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path: root/drivers/video
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2016-05-17video: tegra: refuse to bind to disabled dcsStephen Warren
This prevents the following boot-time message on any board where only the first DC is in use, yet the DC's DT node is enabled: stdio_add_devices: Video device failed (ret=-22) (This happens on at least Harmony, Ventana, and likely any other Tegra20 board with display enabled other than Seaboard). The Tegra DC's DT node represents a display controller. It may itself drive an integrated RGB display output, or be used by some other display controller such as HDMI. For this reason the DC node itself is not enabled/disabled in DT; the DC itself is considered a shared resource, not the final (board-specific) display output. The node should instantiate a display output driver only if the rgb subnode is enabled. Other output drivers are free to use the DC if they are enabled and their DT node references the DC's DT node. Adapt the Tegra display drivers' bind() routine to only bind to the DC's DT node if the RGB subnode is enabled. Now that the display driver does the right thing, remove the workaround for this issue from Seaboard's DT file. Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-04-28drivers/video/am335x-fb: Properly point framebuffer behind paletteMartin Pietryka
The DMA was outputting the palette on the screen because the base for the DMA was not after the palette. In addition to that, the ceiling was also too high, this led that the output on the screen was shifted. NOTE: According to the TRM, even in 16/24bit mode a palette is required in the first 32 bytes of the framebuffer. See also: https://e2e.ti.com/support/arm/sitara_arm/f/791/p/234967/834483#834483 "In this mode, the LCDC will assume all information is data and thus you need to ensure that the DMA points to the first pixel of data and not the first entry in the frame buffer which is the beginning of the 512 byte palette." Signed-off-by: Martin Pietryka <martin.pietryka@chello.at> Reviewed-by: Hannes Schmelzer <oe5hpm@oevsv.at> Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at>
2016-04-28drivers/video/am335x-fb: Add support for 16bpp formatMartin Pietryka
To support 16bpp we just need to change the raster_ctrl register accordingly. Also 32bpp mode should work as well, but was not tested. According to the TRM the uppermost byte will be ignored when LCD_TFT_24BPP_UNPACK is set. The switch logic is based on the Linux kernel tilcdc driver: drivers/gpu/drm/tilcdc/tilcdc_crtc.c: lines 407 through 419 (kernel was checked out at commit: bcc981e9ed8) Signed-off-by: Martin Pietryka <martin.pietryka@chello.at> Reviewed-by: Hannes Schmelzer <oe5hpm@oevsv.at> Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at>
2016-04-25drivers/video/am335x-fb: Fix bits for LCD_PALMODE_RAWDATA definitionMartin Pietryka
According to the TRM you have to set bits [21:20] to 0b10 for RAW mode, so (0x10 << 20) is obviously wrong here. Signed-off-by: Martin Pietryka <martin.pietryka@chello.at>
2016-03-27Revert "pxa_lcd: make driver cache-aware"Tom Rini
This reverts commit 59deb7fe8d23c8ec2b659d99323ec4a2ec19148a. Signed-off-by: Tom Rini <trini@konsulko.com>
2016-03-27Revert "pxa_lcd: invert colors for Zipit Z2 to get white on black palette"Tom Rini
This reverts commit 3bc8ffd9cb774feceefc7bdebe9353fcea071343. Signed-off-by: Tom Rini <trini@konsulko.com>
2016-03-27pxa_lcd: make driver cache-awareVasily Khoruzhick
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
2016-03-27pxa_lcd: invert colors for Zipit Z2 to get white on black paletteVasily Khoruzhick
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
2016-03-27zipitz2: enable LCD rotationVasily Khoruzhick
z2's screen is rotated by 270 degrees Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Acked-by: Marek Vasut <marex@denx.de>
2016-03-27bcm2835 video: Map fb as cachedAlexander Graf
The bcm2835 frame buffer is in RAM, so we can easily map it as cached and gain all the glorious performance boost that brings with it. Signed-off-by: Alexander Graf <agraf@suse.de> Tested-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Stephen Warren <swarren@wwwdotorg.org>
2016-03-23sunxi: Configure only LVDS pins instead of all LCD pins when LVDS interface ↵Lawrence Yu
selected The behavior before this patch would attempt to configure the mux setting for pins 0 to 27 on PORTD to all be setting 3 for LVDS. The LVDS interface actually only uses pins 18 to 27 and not pins 0 to 27 as in the parallel LCD interface. This patch restricts the configuration to only the relevant pins 18 to 27 on PORTD. This was tested on a sun8i A33 tablet with an LVDS screen. MMC1 has the capability to use pins 2 to 7 on PORTD and the mux on those pins was being inadvertently set to setting 3 for MMC functionality which this patch corrects. Signed-off-by: Lawrence Yu <lyu@micile.com> [hdegoede@redhat.com: Only apply this change to A23 / A33] Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-03-17x86: broadwell: Add video supportSimon Glass
Add a video driver for Intel's broadwell integrated graphics controller. This uses a binary blob for most init, with the driver just performing a few basic tasks. This driver supports VESA as the mode-setting mechanism. Since most boards don't support driver model yet with VESA, a special case is added to the Kconfig for broadwell. Eventually all boards will use driver model and this can be removed. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-17video: Allow simple-panel to be used without regulatorsSimon Glass
At present simple-panel requires regulator support and will not build without it. But some panels do not have a power supply, or at least not one that can be controlled. Update the implementation to cope with this. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de>
2016-03-17x86: Move asm/arch-coreboot/tables.h to a common placeBin Meng
Move asm/arch-coreboot/tables.h to asm/coreboot_tables.h so that coreboot table definitions can be used by other x86 builds. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-03-15Merge branch 'master' of git://git.denx.de/u-boot-videoTom Rini
2016-03-14video: ipu: avoid overflow issuePeng Fan
Multiplication, as "clk->parent->rate * 16" may overflow. So use do_div to avoid such issue. Signed-off-by: Peng Fan <van.freenix@gmail.com> Signed-off-by: Sandor Yu <sandor.yu@nxp.com> Cc: Anatolij Gustschin <agust@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com>
2016-03-14dm: Use uclass_first_device_err() where it is usefulSimon Glass
Use this new function in places where it simplifies the code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-14rockchip: video: Add LVDS support in vop driverJacob Chen
LVDS have a different display out mode, add code to get right flag. The vop_ip decide display device and the remote_vop_id decide which vop was being used. So we should use the remote_vop_id to set DCLK_VOP. Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-03-14rockchip: video: Add a display driver for rockchip LVDSJacob Chen
Some Rockchip SoCs support LVDS output. Add a display driver for this so that these displays can be used on supported boards. Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-03-14dm: video: Add a operation to display uclassJacob Chen
The current display class only allow to get timing from edid. So add a operation to get timing directly from driver. In driver, I will use fdtdec_decode_display_timing to get timing. Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-02-22video: Add S3C24xx framebuffer supportMarek Vasut
Add basic framebuffer driver for the S3C24xx family of CPUs. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Anatolij Gustschin <agust@denx.de> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Vladimir Zapolskiy <vz@mleia.com> V2: Keep the Makefile sorted. Acked-by: Anatolij Gustschin <agust@denx.de>
2016-02-22video: freetype: Fix a memory leak with a bad parameterSimon Glass
Make sure to free memory used when the scale facture is incorrect. Reported-by: Coverity (CID: 24068) Signed-off-by: Simon Glass <sjg@chromium.org>
2016-02-22video: truetype: Fix a memory leak on errorSimon Glass
When the resolution is not supported we should free the memory we don't plan to use. Reported-by: Coverity (CID: 135127) Signed-off-by: Simon Glass <sjg@chromium.org>
2016-02-16tegra: video: Move LCD driver to use the DM PWM driverSimon Glass
Use the driver-model PWM driver in preference to the old code. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: video: Move all fdt-decoding into a single functionSimon Glass
Join the two functions which decode the device tree and put them in the ofdata_to_platdata() method. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: video: Move LCD enums into the driverSimon Glass
There is no need to have these in a separate file as they are not referenced from anywhere else. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: video: Remove the static variablesSimon Glass
We can move the static variables into the driver-private data. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: video: Convert tegra20 LCD driver to driver modelSimon Glass
Move this driver over to use driver model. This involves rearranging the code somewhat. The effect is that everything is run from the probe() method. Boards which use this are fixed up, but only seaboard is tested. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: video: Merge the two config structures togetherSimon Glass
We have a structure for the display panel and another for the controller. There is some overlap between them. Merge them to simplify the driver. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: video: Move the check for CONFIG_OF_CONTROL to KconfigSimon Glass
We can check this in Kconfig now. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: video: Merge the display driver into one fileSimon Glass
At present we have code in arch/arm and code in drivers/video. Move it all into drivers/video since it is a display driver and our current approach is to put all driver code in drivers/. Make a few functions static now that they are not used outside the file. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: video: Rename CONFIG_VIDEO_TEGRA to CONFIG_VIDEO_TEGRA20Simon Glass
This option refers only to the tegra20 video driver, so name it as such to avoid confusion with tegra124. Also move this option to Kconfig. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: nyan-big: Move the LCD driver to driver modelSimon Glass
Adjust the driver to use driver model. The SOR becomes a bridge device. We use the normal simple_panel driver to handle the display itself. We also need to enable some options such as regulators, PWMs and DM_VIDEO itself. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16tegra: lcd: Merge tegra124-lcd.c into display.cSimon Glass
There isn't a lot of benefit of have two separate files. With driver model the code needs to be in the same driver, so it's better to have it in the same file. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-16dm: video: Flush the cache after a puts()Simon Glass
This helps keep the display consistent. puts() is used when printing the prompt, so is a useful way to make sure the current display contents is visible. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-02-11Merge branch 'master' of git://git.denx.de/u-boot-videoTom Rini
2016-02-11dm: video: Add a temporary work-around for old stdout varSimon Glass
Boards with a saved environment may use 'lcd' in their stdout environment variable, expecting that this will enable output to the LCD. When the board moves to use driver model for video, this will no-longer work. Add a work-around to fix this. A warning messages is printed, and we will remove the work-around at the end of 2016. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Tested-by: Stephen Warren <swarren@nvidia.com>
2016-02-06video: bcm2835: use bus_to_phys() on FB addressStephen Warren
The FB address is generated by the firmware running on the GPU/VideoCore and is a "bus" address. This address is the other side of an IOMMU from the ARM upon which U-Boot is running. Use bus_to_phys() to convert this to an ARM physical address. Without this, U-Boot seems to work just fine, but once the Linux kernel boots on an RPi2, accessing the FB memory often causes a hard system hang. This is related to: 122426d46e31 ARM: bcm2835: use phys_to_bus() for mbox 5c0beb5c58c8 usb: dwc2: use phys_to_bus/bus_to_phys 79340db7f1f6 ARM: bcm2835: implement phys_to_bus/bus_to_phys Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2016-02-06video: Use 'int' for loop variables instead of shortSimon Glass
Using short doesn't save anything and is confusing when the width and height variables are ulong. This may fix Coverity CID134902 but I doubt it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-01-30video: sandbox: Allow selection of font size and console nameSimon Glass
For testing it is useful to be able to select the font size and the console driver for sandbox. Add this information to platform data and copy it to the video device when needed. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30video: Allow selection of the driver and font sizeSimon Glass
Provide a way for the video console driver to be selected. This is controlled by the video driver's private data. This can be set up when the driver is probed so that it is ready for the video_post_probe() method. The font size is provided as well. The console driver may or may not support this depending on its capability. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Anatolij Gustschin <agust@denx.de>
2016-01-30video: Add the Cantoraone decorative fontSimon Glass
This font is a little more ornate than normal. Example uses are on security screens where a feeling of formality is required. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30video: Add the Rufscript handwriting fontSimon Glass
This can be used when a a friendly 'hand-writing' font is needed. It helps to make the device feel familiar. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30video: Add the AnkaCoder mono-spaced fontSimon Glass
This can be used when a mono-space font is needed, but the console font is too small (such as with high-DPI displays). Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30video: Add the Nimbus sans fontSimon Glass
This provides a good-looking font for user prompts. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30video: Add a console driver that uses TrueType fontsSimon Glass
The existing 8x16 font is adequate for most purposes. It is small and fast. However for boot screens where information must be presented to the user, the console font is not ideal. Common requirements are larger and better-looking fonts. This console driver can use TrueType fonts built into U-Boot, and render them at any size. This can be used in scripts to place text as needed on the display. This driver is not really designed to operate with the command line. Much of U-Boot expects a fixed-width font. But to keep things working correctly, rudimentary support for the console is provided. The main missing feature is support for command-line editing. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Anatolij Gustschin <agust@denx.de>
2016-01-30video: Provide a backspace methodSimon Glass
With proportional fonts the vidconsole uclass cannot itself erase the previous character. Provide an optional method so that the driver can handle this operation. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30video: Provide a signal when a new console line is startedSimon Glass
When we start a new line (due to the user pressing return), signal this to the driver so that it can flush its buffer of character positions. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30video: Provide a left margin for the text consoleSimon Glass
Allow the left margin to be set so that text does not have to be right up against the left side. On some panels this makes it hard to read. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30video: Handle the 'bell' characterSimon Glass
This can be sent when to many characters are entered. Make sure it is ignored and does not cause a character to be displayed. Signed-off-by: Simon Glass <sjg@chromium.org>