On 03-11-20, 08:50, Rob Clark wrote:
> sorry, it didn't apply cleanly (which I guess is due to some other
> dependencies that need to be picked back to v5.4 product kernel), and
> due to some other things I'm in middle of debugging I didn't have time
> yet to switch to v5.10-rc or look at what
Cherry-pick two missed drm/msm/dp related patches to msm-next-staging
Kuogee Hsieh (2):
drm/msm/dp: return correct connection status after suspend
drm/msm/dp: fixes wrong connection state caused by failure of link
train
drivers/gpu/drm/msm/dp/dp_catalog.c | 13 +++
Connection state is not set correctly happen when either failure of link
train due to cable unplugged in the middle of aux channel reading or
cable plugged in while in suspended state. This patch fixes these problems.
This patch also replace ST_SUSPEND_PENDING with ST_DISPLAY_OFF.
Changes in V2:
During suspend, dp host controller and hpd block are disabled due to
both ahb and aux clock are disabled. Therefore hpd plug/unplug interrupts
will not be generated. At dp_pm_resume(), reinitialize both dp host
controller and hpd block so that hpd plug/unplug interrupts will be
generated and
At dp_pm_resume, reinitialize both dp host controller and hpd block
so that hpd connection can be detected at realtime by reading hpd state
status register. Also hpd plug interrupt can be generated accordingly.
Changes in v2:
-- use container_of to cast correct dp_display_private pointer
at
Connection state is not set correctly happen when either failure of link
train due to cable unplugged in the middle of aux channel reading or
cable plugged in while in suspended state. This patch fixes these problems.
This patch also replace ST_SUSPEND_PENDING with ST_DISPLAY_OFF.
Changes in V2:
cherry-pick 3 patches at chromeos-5.4 to msm-next-staging
Kuogee Hsieh (2):
FROMLIST: drm/msm/dp: return correct connection status after suspend
FROMLIST: drm/msm/dp: fixes wrong connection state caused by failure
of link train
Stephen Boyd (1):
FIXUP: FROMLIST: drm/msm/dp: return
From: Stephen Boyd
During suspend, dp host controller and hpd block are disabled due to
both ahb and aux clock are disabled. Therefore hpd plug/unplug interrupts
will not be generated. At dp_pm_resume(), reinitialize both dp host
controller and hpd block so that hpd plug/unplug interrupts will
Some dongles require link training done at irq_hpd request instead
of plugin request. This patch promote irq_hpd handler to handle link
training and setup hpd_state correctly.
Fixes: fdaf9a5e3c15 (drm/msm/dp: fixes wrong connection state caused by
failure of link training)
Signed-off-by: Kuogee
Some dongle will not clear LINK_STATUS_UPDATED bit after
DPCD read which cause link training failed. This patch
just read 6 bytes of DPCD link status from sink and return
without checking LINK_STATUS_UPDATED bit.
Only 8 bits are used to represent link rate at sinker DPCD.
The really link rate is
Some dongle require link training be done at irq_hpd request. This serial
patches address the issues so that DP/HDMI display can be lit up properlly.
This serial Patch also fixes clock stuck at "off" state error caused by
previous link training failed.
Kuogee Hsieh (3):
drm/msm/dp: deinitialize
DP compo phy have to be enable to start link training. When
link training failed phy need to be disabled so that next
link traning can be proceed smoothly at next plug in. This
patch de-initialize mainlink to disable phy if link training
failed. This prevent system crash due to
On 2020-11-02 12:59, Stephen Boyd wrote:
Quoting Kuogee Hsieh (2020-10-30 16:22:53)
DP compo phy have to be enable to start link training. When
link training failed phy need to be disabled so that next
link trainng can be proceed smoothly at next plug in. This
s/trainng/training/
patch de
On Mon, Nov 02, 2020 at 09:02:25PM +0100, Marijn Suijten wrote:
> nr_rings is reset to 1, but when this function is called for a second
> (and third!) time nr_rings > 1 is false, thus the else case is entered
> to set up a buffer for the RPTR shadow and consequently written to
> RB_RPTR_ADDR,
On 2020-11-02 11:29, Stephen Boyd wrote:
Subject has a typo in "training".
Quoting Kuogee Hsieh (2020-10-30 16:23:24)
Some dongles, such as Apple, required link training done at irq_hpd
s/required/require/
request instead of plugin request. This patch promote irq_hpd hanlder
Should be fixed by:
https://patchwork.freedesktop.org/patch/397039/?series=83038=1
On Mon, Nov 2, 2020 at 7:44 PM dev god wrote:
>
> Hi
>
> fix implicit declaration of function error.
>
> >> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:1229:7: error: implicit
> >> declaration of function
On Mon, Nov 2, 2020 at 9:47 PM Viresh Kumar wrote:
>
> On 27-10-20, 17:05, Viresh Kumar wrote:
> > It isn't that straight forward unfortunately, we need to make sure the
> > table doesn't get allocated for the same device twice, so
> > find+allocate needs to happen within a locked region.
> >
> >
Hi
fix implicit declaration of function error.
>> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:1229:7: error: implicit
declaration of function 'msm_dp_display_pre_disable'
[-Werror,-Wimplicit-function-declaration]
if (msm_dp_display_pre_disable(priv->dp, drm_enc))
For sinks that do not support audio, there is no need to notify
audio subsystem of the connection event.
This will make sure that audio routes only to the primary display
when connected to such sinks.
changes in v2:
- Added fixes tag
- Removed nested if condition and removed usage of global
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