Allows to reuse the clk gate code within other clocks.
Signed-off-by: Lucas Stach <[email protected]>
---
drivers/clk/clk-gate.c | 31 +++++++++++++++++++++++++------
include/linux/clk.h | 4 ++++
2 files changed, 29 insertions(+), 6 deletions(-)
diff --git a/drivers/clk/clk-gate.c b/drivers/clk/clk-gate.c
index a455094..e4e9967 100644
--- a/drivers/clk/clk-gate.c
+++ b/drivers/clk/clk-gate.c
@@ -27,6 +27,8 @@ struct clk_gate {
const char *parent;
};
+#define to_clk_gate(_clk) container_of(_clk, struct clk_gate, clk)
+
static int clk_gate_enable(struct clk *clk)
{
struct clk_gate *g = container_of(clk, struct clk_gate, clk);
@@ -68,11 +70,10 @@ struct clk_ops clk_gate_ops = {
.is_enabled = clk_gate_is_enabled,
};
-struct clk *clk_gate(const char *name, const char *parent, void __iomem *reg,
- u8 shift)
+struct clk *clk_gate_alloc(const char *name, const char *parent,
+ void __iomem *reg, u8 shift)
{
struct clk_gate *g = xzalloc(sizeof(*g));
- int ret;
g->parent = parent;
g->reg = reg;
@@ -82,11 +83,29 @@ struct clk *clk_gate(const char *name, const char *parent,
void __iomem *reg,
g->clk.parent_names = &g->parent;
g->clk.num_parents = 1;
- ret = clk_register(&g->clk);
+ return &g->clk;
+}
+
+void clk_gate_free(struct clk *clk_gate)
+{
+ struct clk_gate *g = to_clk_gate(clk_gate);
+
+ free(g);
+}
+
+struct clk *clk_gate(const char *name, const char *parent, void __iomem *reg,
+ u8 shift)
+{
+ struct clk *g;
+ int ret;
+
+ g = clk_gate_alloc(name , parent, reg, shift);
+
+ ret = clk_register(g);
if (ret) {
- free(g);
+ free(to_clk_gate(g));
return ERR_PTR(ret);
}
- return &g->clk;
+ return g;
}
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 0f7158a..cf41bd7 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -199,6 +199,10 @@ struct clk *clk_fixed_factor(const char *name,
const char *parent, unsigned int mult, unsigned int div);
struct clk *clk_mux(const char *name, void __iomem *reg,
u8 shift, u8 width, const char **parents, u8 num_parents);
+
+struct clk *clk_gate_alloc(const char *name, const char *parent,
+ void __iomem *reg, u8 shift);
+void clk_gate_free(struct clk *clk_gate);
struct clk *clk_gate(const char *name, const char *parent, void __iomem *reg,
u8 shift);
--
1.8.2.1
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