On Thu, Jan 12, 2012 at 09:33:34AM -0800, Keith Packard wrote:
> On Tue, 10 Jan 2012 13:45:19 +0800, Wu Fengguang <[email protected]>
> wrote:
>
> > @@ -5943,6 +5947,7 @@ static void ironlake_write_eld(struct dr
> > if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
> > DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
> > eld[5] |= (1 << 2); /* Conn_Type, 0x1 = DisplayPort */
> > + I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
> > }
>
> Do we need to clear this bit in the HDMI case? Or do we just trust the
> BIOS to either leave this bit zero or set it correctly?
I tried booting
1) with HDMI monitor plugged
2) plug HDMI monitor after BIOS boot
In both cases, I get the same AUD_CONFIG values for the host/sink matrix
RX-V1800 SONY TV
ivybridge 0x00000000 0x00000000
ironlake 0x00000000 0x00000000
HDMI audio is working fine in all cases. So I guess it's fine to leave
HDMI as (unconfigured) 0.
Thanks,
Fengguang
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