[PATCH] arm64: dts: mediatek: add mmc2 support for mt8365-evk

Alexandre Mergnat amergnat at baylibre.com
Wed Jan 15 04:12:29 PST 2025



On 14/01/2025 11:38, AngeloGioacchino Del Regno wrote:
>> +&mmc2 {
>> +    assigned-clock-parents = <&topckgen CLK_TOP_MSDCPLL>;
>> +    assigned-clocks = <&topckgen CLK_TOP_MSDC50_2_SEL>;
>> +    bus-width = <4>;
>> +    cap-sd-highspeed;
>> +    cap-sdio-irq;
>> +    hs400-ds-delay = <0x12012>;
>> +    keep-power-in-suspend;
> 
> Why keep-power-in-suspend?

This slot is mainly used for WiFi / BT / GPS chip, which need to keep powered on.
I guess this is to avoid to do full re-init, re-load firmware, lose context, wake-up from it...
TBH, I didn't work on it, all I know is MTK need it.

-- 
Regards,
Alexandre



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