From: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
The Allwinner H616 (and its H618, H700 and T507 package variants with
the same die) have 28 video output pins for RGB/SPI and LVDS display.
These are in GPIO Bank D and are multiplexed.
In RGB mode, pins PD0-PD23 are for 24-bit RGB pixel output, pins
PD24-PD27 are for clock, DE, HSYNC and VSYNC, and PD28 is a PWM
backlight control.
In LVDS mode, pins PD0-PD9 are for LVDS0 and LVDS1, and can be
configured by the H616 display engine for either one high-resolution
(dual link) or two low resolution displays.
Add device tree nodes for the LCD, LVDS0, LVDS1 and PWM pins.
Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
[ryan@xxxxxxxxxxxxx: add RGB, LVDS1 and PWM pin assignments]
Signed-off-by: Ryan Walklin <ryan@xxxxxxxxxxxxx>
---
.../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 32 +++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index 242bac95840f8..806ad87705abc 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -322,6 +322,32 @@ ir_rx_pin: ir-rx-pin {
function = "ir_rx";
};
+ /omit-if-no-ref/
+ lcd0_rgb888_pins: lcd0-rgb888-pins {
+ pins = "PD0", "PD1", "PD2", "PD3",
+ "PD4", "PD5", "PD6", "PD7",
+ "PD8", "PD9", "PD10", "PD11",
+ "PD12", "PD13", "PD14", "PD15",
+ "PD16", "PD17", "PD18", "PD19",
+ "PD20", "PD21", "PD22", "PD23",
+ "PD24", "PD25", "PD26", "PD27";
+ function = "lcd0";
+ };
+
+ /omit-if-no-ref/
+ lvds0_pins: lvds0-pins {
+ pins = "PD0", "PD1", "PD2", "PD3", "PD4",
+ "PD5", "PD6", "PD7", "PD8", "PD9";
+ function = "lvds0";
+ };
+
+ /omit-if-no-ref/
+ lvds1_pins: lvds1-pins {
+ pins = "PD10", "PD11", "PD12", "PD13", "PD14",
+ "PD15", "PD16", "PD17", "PD18", "PD19";
+ function = "lvds1";
+ };
+
mmc0_pins: mmc0-pins {
pins = "PF0", "PF1", "PF2", "PF3",
"PF4", "PF5";
@@ -348,6 +374,12 @@ mmc2_pins: mmc2-pins {
bias-pull-up;
};
+ /omit-if-no-ref/
+ pwm0_pin: pwm0-pin {
+ pins = "PD28";
+ function = "pwm0";
+ };
+
/omit-if-no-ref/
spi0_pins: spi0-pins {
pins = "PC0", "PC2", "PC4";
--
2.48.1
