Add decriptions about supported chips, including MT2701 & MT8173 &
mt8183
1. Add more chips support. ex. MT2701 & MT8173 & MT8183
2. Add property "pinctrl-names" to swap pin mode between gpio and dpi mode. Set
pin mode to gpio oupput-low to avoid leakage current when dpi disable.
3. Add property "pclk-sample" to config the dpi sample on falling (0),
rising (1), both falling and rising (2).
Signed-off-by: Jitao Shi <jitao.shi@xxxxxxxxxxxx>
---
.../bindings/display/mediatek/mediatek,dpi.txt | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
index b6a7e7397b8b..0dee4f7a227e 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
@@ -7,6 +7,7 @@ output bus.
Required properties:
- compatible: "mediatek,<chip>-dpi"
+ the supported chips are mt2701 , mt8173 and mt8183.
- reg: Physical base address and length of the controller's registers
- interrupts: The interrupt signal from the function block.
- clocks: device clocks
@@ -16,6 +17,11 @@ Required properties:
Documentation/devicetree/bindings/graph.txt. This port should be connected
to the input port of an attached HDMI or LVDS encoder chip.
+Optional properties:
+- pinctrl-names: Contain "gpiomode" and "dpimode".
+- pclk-sample: 0: sample in falling edge, 1: sample in rising edge, 2: sample
+ in both falling and rising edge.
+
Example:
dpi0: dpi@1401d000 {
@@ -26,6 +32,10 @@ dpi0: dpi@1401d000 {
<&mmsys CLK_MM_DPI_ENGINE>,
<&apmixedsys CLK_APMIXED_TVDPLL>;
clock-names = "pixel", "engine", "pll";
+ pclk-sample = 0;
+ pinctrl-names = "gpiomode", "dpimode";
+ pinctrl-0 = <&dpi_pin_gpio>;
+ pinctrl-1 = <&dpi_pin_func>;
port {
dpi0_out: endpoint {
--
2.21.0
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