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 >; };