[PATCH v2 1/3] dt-bindings: display: add bindings for MIPI DBI compatible SPI panels
Noralf Trønnes
noralf at tronnes.org
Tue Jan 25 17:56:58 UTC 2022
Add binding for MIPI DBI compatible SPI panels.
v2:
- Fix path for panel-common.yaml
- Use unevaluatedProperties
- Drop properties which are in the allOf section
- Drop model property (Rob)
Signed-off-by: Noralf Trønnes <noralf at tronnes.org>
---
.../display/panel/panel-mipi-dbi-spi.yaml | 59 +++++++++++++++++++
1 file changed, 59 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
diff --git a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
new file mode 100644
index 000000000000..b7cbeea0f8aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/panel-mipi-dbi-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MIPI DBI SPI Panels Device Tree Bindings
+
+maintainers:
+ - Noralf Trønnes <noralf at tronnes.org>
+
+description:
+ This binding is for display panels using a MIPI DBI controller
+ in SPI mode.
+
+allOf:
+ - $ref: panel-common.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ const: panel-mipi-dbi-spi
+
+ write-only:
+ type: boolean
+ description:
+ Controller is not readable (ie. MISO is not wired up).
+
+ dc-gpios:
+ maxItems: 1
+ description: |
+ Controller data/command selection (D/CX) in 4-line SPI mode.
+ If not set, the controller is in 3-line SPI mode.
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ display at 0{
+ compatible = "panel-mipi-dbi-spi";
+ reg = <0>;
+ spi-max-frequency = <40000000>;
+ dc-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
+ write-only;
+ };
+ };
+
+...
--
2.33.0
More information about the dri-devel
mailing list