From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752451AbcDOW1i (ORCPT ); Fri, 15 Apr 2016 18:27:38 -0400 Received: from vps-vb.mhejs.net ([37.28.154.113]:49047 "EHLO vps-vb.mhejs.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751242AbcDOW1g (ORCPT ); Fri, 15 Apr 2016 18:27:36 -0400 Message-ID: <57116ACB.8030309@maciej.szmigiero.name> Date: Sat, 16 Apr 2016 00:27:23 +0200 From: "Maciej S. Szmigiero" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 MIME-Version: 1.0 To: Shawn Guo CC: "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , linux-kernel , Russell King , Kumar Gala , Ian Campbell , Mark Rutland , Pawel Moll , Rob Herring , Sascha Hauer , Fabio Estevam Subject: [PATCH v2] ARM: dts: imx6qdl-udoo: add 7 inch LCD touchscreen panel support Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The official UDOO board kit has 7 and 15.6 inch touchscreen LCD panels as options. This patch adds support for 7 inch panel only, but the 15.6 inch one should be easy to add using the same regulator, backlight device and LVDS channel. Since this panel is an option for UDOO board it is disabled by default and can be enabled (for example) by the following U-Boot commands: fdt set backlight status okay fdt set panelchan status okay fdt set panel7 status okay fdt set touchscreenp7 status okay The LVDS channels is also disabled by default to avoid warning from its driver. Signed-off-by: Maciej S. Szmigiero --- Changes from v1: make "compatible" property the first one where it exists, order new labels and pinctrl entries alphabetically. arch/arm/boot/dts/imx6qdl-udoo.dtsi | 96 +++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-udoo.dtsi b/arch/arm/boot/dts/imx6qdl-udoo.dtsi index d3e54e40a017..0dd5aa1b45e0 100644 --- a/arch/arm/boot/dts/imx6qdl-udoo.dtsi +++ b/arch/arm/boot/dts/imx6qdl-udoo.dtsi @@ -10,14 +10,49 @@ */ / { + aliases { + backlight = &backlight; + panelchan = &panelchan; + panel7 = &panel7; + touchscreenp7 = &touchscreenp7; + }; + chosen { stdout-path = &uart2; }; + backlight: backlight { + compatible = "gpio-backlight"; + gpios = <&gpio1 4 0>; + default-on; + status = "disabled"; + }; + memory { reg = <0x10000000 0x40000000>; }; + panel7: panel7 { + /* + * in reality it is a -20t (parallel) model, + * but with LVDS bridge chip attached, + * so it is equivalent to -19t model in drive + * characteristics + */ + compatible = "urt,umsh-8596md-19t"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_panel>; + power-supply = <®_panel>; + backlight = <&backlight>; + status = "disabled"; + + port { + panel_in: endpoint { + remote-endpoint = <&lvds0_out>; + }; + }; + }; + regulators { compatible = "simple-bus"; #address-cells = <1>; @@ -33,6 +68,14 @@ startup-delay-us = <2>; /* USB2415 requires a POR of 1 us minimum */ gpio = <&gpio7 12 0>; }; + + reg_panel: regulator@1 { + compatible = "regulator-fixed"; + reg = <1>; + regulator-name = "lcd_panel"; + enable-active-high; + gpio = <&gpio1 2 0>; + }; }; sound { @@ -67,6 +110,24 @@ status = "okay"; }; +&i2c3 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c3>; + status = "okay"; + + touchscreenp7: touchscreenp7@55 { + compatible = "sitronix,st1232"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_touchscreenp7>; + reg = <0x55>; + interrupt-parent = <&gpio1>; + interrupts = <13 8>; + gpios = <&gpio1 15 0>; + status = "disabled"; + }; +}; + &iomuxc { imx6q-udoo { pinctrl_enet: enetgrp { @@ -97,6 +158,27 @@ >; }; + pinctrl_i2c3: i2c3grp { + fsl,pins = < + MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001f8b1 + MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001f8b1 + >; + }; + + pinctrl_panel: panelgrp { + fsl,pins = < + MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x70 + MX6QDL_PAD_GPIO_4__GPIO1_IO04 0x70 + >; + }; + + pinctrl_touchscreenp7: touchscreenp7grp { + fsl,pins = < + MX6QDL_PAD_SD2_DAT0__GPIO1_IO15 0x70 + MX6QDL_PAD_SD2_DAT2__GPIO1_IO13 0x1b0b0 + >; + }; + pinctrl_uart2: uart2grp { fsl,pins = < MX6QDL_PAD_EIM_D26__UART2_TX_DATA 0x1b0b1 @@ -154,6 +236,20 @@ }; }; +&ldb { + status = "okay"; + + panelchan: lvds-channel@0 { + port@4 { + reg = <4>; + + lvds0_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + }; +}; + &uart2 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart2>;