On 7/5/23 07:46, Jagan Teki wrote:
On Wed, Jul 5, 2023 at 11:09 AM Dmitry Baryshkov
<dmitry.baryshkov@xxxxxxxxxx> wrote:
[Adding freedreno@ to cc list]
On Wed, 5 Jul 2023 at 08:31, Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> wrote:
Hi Amit,
On Wed, Jul 5, 2023 at 10:15 AM Amit Pundir <amit.pundir@xxxxxxxxxx> wrote:
Hi Marek,
On Wed, 5 Jul 2023 at 01:48, Marek Vasut <marex@xxxxxxx> wrote:
Do not generate the HS front and back porch gaps, the HSA gap and
EOT packet, as these packets are not required. This makes the bridge
work with Samsung DSIM on i.MX8MM and i.MX8MP.
This patch broke display on Dragonboard 845c (SDM845) devboard running
AOSP. This is what I see
https://people.linaro.org/~amit.pundir/db845c-userdebug/v6.5-broken-display/PXL_20230704_150156326.jpg.
Reverting this patch fixes this regression for me.
Might be msm dsi host require proper handling on these updated
mode_flags? did they?
The msm DSI host supports those flags. Also, I'd like to point out
that the patch didn't change the rest of the driver code. So even if
drm/msm ignored some of the flags, it should not have caused the
issue. Most likely the issue is on the lt9611 side. I's suspect that
additional programming is required to make it work with these flags.
True, But I'm not quite sure, most of these mode_flags were handled
more on the host. Maybe Marek can comment on this.
So, we have the same flags, but two different controllers produce
different DSI streams ? Do we have any way to analyze the stream
produced by each controller, to figure out which one is wrong and which
one is right ?
