From f3b19aa5cab65f7e73613aa37f6851ce56b794d1 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 27 Feb 2015 17:54:14 +0200
Subject: ARM: OMAP2+: clock: export driver API to setup/get clock features

As most of the clock driver support code is going to be moved under
drivers/clk/ti, an API for setting / getting the SoC specific clock
features is needed. This patch provides this API and changes the
existing code to use it.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 drivers/clk/ti/clk.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'drivers/clk/ti/clk.c')

diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 0ebe5c51062b..e65ae4acff9c 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -30,6 +30,8 @@
 struct ti_clk_ll_ops *ti_clk_ll_ops;
 static struct device_node *clocks_node_ptr[CLK_MAX_MEMMAPS];
 
+struct ti_clk_features ti_clk_features;
+
 /**
  * ti_dt_clocks_register - register DT alias clocks during boot
  * @oclks: list of clocks to register
@@ -311,3 +313,26 @@ int __init ti_clk_register_legacy_clks(struct ti_clk_alias *clks)
 	return 0;
 }
 #endif
+
+/**
+ * ti_clk_setup_features - setup clock features flags
+ * @features: features definition to use
+ *
+ * Initializes the clock driver features flags based on platform
+ * provided data. No return value.
+ */
+void __init ti_clk_setup_features(struct ti_clk_features *features)
+{
+	memcpy(&ti_clk_features, features, sizeof(*features));
+}
+
+/**
+ * ti_clk_get_features - get clock driver features flags
+ *
+ * Get TI clock driver features description. Returns a pointer
+ * to the current feature setup.
+ */
+const struct ti_clk_features *ti_clk_get_features(void)
+{
+	return &ti_clk_features;
+}
-- 
cgit v1.2.3


From a5aa8a603efa25dd41220bff990da025c93b632b Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Tue, 3 Mar 2015 10:51:01 +0200
Subject: clk: ti: move omap2_clk_enable_init_clocks under clock driver

This is no longer used outside clock driver, so move it under the driver
and remove the export for it from the global header file.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/clock.c | 24 ------------------------
 drivers/clk/ti/clk-2xxx.c   |  2 ++
 drivers/clk/ti/clk-33xx.c   |  2 ++
 drivers/clk/ti/clk-3xxx.c   |  1 +
 drivers/clk/ti/clk-816x.c   |  2 ++
 drivers/clk/ti/clk.c        | 24 ++++++++++++++++++++++++
 drivers/clk/ti/clock.h      |  1 +
 include/linux/clk/ti.h      |  1 -
 8 files changed, 32 insertions(+), 25 deletions(-)

(limited to 'drivers/clk/ti/clk.c')

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 42ce860e1d4c..234cedf8967d 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -576,30 +576,6 @@ static int __init omap_clk_setup(char *str)
 }
 __setup("mpurate=", omap_clk_setup);
 
-/**
- * omap2_clk_enable_init_clocks - prepare & enable a list of clocks
- * @clk_names: ptr to an array of strings of clock names to enable
- * @num_clocks: number of clock names in @clk_names
- *
- * Prepare and enable a list of clocks, named by @clk_names.  No
- * return value. XXX Deprecated; only needed until these clocks are
- * properly claimed and enabled by the drivers or core code that uses
- * them.  XXX What code disables & calls clk_put on these clocks?
- */
-void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks)
-{
-	struct clk *init_clk;
-	int i;
-
-	for (i = 0; i < num_clocks; i++) {
-		init_clk = clk_get(NULL, clk_names[i]);
-		if (WARN(IS_ERR(init_clk), "could not find init clock %s\n",
-				clk_names[i]))
-			continue;
-		clk_prepare_enable(init_clk);
-	}
-}
-
 const struct clk_hw_omap_ops clkhwops_wait = {
 	.find_idlest	= omap2_clk_dflt_find_idlest,
 	.find_companion	= omap2_clk_dflt_find_companion,
diff --git a/drivers/clk/ti/clk-2xxx.c b/drivers/clk/ti/clk-2xxx.c
index c808ab3d2bb2..bd8790be2ab1 100644
--- a/drivers/clk/ti/clk-2xxx.c
+++ b/drivers/clk/ti/clk-2xxx.c
@@ -19,6 +19,8 @@
 #include <linux/clk-provider.h>
 #include <linux/clk/ti.h>
 
+#include "clock.h"
+
 static struct ti_dt_clk omap2xxx_clks[] = {
 	DT_CLK(NULL, "func_32k_ck", "func_32k_ck"),
 	DT_CLK(NULL, "secure_32k_ck", "secure_32k_ck"),
diff --git a/drivers/clk/ti/clk-33xx.c b/drivers/clk/ti/clk-33xx.c
index 028b33783d38..733f9d374d0f 100644
--- a/drivers/clk/ti/clk-33xx.c
+++ b/drivers/clk/ti/clk-33xx.c
@@ -19,6 +19,8 @@
 #include <linux/clk-provider.h>
 #include <linux/clk/ti.h>
 
+#include "clock.h"
+
 static struct ti_dt_clk am33xx_clks[] = {
 	DT_CLK(NULL, "clk_32768_ck", "clk_32768_ck"),
 	DT_CLK(NULL, "clk_rc32k_ck", "clk_rc32k_ck"),
diff --git a/drivers/clk/ti/clk-3xxx.c b/drivers/clk/ti/clk-3xxx.c
index 757636d166cf..bb3b88359daf 100644
--- a/drivers/clk/ti/clk-3xxx.c
+++ b/drivers/clk/ti/clk-3xxx.c
@@ -19,6 +19,7 @@
 #include <linux/clk-provider.h>
 #include <linux/clk/ti.h>
 
+#include "clock.h"
 
 static struct ti_dt_clk omap3xxx_clks[] = {
 	DT_CLK(NULL, "apb_pclk", "dummy_apb_pclk"),
diff --git a/drivers/clk/ti/clk-816x.c b/drivers/clk/ti/clk-816x.c
index 9451e651a1ff..c69352b24dba 100644
--- a/drivers/clk/ti/clk-816x.c
+++ b/drivers/clk/ti/clk-816x.c
@@ -14,6 +14,8 @@
 #include <linux/clk-provider.h>
 #include <linux/clk/ti.h>
 
+#include "clock.h"
+
 static struct ti_dt_clk dm816x_clks[] = {
 	DT_CLK(NULL, "sys_clkin", "sys_clkin_ck"),
 	DT_CLK(NULL, "timer_sys_ck", "sys_clkin_ck"),
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index e65ae4acff9c..5baea03cfc92 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -336,3 +336,27 @@ const struct ti_clk_features *ti_clk_get_features(void)
 {
 	return &ti_clk_features;
 }
+
+/**
+ * omap2_clk_enable_init_clocks - prepare & enable a list of clocks
+ * @clk_names: ptr to an array of strings of clock names to enable
+ * @num_clocks: number of clock names in @clk_names
+ *
+ * Prepare and enable a list of clocks, named by @clk_names.  No
+ * return value. XXX Deprecated; only needed until these clocks are
+ * properly claimed and enabled by the drivers or core code that uses
+ * them.  XXX What code disables & calls clk_put on these clocks?
+ */
+void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks)
+{
+	struct clk *init_clk;
+	int i;
+
+	for (i = 0; i < num_clocks; i++) {
+		init_clk = clk_get(NULL, clk_names[i]);
+		if (WARN(IS_ERR(init_clk), "could not find init clock %s\n",
+			 clk_names[i]))
+			continue;
+		clk_prepare_enable(init_clk);
+	}
+}
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index 9b51021f509a..4b26af8a273d 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -171,6 +171,7 @@ int ti_clk_register_legacy_clks(struct ti_clk_alias *clks);
 
 void omap2_init_clk_hw_omap_clocks(struct clk *clk);
 int of_ti_clk_autoidle_setup(struct device_node *node);
+void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
 
 extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
 extern const struct clk_hw_omap_ops clkhwops_iclk;
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 320e107f9a7a..61deace552ec 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -290,7 +290,6 @@ int omap2_clk_disable_autoidle_all(void);
 int omap2_clk_enable_autoidle_all(void);
 int omap2_clk_allow_idle(struct clk *clk);
 int omap2_clk_deny_idle(struct clk *clk);
-void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
 int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
 			 unsigned long parent_rate);
 int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
-- 
cgit v1.2.3


From e9e63088e4f93cf4ed7999294c09905b7dcb4d32 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Mon, 27 Apr 2015 21:55:42 +0300
Subject: clk: ti: remove exported ll_ops struct, instead add an API for
 registration

We should avoid exporting data from drivers, instead use an API for
registering the clock low level operations.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/clock.c  | 17 +++++++++++++----
 arch/arm/mach-omap2/clock.h  |  1 +
 arch/arm/mach-omap2/io.c     |  2 ++
 drivers/clk/ti/clk.c         | 21 +++++++++++++++++++++
 drivers/clk/ti/clock.h       |  2 ++
 drivers/clk/ti/clockdomain.c |  2 ++
 include/linux/clk/ti.h       |  3 +--
 7 files changed, 42 insertions(+), 6 deletions(-)

(limited to 'drivers/clk/ti/clk.c')

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 99875dba803a..40a88c2e4016 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -112,6 +112,19 @@ static struct ti_clk_ll_ops omap_clk_ll_ops = {
 	.cm_split_idlest_reg = cm_split_idlest_reg,
 };
 
+/**
+ * omap2_clk_setup_ll_ops - setup clock driver low-level ops
+ *
+ * Sets up clock driver low-level platform ops. These are needed
+ * for register accesses and various other misc platform operations.
+ * Returns 0 on success, -EBUSY if low level ops have been registered
+ * already.
+ */
+int __init omap2_clk_setup_ll_ops(void)
+{
+	return ti_clk_setup_ll_ops(&omap_clk_ll_ops);
+}
+
 /**
  * omap2_clk_provider_init - initialize a clock provider
  * @match_table: DT device table to match for devices to init
@@ -130,8 +143,6 @@ int __init omap2_clk_provider_init(struct device_node *np, int index,
 {
 	struct clk_iomap *io;
 
-	ti_clk_ll_ops = &omap_clk_ll_ops;
-
 	io = kzalloc(sizeof(*io), GFP_KERNEL);
 
 	io->regmap = syscon;
@@ -155,8 +166,6 @@ void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem)
 {
 	struct clk_iomap *io;
 
-	ti_clk_ll_ops = &omap_clk_ll_ops;
-
 	io = memblock_virt_alloc(sizeof(*io), 0);
 
 	io->mem = mem;
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 1986ab216b1a..a7051d6a05e9 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -83,6 +83,7 @@ struct regmap;
 int __init omap2_clk_provider_init(struct device_node *np, int index,
 				   struct regmap *syscon, void __iomem *mem);
 void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem);
+int __init omap2_clk_setup_ll_ops(void);
 
 void __init ti_clk_init_features(void);
 #endif
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 74678565cd97..a253aafbb9a2 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -722,6 +722,8 @@ int __init omap_clk_init(void)
 
 	ti_clk_init_features();
 
+	omap2_clk_setup_ll_ops();
+
 	if (of_have_populated_dt()) {
 		ret = omap_control_init();
 		if (ret)
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 5baea03cfc92..58b83e0af90f 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -32,6 +32,27 @@ static struct device_node *clocks_node_ptr[CLK_MAX_MEMMAPS];
 
 struct ti_clk_features ti_clk_features;
 
+/**
+ * ti_clk_setup_ll_ops - setup low level clock operations
+ * @ops: low level clock ops descriptor
+ *
+ * Sets up low level clock operations for TI clock driver. This is used
+ * to provide various callbacks for the clock driver towards platform
+ * specific code. Returns 0 on success, -EBUSY if ll_ops have been
+ * registered already.
+ */
+int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops)
+{
+	if (ti_clk_ll_ops) {
+		pr_err("Attempt to register ll_ops multiple times.\n");
+		return -EBUSY;
+	}
+
+	ti_clk_ll_ops = ops;
+
+	return 0;
+}
+
 /**
  * ti_dt_clocks_register - register DT alias clocks during boot
  * @oclks: list of clocks to register
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index 3c43125b9cc9..d4d232fd89bc 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -280,4 +280,6 @@ long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw,
 					unsigned long *best_parent_rate,
 					struct clk_hw **best_parent_clk);
 
+extern struct ti_clk_ll_ops *ti_clk_ll_ops;
+
 #endif
diff --git a/drivers/clk/ti/clockdomain.c b/drivers/clk/ti/clockdomain.c
index 61ef87b1a688..80a7b6944d10 100644
--- a/drivers/clk/ti/clockdomain.c
+++ b/drivers/clk/ti/clockdomain.c
@@ -21,6 +21,8 @@
 #include <linux/of_address.h>
 #include <linux/clk/ti.h>
 
+#include "clock.h"
+
 #undef pr_fmt
 #define pr_fmt(fmt) "%s: " fmt, __func__
 
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 5eccdf5c0e84..5b644313e38a 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -235,8 +235,6 @@ struct ti_clk_ll_ops {
 				       u8 *idlest_reg_id);
 };
 
-extern struct ti_clk_ll_ops *ti_clk_ll_ops;
-
 #define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw)
 
 void omap2_init_clk_clkdm(struct clk_hw *clk);
@@ -255,6 +253,7 @@ unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk);
 void ti_dt_clk_init_provider(struct device_node *np, int index);
 void ti_dt_clk_init_retry_clks(void);
 void ti_dt_clockdomains_setup(void);
+int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops);
 
 int omap3430_dt_clk_init(void);
 int omap3630_dt_clk_init(void);
-- 
cgit v1.2.3


From 989feafb84118a840ff21250a1e5f516f43e3dbb Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Mon, 27 Apr 2015 22:23:06 +0300
Subject: clk: ti: move low-level access and init code under clock driver

With most of the clock code under clock driver already, the low-level
register access code, and the init code for the same, is no longer
needed outside the clock driver. Thus, these can be moved under clock
driver also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 arch/arm/mach-omap2/clock.c | 84 ---------------------------------------------
 arch/arm/mach-omap2/clock.h |  5 ---
 drivers/clk/ti/clk.c        | 75 ++++++++++++++++++++++++++++++++++++++--
 include/linux/clk/ti.h      |  7 +++-
 4 files changed, 78 insertions(+), 93 deletions(-)

(limited to 'drivers/clk/ti/clk.c')

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 79cec5fbbe74..4340ba6524d1 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -23,9 +23,7 @@
 #include <linux/clk-provider.h>
 #include <linux/io.h>
 #include <linux/bitops.h>
-#include <linux/regmap.h>
 #include <linux/of_address.h>
-#include <linux/bootmem.h>
 #include <asm/cpu.h>
 
 #include <trace/events/power.h>
@@ -55,41 +53,7 @@ u16 cpu_mask;
 #define OMAP3PLUS_DPLL_FINT_MIN		32000
 #define OMAP3PLUS_DPLL_FINT_MAX		52000000
 
-struct clk_iomap {
-	struct regmap *regmap;
-	void __iomem *mem;
-};
-
-static struct clk_iomap *clk_memmaps[CLK_MAX_MEMMAPS];
-
-static void clk_memmap_writel(u32 val, void __iomem *reg)
-{
-	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-	struct clk_iomap *io = clk_memmaps[r->index];
-
-	if (io->regmap)
-		regmap_write(io->regmap, r->offset, val);
-	else
-		writel_relaxed(val, io->mem + r->offset);
-}
-
-static u32 clk_memmap_readl(void __iomem *reg)
-{
-	u32 val;
-	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
-	struct clk_iomap *io = clk_memmaps[r->index];
-
-	if (io->regmap)
-		regmap_read(io->regmap, r->offset, &val);
-	else
-		val = readl_relaxed(io->mem + r->offset);
-
-	return val;
-}
-
 static struct ti_clk_ll_ops omap_clk_ll_ops = {
-	.clk_readl = clk_memmap_readl,
-	.clk_writel = clk_memmap_writel,
 	.clkdm_clk_enable = clkdm_clk_enable,
 	.clkdm_clk_disable = clkdm_clk_disable,
 	.cm_wait_module_ready = omap_cm_wait_module_ready,
@@ -109,54 +73,6 @@ int __init omap2_clk_setup_ll_ops(void)
 	return ti_clk_setup_ll_ops(&omap_clk_ll_ops);
 }
 
-/**
- * omap2_clk_provider_init - initialize a clock provider
- * @match_table: DT device table to match for devices to init
- * @np: device node pointer for the this clock provider
- * @index: index for the clock provider
- + @syscon: syscon regmap pointer
- * @mem: iomem pointer for the clock provider memory area, only used if
- *	 syscon is not provided
- *
- * Initializes a clock provider module (CM/PRM etc.), registering
- * the memory mapping at specified index and initializing the
- * low level driver infrastructure. Returns 0 in success.
- */
-int __init omap2_clk_provider_init(struct device_node *np, int index,
-				   struct regmap *syscon, void __iomem *mem)
-{
-	struct clk_iomap *io;
-
-	io = kzalloc(sizeof(*io), GFP_KERNEL);
-
-	io->regmap = syscon;
-	io->mem = mem;
-
-	clk_memmaps[index] = io;
-
-	ti_dt_clk_init_provider(np, index);
-
-	return 0;
-}
-
-/**
- * omap2_clk_legacy_provider_init - initialize a legacy clock provider
- * @index: index for the clock provider
- * @mem: iomem pointer for the clock provider memory area
- *
- * Initializes a legacy clock provider memory mapping.
- */
-void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem)
-{
-	struct clk_iomap *io;
-
-	io = memblock_virt_alloc(sizeof(*io), 0);
-
-	io->mem = mem;
-
-	clk_memmaps[index] = io;
-}
-
 /*
  * OMAP2+ specific clock functions
  */
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index f3dc04cd5538..67da640ba1c7 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -75,11 +75,6 @@ extern const struct clkops clkops_omap2_dflt;
 
 extern struct clk_functions omap2_clk_functions;
 
-struct regmap;
-
-int __init omap2_clk_provider_init(struct device_node *np, int index,
-				   struct regmap *syscon, void __iomem *mem);
-void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem);
 int __init omap2_clk_setup_ll_ops(void);
 
 void __init ti_clk_init_features(void);
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 58b83e0af90f..07584e00677e 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -21,6 +21,8 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/list.h>
+#include <linux/regmap.h>
+#include <linux/bootmem.h>
 
 #include "clock.h"
 
@@ -32,6 +34,38 @@ static struct device_node *clocks_node_ptr[CLK_MAX_MEMMAPS];
 
 struct ti_clk_features ti_clk_features;
 
+struct clk_iomap {
+	struct regmap *regmap;
+	void __iomem *mem;
+};
+
+static struct clk_iomap *clk_memmaps[CLK_MAX_MEMMAPS];
+
+static void clk_memmap_writel(u32 val, void __iomem *reg)
+{
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+	struct clk_iomap *io = clk_memmaps[r->index];
+
+	if (io->regmap)
+		regmap_write(io->regmap, r->offset, val);
+	else
+		writel_relaxed(val, io->mem + r->offset);
+}
+
+static u32 clk_memmap_readl(void __iomem *reg)
+{
+	u32 val;
+	struct clk_omap_reg *r = (struct clk_omap_reg *)&reg;
+	struct clk_iomap *io = clk_memmaps[r->index];
+
+	if (io->regmap)
+		regmap_read(io->regmap, r->offset, &val);
+	else
+		val = readl_relaxed(io->mem + r->offset);
+
+	return val;
+}
+
 /**
  * ti_clk_setup_ll_ops - setup low level clock operations
  * @ops: low level clock ops descriptor
@@ -49,6 +83,8 @@ int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops)
 	}
 
 	ti_clk_ll_ops = ops;
+	ops->clk_readl = clk_memmap_readl;
+	ops->clk_writel = clk_memmap_writel;
 
 	return 0;
 }
@@ -161,28 +197,61 @@ void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index)
 }
 
 /**
- * ti_dt_clk_init_provider - init master clock provider
+ * omap2_clk_provider_init - init master clock provider
  * @parent: master node
  * @index: internal index for clk_reg_ops
+ * @syscon: syscon regmap pointer for accessing clock registers
+ * @mem: iomem pointer for the clock provider memory area, only used if
+ *       syscon is not provided
  *
  * Initializes a master clock IP block. This basically sets up the
  * mapping from clocks node to the memory map index. All the clocks
  * are then initialized through the common of_clk_init call, and the
  * clocks will access their memory maps based on the node layout.
+ * Returns 0 in success.
  */
-void ti_dt_clk_init_provider(struct device_node *parent, int index)
+int __init omap2_clk_provider_init(struct device_node *parent, int index,
+				   struct regmap *syscon, void __iomem *mem)
 {
 	struct device_node *clocks;
+	struct clk_iomap *io;
 
 	/* get clocks for this parent */
 	clocks = of_get_child_by_name(parent, "clocks");
 	if (!clocks) {
 		pr_err("%s missing 'clocks' child node.\n", parent->name);
-		return;
+		return -EINVAL;
 	}
 
 	/* add clocks node info */
 	clocks_node_ptr[index] = clocks;
+
+	io = kzalloc(sizeof(*io), GFP_KERNEL);
+
+	io->regmap = syscon;
+	io->mem = mem;
+
+	clk_memmaps[index] = io;
+
+	return 0;
+}
+
+/**
+ * omap2_clk_legacy_provider_init - initialize a legacy clock provider
+ * @index: index for the clock provider
+ * @mem: iomem pointer for the clock provider memory area
+ *
+ * Initializes a legacy clock provider memory mapping.
+ */
+void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem)
+{
+	struct clk_iomap *io;
+
+	io = memblock_virt_alloc(sizeof(*io), 0);
+
+	io->mem = mem;
+
+	clk_memmaps[index] = io;
 }
 
 /**
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 5b644313e38a..9299222d680d 100644
--- a/include/linux/clk/ti.h
+++ b/include/linux/clk/ti.h
@@ -250,11 +250,16 @@ void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
 void omap2xxx_clkt_vps_init(void);
 unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk);
 
-void ti_dt_clk_init_provider(struct device_node *np, int index);
 void ti_dt_clk_init_retry_clks(void);
 void ti_dt_clockdomains_setup(void);
 int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops);
 
+struct regmap;
+
+int omap2_clk_provider_init(struct device_node *parent, int index,
+			    struct regmap *syscon, void __iomem *mem);
+void omap2_clk_legacy_provider_init(int index, void __iomem *mem);
+
 int omap3430_dt_clk_init(void);
 int omap3630_dt_clk_init(void);
 int am35xx_dt_clk_init(void);
-- 
cgit v1.2.3