于 2018年6月25日 GMT+08:00 下午4:13:01, Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx> 写到:
>On 6/25/2018 9:47 AM, Icenowy Zheng wrote:
>>
>>
>> 于 2018年6月25日 GMT+08:00 下午3:43:51, Arend van Spriel
><arend.vanspriel@xxxxxxxxxxxx> 写到:
>>> On 6/24/2018 6:34 PM, Harald Geyer wrote:
>>>> Icenowy Zheng writes:
>>>>>> 在 2018-03-15四的 16:25 +0000，Harald Geyer写道：
>>>>>>>> +&mmc1 {
>>>>>>>> + pinctrl-names = "default";
>>>>>>>> + pinctrl-0 = <&mmc1_pins>;
>>>>>>>> + vmmc-supply = <®_aldo2>;
>>>>>>>> + vqmmc-supply = <®_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.
>>
>> RTL8....S is also capable of use OOB interrupt.
>
>Ok. Is it also in-place in this TERES-I laptop? Anyway, if RTL8...S
In fact it's a regexp here, mean Realtek SDIO WLAN NICs.
>does
>not have a binding specification there is not much to do about it. In
>my
>opinion it does not make sense to add it to the generic mmc/sdio
>binding
>as this interrupt does not involve the mmc/sdio hardware hence the term
>
>OOB. There is generic wifi binding net/wireless/ieee80211.txt in which
It seems ok. Maybe it can be used for all interfaces, not
SDIO, although I don't think there's any other interfaces
that can use OOB IRQ except SPI and SDIO, maybe UART? :-)
>this could be added. Obviously it would just be a binding and no
>guarantee that the actual device driver supports it so the RTL driver
>would need modification for that.
Yes. Currently OOB interrupt is not used at all.
>
>Regards,
>Arend
