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Subject[PATCH 1/1] ARM: dts: novena: Add LVDS-to-eDP bridge bindings
Date
From: Marek Vasut <marex@denx.de>

Add bindings for the LVDS-to-eDP bridge chip, IT6251, which is
used to connect the standard 1920x1080 panel on Novena laptop.

Tested on a Kosagi Novena laptop with imx6 display controller.

Based on v5.7-rc2, applies to drm-misc-next 5e6ed29d72d2

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Richard Marko <srk@48.io>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
---
arch/arm/boot/dts/imx6q-novena.dts | 57 +++++++++++++++++++++++++++++-
1 file changed, 56 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6q-novena.dts b/arch/arm/boot/dts/imx6q-novena.dts
index 69f170ff31c5..803a97e04dc4 100644
--- a/arch/arm/boot/dts/imx6q-novena.dts
+++ b/arch/arm/boot/dts/imx6q-novena.dts
@@ -109,6 +109,12 @@ heartbeat {
panel: panel {
compatible = "innolux,n133hse-ea1";
backlight = <&backlight>;
+
+ port {
+ panel_in_edp0: endpoint {
+ remote-endpoint = <&bridge_out_edp0>;
+ };
+ };
};

reg_2p5v: regulator-2p5v {
@@ -146,6 +152,7 @@ reg_display: regulator-display {
startup-delay-us = <200000>;
gpio = <&gpio5 28 GPIO_ACTIVE_HIGH>;
enable-active-high;
+ regulator-always-on;
};

reg_lvds_lcd: regulator-lvds-lcd {
@@ -155,6 +162,7 @@ reg_lvds_lcd: regulator-lvds-lcd {
regulator-max-microvolt = <3300000>;
gpio = <&gpio4 15 GPIO_ACTIVE_HIGH>;
enable-active-high;
+ regulator-always-on;
};

reg_pcie: regulator-pcie {
@@ -212,6 +220,17 @@ &audmux {
status = "okay";
};

+&clks {
+ assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
+ <&clks IMX6QDL_CLK_LDB_DI1_SEL>,
+ <&clks IMX6QDL_CLK_IPU1_DI0_PRE_SEL>,
+ <&clks IMX6QDL_CLK_IPU2_DI0_PRE_SEL>;
+ assigned-clock-parents = <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>,
+ <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>,
+ <&clks IMX6QDL_CLK_PLL2_PFD2_396M>,
+ <&clks IMX6QDL_CLK_PLL2_PFD2_396M>;
+};
+
&ecspi3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi3_novena>;
@@ -423,6 +442,29 @@ codec: es8328@11 {
<&clks IMX6QDL_CLK_CKO1_PODF>;
assigned-clock-rates = <0 0 722534400 22579200>;
};
+
+ it6251@5c {
+ compatible = "ite,it6251";
+ reg = <0x5c>, <0x5e>;
+ reg-names = "bridge", "lvds";
+ power-supply = <&reg_display>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lvdsbridge_novena>;
+
+ ports {
+ port@0 {
+ bridge_out_edp0: endpoint {
+ remote-endpoint = <&panel_in_edp0>;
+ };
+ };
+
+ port@1 {
+ bridge_in_lvds0: endpoint {
+ remote-endpoint = <&lvds0_out>;
+ };
+ };
+ };
+ };
};

&kpp {
@@ -443,6 +485,14 @@ lvds-channel@0 {
fsl,data-width = <24>;
fsl,panel = <&panel>;
status = "okay";
+
+ port@4 {
+ reg = <4>;
+
+ lvds0_out: endpoint {
+ remote-endpoint = <&bridge_in_lvds0>;
+ };
+ };
};
};

@@ -529,10 +579,15 @@ MX6QDL_PAD_CSI0_DAT6__AUD3_TXFS 0x130b0
>;
};

+ pinctrl_lvdsbridge_novena: lvdsbridgegrp-novena {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT10__GPIO5_IO28 0x1b0b1
+ >;
+ };
+
pinctrl_backlight_novena: backlightgrp-novena {
fsl,pins = <
MX6QDL_PAD_DISP0_DAT8__PWM1_OUT 0x1b0b0
- MX6QDL_PAD_CSI0_DAT10__GPIO5_IO28 0x1b0b1
MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x1b0b1
>;
};
--
2.25.1
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