On 10/02/16 14:51, Ludovic Desroches wrote: > Hi Adrian, > > On Wed, Feb 10, 2016 at 01:50:44PM +0200, Adrian Hunter wrote: >> On 10/02/16 11:58, Ludovic Desroches wrote: >>> By putting the device in suspend at the end of the probe, it is >>> impossible to wake up on non software event such as card >>> insertion/removal. >>> >>> Signed-off-by: Ludovic Desroches <ludovic.desroc...@atmel.com> >>> --- >>> >>> Hi, >>> >>> Since I had no feedback on this topic: >>> http://permalink.gmane.org/gmane.linux.kernel.mmc/35160 >>> >>> I would like to no more put the device in suspend at the end of the probe. >>> If >>> my device is suspended at the end of the probe, I have no issue to resume on >>> a software event such as mounting my sdcard but hardware event such as card >>> insertion and removal do not trigger a resume. >> >> You can't use runtime PM unless you have a way to wake-up. >> > > Thanks for your feedback. I am a bit disappointed since Ulf advised me to use > runtime PM instead of system PM. > >> Currently, sdhci disables card detect interrupts when runtime suspended, >> and drivers use a card-detect GPIO to wake-up. >> > > It is what I have seen going through the sdhci layer. So next question is: > is it normal to not take care of card detect interrupts? We keep enabled > some IRQs probably for SDIO modules IRQ but not for card detection. I > don't understand the reason.
Does sdhci-of-at91.c generate card detect interrupts while runtime suspended?
