clk: ti: drop locking code from mux/divider drivers

TI's mux and divider clock drivers do not require locking and they do
not initialize internal spinlocks. This code was occasionally
copy-posted from generic mux/divider drivers. So remove it.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>

diff --git a/drivers/clk/ti/divider.c b/drivers/clk/ti/divider.c
index 5b1726829e6df038de9e8502471cbb6b70414fd5..df2558350fc1d6be681d818c361339acd2afaba3 100644 (file)
--- a/drivers/clk/ti/divider.c
+++ b/drivers/clk/ti/divider.c
@@ -214,7 +214,6 @@ static int ti_clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
 {
        struct clk_divider *divider;
        unsigned int div, value;
-       unsigned long flags = 0;
        u32 val;
 
        if (!hw || !rate)
@@ -228,9 +227,6 @@ static int ti_clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
        if (value > div_mask(divider))
                value = div_mask(divider);
 
-       if (divider->lock)
-               spin_lock_irqsave(divider->lock, flags);
-
        if (divider->flags & CLK_DIVIDER_HIWORD_MASK) {
                val = div_mask(divider) << (divider->shift + 16);
        } else {
@@ -240,9 +236,6 @@ static int ti_clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
        val |= value << divider->shift;
        ti_clk_ll_ops->clk_writel(val, divider->reg);
 
-       if (divider->lock)
-               spin_unlock_irqrestore(divider->lock, flags);
-
        return 0;
 }
 
@@ -256,8 +249,7 @@ static struct clk *_register_divider(struct device *dev, const char *name,
                                     const char *parent_name,
                                     unsigned long flags, void __iomem *reg,
                                     u8 shift, u8 width, u8 clk_divider_flags,
-                                    const struct clk_div_table *table,
-                                    spinlock_t *lock)
+                                    const struct clk_div_table *table)
 {
        struct clk_divider *div;
        struct clk *clk;
@@ -288,7 +280,6 @@ static struct clk *_register_divider(struct device *dev, const char *name,
        div->shift = shift;
        div->width = width;
        div->flags = clk_divider_flags;
-       div->lock = lock;
        div->hw.init = &init;
        div->table = table;
 
@@ -421,7 +412,7 @@ struct clk *ti_clk_register_divider(struct ti_clk *setup)
 
        clk = _register_divider(NULL, setup->name, div->parent,
                                flags, (void __iomem *)reg, div->bit_shift,
-                               width, div_flags, table, NULL);
+                               width, div_flags, table);
 
        if (IS_ERR(clk))
                kfree(table);
@@ -584,8 +575,7 @@ static void __init of_ti_divider_clk_setup(struct device_node *node)
                goto cleanup;
 
        clk = _register_divider(NULL, node->name, parent_name, flags, reg,
-                               shift, width, clk_divider_flags, table,
-                               NULL);
+                               shift, width, clk_divider_flags, table);
 
        if (!IS_ERR(clk)) {
                of_clk_add_provider(node, of_clk_src_simple_get, clk);

diff --git a/drivers/clk/ti/mux.c b/drivers/clk/ti/mux.c
index 69f08a1d047d8672a758e441fcd718bbf64bb946..dab9ba88b9d6d2b1b97e2472694bbb588997d8de 100644 (file)
--- a/drivers/clk/ti/mux.c
+++ b/drivers/clk/ti/mux.c
@@ -69,7 +69,6 @@ static int ti_clk_mux_set_parent(struct clk_hw *hw, u8 index)
 {
        struct clk_mux *mux = to_clk_mux(hw);
        u32 val;
-       unsigned long flags = 0;
 
        if (mux->table) {
                index = mux->table[index];
@@ -81,9 +80,6 @@ static int ti_clk_mux_set_parent(struct clk_hw *hw, u8 index)
                        index++;
        }
 
-       if (mux->lock)
-               spin_lock_irqsave(mux->lock, flags);
-
        if (mux->flags & CLK_MUX_HIWORD_MASK) {
                val = mux->mask << (mux->shift + 16);
        } else {
@@ -93,9 +89,6 @@ static int ti_clk_mux_set_parent(struct clk_hw *hw, u8 index)
        val |= index << mux->shift;
        ti_clk_ll_ops->clk_writel(val, mux->reg);
 
-       if (mux->lock)
-               spin_unlock_irqrestore(mux->lock, flags);
-
        return 0;
 }
 
@@ -109,7 +102,7 @@ static struct clk *_register_mux(struct device *dev, const char *name,
                                 const char **parent_names, u8 num_parents,
                                 unsigned long flags, void __iomem *reg,
                                 u8 shift, u32 mask, u8 clk_mux_flags,
-                                u32 *table, spinlock_t *lock)
+                                u32 *table)
 {
        struct clk_mux *mux;
        struct clk *clk;
@@ -133,7 +126,6 @@ static struct clk *_register_mux(struct device *dev, const char *name,
        mux->shift = shift;
        mux->mask = mask;
        mux->flags = clk_mux_flags;
-       mux->lock = lock;
        mux->table = table;
        mux->hw.init = &init;
 
@@ -175,7 +167,7 @@ struct clk *ti_clk_register_mux(struct ti_clk *setup)
 
        return _register_mux(NULL, setup->name, mux->parents, mux->num_parents,
                             flags, (void __iomem *)reg, mux->bit_shift, mask,
-                            mux_flags, NULL, NULL);
+                            mux_flags, NULL);
 }
 
 /**
@@ -227,8 +219,7 @@ static void of_mux_clk_setup(struct device_node *node)
        mask = (1 << fls(mask)) - 1;
 
        clk = _register_mux(NULL, node->name, parent_names, num_parents,
-                           flags, reg, shift, mask, clk_mux_flags, NULL,
-                           NULL);
+                           flags, reg, shift, mask, clk_mux_flags, NULL);
 
        if (!IS_ERR(clk))
                of_clk_add_provider(node, of_clk_src_simple_get, clk);