Hi Sergio, Sorry looks like the tve0 is only required for composite / VGA output.
Which LCD Panel do you use ? Looks like the bindings you are using should be declared on a I2C bus. https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/display/panel/olimex,lcd-olinuxino.yaml So the drivers will read the configuration from the I2C eeprom Also check that CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO is enabled. Regards, Clement On Fri, 11 Dec 2020 at 17:37, Clément Péron <peron.c...@gmail.com> wrote: > > Hi Sergio, > > Maybe you missed enabling tve0 ? > > https://elixir.bootlin.com/linux/v5.9.13/source/arch/arm/boot/dts/sun5i.dtsi#L244 > > Also could you send the bootlog is this doesn't fix your issue. > > Clement > > On Fri, 11 Dec 2020 at 17:13, Sergio Sota <pikasl...@gmail.com> wrote: > > > > Hi Clement, > > > > this week we have had no luck with Allwinner A13 video decoding, here you > > can find my device tree. We have added panel description (before we used > > an uboot configuration) front-end, back-end and tcon. Also on linux mainline > > kernel (5.9.11) we have selected DRM_SUN4I and DRM_SUN4I_BACKEND, > > but seems to be no DRM plane support on our system (no sun4i-drm kernel > > messages and no /dev/dri/card0 device) > > > > Also with VLC player we have selected in the menu the configuration options: > > VA-API video decoder and X11 video output (XCB) but no video decoding. > > With MPV player instead we can see some video frames, but it seems to be > > trying to decode via software, so it is almost like static pictures. > > > > Best Regards, > > Sergio Sota > > > > This device tree is based on mainline kernel sun5i-a13-olinuxino-micro.dts > > > > ####################################################### > > ################## DEVICE TREE START ##################### > > ####################################################### > > > > > > /* > > * Copyright 2012 Maxime Ripard <maxime.rip...@free-electrons.com> > > * Copyright 2013 Hans de Goede <hdego...@redhat.com> > > * > > * This file is dual-licensed: you can use it either under the terms > > * of the GPL or the X11 license, at your option. Note that this dual > > * licensing only applies to this file, and not this project as a > > * whole. > > * > > * a) This file is free software; you can redistribute it and/or > > * modify it under the terms of the GNU General Public License as > > * published by the Free Software Foundation; either version 2 of the > > * License, or (at your option) any later version. > > * > > * This file is distributed in the hope that it will be useful, > > * but WITHOUT ANY WARRANTY; without even the implied warranty of > > * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > > * GNU General Public License for more details. > > * > > * Or, alternatively, > > * > > * b) Permission is hereby granted, free of charge, to any person > > * obtaining a copy of this software and associated documentation > > * files (the "Software"), to deal in the Software without > > * restriction, including without limitation the rights to use, > > * copy, modify, merge, publish, distribute, sublicense, and/or > > * sell copies of the Software, and to permit persons to whom the > > * Software is furnished to do so, subject to the following > > * conditions: > > * > > * The above copyright notice and this permission notice shall be > > * included in all copies or substantial portions of the Software. > > * > > * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > > * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES > > * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND > > * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT > > * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, > > * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING > > * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR > > * OTHER DEALINGS IN THE SOFTWARE. > > */ > > > > /dts-v1/; > > #include "sun5i-a13.dtsi" > > #include "sunxi-common-regulators.dtsi" > > #include <dt-bindings/gpio/gpio.h> > > #include <dt-bindings/pwm/pwm.h> > > #include <dt-bindings/interrupt-controller/irq.h> > > > > / { > > model = "Olimex A13-Olinuxino Micro"; > > compatible = "olimex,a13-olinuxino-micro", "allwinner,sun5i-a13"; > > > > aliases { > > serial0 = &uart1; > > }; > > > > chosen { > > stdout-path = "serial0:115200n8"; > > }; > > > > leds { > > compatible = "gpio-leds"; > > pinctrl-names = "default"; > > pinctrl-0 = <&led_pins_olinuxinom>; > > > > power { > > label = "a13-olinuxino-micro:green:power"; > > gpios = <&pio 6 9 GPIO_ACTIVE_HIGH>; /* PG9 */ > > default-state = "on"; > > }; > > }; > > > > /***************************************************************************** > > * clock spi0 mcp2515 (spi can controller) > > > > *****************************************************************************/ > > clocks { > > #address-cells = <1>; > > #size-cells = <1>; > > can0_osc_fixed: can0_osc_fixed { > > compatible = "fixed-clock"; > > #clock-cells = <0>; > > clock-frequency = <10000000>; > > }; > > }; > > > > /***************************************************************************** > > * panel backlight > > > > *****************************************************************************/ > > backlight: backlight { > > compatible = "pwm-backlight"; > > pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>; > > brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; > > default-brightness-level = <8>; > > }; > > > > /***************************************************************************** > > * panel tft lcd 10.1" (rgb interface) > > > > *****************************************************************************/ > > panel { > > compatible = "olimex,lcd-olinuxino", "simple-panel"; > > power-supply = <®_vcc3v3>; > > enable-gpios = <&pio 1 10 GPIO_ACTIVE_HIGH>; /* PB10 */ > > backlight = <&backlight>; > > status = "okay"; > > > > display-timings { > > timing0 { > > clock-frequency = <45000000>; > > hactive = <1024>; > > vactive = <600>; > > hfront-porch = <16>; > > hback-porch = <150>; > > hsync-len = <10>; > > vback-porch = <2>; > > vfront-porch = <21>; > > vsync-len = <2>; > > hsync-active = <0>; > > vsync-active = <0>; > > de-active = <1>; > > pixelclk-active = <1>; > > }; > > }; > > > > port { > > #address-cells = <1>; > > #size-cells = <0>; > > > > panel_input: endpoint { > > remote-endpoint = <&tcon0_out_lcd>; > > }; > > }; > > }; > > }; > > > > &ehci0 { > > status = "okay"; > > }; > > > > &i2c0 { > > status = "okay"; > > }; > > > > &i2c1 { > > status = "okay"; > > }; > > > > &i2c2 { > > status = "okay"; > > }; > > > > &mmc0 { > > vmmc-supply = <®_vcc3v3>; > > bus-width = <4>; > > cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */ > > status = "okay"; > > }; > > > > &ohci0 { > > status = "okay"; > > }; > > > > &otg_sram { > > status = "okay"; > > }; > > > > ®_usb0_vbus { > > gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */ > > status = "okay"; > > }; > > > > ®_usb1_vbus { > > gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */ > > status = "okay"; > > }; > > > > &uart1 { > > pinctrl-names = "default"; > > pinctrl-0 = <&uart1_pg_pins>; > > status = "okay"; > > }; > > > > &usb_otg { > > dr_mode = "otg"; > > status = "okay"; > > }; > > > > &usbphy { > > usb0_id_det-gpios = <&pio 6 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* > > PG2 */ > > usb0_vbus_det-gpios = <&pio 6 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; > > /* PG1 */ > > usb0_vbus-supply = <®_usb0_vbus>; > > usb1_vbus-supply = <®_usb1_vbus>; > > status = "okay"; > > }; > > > > &pio { > > led_pins_olinuxinom: led-pin { > > pins = "PG9"; > > function = "gpio_out"; > > drive-strength = <20>; > > }; > > > > /***************************************************************************** > > * spi0 pins > > > > *****************************************************************************/ > > spi0_pins: spi0_pins { > > pins = "PC0", "PC1", "PC2"; > > function = "spi0"; > > }; > > > > spi0_cs0_pin: spi0_cs_pin { > > pins = "PC3"; > > function = "spi0"; > > }; > > > > /***************************************************************************** > > * spi2 ethernet controller (enc28j60) pins > > > > *****************************************************************************/ > > eth0_irq_pin: eth0_irq_pin { > > pins = "PB3"; > > function = "irq"; > > bias-pull-up; > > }; > > > > /***************************************************************************** > > * spi2 pins > > > > *****************************************************************************/ > > spi2_pins: spi2_pins { > > pins = "PE1", "PE2", "PE3"; > > function = "spi2"; > > }; > > > > spi2_cs0_pin: spi2_cs0_pin { > > pins = "PE0"; > > function = "spi2"; > > }; > > > > /***************************************************************************** > > * spi0 can controller (mcp2515) pins > > > > *****************************************************************************/ > > can0_irq_pin: can0_irq_pin { > > pins = "PB4"; > > function = "irq"; > > bias-pull-up; > > }; > > }; > > > > /***************************************************************************** > > * spi0 (mcp2515 spi can controller) > > > > *****************************************************************************/ > > &spi0 { > > #address-cells = <1>; > > #size-cells = <0>; > > pinctrl-names = "default"; > > pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>; > > status = "okay"; > > > > mcp2515@0 { > > compatible = "microchip,mcp2515"; > > reg = <0>; > > pinctrl-names = "default"; > > pinctrl-0 = <&can0_irq_pin>; > > interrupt-parent = <&pio>; > > interrupts = <1 4 2>; /* PB4 IRQ_TYPE_EDGE_FALLING */ > > clocks = <&can0_osc_fixed>; > > spi-max-frequency = <10000000>; > > status = "okay"; > > }; > > }; > > > > /***************************************************************************** > > * spi2 (enc28j60 spi ethernet controller) > > > > *****************************************************************************/ > > &spi2 { > > #address-cells = <1>; > > #size-cells = <0>; > > pinctrl-names = "default"; > > pinctrl-0 = <&spi2_pins>, <&spi2_cs0_pin>; > > status = "okay"; > > > > enc28j60@0 { > > compatible = "microchip,enc28j60"; > > /* compatible = "microchip,encx24j600"; */ > > reg = <0>; > > pinctrl-names = "default"; > > pinctrl-0 = <ð0_irq_pin>; > > interrupt-parent = <&pio>; > > interrupts = <1 3 2>; /* PB3 IRQ_TYPE_EDGE_FALLING */ > > spi-max-frequency = <12000000>; > > status = "okay"; > > }; > > }; > > > > /***************************************************************************** > > * codec audio controller (headphones) > > > > *****************************************************************************/ > > &codec { > > status = "okay"; > > }; > > > > /***************************************************************************** > > * crypto engine (sha, md5, rng) > > > > *****************************************************************************/ > > &crypto { > > status = "okay"; > > }; > > > > /***************************************************************************** > > * front end (display engine) > > > > *****************************************************************************/ > > &fe0 { > > status = "okay"; > > }; > > > > /***************************************************************************** > > * back end (display engine) > > > > *****************************************************************************/ > > &be0 { > > status = "okay"; > > }; > > > > /***************************************************************************** > > * pipeline (display engine) > > > > *****************************************************************************/ > > &tcon0 { > > pinctrl-names = "default"; > > pinctrl-0 = <&lcd_rgb666_pins>; > > status = "okay"; > > }; > > > > /***************************************************************************** > > * timing controller (panel tft lcd 10.1") > > > > *****************************************************************************/ > > &tcon0_out { > > tcon0_out_lcd: endpoint@0 { > > reg = <0>; > > remote-endpoint = <&panel_input>; > > }; > > }; > > > > /***************************************************************************** > > * pwm controller > > > > *****************************************************************************/ > > &pwm { > > pinctrl-names = "default"; > > pinctrl-0 = <&pwm0_pin>; > > status = "okay"; > > }; > > > > > > ####################################################### > > ################### DEVICE TREE END ###################### > > ####################################################### > > > > El domingo, 6 de diciembre de 2020 a las 19:02:09 UTC+1, peron...@gmail.com > > escribió: > >> > >> Hi Sergio, > >> > >> On Fri, 4 Dec 2020 at 13:31, Sergio Sota <pika...@gmail.com> wrote: > >> > > >> > Dear all, > >> > > >> > I'm building a linux system for the Olimex A13SOM module. This little > >> > module comes > >> > with the Allwinner A13 SOC. In the past we have been using other modules > >> > with the > >> > Allwinner A20 SOC and the old sunxi-linux kernel in order to have > >> > support for all > >> > the SOC peripherals (as the Video Engine decoder, Mali GPU, etc) > >> > > >> > This time we would like to use a mainline kernel, taking into account > >> > that by now > >> > almost all peripherals are supported in mainline. We have had luck > >> > tunning device > >> > tree (as we were used to use .fex files) and by now we can have Ethernet > >> > over SPI, > >> > Can interface over SPI, ALSA audio output, LCD RGB video output, Cryto > >> > engine to > >> > generate fast entropy, OpenGL ES support (thanks to LIMA driver and > >> > Mesa3d libs) > >> > and so on... but we would like also to have video decoding support. > >> > > >> > We have turned on the frontend, backend, video engine in the device > >> > tree, build > >> > the kernel with Cedrus V4L M2M driver, libva_vl42_request and > >> > v4l2_request_test. > >> > (and also set the CMA memory allocation, environment variables, etc) > >> > > >> > Using vainfo everything is ok, the linux driver-libva request part > >> > works, but then > >> > we check with v4l2_request_test utility and it fails as there is no DRM > >> > support on > >> > our system. We have on the system /dev/video0 and /dev/media0 but no > >> > /dev/dri/card0 > >> > device (in fact we selected the linux sun4i-drm driver but no message > >> > appers on the > >> > boot sequence regarding this, even when build as module it happens > >> > nothing...) > >> > > >> > We have checked the Cedrus driver information and appears to be no > >> > support for the > >> > DRM plane in A13 SOC (broken/missing) and as I understand that means > >> > that part of > >> > the picture composing work should be done by software (and that's not > >> > reliable) > >> > > >> > My question is: is there DRM plane support for A13 SOC? (as time goes on > >> > I checked > >> > there has been work done in the mainline kernel and fixes made) Then, in > >> > case of no > >> > support, are there plans to add this support in the future? and finally, > >> > could we > >> > play video files without this DRM support? by what means? > >> > >> Sorry I can't help you a lot on this. > >> I don't know if the wiki is up to date for this. > >> But note that A13 is similar to R8 => C.H.I.P Computer. > >> All stuff you found on R8 will be the same for A13. > >> > >> Have a look at the R8 CHIP device-tree. > >> https://elixir.bootlin.com/linux/latest/source/arch/arm/boot/dts/sun5i-r8-chip.dts > >> > >> And check that you have a correct TCON description in your dt. > >> If you can, post your device-tree. > >> And don't forget to reply if you make it works :) > >> > >> Regards, > >> Clement > >> > >> > >> > > >> > Thanks in advance for your help and your time, your team have made a > >> > wonderful > >> > work. I also apologize for my poor English, and for writing this email > >> > as maybe this is > >> > not the proper way to issue this questions, but didn't know other way > >> > > >> > Best Regards, > >> > Sergio Sota > >> > > >> > -- > >> > You received this message because you are subscribed to the Google > >> > Groups "linux-sunxi" group. > >> > To unsubscribe from this group and stop receiving emails from it, send > >> > an email to linux-sunxi...@googlegroups.com. > >> > To view this discussion on the web, visit > >> > https://groups.google.com/d/msgid/linux-sunxi/a6390bb5-69f1-47a7-864c-399109838857n%40googlegroups.com. > > > > -- > > You received this message because you are subscribed to the Google Groups > > "linux-sunxi" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to linux-sunxi+unsubscr...@googlegroups.com. > > To view this discussion on the web, visit > > https://groups.google.com/d/msgid/linux-sunxi/565d70c3-b708-4216-83fd-ae37d42858e0n%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/CAJiuCcdqe%2BtP9kjHeU_6TVd6ud-rY5OGQhNSU6vM_PnvBVG3qg%40mail.gmail.com.
