Device Audio codec hwC0D0: Realtek and Device Audio codec hwC0D3: Intel on HDA Intel sound

[Lucas]

Dear All.

Recently I checked powertop and the first lines are:
             100.0%                      Device         Audio codec hwC0D0: Realtek
             100.0%                      Device         Audio codec hwC0D3: Intel

I remember that it was only Intel codec.

Do I really need  - Audio codec hwC0D0: Realtek ?
lspci:
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio 
Controller (rev 05)
...
         Kernel driver in use: snd_hda_intel
         Kernel modules: snd-hda-intel

uname:
Linux 3.1.0-0.rc10.git0.1.fc16.x86_64 #1 SMP Wed Oct 19 05:02:17 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux


Thanks in advance.