diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2023-08-30 15:23:58 +0100 |
|---|---|---|
| committer | Robert Foss <rfoss@kernel.org> | 2023-10-16 11:09:33 +0200 |
| commit | e12c4703cec0f07bae2f7cd1538ba9354e92b754 (patch) | |
| tree | a4e3ddcdfb0934ebcea0552e5da9dfffac436de6 /drivers/gpu/drm/bridge/adv7511/adv7511.h | |
| parent | 7618aa3ab38e1130268cca6aab408cd4fefeba0c (diff) | |
drm: adv7511: Add hpd_override_enable variable to struct adv7511_chip_info
As per spec, it is allowed to pulse the HPD signal to indicate that the
EDID information has changed. Some monitors do this when they wake up
from standby or are enabled. When the HPD goes low the adv7511 is
reset and the outputs are disabled which might cause the monitor to
go to standby again. To avoid this we ignore the HPD pin for the
first few seconds after enabling the output. On the other hand,
adv7535 require to enable HPD Override bit for proper HPD.
Add hpd_override_enable variable to struct adv7511_chip_info to handle
this scenario.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230830142358.275459-9-biju.das.jz@bp.renesas.com
Diffstat (limited to 'drivers/gpu/drm/bridge/adv7511/adv7511.h')
| -rw-r--r-- | drivers/gpu/drm/bridge/adv7511/adv7511.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h index 0d39e32b0793..39c9ece373b0 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511.h +++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h @@ -342,6 +342,7 @@ struct adv7511_chip_info { unsigned int reg_cec_offset; bool has_dsi; bool link_config; + bool hpd_override_enable; }; struct adv7511 { |