percpu: add preemption checks to __this_cpu ops

[karo-tx-linux.git] / include / linux / clk-provider.h

diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 448b2294820fcf70ac442af1a2fcd4974dc340c3..511917416fb003bd27ba5817fb6c8ee1af8cf498 100644 (file)
--- 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);
 };
 
 /**
@@ -544,6 +552,20 @@ static inline const char *of_clk_get_parent_name(struct device_node *np,
  * for improved portability across platforms
  */
 
+#if IS_ENABLED(CONFIG_PPC)
+
+static inline u32 clk_readl(u32 __iomem *reg)
+{
+       return ioread32be(reg);
+}
+
+static inline void clk_writel(u32 val, u32 __iomem *reg)
+{
+       iowrite32be(val, reg);
+}
+
+#else  /* platform dependent I/O accessors */
+
 static inline u32 clk_readl(u32 __iomem *reg)
 {
        return readl(reg);
@@ -554,5 +576,7 @@ static inline void clk_writel(u32 val, u32 __iomem *reg)
        writel(val, reg);
 }
 
+#endif /* platform dependent I/O accessors */
+
 #endif /* CONFIG_COMMON_CLK */
 #endif /* CLK_PROVIDER_H */