On Wed, May 20, 2026 at 06:24:20PM +0530, Arpit Saini wrote: > Hi Dmitry, > > On 5/18/2026 9:53 PM, Dmitry Baryshkov wrote: > > On Mon, May 18, 2026 at 04:34:12PM +0530, Arpit Saini wrote: > > > ILI7807S is a DSI display controller used to drive MIPI-DSI panels. > > > The DLC DLC0697 1080x1920 LCD panel is based on this controller. > > > > > > The panel requires a reset GPIO, backlight enable GPIO, I/O voltage > > > supply (vddi), positive LCD bias supply (avdd) and negative LCD bias > > > supply (avee). The panel operates in video burst mode with four data > > > lanes using RGB888 pixel format. > > > > > > Signed-off-by: Arpit Saini <[email protected]> > > > --- > > > .../bindings/display/panel/ilitek,ili7807s.yaml | 80 > > > ++++++++++++++++++++++ > > > MAINTAINERS | 7 ++ > > > 2 files changed, 87 insertions(+) > > > > > > diff --git > > > a/Documentation/devicetree/bindings/display/panel/ilitek,ili7807s.yaml > > > b/Documentation/devicetree/bindings/display/panel/ilitek,ili7807s.yaml > > > new file mode 100644 > > > index 000000000000..93c511d03c00 > > > --- /dev/null > > > +++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili7807s.yaml > > > @@ -0,0 +1,80 @@ > > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > > > +%YAML 1.2 > > > +--- > > > +$id: http://devicetree.org/schemas/display/panel/ilitek,ili7807s.yaml# > > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > > + > > > +title: Ilitek ILI7807S-based DSI panels > > > + > > > +maintainers: > > > + - Arpit Saini <[email protected]> > > > + > > > +allOf: > > > + - $ref: panel-common.yaml# > > > + > > > +properties: > > > + compatible: > > > + items: > > > + - enum: > > > + - dlc,dlc0697 > > > + - const: ilitek,ili7807s > > > + > > > + reg: > > > + maxItems: 1 > > > + description: DSI virtual channel > > > + > > > + reset-gpios: true > > > + > > > + backlight-en-gpios: > > > + description: Backlight enable GPIO (active high) > > > > Is this actual GPIO or the GPIO-controlled supply? > > > Addressed here > https://lore.kernel.org/all/[email protected]/
It's not. Or, from your description, I can assume that it is a PWM controller external to the panel. Please model it accordingly. I assume there is no 'backlight-en' pin on the panel connector. -- With best wishes Dmitry
