diff options
| author | Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2011-11-04 13:53:19 +0100 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-01-11 23:58:40 -0500 |
| commit | df16219f365f7f5a2d88a6e123251d57255cca3f (patch) | |
| tree | 0eca076f1abf8a0161f8fb66e1f98b5a003c900b /include/linux/mmc | |
| parent | 052d81da6e6f0f8839ef6d5a46f215fc8cd99d5a (diff) | |
mmc: debugfs: expose the SDCLK frq in sys ios
This patch is to expose the actual SDCLK frequency in
/sys/kernel/debug/mmcX/ios entry.
For example, if the max clk for a normal speed card is 20MHz this
is reported in /sys/kernel/debug/mmcX/ios. Unfortunately the actual
SDCLK frequency (i.e. Baseclock / divisor) is not reported at all:
for example, in that case, on Arasan HC, it should be 48/4=12 (MHz).
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/host.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index a3ac9c48e5de..cea064f73514 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -323,6 +323,8 @@ struct mmc_host { struct fault_attr fail_mmc_request; #endif + unsigned int actual_clock; /* Actual HC clock rate */ + unsigned long private[0] ____cacheline_aligned; }; |