Hi,
The patch "SDIO Runtime PM Support" implements the pm for wl12xx driver this way: the power for sdio is on whenever the WLAN interface is on, and the power is down only when the interface is down. Is it possible to do pm in a more fine-grained way, such as only turning on the power when reading/writing through sdio? An example is the mmc_blk_issue_rq() in drivers/mmc/card/block.c, where the host is released when there are no more requests. And in turn the host driver, such as omap_hsmmc.c, calls pm_runtime_put_autosuspend(). Is there any fundamental argument against doing fine-grained runtime pm for sdio? Or is it just too much trouble for too little power saved? Thank you! -- Regards, Chao Xu -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
