From: Philippe Schenker <philippe.schenker@toradex.com>

This patch-set fixes the lt8912b driver that currently does not take
care whether or not the attached display has postiive or negative syncs
and or reports on EDID if it needs HDMI mode or DVI.

This series addresses also an issue where the LVDS startup sequence was
written to the wrong I2C address (the lt8912 has three). This caused
writing into reserved registers and causing an unstable HDMI picture
that manifests itself only sometimes and depending on the monitor with a
flickering and a repeating of going black and coming up again. While at
it move also some sensible comments to the sequence.


Francesco Dolcini (2):
  drm/bridge: lt8912b: fix corrupted image output
  drm/bridge: lt8912b: clarify lvds output status

Philippe Schenker (2):
  drm/bridge: lt8912b: add vsync hsync
  drm/bridge: lt8912b: set hdmi or dvi mode

 drivers/gpu/drm/bridge/lontium-lt8912b.c | 39 +++++++++++++++++-------
 1 file changed, 28 insertions(+), 11 deletions(-)

-- 
2.37.3

On Thu, 22 Sept 2022 at 14:43, Philippe Schenker <dev@pschenker.ch> wrote:
>
> From: Philippe Schenker <philippe.schenker@toradex.com>
>
> This patch-set fixes the lt8912b driver that currently does not take
> care whether or not the attached display has postiive or negative syncs
> and or reports on EDID if it needs HDMI mode or DVI.
>
> This series addresses also an issue where the LVDS startup sequence was
> written to the wrong I2C address (the lt8912 has three). This caused
> writing into reserved registers and causing an unstable HDMI picture
> that manifests itself only sometimes and depending on the monitor with a
> flickering and a repeating of going black and coming up again. While at
> it move also some sensible comments to the sequence.
>
>
> Francesco Dolcini (2):
>   drm/bridge: lt8912b: fix corrupted image output
>   drm/bridge: lt8912b: clarify lvds output status
>
> Philippe Schenker (2):
>   drm/bridge: lt8912b: add vsync hsync
>   drm/bridge: lt8912b: set hdmi or dvi mode
>
>  drivers/gpu/drm/bridge/lontium-lt8912b.c | 39 +++++++++++++++++-------
>  1 file changed, 28 insertions(+), 11 deletions(-)
>
> --
> 2.37.3
>

Thanks for the series & the reviews.

Applied to drm-misc-next.

Hi,

On Thu, 22 Sep 2022 14:43:02 +0200, Philippe Schenker wrote:
> From: Philippe Schenker <philippe.schenker@toradex.com>
> 
> This patch-set fixes the lt8912b driver that currently does not take
> care whether or not the attached display has postiive or negative syncs
> and or reports on EDID if it needs HDMI mode or DVI.
> 
> This series addresses also an issue where the LVDS startup sequence was
> written to the wrong I2C address (the lt8912 has three). This caused
> writing into reserved registers and causing an unstable HDMI picture
> that manifests itself only sometimes and depending on the monitor with a
> flickering and a repeating of going black and coming up again. While at
> it move also some sensible comments to the sequence.
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-fixes)

[1/4] drm/bridge: lt8912b: add vsync hsync
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=da73a94fa282f78d485bd0aab36c8ac15b6f792c
[2/4] drm/bridge: lt8912b: set hdmi or dvi mode
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=6dd1de12e1243f2013e4fabf31e99e63b1a860d0
[3/4] drm/bridge: lt8912b: fix corrupted image output
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=051ad2788d35ca07aec8402542e5d38429f2426a

-- 
Neil

Hi,

On Thu, 22 Sep 2022 14:43:02 +0200, Philippe Schenker wrote:
> From: Philippe Schenker <philippe.schenker@toradex.com>
> 
> This patch-set fixes the lt8912b driver that currently does not take
> care whether or not the attached display has postiive or negative syncs
> and or reports on EDID if it needs HDMI mode or DVI.
> 
> This series addresses also an issue where the LVDS startup sequence was
> written to the wrong I2C address (the lt8912 has three). This caused
> writing into reserved registers and causing an unstable HDMI picture
> that manifests itself only sometimes and depending on the monitor with a
> flickering and a repeating of going black and coming up again. While at
> it move also some sensible comments to the sequence.
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[4/4] drm/bridge: lt8912b: clarify lvds output status
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=fc44f3636a4db6544fd1532280e8adcd1ef13ba2

-- 
Neil