCB, which is used to turn the display unit on/off

  and control the backlight. The V2 supports 5" and 7" panels and also

  offers PWM backlight control.

  and control the backlight.



allOf:

  - $ref: regulator.yaml#



properties:

  compatible:

    enum:

      - raspberrypi,7inch-touchscreen-panel-regulator

      - raspberrypi,touchscreen-panel-regulator-v2

    const: raspberrypi,7inch-touchscreen-panel-regulator



  reg:

    maxItems: 1