Re: [U-Boot] [PATCH v2 5/6] clk: add API to enable clock

[Simon Glass]

On 12 January 2016 at 21:16, Masahiro Yamada
 wrote:
> The most basic thing for clock is to enable it, but it is missing
> in this uclass.
>
> Signed-off-by: Masahiro Yamada 
> Acked-by: Simon Glass 
> ---
>
> Changes in v2:
>   - Add clk_enable() function
>
>  drivers/clk/clk-uclass.c | 10 ++
>  include/clk.h| 18 ++
>  2 files changed, 28 insertions(+)

Applied to u-boot-dm, thanks!
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[U-Boot] [PATCH v2 5/6] clk: add API to enable clock

[Masahiro Yamada]

The most basic thing for clock is to enable it, but it is missing
in this uclass.

Signed-off-by: Masahiro Yamada 
Acked-by: Simon Glass 
---

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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