Re: [PATCHv2 5/5] arm64: allwinner: a64: Add support for TERES-I laptop

From: Arend van Spriel
Date: Mon Jun 25 2018 - 03:44:02 EST


On 6/24/2018 6:34 PM, Harald Geyer wrote:
Icenowy Zheng writes:
>å 2018-03-15åç 16:25 +0000ïHarald Geyeråéï
> >+&mmc1 {
> >+ pinctrl-names = "default";
> >+ pinctrl-0 = <&mmc1_pins>;
> >+ vmmc-supply = <&reg_aldo2>;
> >+ vqmmc-supply = <&reg_dldo4>;
> >+ mmc-pwrseq = <&wifi_pwrseq>;
> >+ bus-width = <4>;
> >+ non-removable;
> >+ status = "okay";
> >+
> >+ rtl8723bs: wifi@1 {
> >+ reg = <1>;
> >+ interrupt-parent = <&r_pio>;
> >+ interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* PL3 */
> >+ interrupt-names = "host-wake";
> >+ };

[...]

>- This device node has no binding. The "host-wake" interrupt is part of
> Broadcom SDIO Wi-Fi binding, rather than a generic one.
I think the general mmc and interrupts bindings apply. And the mmc binding
clearly states that for sub-nodes a compatible string is optional.

However I just realized that the 'interrupt-names' property is not part
of the general interrupts binding, so I guess at least this property should
be removed.

Indeed. If the device just used the SDIO interrupt this is not needed. The Broadcom device can use either SDIO interrupt or a so-called out-of-band host-wake interrupt, which is what the above represents.

Regards,
Arend