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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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fe244e4c6a
The Q8 design for A23/A33 tablets have an 18-bit RGB LCD panel connected to the LCD interface on the SoC, the DC1SW output on the PMIC providing power for the LCD, and PH7 toggling the reset pin for the panel. This patch adds a device node for the panel, describing the above, and enables the display pipeline. The actual model or compatible string for the panel should be added in the tablet device tree file. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
133 lines
3.7 KiB
Plaintext
133 lines
3.7 KiB
Plaintext
/*
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* Copyright 2015 Hans de Goede <hdegoede@redhat.com>
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*
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* This file is dual-licensed: you can use it either under the terms
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* of the GPL or the X11 license, at your option. Note that this dual
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* licensing only applies to this file, and not this project as a
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* whole.
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*
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* a) This file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Or, alternatively,
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*
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* b) Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "sunxi-reference-design-tablet.dtsi"
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#include "sun8i-reference-design-tablet.dtsi"
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/ {
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aliases {
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serial0 = &r_uart;
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/* Make u-boot set mac-address for wifi without an eeprom */
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ethernet0 = &sdio_wifi;
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};
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panel: panel {
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/* Tablet dts should provide panel compatible */
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backlight = <&backlight>;
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enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
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power-supply = <®_dc1sw>;
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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#address-cells = <1>;
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#size-cells = <0>;
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panel_input: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&tcon0_out_lcd>;
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};
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};
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};
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wifi_pwrseq: wifi_pwrseq {
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compatible = "mmc-pwrseq-simple";
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/*
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* Q8 boards use various PL# pins as wifi-en. On other boards
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* these may be connected to a wifi module output pin. To avoid
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* short-circuits we configure these as inputs with pull-ups via
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* pinctrl, instead of listing them as active-low reset-gpios.
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*/
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pinctrl-names = "default";
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pinctrl-0 = <&wifi_pwrseq_pin_q8>;
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/* The esp8089 needs 200 ms after driving wifi-en high */
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post-power-on-delay-ms = <200>;
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};
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};
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&de {
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status = "okay";
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};
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&ehci0 {
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status = "okay";
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};
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&mmc1 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc1_pg_pins>;
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vmmc-supply = <®_dldo1>;
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mmc-pwrseq = <&wifi_pwrseq>;
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bus-width = <4>;
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non-removable;
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status = "okay";
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sdio_wifi: sdio_wifi@1 {
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reg = <1>;
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};
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};
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&r_pio {
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wifi_pwrseq_pin_q8: wifi-pwrseq-pins {
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pins = "PL6", "PL7", "PL11";
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function = "gpio_in";
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bias-pull-up;
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};
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};
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&tcon0 {
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pinctrl-names = "default";
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pinctrl-0 = <&lcd_rgb666_pins>;
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status = "okay";
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};
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&tcon0_out {
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tcon0_out_lcd: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&panel_input>;
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};
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};
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&usbphy {
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usb1_vbus-supply = <®_dldo1>;
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};
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