Re: [PATCH 03/14] drm/atmel-hlcdc: Convert to Linux IRQ interfaces

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Hi

Am 28.07.21 um 20:11 schrieb Sam Ravnborg:
Hi Dan,

thanks for the quick feedback!

On Wed, Jul 28, 2021 at 05:50:34PM +0000, Dan.Sneddon@xxxxxxxxxxxxx wrote:
On 7/28/21 8:44 AM, Sam Ravnborg wrote:
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Hi Dan,

On Wed, Jul 28, 2021 at 03:11:08PM +0000, Dan.Sneddon@xxxxxxxxxxxxx wrote:
On 7/28/21 7:00 AM, Sam Ravnborg wrote:
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Hi Dan,

I hope you can fine to test this patch from Thomas.
If this works then we can forget about my attempt to do the same.

I'll test this as soon as I can and let you know.

Thanks, crossing my fingers... (which explains the funny spelling from
time to time)

          Sam
So I ran the test on an A5D27 XULT board with a PDA5 display.  Our
graphics demos that come with our linux4sam releases seem to run just
fine.  modetest -v seems to run just fine.  However, vbltest returns
"drmWaitVBlank (relative) failed ret: -1".  I don't understand why
modetest -v is working and vbltest isn't, but that's what I'm seeing.

Thanks for testing.


Strange indeed.


Just to be sure...
Can you confirm that vbltest is working OK *before* this patch?

Yes, can you please verify that it regressed. If so, this would mean that the driver misses vblank interrupts with the patch applied.

Best regards
Thomas


	Sam


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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