提交 c646cbf1 编写于 作者: A Alex Elder 提交者: Mike Turquette

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: NAlex Elder <elder@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>
上级 afbd1a0c
......@@ -277,6 +277,10 @@ static int clk_debug_create_one(struct clk *clk, struct dentry *pdentry)
if (!d)
goto err_out;
if (clk->ops->debug_init)
if (clk->ops->debug_init(clk->hw, clk->dentry))
goto err_out;
ret = 0;
goto out;
......
......@@ -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);
};
/**
......
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