On Saturday, June 21st, 2025 at 12:17, Konrad Dybcio
<[email protected]> wrote:
> > +
> > +&sdhc_1 {
> > + vmmc-supply = <&pm8953_l8>;
> > + vqmmc-supply = <&pm8953_l5>;
>
>
> you should add regulator-allow-set-load to these vregs
So, do you mean I should add 'regulator-allow-set-load' property to 'pm8953_l5'
and 'pm8953_l8' regulators? If so, should I do that for 'pm8953_l11' and
'pm8953_l12' regulators too (sdhc_2)?
> [...]
>
> > +&tlmm {
> > + gpio-reserved-ranges = <0 4>,
>
>
> These GPIOs correspond to I2C/SPI_1
>
> <135 4>;
>
>
> And these correspond to I2C/SPI_7
>
> Without much more knowledge, I would guesstimate one of them is
> for a fingerprint reader and the other for NFC eSE
>
> Konrad
I made that check in past and, while it looks like 'gpio16' and 'gpio17' are
assigned to nfc pinctrl (though, nfc appears not to be implemented in this
device, considering also the lack of 'phandle' for such pinctrls) in downstream
dts, the devicetree pinctrl still doesn't mentions the gpios associated with
the fingerprint node (which is, instead, implemented in this device). So, I'm
not able to verify if gpios 0-3 and gpios 135-138 are related to fingerprint
and secure element, respectively.
