[U-Boot] iMX6 IPU display interface definition

[Eric Nelson <eric.nelson@boundarydevices.com>]

Hi Andreas,

On 03/20/2014 01:41 AM, Andreas Geisreiter wrote:
> Hi,
>
> we are working at the moment with i.MX6DL. I tried to setup new
> display support (RGB interface) in Bootloader U-Boot. There is a
> structure available, where I can define all the display timings:
> 	.mode	= {
> 		.name           = "wvga-rgb",
> 		.refresh        = 57,
> 		.xres           = 800,
> 		.yres           = 480,
> 		.pixclock       = 33260,
> 		.left_margin    = 42,
> 		.right_margin   = 86,
> 		.upper_margin   = 10,
> 		.lower_margin   = 33,
> 		.hsync_len      = 128,
> 		.vsync_len      = 2,
> 		.sync           = 0,
> 		.vmode          = FB_VMODE_NONINTERLACED
>
> But there I miss the edge definition of the pixel clock and data
> enable.
 >

The sync field is used to describe these characteristics,
and some of the flags are listed in drivers/video/mxcfb.h (FB_SYNC*)
and others in drivers/video/videomodes.h (FB_SYNC_VERT_HIGH_ACT).

Regards,


Eric