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authorAlex Elder <elder@linaro.org>2013-09-12 18:07:34 -0500
committerAlex Elder <elder@linaro.org>2014-03-31 08:01:13 -0500
commitca2003f784431a1077e36d20caece3d0dea00e78 (patch)
tree9ba8d349c1477833f55c70c8fc88ba59c8c5b5c4 /include/linux
parent59c03da785f7b07b8c2e19f489451608f51e6225 (diff)
clk: support hardware-specific debugfs entries
Add a new clk_ops->debug_init method to allow a clock hardware driver to populate the clock's debugfs directory with entries beyond those common for every clock. Signed-off-by: Alex Elder <elder@linaro.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/clk-provider.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 939533da93a..511917416fb 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -32,6 +32,7 @@
#define CLK_GET_ACCURACY_NOCACHE BIT(8) /* do not use the cached clk accuracy */
struct clk_hw;
+struct dentry;
/**
* struct clk_ops - Callback operations for hardware clocks; these are to
@@ -127,6 +128,12 @@ struct clk_hw;
* separately via calls to .set_parent and .set_rate.
* Returns 0 on success, -EERROR otherwise.
*
+ * @debug_init: Set up type-specific debugfs entries for this clock. This
+ * is called once, after the debugfs directory entry for this
+ * clock has been created. The dentry pointer representing that
+ * directory is provided as an argument. Called with
+ * prepare_lock held. Returns 0 on success, -EERROR otherwise.
+ *
*
* The clk_enable/clk_disable and clk_prepare/clk_unprepare pairs allow
* implementations to split any work between atomic (enable) and sleepable
@@ -165,6 +172,7 @@ struct clk_ops {
unsigned long (*recalc_accuracy)(struct clk_hw *hw,
unsigned long parent_accuracy);
void (*init)(struct clk_hw *hw);
+ int (*debug_init)(struct clk_hw *hw, struct dentry *dentry);
};
/**