From: Patrice Chotard <patrice.chot...@st.com>
Add clk_disable_all() method which Request/Disable/Free an
array of clocks that has been previously requested by
clk_request/get_by_*()
Signed-off-by: Patrice Chotard <patrice.chot...@st.com>
---
v8: _ replace clk->dev by clk[i].dev in clk_request() param
v7: _ none
v6: _ none
v5: _ none
v4: _ none
v3: _ add commit message
v2: _ create this independant path for printf() replacement
drivers/clk/clk-uclass.c | 22 ++++++++++++++++++++++
include/clk.h | 10 ++++++++++
2 files changed, 32 insertions(+)
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index 83b6328..f6ad106 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -187,6 +187,28 @@ int clk_disable(struct clk *clk)
return ops->disable(clk);
}
+int clk_disable_all(struct clk *clk, int count)
+{
+ int i, ret;
+
+ debug("%s(clk=%p count=%d)\n", __func__, clk, count);
+
+ for (i = 0; i < count; i++) {
+ ret = clk_request(clk[i].dev, &clk[i]);
+ if (ret && ret != -ENOSYS)
+ return ret;
+
+ ret = clk_disable(&clk[i]);
+ if (ret && ret != -ENOSYS)
+ return ret;
+
+ ret = clk_free(&clk[i]);
+ if (ret && ret != -ENOSYS)
+ return ret;
+ }
+ return 0;
+}
+
UCLASS_DRIVER(clk) = {
.id = UCLASS_CLK,
.name = "clk",
diff --git a/include/clk.h b/include/clk.h
index 5a5c2ff..e04c274 100644
--- a/include/clk.h
+++ b/include/clk.h
@@ -174,6 +174,16 @@ int clk_enable(struct clk *clk);
*/
int clk_disable(struct clk *clk);
+/**
+ * clk_disable_all() - Request/Disable (turn off)/Free clocks.
+ *
+ * @clk: A clock struct array that was previously successfully
+ * requested by clk_request/get_by_*().
+ * @count Number of clock contained in the array
+ * @return zero on success, or -ve error code.
+ */
+int clk_disable_all(struct clk *clk, int count);
+
int soc_clk_dump(void);
#endif
--
1.9.1
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