Andy Shevchenko 703aae3d09 mmc: add a file to debugfs for changing host clock at runtime ... For debugging power management features it is convenient to have the possibility of changing the MMC host controller clock at runtime. This patch adds a 'clock' file for this under the MMC host root of debugfs. Usage is as follows: # cat /sys/kernel/debug/mmc0/clock 52000000 # echo "1000000000" > /sys/kernel/debug/mmc0/clock # cat /sys/kernel/debug/mmc0/clock 52000000 # echo "48000000" > /sys/kernel/debug/mmc0/clock # cat /sys/kernel/debug/mmc0/clock 48000000 The middle example shows limits being applied by the host driver. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> [cjb: modify changelog language] Signed-off-by: Chris Ball <cjb@laptop.org>		2010-10-23 21:11:20 +08:00
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card	mmc: name mmc queue thread by host index	2010-10-23 21:11:16 +08:00
core	mmc: add a file to debugfs for changing host clock at runtime	2010-10-23 21:11:20 +08:00
host	mmc: sdhci: allow for eMMC 74 clock generation by controller	2010-10-23 21:11:20 +08:00
Kconfig	mmc: explicitly mention SDIO support in Kconfig	2008-10-12 11:04:36 +02:00
Makefile	mmc: Makefile: Fix EXTRA_CFLAGS assignment	2010-10-23 21:11:15 +08:00