Commit graph

135 commits

Author SHA1 Message Date
Simon Glass
e655003384 video: Rename CONFIG_SYS_VIDEO_LOGO_MAX_SIZE
This option should not have the SYS_ in it. Drop it so it fits in with the
other video options.

Also simplify the alignment code in gunzip_bmp(), since malloc() always
returns a 32-bit-aligned pointer.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-30 20:07:16 +01:00
Simon Glass
4adc28ebc6 Convert CONFIG_HIDE_LOGO_VERSION to Kconfig
This converts the following to Kconfig:
   CONFIG_HIDE_LOGO_VERSION

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-30 20:07:16 +01:00
Simon Glass
988d19dd5b video: Split SPLASH_SCREEN_ALIGN from bmp command
The bmp command already has a way to centre the image. Using this CONFIG
option to also centre it makes it impossible to control where images are
placed on the screen. Drop the extra check.

Simplify the Kconfig file we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-30 20:07:16 +01:00
Simon Glass
31efa25095 video: Refactor to allow more than one font size
At present the truetype console supports only a single font and size. It
is useful to be able to support different combinations. As a first step,
move the metrics into there own structure and allow having multiple
metrics.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-30 20:01:40 +01:00
Simon Glass
820b5894c1 video: Move and rename DM_HX8238D option
This is actually a panel, not a video device. Rename the option, move it
into the right place and make it depend on PANEL.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-30 20:01:40 +01:00
Simon Glass
f029f90e7d video: Move the console commands to cmd/
Move these commands and the implementation to the cmd/ directory, which is
where most commands are kept.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
[agust: keep vidconsole_position_cursor() in vidconsole uclass]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
2022-10-30 19:55:22 +01:00
Tom Rini
4d2cab33d4 video: Migrate exynos display options to Kconfig
Following how it's done for the majority of drivers, add a new
VIDEO_EXYNOS option and Kconfig file under drivers/video/exynos and list
the current options there.

Cc: Anatolij Gustschin <agust@denx.de>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2022-06-28 17:04:38 -04:00
Simon Glass
2cbc1c019b video: Convert CONFIG_VIDEO_BCM2835 to Kconfig
This converts the following to Kconfig:
   CONFIG_VIDEO_BCM2835

This is the final ad-hoc CONFIG_VIDEO_... to convert.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Matthias Brugger <mbrugger@suse.com>
2022-03-28 20:28:56 +02:00
Simon Glass
77f46f0607 video: fsl: colibri_vf: Drop FSL DCU driver
This does not use driver model and is more than two years past the
migration date. Drop it.

It can be added back later if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-03-28 20:18:07 +02:00
Simon Glass
1fa43cad86 video: Drop references to CONFIG_VIDEO et al
Drop the Kconfigs which are not used and all references to them. In
particular, this drops CONFIG_VIDEO to avoid confusion and allow us to
eventually rename CONFIG_DM_VIDEO to CONFIG_VIDEO.

Also drop the prototype for video_get_info_str() which is no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
2022-03-28 20:17:07 +02:00
Simon Glass
814dd92bdc video: Drop cfg_console
The non-driver model video support was removed two years ago. Drop this
driver, which is only used by nokia_rx51.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-03-28 20:14:24 +02:00
Tom Rini
3e2ea3278e Convert CONFIG_LCD_INFO et al to Kconfig
This converts the following to Kconfig:
   CONFIG_LCD_INFO
   CONFIG_LCD_LOGO
   CONFIG_LCD_INFO_BELOW_LOGO
   CONFIG_LCD_IN_PSRAM

Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-25 12:01:15 +00:00
Tom Rini
286c4531ad Convert CONFIG_ATMEL_LCD et al to Kconfig
This converts the following to Kconfig:
   CONFIG_ATMEL_LCD
   CONFIG_ATMEL_LCD_BGR555
   CONFIG_ATMEL_LCD_RGB565
   CONFIG_GURNARD_SPLASH

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-03-25 12:01:15 +00:00
Michal Simek
98cacab765 video: Add skeleton driver for ZynqMP Display port driver
The reason for this driver is to use call power management driver to enable
it in PMUFW. There is missing functionality now but should be added in
near future.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/598cb9515bbabc803f72e287464e3d107cd106a3.1645627920.git.michal.simek@xilinx.com
2022-03-09 12:35:49 +01:00
Michal Simek
25a5fa1c4c video: Add missing dependency for DM_GPIO
Seps driver also requires DM_GPIO to be enabled.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/da8c25c19e5c723ed16a2a6b8494dfb967328567.1643960212.git.michal.simek@xilinx.com
2022-02-15 13:05:34 +01:00
Simon Glass
7a8555d871 video: Show the U-Boot logo by default
Enable this for boards with a display, unless they are using the SPLASH
feature.

This shows a U-Boot logo on boards with a display, which seems like a
useful thing.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-26 23:33:11 +01:00
Simon Glass
84e63abfff video: Support showing the U-Boot logo
Show the U-Boot logo by default. This is only 7KB in size so seems like
a useful default for boards that enable a display.

If SPLASH_SCREEN is enabled, it is not enabled by default, so as not to
conflict with that feature.

Also disable it for tests, since we don't want to complicate the output.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-26 23:32:46 +01:00
Simon Glass
64cfeda8ae video: Convert CONFIG_VIDEO_LOGO to Kconfig
This converts the following to Kconfig:
   CONFIG_VIDEO_LOGO

Note that this option depends on CONFIG_DM_VIDEO now, since cfb_console is
deprecated. The only relevant code is now in splash.c

Drop the check for DM_VIDEO in that file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-26 23:24:46 +01:00
Simon Glass
1834c081d3 efi: Add video support to the app
The current EFI video driver only works when running in the stub. In that
case the stub calls boot services (before jumping to U-Boot proper) and
copies the graphics info over to the efi table. This is necessary because
the stub exits boot services before jumping to U-Boot.

The app maintains access to boot services throughout its life, so does not
need to do this. Update the driver to support calling boot services
directly.

Enable video output for the app. Note that this uses the
EFI_GRAPHICS_OUTPUT_PROTOCOL protocol, even though it mentions vesa.

A sample qemu command-line for this case is:

   qemu-system-x86_64 -bios /usr/share/edk2.git/ovmf-ia32/OVMF-pure-efi.fd
   -drive id=disk,file=try.img,if=none,format=raw -nic none
   -device ahci,id=ahci -device ide-hd,drive=disk,bus=ahci.0

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-11-07 18:36:55 +01:00
Samuel Holland
4d9958b642 sunxi: gpio: Remove name_to_gpio macro
This clarifies which callers must be updated to complete the DM_GPIO
conversion.

The only remaining caller of name_to_gpio in generic code is inside the
!DM_GPIO block in cmd/gpio.c. DM_GPIO is always selected on sunxi, so
that code cannot be reached. And after this commit, there are only two
remaining implementations of name_to_gpio.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-11 10:46:44 +01:00
Anatolij Gustschin
79c05335a9 video: move MXS to Kconfig
Move CONFIG_VIDEO_MXS from board headers to Kconfig
and drop it from obsolete cfb_console driver.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
2021-10-09 19:50:03 +02:00
Michal Simek
b4c2c151b1 Kconfig: Remove all default n/no options
default n/no doesn't need to be specified. It is default option anyway.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[trini: Rework FSP_USE_UPD portion]
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-08-31 17:47:49 -04:00
Andre Przywara
845d71ce99 video: Hitachi panel: Drop bogus dependency on CONFIG_VIDEO
The Hitachi tx18d42vm LCD panel driver is really just initialising the
device, using bitbanged SPI, during operation there is nothing to do.
This makes the driver self contained, so drop the bogus dependency on
the legacy CONFIG_VIDEO.

This avoids the warning when building Chuwi_V7_CW0825_defconfig, since
we switched to DM_VIDEO recently.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-08-01 21:43:48 +02:00
Stephan Gerhold
21a151a79d video: Add simple driver for ST-Ericsson MCDE with pre-configured display
The U-Boot port for ST-Ericsson Ux500 is currently only used on the
"stemmy" board, where U-Boot runs after firmware that already sets up
a boot splash screen. This means that the display is already on
and we can just continue using it for U-Boot.

Add a simple driver that simplifies this by reading the display
configuration (e.g. screen size, bpp) from the hardware registers.

It also checks the configured "source synchronization" - for some
displays (usually DSI command mode displays) we need to explicitly
trigger a software sync. This is done through the video_sync()
callback that triggers the sync and wait for completion.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-01 21:40:51 +02:00
Asherah Connor
1bed576d41 video: SIMPLE_PANEL depends on DM_GPIO
SIMPLE_PANEL currently only depends on PANEL && BACKLIGHT, but the code
makes references to dm_gpio_set_value and gpio_request_by_name.  These
are defined in drivers/gpio/gpio-uclass.c, so a dependency on DM_GPIO
corrects these link errors:

aarch64-linux-gnu-ld.bfd: drivers/built-in.o: in function `simple_panel_set_backlight':
/home/kameliya/u-boot/drivers/video/simple_panel.c:42: undefined reference to `dm_gpio_set_value'
aarch64-linux-gnu-ld.bfd: drivers/built-in.o: in function `simple_panel_enable_backlight':
/home/kameliya/u-boot/drivers/video/simple_panel.c:27: undefined reference to `dm_gpio_set_value'
aarch64-linux-gnu-ld.bfd: drivers/built-in.o: in function `simple_panel_of_to_plat':
/home/kameliya/u-boot/drivers/video/simple_panel.c:72: undefined reference to `gpio_request_by_name'

This issue is only exposed if you have a board which enables
CONFIG_DM_VIDEO without CONFIG_DM_GPIO; so far, none do, but soon a QEMU
board may.

Signed-off-by: Asherah Connor <ashe@kivikakk.ee>
2021-04-10 16:50:07 +02:00
Simon Glass
19987c9834 x86: video: Allow coreboot video to be used on any x86 board
When booting from coreboot we need this driver for the video to work.
Update the driver to be usable on any board.

The driver disables itself if it sees that is not booted from coreboot.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-27 15:04:30 +13:00
Moses Christopher
0f425612c8 drivers: video: Add Support for Himax HX8238D Panel
* SPI based initialization for HX8238D
* Resolution: 320x240
* Color-Mode: RGB

* Initial Work is done by Sjoerd Simons
  https://gitlab.apertis.org/packaging/u-boot/-/blob\
  /5f259720e3e64965d50da89a841ad6eb256a47df/debian/patches\
  /apertis/powertools/0005-video-Add-Himax-HX8238-D-driver.patch

* Tested on Bosch Guardian Board

Cc: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Moses Christopher <BollavarapuMoses.Christopher@in.bosch.com>
2021-02-19 23:38:06 +01:00
Dario Binacchi
196947b103 Replace video_uc_platdata with video_uc_plat
The video_uc_platdata structure no longer exists. It has been renamed
video_uc_plat.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
2021-02-19 22:45:47 +01:00
Marcin Juszkiewicz
9a3122f769 Kconfig: simple panel requires backlight
During build of simple panel driver backlight is needed so let's enable
it:

aarch64-linux-gnu-ld.bfd: drivers/built-in.o: in function `simple_panel_set_backlight':
u-boot/drivers/video/simple_panel.c:43: undefined reference to `backlight_set_brightness'
aarch64-linux-gnu-ld.bfd: drivers/built-in.o: in function `simple_panel_enable_backlight':
u-boot/drivers/video/simple_panel.c:28: undefined reference to `backlight_enable'

Signed-off-by: Marcin Juszkiewicz <marcin@juszkiewicz.com.pl>
2021-01-16 11:58:49 -05:00
Tom Rini
795f8fd0b5 - sync amlogic GX & AXG DT to Linux 5.10
- Add new MESON_EE driver support for GXBB & AXG
 - Add support for Libretech-CC v2, Wetek Core2, Beelink GT-King/Pro boards
 - add driver for TDO tl070wsh30 panel driver
 - meson: isolate loading of socinfo
 - Add soc_rev to environment
 - Enable G12A support for saradc
 - Add correct mmcdev on VIM3(L) & Odroid-N2(C4)
 - Read MAC from fuses for VIM3 & VIM3L boards
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Merge tag 'u-boot-amlogic-20210112' of https://gitlab.denx.de/u-boot/custodians/u-boot-amlogic

- sync amlogic GX & AXG DT to Linux 5.10
- Add new MESON_EE driver support for GXBB & AXG
- Add support for Libretech-CC v2, Wetek Core2, Beelink GT-King/Pro boards
- add driver for TDO tl070wsh30 panel driver
- meson: isolate loading of socinfo
- Add soc_rev to environment
- Enable G12A support for saradc
- Add correct mmcdev on VIM3(L) & Odroid-N2(C4)
- Read MAC from fuses for VIM3 & VIM3L boards
2021-01-13 07:32:02 -05:00
Dario Binacchi
260cbc9af2 video: omap: move drivers to 'ti' directory
Add drivers/video/ti/ folder and move all TI's code in this folder for
better maintenance.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
2021-01-12 10:59:04 +05:30
Neil Armstrong
c823f2438c video: add TDO tl070wsh30 panel driver
This adds support for the TDO TL070WSH30 TFT-LCD panel module.
The panel has a 1024×600 resolution and uses 24 bit RGB per pixel.
It provides a MIPI DSI interface to the host, a built-in LED backlight
and touch controller.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2021-01-11 14:59:54 +01:00
Michal Simek
b66d7af41f video: seps525: Add seps525 SPI driver
Add support for the WiseChip Semiconductor Inc. (UG-6028GDEBF02) display
using the SEPS525 (Syncoam) LCD Controller. Syncoam Seps525 PM-Oled is RGB
160x128 display. This driver has been tested through zynq-spi driver.

ZynqMP> load mmc 1 100000 rainbow.bmp
61562 bytes read in 20 ms (2.9 MiB/s)
ZynqMP> bmp info 100000
Image size    : 160 x 128
Bits per pixel: 24
Compression   : 0
ZynqMP> bmp display 100000
ZynqMP> setenv stdout vidconsole

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-01-05 11:54:53 +01:00
Anatolij Gustschin
9dec5a0ea1 nokia_rx51: disable obsolete VIDEO config
Disable VIDEO config to fix DM_VIDEO conversion
deadline warning.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2020-10-26 20:55:51 +01:00
Anatolij Gustschin
8c9940d5ec eb_cpu5282: fix CONFIG_DM_VIDEO build warnings
Remove CONFIG_VIDEO dependency to fix board removal warnings.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Jens Scharsig <esw@bus-elektronik.de>
2020-10-26 20:55:29 +01:00
Patrick Delaunay
8fc78fc73b configs: migrate CONFIG_BMP_16/24/32BPP to defconfigs
Done with:
./tools/moveconfig.py BMP_16BPP BMP_24BPP BMP_32BPP

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-18 15:27:01 +02:00
Patrick Delaunay
f9a48654ee configs: migrate CONFIG_VIDEO_BMP_RLE8 to defconfigs
Done with:
./tools/moveconfig.py VIDEO_BMP_RLE8

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-18 15:26:14 +02:00
Patrick Delaunay
0ed6c0f9cb configs: migrate CONFIG_VIDEO_BMP_GZIP to defconfigs
Done with:
./tools/moveconfig.py VIDEO_BMP_GZIP

The 3 suspicious migration because CMD_BMP and SPLASH_SCREEN
are not activated in these defconfigs:
- trats_defconfig
- s5pc210_universal_defconfig
- trats2_defconfig

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-18 15:25:28 +02:00
Simon Glass
35bd70c510 Convert CONFIG_SPLASH_SCREEN et al to Kconfig
This converts the following to Kconfig:
   CONFIG_SPLASH_SCREEN
   CONFIG_SPLASH_SCREEN_ALIGN
   CONFIG_SPLASHIMAGE_GUARD
   CONFIG_SPLASH_SOURCE

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-23 13:43:10 -04:00
Stefan Bosch
e1e96ba6a2 video: add nexell video driver (display/video driver)
Changes in relation to FriendlyARM's U-Boot nanopi2-v2016.01:
- nexell_display.c: Changed to DM, CONFIG_FB_ADDR can not be used
  anymore because framebuffer is allocated by video_reserve() in
  video-uclass.c. Therefore code changed appropriately.
- '#ifdef CONFIG...' changed to 'if (IS_ENABLED(CONFIG...))' where
  possible (and similar).
- livetree API (dev_read_...) is used instead of fdt one (fdt...).

Signed-off-by: Stefan Bosch <stefan_b@posteo.net>
2020-07-29 08:43:40 -04:00
Simon Glass
551ca0e647 x86: video: Support copy framebuffer with probed devices
For PCI video devices that are not mentioned in the devicetree, U-Boot
does not bind a driver before relocation, since PCI is not fully probed
at that point. Furthermore it is possible for the video device to be on
a secondary bus which is not even scanned.

This is fine if the framebuffer is allocated in fixed memory, as it
normally is on x86. But when using this as a copy framebuffer, we also
need U-Boot to allocate its own cached framebuffer for working in. Since
the video driver is never bound before relocation, the framebuffer size
is never set and U-Boot does no allocation.

Add a new CONFIG option to reserve 16MB of memory for this eventuality.
This allows vesa devices to use the copy framebuffer.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09 12:33:24 +08:00
Simon Glass
9beac5daf7 video: Add support for copying to a hardware framebuffer
Some architectures use a cached framebuffer and flush the cache as needed
so that changes are visible. This is supported by U-Boot.

However x86 uses an uncached framebuffer with a 'write-combining' feature
to speed up writes.  Reads are permitted but they are extremely expensive.

Unfortunately, reading from the frame buffer is quite common, e.g. to
scroll it. This makes scrolling very slow.

Add a new feature which supports copying modified parts of the frame
buffer to the uncached hardware buffer. This speeds up scrolling by at
least 10x on x86 so the extra complexity cost seems worth it.

As a starting point, add the Kconfig, update the video structures to keep
track of the buffer and add a function to do the copy.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2020-07-09 12:33:24 +08:00
Patrick Delaunay
27b5b9ec93 video: restore CONFIG_VIDCONSOLE_AS_LCD as boolean
This patch restores CONFIG_VIDCONSOLE_AS_LCD as boolean
and introduce a separate sting as CONFIG_VIDCONSOLE_AS_NAME
to search this string in stdout used as videoconsole.

This patch avoid issue with board defconfig or code expecting
CONFIG_VIDCONSOLE_AS_LCD as boolean.

Fixes: 22b897a123 ("video: extend stdout video console work-around for 'vga'")
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-07-06 16:30:00 -04:00
Tom Rini
a60becc8c7 Convert CONFIG_ATMEL_HLCD to Kconfig
This converts the following to Kconfig:
   CONFIG_ATMEL_HLCD

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-06-26 10:29:04 -04:00
Tom Rini
0735ac8522 Convert CONFIG_AM335X_LCD to Kconfig
This converts the following to Kconfig:
   CONFIG_AM335X_LCD

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-06-26 10:29:04 -04:00
Anatolij Gustschin
22b897a123 video: extend stdout video console work-around for 'vga'
cfb_console driver uses 'vga' console name and we still have board
environments defining this name. Re-use existing DM_VIDEO work-
around for console name to support 'vga' name in stdout environment.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Soeren Moch <smoch@web.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2020-06-18 19:30:14 +02:00
Anatolij Gustschin
e26e520046 video: make backlight and panel drivers optional
Not all boards use these drivers, so allow to disable them to fix
building boards with U-Boot binary image size restrictions.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-06-18 19:28:36 +02:00
Anatolij Gustschin
39b95556f9 video: make vidconsole commands optional
Converting some boards to DM_VIDEO results in build breakage due
to increased code size. Make video console specific commands
optional to reduce binary size.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-06-18 19:26:54 +02:00
Trevor Woerner
18138ab203 rename symbol: CONFIG_TEGRA -> CONFIG_ARCH_TEGRA
Have this symbol follow the pattern of all other such symbols.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-15 14:47:35 -04:00
Dario Binacchi
96b109ba74 video: omap: add support for DM/DTS
Update the driver to support the device tree and the driver model.
Timings and panel parameters are now loaded from the device tree.

The DM code replaces the am335x_lcdpanel structure with
tilcdc_panel_info taken from the linux kernel, as well the management
of additional parameters not covered in the legacy code. In addition,
the am335x_lcdpanel structure contains parameters and operations that
were probably a requirement of the board for which this driver was
developed and which, however, were not developed in the linux kernel.
All this led to rewrite th DM controller initialization code, except
for the pixel clock setting that is executed in a function created in a
previous patch with code taken from the legacy am335xfb_init.

The patch has been tested on a custom board with u-boot 2018.11-rc2 and
the following device-tree configuration:

	panel {
		compatible = "ti,tilcdc,panel";
		pinctrl-names = "default";
		pinctrl-0 = <&lcd_enable_pins>;
		enable-gpios = <&gpio0 31 0>;
		backlight = <&backlight>;
		status = "okay";
		u-boot,dm-pre-reloc;
		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>;
			timing0: 800x480 {
				hactive         = <800>;
				vactive         = <480>;
				hback-porch     = <46>;
				hfront-porch    = <210>;
				hsync-len       = <20>;
				vback-porch     = <23>;
				vfront-porch    = <22>;
				vsync-len       = <10>;
				clock-frequency = <33000000>;
				hsync-active    = <0>;
				vsync-active    = <0>;
			};
		};
	};

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Tested-by: Dario Binacchi <dariobin@libero.it>
2020-03-03 13:08:14 +05:30