Commit 5c7f0e08 authored Dec 19, 2011 by Ohad Ben-Cohen Committed by Chris Ball Dec 19, 2011

Revert "mmc: enable runtime PM by default"

When SDIO runtime PM was originally introduced, we immediately faced
two regressions with two different chipsets, and in response decided
not to enable it by default.

With the recent work on the 8686 we hoped we found all the gotchas,
so 08da834a did make sense (at least experimentally).

Unfortunately we now see that some setups out there still refuse to
work when SDIO runtime PM is enabled by default (see
http://www.spinics.net/lists/linux-mmc/msg11161.html

), and obviously
we can't live with these kind of regressions.

This reverts commit 08da834a.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Daniel Drake <dsd@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

parent 29495aa0

drivers/mmc/core/host.c

+0 −11

Original line number	Original line	Diff line number	Diff line
	@@ -302,17 +302,6 @@ struct mmc_host mmc_alloc_host(int extra, struct device dev)
	host->max_blk_size = 512;		host->max_blk_size = 512;
	host->max_blk_count = PAGE_CACHE_SIZE / 512;		host->max_blk_count = PAGE_CACHE_SIZE / 512;

	/*
	* Enable runtime power management by default. This flag was added due
	* to runtime power management causing disruption for some users, but
	* the power on/off code has been improved since then.
	*
	* We'll enable this flag by default as an experiment, and if no
	* problems are reported, we will follow up later and remove the flag
	* altogether.
	*/
	host->caps = MMC_CAP_POWER_OFF_CARD;

	return host;		return host;

	free:		free:

Admin message