On Fri, Jul 10, 2015 at 07:17:40PM +0800, Jianwei Wang wrote:
This patch add support for Two Dimensional Animation and Compositing Engine (2D-ACE) on the Freescale SoCs.
2D-ACE is a Freescale display controller. 2D-ACE describes the functionality of the module extremely well its name is a value that cannot be used as a token in programming languages. Instead the valid token "DCU" is used to tag the register names and function names.
The Display Controller Unit (DCU) module is a system master that fetches graphics stored in internal or external memory and displays them on a TFT LCD panel. A wide range of panel sizes is supported and the timing of the interface signals is highly configurable. Graphics are read directly from memory and then blended in real-time, which allows for dynamic content creation with minimal CPU intervention.
The features: (1) Full RGB888 output to TFT LCD panel. (2) For the current LCD panel, WQVGA "480x272" is supported. (3) Blending of each pixel using up to 4 source layers dependent on size of panel. (4) Each graphic layer can be placed with one pixel resolution in either axis. (5) Each graphic layer support RGB565 and RGB888 direct colors without alpha channel and BGRA8888 BGRA4444 ARGB1555 direct colors with an alpha channel and YUV422 format. (6) Each graphic layer support alpha blending with 8-bit resolution.
This is a simplified version, only one primary plane, one framebuffer created for fbdev, one crtc, one connector for TFT LCD panel, an encoder.
Signed-off-by: Alison Wang b18965@freescale.com Signed-off-by: Xiubo Li lixiubo@cmss.chinamobile.com Signed-off-by: Jianwei Wang jianwei.wang@freescale.com
Can't find any other use of deprecated functions or legacy code patterns or anything else that we've recently started cleaning up, looks good. No detailed review though (for one I lack hw docs).
Acked-by: Daniel Vetter daniel.vetter@ffwll.ch
Might be good to get some cross-review from some other arm soc drm driver team, then send a pull request to Dave for 4.3.
Cheers, Daniel