Re: [PATCH 1/2] dt-bindings: display: bridge: Add documentation for LT8912
On Sun, Jan 24, 2021 at 04:08:34PM +0100, Adrien Grassein wrote:
> Lontium LT8912 is a DSI to HDMI bridge.
>
> Signed-off-by: Adrien Grassein
> ---
> .../display/bridge/lontium,lt8912.yaml| 92 +++
> MAINTAINERS | 5 +
> 2 files changed, 97 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
>
> diff --git
> a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
> b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
> new file mode 100644
> index ..ed1a6ddaab2f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
> @@ -0,0 +1,92 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Lontium LT8912 MIPI to HDMI Bridge
> +
> +maintainers:
> + - Adrien Grassein
> +
> +description: |
> + The LT8912 is a bridge device which convert DSI to HDMI
> +
> +properties:
> + compatible:
> +enum:
> + - lontium,lt8912
> +
> + reg:
> +maxItems: 1
> +
> + ddc-i2c-bus:
This belongs in an hdmi-connector node.
> +maxItems: 1
> +description: i2c bus used to read EDID of the connected display.
> +
> + dsi-lanes:
> +maxItems: 1
> +description: dsi lanes count interconnected with lt8912.
'data-lanes' in the graph is the standard way to do this.
You'll need video-interfaces.yaml which is pending in the media tree.
> +
> + reset-gpios:
> +maxItems: 1
> +description: GPIO connected to active high RESET pin.
> +
> + ports:
> +$ref: /schemas/graph.yaml#/properties/ports
> +
> +properties:
> + port@0:
> +$ref: /schemas/graph.yaml#/properties/port
> +description:
> + Primary MIPI port-1 for MIPI input
You're going to need a port for the connector.
> +
> +required:
> + - port@0
> +
> +required:
> + - compatible
> + - ddc-i2c-bus
> + - dsi-lanes
> + - reg
> + - reset-gpios
> + - ports
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> +#include
> +
> +i2c4 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + hdmi-bridge@48 {
> +compatible = "lontium,lt8912";
> +reg = <0x48>;
> +reset-gpios = < 0 GPIO_ACTIVE_LOW>;
> +dsi-lanes = <4>;
> +ddc-i2c-bus = <_i2c_bus>;
> +
> +ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> +reg = <0>;
> +
> +hdmi_out_in: endpoint {
> + remote-endpoint = <_dsi_out>;
> +};
> + };
> +};
> + };
> +};
> +
> +ddc_i2c_bus: i2c5 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +};
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 5aa18cbfb883..01e7e356bfac 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10472,6 +10472,11 @@ S: Maintained
> T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git
> F: drivers/hid/hid-lg-g15.c
>
> +LONTIUM LT8912 MIPI TO HDMI BRIDGE
> +M: Adrien Grassein
> +S: Maintained
> +F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
> +
> LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
> M: Sathya Prakash
> M: Sreekanth Reddy
> --
> 2.25.1
>
___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
[PATCH 1/2] dt-bindings: display: bridge: Add documentation for LT8912
Lontium LT8912 is a DSI to HDMI bridge.
Signed-off-by: Adrien Grassein
---
.../display/bridge/lontium,lt8912.yaml| 92 +++
MAINTAINERS | 5 +
2 files changed, 97 insertions(+)
create mode 100644
Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
diff --git
a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
new file mode 100644
index ..ed1a6ddaab2f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lontium LT8912 MIPI to HDMI Bridge
+
+maintainers:
+ - Adrien Grassein
+
+description: |
+ The LT8912 is a bridge device which convert DSI to HDMI
+
+properties:
+ compatible:
+enum:
+ - lontium,lt8912
+
+ reg:
+maxItems: 1
+
+ ddc-i2c-bus:
+maxItems: 1
+description: i2c bus used to read EDID of the connected display.
+
+ dsi-lanes:
+maxItems: 1
+description: dsi lanes count interconnected with lt8912.
+
+ reset-gpios:
+maxItems: 1
+description: GPIO connected to active high RESET pin.
+
+ ports:
+$ref: /schemas/graph.yaml#/properties/ports
+
+properties:
+ port@0:
+$ref: /schemas/graph.yaml#/properties/port
+description:
+ Primary MIPI port-1 for MIPI input
+
+required:
+ - port@0
+
+required:
+ - compatible
+ - ddc-i2c-bus
+ - dsi-lanes
+ - reg
+ - reset-gpios
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+#include
+
+i2c4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi-bridge@48 {
+compatible = "lontium,lt8912";
+reg = <0x48>;
+reset-gpios = < 0 GPIO_ACTIVE_LOW>;
+dsi-lanes = <4>;
+ddc-i2c-bus = <_i2c_bus>;
+
+ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+reg = <0>;
+
+hdmi_out_in: endpoint {
+ remote-endpoint = <_dsi_out>;
+};
+ };
+};
+ };
+};
+
+ddc_i2c_bus: i2c5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+};
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 5aa18cbfb883..01e7e356bfac 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10472,6 +10472,11 @@ S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git
F: drivers/hid/hid-lg-g15.c
+LONTIUM LT8912 MIPI TO HDMI BRIDGE
+M: Adrien Grassein
+S: Maintained
+F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
+
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
M: Sathya Prakash
M: Sreekanth Reddy
--
2.25.1
___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
[PATCH 1/2] dt-bindings: display: bridge: Add documentation for LT8912
Lontium LT8912 is a DSI to HDMI bridge.
Signed-off-by: Adrien Grassein
---
.../display/bridge/lontium,lt8912.yaml| 92 +++
MAINTAINERS | 5 +
2 files changed, 97 insertions(+)
create mode 100644
Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
diff --git
a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
new file mode 100644
index ..ed1a6ddaab2f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lontium LT8912 MIPI to HDMI Bridge
+
+maintainers:
+ - Adrien Grassein
+
+description: |
+ The LT8912 is a bridge device which convert DSI to HDMI
+
+properties:
+ compatible:
+enum:
+ - lontium,lt8912
+
+ reg:
+maxItems: 1
+
+ ddc-i2c-bus:
+maxItems: 1
+description: i2c bus used to read EDID of the connected display.
+
+ dsi-lanes:
+maxItems: 1
+description: dsi lanes count interconnected with lt8912.
+
+ reset-gpios:
+maxItems: 1
+description: GPIO connected to active high RESET pin.
+
+ ports:
+$ref: /schemas/graph.yaml#/properties/ports
+
+properties:
+ port@0:
+$ref: /schemas/graph.yaml#/properties/port
+description:
+ Primary MIPI port-1 for MIPI input
+
+required:
+ - port@0
+
+required:
+ - compatible
+ - ddc-i2c-bus
+ - dsi-lanes
+ - reg
+ - reset-gpios
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+#include
+
+i2c4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi-bridge@48 {
+compatible = "lontium,lt8912";
+reg = <0x48>;
+reset-gpios = < 0 GPIO_ACTIVE_LOW>;
+dsi-lanes = <4>;
+ddc-i2c-bus = <_i2c_bus>;
+
+ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+reg = <0>;
+
+hdmi_out_in: endpoint {
+ remote-endpoint = <_dsi_out>;
+};
+ };
+};
+ };
+};
+
+ddc_i2c_bus: i2c5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+};
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 5aa18cbfb883..01e7e356bfac 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10472,6 +10472,11 @@ S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git
F: drivers/hid/hid-lg-g15.c
+LONTIUM LT8912 MIPI TO HDMI BRIDGE
+M: Adrien Grassein
+S: Maintained
+F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml
+
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
M: Sathya Prakash
M: Sreekanth Reddy
--
2.25.1
___
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
