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regulator: dt-bindings: rpi-panel: Add regulator for 7" Raspberry Pi 720x1280

Document regulator compatible string for the 7" Raspberry Pi 720x1280 DSI
panel based on ili9881. This is the Raspberry Pi DSI Panel V2. The newer
Raspberry Pi 5" and 7" panels have a slightly different register map to
the original one and offers PWM backlight control.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://patch.msgid.link/20250609000748.1665219-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Mark Brown <broonie@kernel.org>

authored by

Marek Vasut and committed by
Mark Brown 6d09c6e4 548d770c

+5 -2
+5 -2
Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
··· 12 12 description: | 13 13 The RaspberryPi 7" display has an ATTINY88-based regulator/backlight 14 14 controller on the PCB, which is used to turn the display unit on/off 15 - and control the backlight. 15 + and control the backlight. The V2 supports 5" and 7" panels and also 16 + offers PWM backlight control. 16 17 17 18 allOf: 18 19 - $ref: regulator.yaml# 19 20 20 21 properties: 21 22 compatible: 22 - const: raspberrypi,7inch-touchscreen-panel-regulator 23 + enum: 24 + - raspberrypi,7inch-touchscreen-panel-regulator 25 + - raspberrypi,touchscreen-panel-regulator-v2 23 26 24 27 reg: 25 28 maxItems: 1