* [PATCH] Revert "drm/radeon: fix DP link training issue with second 4K monitor"
@ 2016-10-24 7:52 Michel Dänzer
[not found] ` <20161024075220.6402-1-michel-otUistvHUpPR7s880joybQ@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Michel Dänzer @ 2016-10-24 7:52 UTC (permalink / raw)
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW; +Cc: Arindam Nath
From: Michel Dänzer <michel.daenzer@amd.com>
This reverts commit 1a738347df2ee4977459a8776fe2c62196bdcb1b.
It caused at least some Kaveri laptops to incorrectly report DisplayPort
connectors as connected.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97857
Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
---
drivers/gpu/drm/radeon/radeon_dp_auxch.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_dp_auxch.c b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
index db64e00..3b0c229 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_auxch.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
@@ -105,7 +105,7 @@ radeon_dp_aux_transfer_native(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg
tmp &= AUX_HPD_SEL(0x7);
tmp |= AUX_HPD_SEL(chan->rec.hpd);
- tmp |= AUX_EN | AUX_LS_READ_EN | AUX_HPD_DISCON(0x1);
+ tmp |= AUX_EN | AUX_LS_READ_EN;
WREG32(AUX_CONTROL + aux_offset[instance], tmp);
--
2.10.1
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 2+ messages in thread
* RE: [PATCH] Revert "drm/radeon: fix DP link training issue with second 4K monitor"
[not found] ` <20161024075220.6402-1-michel-otUistvHUpPR7s880joybQ@public.gmane.org>
@ 2016-10-24 13:48 ` Deucher, Alexander
0 siblings, 0 replies; 2+ messages in thread
From: Deucher, Alexander @ 2016-10-24 13:48 UTC (permalink / raw)
To: 'Michel Dänzer', amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
Cc: Nath, Arindam
> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces@lists.freedesktop.org] On Behalf
> Of Michel Dänzer
> Sent: Monday, October 24, 2016 3:52 AM
> To: amd-gfx@lists.freedesktop.org
> Cc: Nath, Arindam
> Subject: [PATCH] Revert "drm/radeon: fix DP link training issue with second
> 4K monitor"
>
> From: Michel Dänzer <michel.daenzer@amd.com>
>
> This reverts commit 1a738347df2ee4977459a8776fe2c62196bdcb1b.
>
> It caused at least some Kaveri laptops to incorrectly report DisplayPort
> connectors as connected.
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97857
> Cc: stable@vger.kernel.org
> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
> ---
> drivers/gpu/drm/radeon/radeon_dp_auxch.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_dp_auxch.c
> b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
> index db64e00..3b0c229 100644
> --- a/drivers/gpu/drm/radeon/radeon_dp_auxch.c
> +++ b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
> @@ -105,7 +105,7 @@ radeon_dp_aux_transfer_native(struct drm_dp_aux
> *aux, struct drm_dp_aux_msg *msg
>
> tmp &= AUX_HPD_SEL(0x7);
> tmp |= AUX_HPD_SEL(chan->rec.hpd);
> - tmp |= AUX_EN | AUX_LS_READ_EN | AUX_HPD_DISCON(0x1);
> + tmp |= AUX_EN | AUX_LS_READ_EN;
>
> WREG32(AUX_CONTROL + aux_offset[instance], tmp);
>
> --
> 2.10.1
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2016-10-24 13:48 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-10-24 7:52 [PATCH] Revert "drm/radeon: fix DP link training issue with second 4K monitor" Michel Dänzer
[not found] ` <20161024075220.6402-1-michel-otUistvHUpPR7s880joybQ@public.gmane.org>
2016-10-24 13:48 ` Deucher, Alexander
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.