On Thu, Oct 02, 2025 at 04:55:44AM +0000, Paul Sajna wrote: > October 1, 2025 at 9:09 AM, "Konrad Dybcio" <[email protected] > mailto:[email protected]?to=%22Konrad%20Dybcio%22%20%3Ckonrad.dybcio%40oss.qualcomm.com%3E > > wrote: > > > > > > On 9/29/25 7:05 AM, Paul Sajna wrote: > > > > > > > This patch will allow any values between 4.6 V and 6.0 V to > > be set on your phone, with the kernel defaulting to 4.6 V at > > boot and staying there until (if?) any driver requests that to > > change. > > > > Your panel probably expects a *very* specific pair of voltages > > and any deviation may cause unpredictable consequences, including > > magic smoke if you happen to go over a certain limit. > > > > You should most likely hardcode that specific expected voltage here > > These are the values used in downstream android dts > https://github.com/LineageOS/android_kernel_lge_sdm845/blob/efa8458f79dffeb380d43b38b9403407f87d9f05/arch/arm64/boot/dts/qcom/pmi8998.dtsi#L484-L485
Downstream frequently further constraints the regulators. Could you please check the boards's dts file and the drivers (SDE)? -- With best wishes Dmitry
