Re: [PATCHv3 3/6] arm64: dts: amlogic: odroidc2: Fix the chip enable signal for usb power

[Martin Blumenstingl]

Hi Anand,

On Tue, Aug 17, 2021 at 6:17 AM Anand Moon <linux.amoon@xxxxxxxxx> wrote:
>
> Fix the chip enable signal changing from Active High to Active Low
> to enable input power to USB power. Also updated signal name as per
> the schematics.
according to [0] (page 12) Odroid-C2 uses an "RT9715EGB" for USB OTG power
The datasheet for that power switch [1] mentions on page page 1 that
the "E" stands for "E : 1.1A/Active High"

Can you please elaborate how you have tested this to confirm that
active low is the correct polarity?


Best regards,
Martin


[0] https://dn.odroid.com/S905/Schematic/odroid-c2_rev0.1_20150930.pdf
[1] https://www.richtek.com/assets/product_file/RT9715/DS9715-03.pdf