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@xxxxxxxxxxx>
---
Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list@xxxxxxxxxxxx>
Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
Cc: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
Cc: Liam Girdwood <lgirdwood@xxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-renesas-soc@xxxxxxxxxxxxxxx
Cc: linux-rpi-kernel@xxxxxxxxxxxxxxxxxxx
---
.../raspberrypi,7inch-touchscreen-panel-regulator.yaml | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml b/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
index 41678400e63f..18944d39d08f 100644
--- a/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml
@@ -12,14 +12,17 @@ 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.
+ and control the backlight. The V2 supports 5" and 7" panels and also
+ offers PWM backlight control.
allOf:
- $ref: regulator.yaml#
properties:
compatible:
- const: raspberrypi,7inch-touchscreen-panel-regulator
+ enum:
+ - raspberrypi,7inch-touchscreen-panel-regulator
+ - raspberrypi,touchscreen-panel-regulator-v2
reg:
maxItems: 1
--
2.47.2
