[...]
> >>+static int rtsx_usb_suspend(struct usb_interface *intf, pm_message_t message)
> >>+{
> >>+ struct rtsx_ucr *ucr =
> >>+ (struct rtsx_ucr *)usb_get_intfdata(intf);
> >>+
> >>+ dev_dbg(&intf->dev, "%s called with pm message 0x%04u\n",
> >>+ __func__, message.event);
> >>+
> >>+ mutex_lock(&ucr->dev_mutex);
> >>+ rtsx_usb_turn_off_led(ucr);
> >
> >When is this turned on again?
> >
>
> The LED is not in a permanent cut-off state after here. It is called
> to guarantee the LED is off during suspend to save more power. It
> could be lit up in the card host drivers(e.g. rtsx_usb_sdmmc.c)
> anytime whenever necessary.
>
> This has been asked may times. I'm considering putting some comment
> in next revision.
Yes, please do.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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