On 8/29/24 6:32 PM, Kalle Valo wrote:
Marek Vasut <marex@xxxxxxx> writes:
Since this driver does not reload the firmware into the card on
resume, the card has to be kept powered on during suspend/resume
cycle. The card can NOT be powered off during suspend/resume cycle,
otherwise the firmware is lost.
Without this flag, the card may be powered off during suspend/resume
cycle. It possibly does not happen on the Atmel controller, but it
does on the STM32MP15xx ARM MMCI one.
Now, since the card does consume about the same amount of power
whether it is powered OFF or whether it is powered ON but suspended, I
opt for the later option -- keep the card powered ON, suspend it, and
that's what this patch does. This also allows us to support WoWlan
then.
Are you also taking into account hibernation? During hibernation the
device will be powered off. I can't remember the details right now but
wanted to mention this.
I don't think I am. Isn't hibernation actually a full shutdown, so the
hardware does get reinitialized ?
