I tried to configure 576i output on HDCOMP.  We couldn’t use DVO2 here as EVM or DVR board does not support this mode, due to this we choose HDCOMP for the validation.  Our main intention is to verify the SWMS output and the necessary changes required in the HDVPSS driver to support PAL on HDCOMP or DVO1/2.

 

The HDCOMP is working fine for PAL mode.  I have used two displays, HDCOMP and SD-VENC

Configured the HDCOMP output as 576i (PAL display) 
Set the swMsInstId as SYSTEM_SW_MS_SC_INST_DEIHQ_SC_NO_DEI for SWMS instance connected to HDCOMP display 
Configured the SD output as NTSC 
Set the swMsInstId as SYSTEM_SW_MS_SC_INST_SC5 for SWMS instance connected to SD display 
Input of both the displays are switched between 420SP & 422I data format 
Both HDCOMP & SD displays worked well (NO green patches, No artifacts, No video rolling) 
The above test validates our SWMS outputs and HDVPSS driver changes 
 

To get this working, first of all we need to apply the attached patch on top of hdvpss_01_00_01_36 driver. Steps to apply the patch

Copy HDVENC_PAL.patch into hdvpss_01_00_01_36 directory 
Run “patch -p2 < HDVENC_PAL.patch” 
Please note that this patch is only for testing the PAL output on DVO2, we will make the official release later

Apart from the patch we need to make a couple of changes in RDK to support PAL output on HDCOMP, mainly the changes are in 

 

demos/mcfw_api_demos/mcfw_demo/demo_vcap_venc_vdec_vdis.c – Both HDMI & HDCOMP resolution is set to VSYS_STD_PAL (both are changes because of tiled VENC, no need to change both if VENCs are not tied. This is an application level change, so do the same change in App 
mcfw/src_bios6/links_m3vpss/display/displayLink_drv.c – modify the scan format of SYSTEM_LINK_ID_DISPLAY_0 as FVID2_SF_INTERLACED 
mcfw/src_bios6/links_m3vpss/system/system_dctrl.c – modified the display controller mesh setting and added a new entry for PAL in System_getClk() 
mcfw/src_linux/mcfw_api/ti_vdis.c – Modified the DVO format & scan format as VDIS_DVOFMT_SINGLECHAN and SYSTEM_DF_YUV422SP_UV respectively 
 

I am also attached the original & modified RDK files, so that you will be able to see the exact changes  

Please note that we have done changes to configure HDCOMP output, so appropriate changes needs to be done for DVO2