On 28 June 2012 21:18, Jassi Brar wrote:
> On 28 June 2012 20:57, Tomi Valkeinen wrote:
>>> > By the way, when the device is in system suspend, we surely won't detect
>>> > the HPD even if we kept the HPD always enabled. So there we'll miss the
>>> > HPD interrupt anyway, and the EDID cache woul
On 28 June 2012 20:57, Tomi Valkeinen wrote:
> On Thu, 2012-06-28 at 20:44 +0530, Jassi Brar wrote:
>> it has, some user action should enable it while 'making the device
>> ready for new display'.
>> IOW, how do you envision an OMAP4 based tablet with HDMI port react to
>> display connections ?
>
On Thu, 2012-06-28 at 20:44 +0530, Jassi Brar wrote:
> I won't press further with my Utopian ideas, but I think we need to
> segregate 5V/HPD enabling from PHY enabling somehow. Because that is
> already failing slow but otherwise perfectly legit displays (like
> Andy's "HPD taking 700ms" TV)
Yes
On 28 June 2012 20:44, Tomi Valkeinen wrote:
> On Thu, 2012-06-28 at 18:43 +0530, Jassi Brar wrote:
>
>> A quick reaction of my guts say, we simply enable 5V/HPD_IRQ during
>> probe and disable during remove.
>> HDMI enable/disable via /sysfs/ and HPD (de)assertion, switch only
>> HDMI_PHY on/off.
On 28 June 2012 19:01, Tomi Valkeinen wrote:
> On Thu, 2012-06-28 at 18:43 +0530, Jassi Brar wrote:
>> On 28 June 2012 17:33, Andy Green wrote:
>
>> > If Jassi's alright with it we might have a go at implementing this, but can
>> > you define a bit more about how we logically tell DSS that we wan
On Thu, 2012-06-28 at 18:43 +0530, Jassi Brar wrote:
> A quick reaction of my guts say, we simply enable 5V/HPD_IRQ during
> probe and disable during remove.
> HDMI enable/disable via /sysfs/ and HPD (de)assertion, switch only
> HDMI_PHY on/off.
> The user selecting "Autodetect and Configure" opti
On Thu, 2012-06-28 at 16:28 +0530, Jassi Brar wrote:
> > I think among the first things, while enabling HDMI, should be to see
> > if there is really some display connected on the port i.e, HPD
> > asserted. Only if ti_hdmi_4_detect() returned true, should we
> > proceed otherwise wait for HPQ irq
On Thu, 2012-06-28 at 18:43 +0530, Jassi Brar wrote:
> On 28 June 2012 17:33, Andy Green wrote:
> > If Jassi's alright with it we might have a go at implementing this, but can
> > you define a bit more about how we logically tell DSS that we want to, eg,
> > disable HDMI totally?
> >
> A quick re
On 28 June 2012 17:33, Andy Green wrote:
> On 06/28/12 19:10, the mail apparently from Tomi Valkeinen included:
>
>> On Thu, 2012-06-28 at 16:28 +0530, Jassi Brar wrote:
>>>
>>> On 28 June 2012 16:17, Jassi Brar wrote:
On 28 June 2012 15:44, Tomi Valkeinen wrote:
>
> On Thu, 20
On Thu, 2012-06-28 at 20:03 +0800, Andy Green wrote:
> On 06/28/12 19:10, the mail apparently from Tomi Valkeinen included:
> > For this to work like you want we need a bigger restructuring of HDMI
> > and partly omapdss also. Currently we have just one big "enabled" or
> > "disabled" state. We ne
On 28 June 2012 16:40, Tomi Valkeinen wrote:
> On Thu, 2012-06-28 at 16:28 +0530, Jassi Brar wrote:
> >
>> Sorry a correction. Reading detect() won't work. I suggest we keep HPD
>> IRQ enabled for the lifetime of the driver.
>
> Ok, I see. But that's not acceptable. It would require us to keep the
On 06/28/12 19:38, the mail apparently from Tomi Valkeinen included:
On Thu, 2012-06-28 at 14:10 +0300, Tomi Valkeinen wrote:
On Thu, 2012-06-28 at 16:28 +0530, Jassi Brar wrote:
Sorry a correction. Reading detect() won't work. I suggest we keep HPD
IRQ enabled for the lifetime of the driver.
On 06/28/12 19:10, the mail apparently from Tomi Valkeinen included:
On Thu, 2012-06-28 at 16:28 +0530, Jassi Brar wrote:
On 28 June 2012 16:17, Jassi Brar wrote:
On 28 June 2012 15:44, Tomi Valkeinen wrote:
On Thu, 2012-06-28 at 15:18 +0530, Jassi Brar wrote:
--- a/drivers/video/omap2/ds
On Thu, 2012-06-28 at 14:10 +0300, Tomi Valkeinen wrote:
> On Thu, 2012-06-28 at 16:28 +0530, Jassi Brar wrote:
> > Sorry a correction. Reading detect() won't work. I suggest we keep HPD
> > IRQ enabled for the lifetime of the driver.
>
> Ok, I see. But that's not acceptable. It would require us
On Thu, 2012-06-28 at 16:28 +0530, Jassi Brar wrote:
> On 28 June 2012 16:17, Jassi Brar wrote:
> > On 28 June 2012 15:44, Tomi Valkeinen wrote:
> >> On Thu, 2012-06-28 at 15:18 +0530, Jassi Brar wrote:
> >
> >>> >> --- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
> >>> >> +++ b/drivers/video/omap
On Thu, 2012-06-28 at 16:17 +0530, Jassi Brar wrote:
> On 28 June 2012 15:44, Tomi Valkeinen wrote:
> > When the display device is disabled, we're not listening to the hpd
> > interrupt anymore. So when it's disabled, the cable can be replugged and
> > the monitor changed, and the driver won't kn
On 28 June 2012 16:17, Jassi Brar wrote:
> On 28 June 2012 15:44, Tomi Valkeinen wrote:
>> On Thu, 2012-06-28 at 15:18 +0530, Jassi Brar wrote:
>
>>> >> --- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
>>> >> +++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
>>> >> @@ -243,10 +243,13 @@ static int h
On 28 June 2012 15:44, Tomi Valkeinen wrote:
> On Thu, 2012-06-28 at 15:18 +0530, Jassi Brar wrote:
>> >> --- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
>> >> +++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
>> >> @@ -243,10 +243,13 @@ static int hdmi_check_hpd_state(struct hdmi_ip_data
>> >> *i
On Thu, 2012-06-28 at 15:18 +0530, Jassi Brar wrote:
> On 28 June 2012 13:18, Tomi Valkeinen wrote:
> > On Wed, 2012-06-27 at 19:35 +0530, jaswinder.si...@linaro.org wrote:
> >> From: Jassi Brar
> >>
> >> We can easily keep track of latest EDID from the display and hence avoid
> >> expensive EDID
On 28 June 2012 13:18, Tomi Valkeinen wrote:
> On Wed, 2012-06-27 at 19:35 +0530, jaswinder.si...@linaro.org wrote:
>> From: Jassi Brar
>>
>> We can easily keep track of latest EDID from the display and hence avoid
>> expensive EDID re-reads over I2C.
>> This could also help some cheapo displays
On Wed, 2012-06-27 at 19:35 +0530, jaswinder.si...@linaro.org wrote:
> From: Jassi Brar
>
> We can easily keep track of latest EDID from the display and hence avoid
> expensive EDID re-reads over I2C.
> This could also help some cheapo displays that provide EDID reliably only
> immediately after
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