On Wed, Apr 14, 2021 at 5:16 PM Dmitry Baryshkov
wrote:
>
> On 15/04/2021 02:11, Abhinav Kumar wrote:
> > Add the msm_disp_snapshot module which adds supports to dump dpu
> > registers and capture the drm atomic state which can be used in
> > case of error conditions.
> >
> > changes in v4:
> >
Hi Dmitry
Thanks for the review.
On 2021-04-14 17:16, Dmitry Baryshkov wrote:
On 15/04/2021 02:11, Abhinav Kumar wrote:
Add the msm_disp_snapshot module which adds supports to dump dpu
registers and capture the drm atomic state which can be used in
case of error conditions.
changes in v4:
-
On 15/04/2021 02:11, Abhinav Kumar wrote:
Add the msm_disp_snapshot module which adds supports to dump dpu
registers and capture the drm atomic state which can be used in
case of error conditions.
changes in v4:
- rename dpu_dbg to msm_disp_snapshot and move it to msm/disp
- start using a li
Add snapshot points across dpu driver to trigger dumps when critical
errors are hit.
changes in v4:
- change the callers to use the new snapshot macro
Signed-off-by: Abhinav Kumar
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 18 +++---
drivers/gpu/drm/msm/disp/dpu1/dp
This series adds support to use devcoredump for DPU driver. It introduces
the msm_disp_snapshot module which assists in the capturing of register dumps
during
error scenarios. When a display related error happens, the msm_disp_snapshot
module
captures all the relevant register dumps along with th
Add the msm_disp_snapshot module which adds supports to dump dpu
registers and capture the drm atomic state which can be used in
case of error conditions.
changes in v4:
- rename dpu_dbg to msm_disp_snapshot and move it to msm/disp
- start using a list of blocks to store the hardware block infor
Currently drm_atomic_print_state() internally allocates and uses a
drm_info printer. Allow it to accept any drm_printer type so that
the API can be leveraged even for taking drm snapshot.
Rename the drm_atomic_print_state() to drm_atomic_print_new_state()
so that it reflects its functionality bett
Quoting Kuogee Hsieh (2021-04-14 14:02:50)
> Initialize audio_comp when audio starts and wait for audio_comp at
> dp_display_disable(). This will take care of both dongle unplugged
> and display off (suspend) cases.
>
> Changes in v2:
> -- add dp_display_start_audio()
>
> Signed-off-by: Kuogee Hs
Quoting Kuogee Hsieh (2021-04-14 14:02:34)
> Link status is different from display connected status in the case
> of something like an Apple dongle where the type-c plug can be
> connected, and therefore the link is connected, but no sink is
> connected until an HDMI cable is plugged into the dongl
Quoting Kuogee Hsieh (2021-04-13 16:11:44)
> Make sure main link is in connection state before start aux
> read/write operation to avoid unnecessary long delay due to
> main link had been unplugged.
>
> Signed-off-by: Kuogee Hsieh
> ---
> drivers/gpu/drm/msm/dp/dp_aux.c | 5 +
> drivers/gp
Initialize audio_comp when audio starts and wait for audio_comp at
dp_display_disable(). This will take care of both dongle unplugged
and display off (suspend) cases.
Changes in v2:
-- add dp_display_start_audio()
Signed-off-by: Kuogee Hsieh
---
drivers/gpu/drm/msm/dp/dp_audio.c | 1 +
drive
Link status is different from display connected status in the case
of something like an Apple dongle where the type-c plug can be
connected, and therefore the link is connected, but no sink is
connected until an HDMI cable is plugged into the dongle.
The sink_count of DPCD of dongle will increase t
On 2021-04-13 20:17, Stephen Boyd wrote:
Quoting Kuogee Hsieh (2021-04-13 16:11:30)
At dongle unplug, dp initializes audio_comp followed by sending
disconnect
event notification to audio and to make sure audio had shutdown
completely
by wait for audio completion notification at display_disable(
The backlight level of an eDP panel can be controlled through the AUX
channel using DPCD registers of the panel.
The capability for the Source device to adjust backlight characteristics
within the panel, using the Sink device DPCD registers is indicated by
the TCON_BACKLIGHT_ADJUSTMENT_CAPABLE bit
Add panel backlight control using DPCD registers on the DisplayPort aux
channel.
Signed-off-by: Rajeev Nandan
---
drivers/gpu/drm/Kconfig| 8 ++
drivers/gpu/drm/Makefile | 1 +
drivers/gpu/drm/drm_dp_aux_backlight.c | 191 +
inclu
Add support to control the backlight of the eDP panel connected to
the ti-sn65dsi86 bridge through aux channel.
Signed-off-by: Rajeev Nandan
---
drivers/gpu/drm/bridge/Kconfig| 1 +
drivers/gpu/drm/bridge/ti-sn65dsi86.c | 26 ++
2 files changed, 27 insertions(+)
If the panel connected to the bridge supports backlight control
using DPCD registers on the DisplayPort aux channel, setting
"use-aux-backlight" property in the bridge node will enable the
registration of a DP aux backlight device from the bridge driver.
Signed-off-by: Rajeev Nandan
---
.../devi
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