HI Cedric, Thanks for your prompt reply. I am using 3.8.13-bone68 kernel.but i am not understand how to enable the bb-view dts in the config files as a starting point. That file not having with me. Please tell me how to proceed
thanks On Mon, Feb 16, 2015 at 11:07 PM, Cedric Malitte <cedric.mali...@gmail.com> wrote: > Hi, > > you should look at this > http://www.element14.com/community/servlet/JiveServlet/previewBody/65082-102-5-294046/BB%20VIEW%20User%20Manual%20V3.pdf > > This is also a 24bit rgb lcd panel. > > If you want to enable your panel in linux, it will depend on your kernel > version. > If you have the 3.8.13, the one that came on the BBB , you will just have to > enalbe the bb-view dts in the config files as a starting point. > > For other kernels, I think bb-view is enabled at some point, but I'm not > using those displays. > I use the 4D systems cape displays because they are 16 bits, so it saves me > a few pins on the BBB. > > Regards. > > > 2015-02-16 7:40 GMT-05:00 <mahajanrahulc...@gmail.com>: > >> Hi Cedric, >> >> can you tell me how your applying patch i am new to device tree. >> can you tell me i am using this LCD paneel >> >> http://www.aliexpress.com/store/product/4-3-inch-40PIN-TFT-LCD-Screen-with-Touch-Panel-OTA5180A-Drive-IC-480-272-RGB/224898_1899445212.html >> but its not working as per this i changes in .dts file >> but LCD is not working. >> >> Please give me details. >> >> thanks >> >> On Saturday, August 2, 2014 at 12:20:24 PM UTC+5:30, Cedric Malitte wrote: >>> >>> Hi, >>> >>> I compiled the 3.13 and 3.15 kernel using Robert tools, and I saw this >>> hoping to get LCD4 cape support: >>> http://www.spinics.net/lists/linux-omap/msg109735.html >>> >>> I applied the patch against the kernel tree, but nothing happened at boot >>> after a rebuild, I mean screen stayed black. >>> >>> A quick look in the kernel tree dirs and the am335x-bone-display-cape.dts >>> has not been compiled. >>> So I tried to ass it to Makefile, rebuild and got a fatal error from DTC. >>> >>> I'm not very used to DT, so if someone could have a look at this file and >>> tell me what can be wrong, I'll try to rebuild it. >>> >>> /* >>> * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/ >>> * >>> * This program is free software; you can redistribute it and/or modify >>> * it under the terms of the GNU General Public License version 2 as >>> * published by the Free Software Foundation. >>> * >>> * This DTS adds supports for display capes using LCD interface for >>> display >>> * and GPIO or PWM interface for backlight controls. >>> */ >>> &am33xx_pinmux { >>> bbcape_backlight_pins: bbcape_backlight_pins { >>> pinctrl-single,pins = < >>> 0x48 (PIN_OUTPUT | MUX_MODE7) /* gpmc_a[2].GPIO1[18] (backlight control) >>> */ >>> >; >>> }; >>> bbcape_lcd_pins: bbcape_lcd_pins { >>> pinctrl-single,pins = < >>> 0xa0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data0.lcd_data0 */ >>> 0xa4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data1.lcd_data1 */ >>> 0xa8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data2.lcd_data2 */ >>> 0xac (PIN_OUTPUT | MUX_MODE0) /* lcd_data3.lcd_data3 */ >>> 0xb0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data4.lcd_data4 */ >>> 0xb4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data5.lcd_data5 */ >>> 0xb8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data6.lcd_data6 */ >>> 0xbc (PIN_OUTPUT | MUX_MODE0) /* lcd_data7.lcd_data7 */ >>> 0xc0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data8.lcd_data8 */ >>> 0xc4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data9.lcd_data9 */ >>> 0xc8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data10.lcd_data10 */ >>> 0xcc (PIN_OUTPUT | MUX_MODE0) /* lcd_data11.lcd_data11 */ >>> 0xd0 (PIN_OUTPUT | MUX_MODE0) /* lcd_data12.lcd_data12 */ >>> 0xd4 (PIN_OUTPUT | MUX_MODE0) /* lcd_data13.lcd_data13 */ >>> 0xd8 (PIN_OUTPUT | MUX_MODE0) /* lcd_data14.lcd_data14 */ >>> 0xdc (PIN_OUTPUT | MUX_MODE0) /* lcd_data15.lcd_data15 */ >>> 0xe0 (PIN_OUTPUT | MUX_MODE0) /* lcd_vsync.lcd_vsync */ >>> 0xe4 (PIN_OUTPUT | MUX_MODE0) /* lcd_hsync.lcd_hsync */ >>> 0xe8 (PIN_OUTPUT | MUX_MODE0) /* lcd_pclk.lcd_pclk */ >>> 0xec (PIN_OUTPUT | MUX_MODE0) /* lcd_ac_bias_en.lcd_ac_bias_en (lcd_en) >>> */ >>> 0x1a4 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* mcasp0_fsr.gpio3[19] (lcd_disen) >>> */ >>> >; >>> }; >>> bbcape_touchscreen_pins: bbcape_touchscreen_pins { >>> pinctrl-single,pins = < >>> 0x184 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* uart1_txd.gpio0[15] (enter) */ >>> 0x40 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_a0.gpio1[16] (left) */ >>> 0x44 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_a1.gpio1[17] (right) */ >>> 0x4c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_a3.gpio1[19] (up) */ >>> 0x198 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* mcasp0_axr0.gpio3[16] (down) */ >>> >; >>> }; >>> }; >>> >>> / { >>> backlight { >>> status = "okay"; >>> compatible = "gpio-backlight"; >>> pinctrl-names = "default"; >>> pinctrl-0 = <&bbcape_backlight_pins>; >>> gpios = <&gpio1 18 GPIO_ACTIVE_HIGH>; >>> default-on; >>> }; >>> panel { >>> status = "okay"; >>> compatible = "ti,tilcdc,panel"; >>> pinctrl-names = "default"; >>> pinctrl-0 = <&bbcape_lcd_pins>; >>> panel-info { >>> ac-bias = <255>; >>> ac-bias-intrpt = <0>; >>> dma-burst-sz = <16>; >>> bpp = <16>; >>> fdd = <0x80>; >>> sync-edge = <0>; >>> sync-ctrl = <1>; >>> raster-order = <0>; >>> fifo-th = <0>; >>> }; >>> display-timings { >>> native-mode = <&timing0>; >>> /* www.newhavendisplay.com/app_notes/OTA5180A.pdf */ >>> timing0: 480x272 { >>> clock-frequency = <9200000>; >>> hactive = <480>; >>> vactive = <272>; >>> hfront-porch = <8>; >>> hback-porch = <47>; >>> hsync-len = <41>; >>> vback-porch = <2>; >>> vfront-porch = <3>; >>> vsync-len = <10>; >>> hsync-active = <0>; >>> vsync-active = <0>; >>> de-active = <1>; >>> pixelclk-active = <0>; >>> }; >>> }; >>> }; >>> }; >>> >>> >>> Thanks >>> >>> Cedric. >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/wAcTyHqLfwg/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> beagleboard+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. > > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/wAcTyHqLfwg/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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