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path: root/drivers/video/sunxi_display.c
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* sunxi: video: Add support for tl059wv5c0 lcd panelsHans de Goede2015-02-20-0/+7
| | | | | | | | Add support for the 6" 480x800 tl059wv5c0 panel used on e.g. Utoo P66 and Aigo M60/M608/M606 tablets. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Add support for LCD reset pinHans de Goede2015-02-20-1/+10
| | | | | | | On some boards there is a gpio to reset the LCD panel, add support for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Dynamically reserve framebuffer memoryHans de Goede2015-02-16-5/+13
| | | | | | | | | | Only use CONFIG_SUNXI_MAX_FB_SIZE to reserve memory at the top when relocating u-boot, and calculate the actual amount of memory necessary when setting up the video-mode and use only that, freeing up some additional memory for use by the kernel. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Do not use CONFIG_SYS_MEM_TOP_HIDE for the framebufferHans de Goede2015-02-16-1/+21
| | | | | | | | | | | | | | | | | | Do not use CONFIG_SYS_MEM_TOP_HIDE for the framebuffer, instead override board_get_usable_ram_top to make sure that u-boot is not relocated into the area where we want to use the framebuffer, and patch the devicetree from sunxi_simplefb_setup() to tell the kernel to not touch the framebuffer. This makes u-boot properly see the framebuffer as dram, and initalize the level 2 cache for it, fixing the very slow cfb scrolling problem. As an added bonus this stops us from reserving the framebuffer when simplefb is not used because an older kernel is booted, or hdp is used and no hdmi cable was plugged in, freeing up the memory for kernel use in these cases. Reported-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Force h/vsync active high when using ext. vga dac on some boardsHans de Goede2015-02-02-3/+9
| | | | | | | | | | | | | | | | | | On both my A13-OLinuxIno and my A13-OLinuxIno-Micro, the vga output gives an unstable image when active low v or hsync is used. The problem seems to be specific to the OLinuxIno A13 (normal & micro) boards. I've just looked up the schematics and they use an opendrain driver for the vga sync lines, and with sync pulses it is the logical high->low edge of the pulse which counts for the timing, which with an active low sync is being driven by the pull-up, and that simply seems to not drive it hard enough to get a stable image. So force v and hsync active high on these boards. independent of what the modeline says. This fixes the unstable image. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Make pwm polarity configurableHans de Goede2015-01-23-6/+11
| | | | | | | | It turns out that there are some panels where the pwm input is not active low, so make it configurable. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Add support for Hitachi tx18d42vm LVDS LCD panelsHans de Goede2015-01-23-0/+5
| | | | | | | | | | Add support for Hitachi tx18d42vm LVDS LCD panels, these panels have a lcd controller which needs to be initialized over SPI, once that is done they work like a regular LVDS panel. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Anatolij Gustschin <agust@denx.de> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Use frontend for dma on sun4i to fix memory bandwidth problemsHans de Goede2015-01-22-4/+130
| | | | | | | | | | | | | | | | | | | | Testing has shown that on sun4i the display backend engine does not have deep enough fifo-s causing flickering / tearing in full-hd mode due to fifo underruns. On sun4i use the display frontend engine to do the dma from memory, as the frontend does have deep enough fifo-s. As added advantage of this is that it results in much better memory bandwidth as it reduces the amount of dram bank switches, for more details see: http://ssvb.github.io/2014/11/11/revisiting-fullhd-x11-desktop-performance-of-the-allwinner-a10.html Note that this changes the pipeline searched for in the simplefb node, we can get away with doing this now, since no kernel has yet shipped with simplefb dtb nodes, and I will make sure to get a simplefb node with the new pipeline into 3.19 before it ships. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* video: sunxi: Hook up SSD2828 with the sunxi video driverSiarhei Siamashka2015-01-22-0/+38
| | | | | | | | | | Convert GPIO names from Kconfig strings into pin numbers for the 'ssd2828_config' struct. Add SSD2828 initialization between enabling the parallel LCD interface and turning on the backlight. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: display: Make lcd display clk phase configurableHans de Goede2015-01-22-6/+1
| | | | | | | | | | | | | | | | | | | | While running some tests with an Olinuxino-A13-Micro + a 7" Olimex LCD module I noticed that the screen flickered. This is caused by the lcd display clk phase reg value being set to 0, where it should be 1 in this setup. This commit adds a Kconfig option for the lcd display clk phase, so that we can set it per board. This defaults to 1, because looking at all the fex files in sunxi-boards, that is by far the most used value. This commit updated the Ippo and MSI Primo73 tablet defconfigs to override the default of 1 with 0, as that is the correct value for those tablets, this keeps the register settings the same as before this commit. The Olinuxino-A13 defconfigs are not updated, changing the register setting for these boards from 0 to 1, this is intentional. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Add support for external DAC enable pinChen-Yu Tsai2015-01-14-0/+14
| | | | | | | | | | The external DAC for VGA output might have either a power or reset control pin that needs to be pulled up, as is the case on the Hummingbird A31. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: video: Add lvds supportHans de Goede2015-01-14-2/+35
| | | | | | | Add support for lvds lcd panels Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Add a hpd_delay parameter to configure hpd delayHans de Goede2015-01-14-4/+5
| | | | | | | | | | | | | In some extreme cases it may be necessary to wait 1.5 seconds or more for a hpd signal to show up (and be able to read edid info), but we do not want to penalize all headless boots with an extra second boot delay, so add a hpd_delay parameter which can be set through the video-mode env. variable. While at it raise the default from 300ms to 500ms as 300 may very well be too low in many cases. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Add VGA output supportHans de Goede2015-01-14-8/+52
| | | | | | | Add support for VGA directly from the sunxi SoC / display engine. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Fallback from HDMI to VGA on boards with VGAHans de Goede2015-01-14-22/+29
| | | | | | | | If a board has no LCD, but does have VGA fallback to VGA when no HDMI cable is connected (unless hpd=0). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Add support for using PORTD hsync/vsync pins with tcon1Hans de Goede2015-01-14-3/+19
| | | | | | | | Add support for using PORTD hsync/vsync pins with tcon1, this is a preparation patch for adding native VGA support. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Use sunxi_lcdc_get_clk_delay to calculate tcon1 delayHans de Goede2015-01-14-3/+3
| | | | | | | | | Use sunxi_lcdc_get_clk_delay to calculate tcon1 delay instead of hardcoding it to 30. We will still end up using 30 for most modes, but for e.g. 800x600 this makes a (small) difference. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Remove sunxi_display.enabled variableHans de Goede2015-01-14-6/+6
| | | | | | | | | Having both a sunxi_display.enabled variable and sunxi_display.monitor == sunxi_monitor_none duplicates state, use sunxi_display.monitor = sunxi_monitor_none when ever we do not have a display. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Add support for VGA via external DACs connected to the LCD pinsHans de Goede2015-01-14-0/+14
| | | | | | | | Add support for external DACs connected to the parallel LCD interface driving a VGA connector, such as found on the Olimex A13 boards. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Enable video on sun8i, which supports LCD but not HDMIHans de Goede2015-01-14-4/+26
| | | | | | | | | | | | | | The A23 (sun8i) only has lcd output support, so allow building the video code without HDMI support for use with the A23. Also the A23 has the same reset bits (and necessity to enable the DRC block) as the sun6i, so enable those bits for sun8i too. Note building without HDMI support is useful for the A13 (sun5i variant) too, as that one does not have HDMI either. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Add lcd output supportHans de Goede2015-01-14-9/+171
| | | | | | | | Add lcd output support, see the new Kconfig entries and doc/README.video for how to enable / configure this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Move sunxi_drc_initHans de Goede2015-01-14-14/+12
| | | | | | | | Move sunxi_drc_init to directly above sunxi_engines_init, to avoid unnecessary #ifdef-ery in later patches. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Modify sunxi_lcdc_pll_set to work with both tcon0 and tcon1Hans de Goede2015-01-14-7/+24
| | | | | | | | | | | | | Modify sunxi_lcdc_pll_set to work with both tcon0 and tcon1, this is a preparation patch for adding lcd support. While at it also swap the divider search order, searching from low to high, as the comment above the code says we should do. In cases where there are multiple solutions this will result in picking a lower pll clock and divider, which is more stable and saves power. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Prepare for lcd supportHans de Goede2015-01-14-32/+70
| | | | | | | | | | | | Refactor sunxi_mode_set into a bunch of helpers, and make it do a switch case on sunxi_display.monitor to decide what to do. Also rename sunxi_lcdc_mode_set to sunxi_lcdc_tcon1_mode_set, as it sets the timings for tcon1, and for lcd support we need a similar function operating on tcon0. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Improve monitor video-mode option handlingHans de Goede2015-01-14-16/+47
| | | | | | | | | | | Add a sunxi_monitor enum and parse the monitor option string into this enum once, rather then doing strcmp-s on it in various places. This also adds checking for it being a valid value. This also adds new "none" and "lcd" values in preparation for lcd support. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: video: Set input sync enableHans de Goede2015-01-14-23/+4
| | | | | | | | | | | | | | | | | | | Add a write to the "unknown" (*) register to enable auto input sync, when initially adding sunxi hdmi output support this magic write from the android kernel code was missed, causing lcdc -> hdmi encoder sync problems. With this write added, we can drop the modesetting retries and the extra delays added to work around these sync problems. With the retries dropped there also is no need to 0 all the enable flags at the beginning of the modeset, as they are initialized to 0 already by engines_init. *) "unknown" is the actual name of this register in the android kernel sources Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Give hotplug-detect (hpd) signal some time to show upHans de Goede2015-01-14-2/+6
| | | | | | | | | | | | | When using a hdmi powered hdmi to vga dongle, and cold booting a sunxi device, the hpd detect code would not see the dongle (until a warm reboot), because the dongle needs some time to boot. Testing has shown that this dongle needs 213ms to respond on a cold boot, so wait up to 300ms for a hpd signal to show up before giving up. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: When using edid use CEA681 extension blocks to select hdmi outputHans de Goede2015-01-14-9/+34
| | | | | | | | | When using edid use CEA681 edid extension blocks to select between dvi and hdmi output formats, so that u-boot will automatically do the right thing. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Add sunxi_hdmi_edid_get_block helper functionHans de Goede2015-01-14-11/+20
| | | | | | | | | Add a sunxi_hdmi_edid_get_block helper function, this is a preparation patch for adding support for parsing EDID extension blocks. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Add hdmi supportHans de Goede2015-01-14-5/+61
| | | | | | | | | | | | | | | | | So far we've been programming the hdmi-encoder to send out dvi data over the hdmi connector. This works well for most devices, including hdmi devices, but not all devices accept dvi data on a hdmi input. Add support for sending proper hdmi data over the hdmi output found on most sunxi boards. This can be turned on by adding monitor=hdmi as option to the video-mode env. variable. A follow up patch will determine whether to send dvi or hdmi automatically when EDID is used. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Add DDC & EDID supportHans de Goede2015-01-14-1/+153
| | | | | | | | | | Add DDC & EDID support and use it to automatically select the native mode of the attached monitor. This can be disabled by adding edid=0 as option to the video-mode env. variable. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Add hpd optionHans de Goede2015-01-14-9/+17
| | | | | | | | | | Allow the user to specify hpd=0 as option in the video-mode env. variable, if hpd is set to 0 then the hdmi output will be brought up even if no cable is connected. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Add support for video-mode environment variableHans de Goede2015-01-14-3/+13
| | | | | | | | | | | | | | | | Add support for the standard video-mode environment variable using the videomodes.c video_get_ctfb_res_modes() helper function. This will allow users to specify the resolution e.g. : setenv video-mode sunxi:video-mode=1280x1024-24@60 saveenv Also make the reserved fb mem slightly larger to allow 1920x1200 to work. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Use video-mode/-timing from videomodesHans de Goede2015-01-14-30/+11
| | | | | | | | | Switch from fb_videomode to ctfb_res_modes and use the predefined videotimings from videomodes.c, rather then defining our own. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Add simplefb supportLuc Verhaegen2014-11-25-0/+41
| | | | | | | | | | | | Add simplefb support, note this depends on the kernel having support for the clocks property which has recently been added to the simplefb devicetree binding. Signed-off-by: Luc Verhaegen <libv@skynet.be> [hdegoede@redhat.com: Use pre-populated simplefb node under /chosen as disussed on the devicetree list] Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>.
* sunxi: video: Add sun6i supportHans de Goede2014-11-25-0/+30
| | | | | | | | | Besided needing the usual sun6i specific ahb1_reset bits poking, it turns out that sun6i also needs the drc to be taken out of reset and clocked even though it is in pass-through mode. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Anatolij Gustschin <agust@denx.de>
* sunxi: video: Add cfb console driver for sunxiLuc Verhaegen2014-11-25-0/+380
This adds a fixed mode hdmi driver for the sunxi platform. The fixed mode is a relatively safe 1024x768, more complete EDID handling is currently not provided. Only HDMI is supported today. This code is enabled when HPD detects an attached monitor. Current config is such that 8MB is shaved off at the top of the RAM. This avoids several memory handling issues, most significant is the fact that on linux on ARM you are not allowed to remap known RAM as IO. A clued in display driver will be able to recycle this reserved RAM in future though. cfbconsole was chosen as it provides the most important functionality: a working u-boot console, allowing for the debugging of certain issues without the need for a UART. Signed-off-by: Luc Verhaegen <libv@skynet.be> [hdegoede@redhat.com: Major cleanups and some small bugfixes] Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Anatolij Gustschin <agust@denx.de> Acked-by: Ian Campbell <ijc@hellion.org.uk>
generated by cgit v1.1 at 2024-11-18 03:23:36 +0000