> I've tried to be slightly lazy than in my previous mail and quickly
> tested this on my snb here: Bit 23 in SDEISR (0xc4000) is set when the
> cable is plugged in, and cleared when nothing is plugged in. Afaict it
> works as advertised. Note tha the SDE irq definitions nicely
> differentiates bet
On Fri, Oct 12, 2012 at 9:03 PM, Stuart Abercrombie
wrote:
>> My docs here say that the SDE_ISR reg contains what we want - high
>> level irq bit when the hpd line is enabled. I admit, I haven't tested
>> this ...
>
> I'm looking at 2.1.1 in this
> http://intellinuxgraphics.org/documentation/SNB/I
> My docs here say that the SDE_ISR reg contains what we want - high
> level irq bit when the hpd line is enabled. I admit, I haven't tested
> this ...
I'm looking at 2.1.1 in this
http://intellinuxgraphics.org/documentation/SNB/IHD_OS_Vol3_Part3.pdf.
All it has relating to hotplug in SDEIIR are
On Fri, Oct 12, 2012 at 8:40 PM, Stuart Abercrombie
wrote:
>> In the hotplug register, like on g4x. But that moved to to PCH_IIR on pch
>> platforms. I plan to rework the entire hotplug handling for 3.8, hence why
>> I haven't bothered to wire this up yet.
>
> You are saying that the HPD line stat
> In the hotplug register, like on g4x. But that moved to to PCH_IIR on pch
> platforms. I plan to rework the entire hotplug handling for 3.8, hence why
> I haven't bothered to wire this up yet.
You are saying that the HPD line state is available in the register
called SDEIIR in the code? The doc
On Fri, Oct 12, 2012 at 10:29:38AM -0700, Stuart Abercrombie wrote:
> > Nope, the real fix is to simply check the status of the hpd line before
> > trying the edid read. We already have that for g4x class chips, check
> > g4x_hdmi_connected. We'd need to add similar checks for all other
> > platfor
> Nope, the real fix is to simply check the status of the hpd line before
> trying the edid read. We already have that for g4x class chips, check
> g4x_hdmi_connected. We'd need to add similar checks for all other
> platforms.
> -Daniel
That would be preferable. Unfortunately we did not find a wa
On Thu, Oct 11, 2012 at 04:27:54PM -0700, Stuart Abercrombie wrote:
> Following a hotplug interrupt the driver uses a successful EDID read to
> indicate HDMI sink presence.
>
> This leads to missing HDMI cable unplug events because the DDC lines can
> remain up, allowing an EDID read to complete
Following a hotplug interrupt the driver uses a successful EDID read to
indicate HDMI sink presence.
This leads to missing HDMI cable unplug events because the DDC lines can remain
up, allowing an EDID read to complete, well after the HPD line goes down during
unplugging
Since it is only the d
