On Sun, Oct 26, 2025 at 07:20:41PM +0100, Karel Balej wrote:
> Add a node for the phone's WiFi serviced by the Marvell SD8777 chip a
> communication with which happens over the SDIO. Also enable a regulator
> without which it is not possible to connect to networks although they
> are discovered properly.
>
> Signed-off-by: Karel Balej <[email protected]>
> ---
> .../mmp/pxa1908-samsung-coreprimevelte.dts | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git
> a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
> b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
> index b2ce5edd9c6a..36d6ae4e902e 100644
> --- a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
> +++ b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
> @@ -475,6 +475,14 @@ ldo14: ldo14 {
> regulator-min-microvolt = <1200000>;
> regulator-max-microvolt = <3300000>;
> };
> +
> + /*
> + * Needs to be enabled in order for the WiFi to be able
> + * to connect to networks.
> + */
> + ldo15 {
> + regulator-always-on;
Do we have a min/max voltage for this regulator?
> + };
> };
> };
> };
> @@ -523,6 +531,13 @@ &sdh1 {
> pinctrl-1 = <&sdh1_fast_pins_0 &sdh1_fast_pins_1 &sdh1_pins_2>;
> bus-width = <4>;
> non-removable;
> + #address-cells = <1>;
> + #size-cells = <0>;
I wonder if this should have:
vmmc-supply = <&ldo16>;
rather than regulator-always-on above.
Brian
> +
> + wifi@1 {
> + compatible = "marvell,sd8777";
> + reg = <1>;
> + };
> };
>
> &pwm3 {
> --
> 2.51.1
>
