[PATCH 0/7] qcom: initial support for the OnePlus 8T

[Caleb Connolly]

On 24/06/2024 07:18, Dmitry Baryshkov wrote:
> On Mon, Jun 24, 2024 at 03:30:24AM GMT, Caleb Connolly wrote:
>> Add bindings for the SM8250 OnePlus devices, a common devicetree,
>> touchscreen and display drivers, and a dts for the OnePlus 8T (kebab).
>>
>> The OnePlus 8 series is made up of 3 flagship smartphones from 2019,
>> featuring the Qualcomm X55 5G PCIe modem.
>>
>> This series introduces initial support for the 8T, adding drivers for
>> the 1080x2400 120Hz DSC panel and the Synaptics TCM Oncell touchscreen.
>>
>> The panel driver suffers from similar limitations to the LG SW43408
>> panel found on the Pixel 3, namely that after toggling the reset GPIO it
>> is not possible to get the panel into a working state.
> 
> Just to point it out: this is no longer true for SW43408. The panel
> wakes up and works after toggling the reset. It seems, there is an issue
> with one of the regulators, but not with the reset and/or panel startup.

Hmm ok, I've heard mixed reports then, I should try it out myself again.

I'll update the cover letter to reflect this. Thanks.
> 
>> Given the apparent prevelance of this issue, particularly with DSC
>> panels, I believe this is a bug in the core DSI code, and not a device
>> or panel specific issue. I think it is still useful to accept these
>> panel drivers into upstream since, from a users perspective, the panel
>> is fully functional just by leaving the reset GPIO alone and keeping the
>> regulator on. The only (theoretical) downside is worse battery life,
>> which is a small price to pay for a working display.
>>
>