| commit | 30201e7f3ac639fe98fcd25d40346b65dde9ecba | |
| author | Ohad Ben-Cohen <ohad@wizery.com> | |
| Sun, 28 Nov 2010 05:21:28 +0000 (28 07:21 +0200) | ||
| committer | Chris Ball <cjb@laptop.org> | |
| Sun, 9 Jan 2011 03:48:04 +0000 (8 22:48 -0500) | ||
| tree | e2abf06a8dbb1cd83d8eeefcaa65440861218dc9 | treesnapshot (tar.gz zip) |
| parent | 8f230f454fe04ba326ffaead3a6b88dcf44eaf4b | commitdiff |
mmc: skip detection of nonremovable cards on rescan
mmc_rescan() checks whether registered cards are still present before
skipping them, by calling the bus-specific ->detect() handler.
With buses that support runtime PM, the card may be powered off at
this point, so they need to be powered on and fully reinitialized before
->detect() executes.
This whole process is redundant with nonremovable cards; in those cases,
we can safely skip calling ->detect() and implicitly assume its success.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Reviewed-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
mmc_rescan() checks whether registered cards are still present before
skipping them, by calling the bus-specific ->detect() handler.
With buses that support runtime PM, the card may be powered off at
this point, so they need to be powered on and fully reinitialized before
->detect() executes.
This whole process is redundant with nonremovable cards; in those cases,
we can safely skip calling ->detect() and implicitly assume its success.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Reviewed-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
| drivers/mmc/core/core.c | diffblobblamehistory |