[v1 0/2] *** Support Starry-himax83102-j02 and Starry-ili9882t TDDI MIPI-DSI panel ***

[cong yang]

Hi,neil:
 Thank you for your reply, it's not that the polarity of reset is
different. The state of this rst needs to be high during a certain period
of time (when hid touch communicate,). I have tried to set the default
property to high in DT, but from the log and waveform, the rseet single  is
set to low by boe_panel_add before hid touch communication.As shown in the
picture, rst needs to be high before hid ready. Datasheet:
https://github.com/HimaxSoftware/Doc/tree/main/Himax_Chipset_Power_Sequence
[image: image.png]

On Mon, May 22, 2023 at 3:24 PM <neil.armstrong at linaro.org> wrote:

> Hi,
>
>
> On 19/05/2023 10:01, Cong Yang wrote:
> > The previous patch is not based on drm-misc-next, resend this series.
> > Support Starry-himax83102-j02 and Starry-ili9882t TDDI MIPI-DSI panel,
> > set the default high for RST at boe_panel_add and add lp11_before_reset
> flag.
>
> If the reset gpio polarity is different, please change it in the DT by
> using
> a different gpio flag instead of changing the driver.
>
> However if the logic is different and reset must never be asserted to low,
> the the bindings + driver to make the reset line optional and set a
> gpio-hog
> in DT to keep it at a safe level.
>
> Neil
>
>
> > Cong Yang (2):
> >    drm/panel: Support for Starry-himax83102-j02 TDDI MIPI-DSI panel
> >    drm/panel: Support for Starry-ili9882t TDDI MIPI-DSI panel
> >
> >   .../gpu/drm/panel/panel-boe-tv101wum-nl6.c    | 474 +++++++++++++++++-
> >   1 file changed, 473 insertions(+), 1 deletion(-)
> >
>
>
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