Re: [PATCH] arm64: dts: qcom: sc8280xp-huawei-gaokun3: Add dsi panel DT node

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 6/30/26 11:28 AM, Pengyu Luo wrote:
> On Tue, Jun 30, 2026 at 5:18 PM Konrad Dybcio
> <konrad.dybcio@oss.qualcomm.com> wrote:
>>
>> On 6/30/26 6:22 AM, Pengyu Luo wrote:
>>> DSI panel driver have been added for a while, so add the DT node to
>>> enable it. vdd{a,s}-supply for dsi, dsi_phy are blank since the DSDT
>>> describes the wrong, no impact after manual disabling these wrong
>>> supplies.
>>>
>>> Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
>>> ---
>>
>> [...]
>>
>>> +&mdss0_dsi0 {
>>> +     /* real vdda is unknown */
>>> +
>>
>> L3B: DSI core 1.2 V (both?)
>> L6B: DSI0/1 PLL and core 0.9 V
>>
> 
> Yes, that is what I saw in the DSDT, however, I can disable them
> safely (hack the regulator driver to add a sysfs to handle these
> regulators), the panel works well.

L3B additionally powers CSIPHY2/3, EDP0/1, REFGEN (probably why it
ends up being on), UFSPHY and USB1_PHY

L6B additionally powers the same components, minus refgen and USB

Konrad