Merge tag 'clk-for-linus-3.15' of git://git.linaro.org/people/mike.turquette/linux

Pull clock framework changes from Mike Turquette:
 "The clock framework changes for 3.15 look similar to past pull
  requests.  Mostly clock driver updates, more Device Tree support in
  the form of common functions useful across platforms and a handful of
  features and fixes to the framework core"

* tag 'clk-for-linus-3.15' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
  clk: shmobile: fix setting paretn clock rate
  clk: shmobile: rcar-gen2: fix lb/sd0/sd1/sdh clock parent to pll1
  clk: Fix minor errors in of_clk_init() function comments
  clk: reverse default clk provider initialization order in of_clk_init()
  clk: sirf: update copyright years to 2014
  clk: mmp: try to use closer one when do round rate
  clk: mmp: fix the wrong calculation formula
  clk: mmp: fix wrong mask when calculate denominator
  clk: st: Adds quadfs clock binding
  clk: st: Adds clockgen-vcc and clockgen-mux clock binding
  clk: st: Adds clockgen clock binding
  clk: st: Adds divmux and prediv clock binding
  clk: st: Support for A9 MUX clocks
  clk: st: Support for ClockGenA9/DDR/GPU
  clk: st: Support for QUADFS inside ClockGenB/C/D/E/F
  clk: st: Support for VCC-mux and MUX clocks
  clk: st: Support for PLLs inside ClockGenA(s)
  clk: st: Support for DIVMUX and PreDiv Clocks
  clk: support hardware-specific debugfs entries
  clk: s2mps11: Use of_get_child_by_name
  ...

4 files changed, 62 insertions, 0 deletions

diff --git a/include/dt-bindings/clock/hi3620-clock.h b/include/dt-bindings/clock/hi3620-clock.h
index 6eaa6a45e110..21b9d0e2eb0c 100644
--- a/include/dt-bindings/clock/hi3620-clock.h
+++ b/include/dt-bindings/clock/hi3620-clock.h
@@ -147,6 +147,11 @@
 #define HI3620_MMC_CLK3         217
 #define HI3620_MCU_CLK          218
 
+#define HI3620_SD_CIUCLK        0
+#define HI3620_MMC_CIUCLK1      1
+#define HI3620_MMC_CIUCLK2      2
+#define HI3620_MMC_CIUCLK3      3
+
 #define HI3620_NR_CLKS          219
 
 #endif  /* __DTS_HI3620_CLOCK_H */
diff --git a/include/dt-bindings/clock/hip04-clock.h b/include/dt-bindings/clock/hip04-clock.h
new file mode 100644
index 000000000000..695e61cd1523
--- /dev/null
+++ b/include/dt-bindings/clock/hip04-clock.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2013-2014 Hisilicon Limited.
+ * Copyright (c) 2013-2014 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef __DTS_HIP04_CLOCK_H
+#define __DTS_HIP04_CLOCK_H
+
+#define HIP04_NONE_CLOCK        0
+
+/* fixed rate & fixed factor clocks */
+#define HIP04_OSC50M            1
+#define HIP04_CLK_50M           2
+#define HIP04_CLK_168M          3
+
+#define HIP04_NR_CLKS           64
+
+#endif  /* __DTS_HIP04_CLOCK_H */
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);
 };
 
 /**
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 0dd91148165e..fb5e097d8f72 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -78,8 +78,22 @@ struct clk_notifier_data {
         unsigned long           new_rate;
 };
 
+/**
+ * clk_notifier_register: register a clock rate-change notifier callback
+ * @clk: clock whose rate we are interested in
+ * @nb: notifier block with callback function pointer
+ *
+ * ProTip: debugging across notifier chains can be frustrating. Make sure that
+ * your notifier callback function prints a nice big warning in case of
+ * failure.
+ */
 int clk_notifier_register(struct clk *clk, struct notifier_block *nb);
 
+/**
+ * clk_notifier_unregister: unregister a clock rate-change notifier callback
+ * @clk: clock whose rate we are no longer interested in
+ * @nb: notifier block which will be unregistered
+ */
 int clk_notifier_unregister(struct clk *clk, struct notifier_block *nb);
 
 /**