> MMC host has a sysfs interface to let user specify the auto suspended delay. > Each slot of the host controller can have a different delay for runtime > suspended. > out: > + /* power off host controller */ > + pm_runtime_put(&host->class_dev); If you want to use autosuspend feature, then you need to use the function pm_runtime_put_autosuspend(). I'm also worried about this patch not taking in account the 8 clock cycles before shutting down the clock, contrary to the clock gating fw. If you power down hc, you will also gate the clock. So the sdio protocol might not be strictly followed. Regards, Pierre --------------------------------------------------------------------- Intel Corporation SAS (French simplified joint stock company) Registered headquarters: "Les Montalets"- 2, rue de Paris, 92196 Meudon Cedex, France Registration Number: 302 456 199 R.C.S. NANTERRE Capital: 4,572,000 Euros This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html