tree 0f24dc879d9645935974489d152dd83815fcff68
parent c5d5e9c40fc6cabedd5fdc7441e6e9d37f5c9bba
author Haavard Skinnemoen <haavard.skinnemoen@atmel.com> 1216901937 +0200
committer Pierre Ossman <drzeus@drzeus.cx> 1217114776 +0200

mmc: Export internal host state through debugfs

When CONFIG_DEBUG_FS is set, create a few files under /sys/kernel/debug
containing information about an mmc host's internal state. Currently,
just a single file is created, "ios", which contains information about
the current operating parameters for the bus (clock speed, bus width,
etc.)

Host drivers can add additional files and directories under the host's
root directory by passing the debugfs_root field in struct mmc_host as
the 'parent' parameter to debugfs_create_*.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>