On 4/2/20 2:53 PM, Pascal PAILLET-LME wrote:
Hi Marek,
Hi, [...]
> vdd: buck3 { > regulator-name = "vdd"; > - regulator-min-microvolt = <3300000>; > - regulator-max-microvolt = <3300000>; > + regulator-min-microvolt = <2900000>; > + regulator-max-microvolt = <2900000>; > regulator-always-on; > st,mask_reset; > regulator-initial-mode = <0>; @@ -
268,6 +279,7 @@
> regulator-name = "vbus_otg"; > interrupts = <IT_OCP_OTG 0>; > interrupt-parent = <&pmic>; > + regulator-active-discharge = <1>; It seems this setting introduced other-consumption, it should not be
used.
Other-consumption ? What does that mean ?
It's a typo, Patrick means over-consumption.
Ah. Do you have any details on that ?
Sorry for typo.
No details on my side, it was a Pascal Paillet's direct feedback (Maintainer of STPMIC1 driver in Linux).
You can enable the active discharge on the STPMIC1's VBUSOTG. But, as soon as a USB host peripheral (such as laptop) will attach and provide VBUS, there will be a ~8mA continuous power consumption on VBUS through this OTG active discharge. There is no functional issue behind this 8mA; but you need to know that 8mA is not compliant with the USB suspend constraint (2.5mA max).
So why is it in there ?