The most basic thing for clock is to enable it, but it is missing
in this uclass.
Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
Acked-by: Simon Glass <s...@chromium.org>
---
Changes in v2:
- Add clk_enable() function
drivers/clk/clk-uclass.c | 10 ++++++++++
include/clk.h | 18 ++++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index a5bef59..ac3909d 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -32,6 +32,16 @@ long clk_set_rate(struct udevice *dev, ulong rate)
return ops->set_rate(dev, rate);
}
+int clk_enable(struct udevice *dev, int periph)
+{
+ struct clk_ops *ops = clk_get_ops(dev);
+
+ if (!ops->enable)
+ return -ENOSYS;
+
+ return ops->enable(dev, periph);
+}
+
long clk_get_periph_rate(struct udevice *dev, int periph)
{
struct clk_ops *ops = clk_get_ops(dev);
diff --git a/include/clk.h b/include/clk.h
index 61bb468..de15999 100644
--- a/include/clk.h
+++ b/include/clk.h
@@ -33,6 +33,15 @@ struct clk_ops {
long (*set_rate)(struct udevice *dev, ulong rate);
/**
+ * enable() - Enable the clock for a peripheral
+ *
+ * @dev: clock provider
+ * @periph: Peripheral ID to enable
+ * @return zero on success, or -ve error code
+ */
+ int (*enable)(struct udevice *dev, int periph);
+
+ /**
* get_periph_rate() - Get clock rate for a peripheral
*
* @dev: Device to check (UCLASS_CLK)
@@ -71,6 +80,15 @@ long clk_get_rate(struct udevice *dev);
long clk_set_rate(struct udevice *dev, ulong rate);
/**
+ * clk_enable() - Enable the clock for a peripheral
+ *
+ * @dev: clock provider
+ * @periph: Peripheral ID to enable
+ * @return zero on success, or -ve error code
+ */
+int clk_enable(struct udevice *dev, int periph);
+
+/**
* clk_get_periph_rate() - Get current clock rate for a peripheral
*
* @dev: Device to check (UCLASS_CLK)
--
1.9.1
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