Does the DM8168 HDVPSS GRPX planes support BGRA_8888?

Mark Leonhardt

I am currently using the DVR RDK 3.5 on a DM8168 Rev. G EVM which I believe has CPU revision 1.1.

In the function "vps_grpx_set_format" from the file: DVRRDK_03.50.00.05\ti_tools\linux_lsp\kernel\linux-dvr-rdk\drivers\video\ti81xx\vpss\grpx.c , there is a check against the cpu revision for and data format to verify the format is supported:

if (v_pdata->cpu == CPU_DM816X) {

if (vps_isnewdata(df) && (omap_rev() < TI8168_REV_ES2_0)) {

VPSSERR("(%d) - unsupport format %d\n",

The functions "vps_isnewdata" lists many formats including FVID2_DF_BGRA32_8888 as being "new". Can you confirm this pixel format is CPU revisions above 2.0?

Thanks,

- Mark

over 11 years ago

0 Renjith Thomas over 11 years ago

Guru 31670 points

Mark,

You can get the errata of DM8168 for any such issues in the previous versions.

http://www.ti.com/product/tms320dm8168

0 Mark Leonhardt over 11 years ago in reply to Renjith Thomas

Prodigy 90 points

Renjith,

I have already searched the errata for the DM8168. There is no mention of additional pixel formats available for VPDMA on revision 2.0+

Thanks,

- Mark

0 Renjith Thomas over 11 years ago in reply to Mark Leonhardt

Guru 31670 points

Mark,

According to the HDVPSS documentation there is no support for BGRA format. I'm not sure whether the documentation is applicable to revision 2.0. So, as you have guessed, this might be added to revisions 2.0.

0 Mark Leonhardt over 11 years ago in reply to Renjith Thomas

Prodigy 90 points

Renjith,

I agree, the documentation doesn't seem to indicate support for pixel formats other than RGB and RGBA, however the code seems to indicate it is possible. I have recently gained access to some Rev 2.1 silicon so I'll be testing the support for BGRA soon.

Thanks,

- Mark

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Does the DM8168 HDVPSS GRPX planes support BGRA_8888?