diff options
| author | Alex Elder <elder@linaro.org> | 2013-09-12 18:07:34 -0500 |
|---|---|---|
| committer | Alex Elder <elder@linaro.org> | 2014-02-25 08:26:29 -0600 |
| commit | 155905d1a90748abc34a6bb4de75dfa4b9c0b047 (patch) | |
| tree | 8ca529d6a62e28b93448bc3d3f4f20523b45c94a | |
| parent | 7f70b2ca22df135487db5c16c803457bdccbb358 (diff) | |
clk: support hardware-specific debugfs entriestracking-capri-support-llct-20140311.0tracking-capri-support-llct-20140305.0tracking-capri-support-llct-20140304.0tracking-capri-support-llct-20140228.0
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>
| -rw-r--r-- | drivers/clk/clk.c | 4 | ||||
| -rw-r--r-- | include/linux/clk-provider.h | 8 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 5517944495d8..64b579a77fc4 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -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; diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 939533da93a7..511917416fb0 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); }; /** |