mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-13 08:27:23 +00:00
72719d2f8a
The STM32 LTDC display controller provides a parallel digital RGB and signals for horizontal, vertical synchronization, Pixel Clock and Data Enable as output to interface directly to a variety of LCD and TFT panels. The LTDC main features are: - 24-bit RGB Parallel Pixel Output, Programmable timings & polarity for HSync, VSync and Data Enable. - 2 layers with Blending, Color Keying, Window position & size, Dithering, Background color, Color Look-Up Table (CLUT). - Supported layer color formats: ARGB8888, RGB888, RGB565, ARGB1555, ARGB4444, L8 CLUT, AL44 & AL88 This LTDC driver: - supports: RGB parallel output with timings & polarity, 1 layer in RGB565. - supports but with hard-coded configurations: blending, window position & size (crop), background color. - does not support yet: rgb888, argb8888, 8-bit clut, dithering. This LTDC driver is compatible with all stm32 platforms with the LTDC IP and has been tested on stm32 f746-disco board. Signed-off-by: Philippe CORNU <philippe.cornu@st.com>
44 lines
1.4 KiB
Text
44 lines
1.4 KiB
Text
#
|
|
# Copyright (C) STMicroelectronics SA 2017
|
|
#
|
|
# Authors: Philippe Cornu <philippe.cornu@st.com>
|
|
# Yannick Fertre <yannick.fertre@st.com>
|
|
#
|
|
# SPDX-License-Identifier: GPL-2.0+
|
|
#
|
|
|
|
menuconfig VIDEO_STM32
|
|
bool "Enable STM32 video support"
|
|
depends on DM_VIDEO
|
|
help
|
|
STM32 supports many video output options including RGB and
|
|
DSI. This option enables these supports which can be used on
|
|
devices which have RGB TFT or DSI display connected.
|
|
|
|
config VIDEO_STM32_MAX_XRES
|
|
int "Maximum horizontal resolution (for memory allocation purposes)"
|
|
depends on VIDEO_STM32
|
|
default 640
|
|
help
|
|
The maximum horizontal resolution to support for the framebuffer.
|
|
This configuration is used for reserving/allocating memory for the
|
|
framebuffer during device-model binding/probing.
|
|
|
|
config VIDEO_STM32_MAX_YRES
|
|
int "Maximum vertical resolution (for memory allocation purposes)"
|
|
depends on VIDEO_STM32
|
|
default 480
|
|
help
|
|
The maximum vertical resolution to support for the framebuffer.
|
|
This configuration is used for reserving/allocating memory for the
|
|
framebuffer during device-model binding/probing.
|
|
|
|
config VIDEO_STM32_MAX_BPP
|
|
int "Maximum bits per pixel (for memory allocation purposes)"
|
|
depends on VIDEO_STM32
|
|
default 16
|
|
help
|
|
The maximum bits per pixel to support for the framebuffer.
|
|
This configuration is used for reserving/allocating memory for the
|
|
framebuffer during device-model binding/probing.
|
|
|