On Tue, 2022-05-24 at 11:35 +0800, Chunfeng Yun wrote:
On Mon, 2022-05-23 at 12:47 +0200, Guillaume Ranquet wrote:
From: Markus Schneider-Pargmann msp@baylibre.com
This controller is present on several mediatek hardware. Currently mt8195 and mt8395 have this controller without a functional difference, so only one compatible field is added.
The controller can have two forms, as a normal display port and as an embedded display port.
Signed-off-by: Markus Schneider-Pargmann msp@baylibre.com Signed-off-by: Guillaume Ranquet granquet@baylibre.com
.../display/mediatek/mediatek,dp.yaml | 99 +++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.ya ml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.ya ml new file mode 100644 index 000000000000..36ae0a6df299 --- /dev/null +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.ya ml @@ -0,0 +1,99 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/mediatek/mediatek,dp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml#
+title: MediaTek Display Port Controller
+maintainers:
- CK Hu ck.hu@mediatek.com
- Jitao shi jitao.shi@mediatek.com
+description: |
- Device tree bindings for the MediaTek (embedded) Display Port
controller
- present on some MediaTek SoCs.
+properties:
- compatible:
- enum:
- mediatek,mt8195-dp-tx- reg:
- maxItems: 1
- interrupts:
- maxItems: 1
- clocks:
- items:
- description: faxi clock- clock-names:
- items:
- const: faxi- power-domains:
- maxItems: 1
- ports:
- $ref: /schemas/graph.yaml#/properties/ports
- properties:
port@0:$ref: /schemas/graph.yaml#/properties/portdescription: Input endpoint of the controller, usuallydp_intf
port@1:$ref: /schemas/graph.yaml#/properties/portdescription: Output endpoint of the controller- max-lanes:
- maxItems: 1
- description: maximum number of lanes supported by the hardware
- max-linkrate:
- maxItems: 1
- description: maximum link rate supported by the hardware
+required:
- compatible
- reg
- interrupts
- ports
- max-lanes
- max-linkrate
+additionalProperties: false
+examples:
- |
- #include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/power/mt8195-power.h>
- edp_tx: edp_tx@1c500000 {
'edp_tx: ' can be removed
Hello Chunfeng,
ok, I will drop it.
compatible = "mediatek,mt8195-dp-tx";reg = <0 0x1c500000 0 0x8000>;reg = <0x1c500000 0x8000>; #address-cells, #size-cells are both 1 by default
I will use "eg = <0x1c500000 0x8000>;" in binding example.
BRs, Bo-Chen
interrupts = <GIC_SPI 676 IRQ_TYPE_LEVEL_HIGH 0>;power-domains = <&spm MT8195_POWER_DOMAIN_EPD_TX>;pinctrl-names = "default";pinctrl-0 = <&edp_pin>;max-lanes = /bits/ 8 <4>;max-linkrate = /bits/ 8 <0x1e>;ports {#address-cells = <1>;#size-cells = <0>;port@0 {reg = <0>;edp_in: endpoint {remote-endpoint = <&dp_intf0_out>;};};port@1 {reg = <1>;edp_out: endpoint {remote-endpoint = <&panel_in>;};};};- };