display/panel/panel-common.yaml

1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/panel/panel-common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Thierry Reding <thierry.reding@gmail.com>
11   - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
18   When referenced from panel device tree bindings the properties defined in this
19   document are defined as follows. The panel device tree bindings are
24   width-mm:
29   height-mm:
36       The label property specifies a symbolic name for the panel as a
43       non-descriptive information. For instance an LCD panel in a system that
44       contains a single panel shall not be labelled "LCD" if that name is not
55   panel-timing:
58       require specific display timings. The panel-timing subnode expresses those
60     $ref: panel-timing.yaml#
62   display-timings:
65       The display-timings bindings supports specifying several timings and
67     $ref: display-timings.yaml#
73   ddc-i2c-bus:
76       Some panels expose EDID information through an I2C-compatible
77       bus such as DDC2 or E-DDC. For such panels the ddc-i2c-bus contains a
80   no-hpd:
83       This panel is supposed to communicate that it's ready via HPD
85       hardcode the max delay from the panel spec when powering up the panel.
87   hpd-gpios:
96   # and timing of those control signals are device-specific and left for panel
100   enable-gpios:
103       Specifier for a GPIO connected to the panel enable control signal. The
104       enable signal is active high and enables operation of the panel. This
110       Note that the enable signal control panel operation only and must not be
113   reset-gpios:
116       Specifier for a GPIO connected to the panel reset control signal.
117       The reset signal is active low and resets the panel internal logic
121   te-gpios:
129   power-supply:
132       more than one power supply with panel-specific constraints governing the
134       supply is sufficient, either because the panel has a single power rail, or
136       the power-supply property specifies the supply powering the panel as a
154   width-mm: [ height-mm ]
155   height-mm: [ width-mm ]