clk: Add is_enabled callback

This allows us to better detect whether a clk is enabled or not.

- If we can ask a clk, ask it. If it's enabled, go on and ask parents
- If we can't ask it, but it can be enabled, depend on the enable_count.
  if it's positive, go on and ask parents
- If we can't ask it and it cannot be enabled, assume it is enabled
  and ask parents.

This makes the CLK_ALWAYS_ENABLED unnecessary, since the fixed clk now
always returns 1 in its is_enabled callback.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/clk/clk-fixed.c b/drivers/clk/clk-fixed.c
index 5e81e72946..e5d36b4ffa 100644
--- a/drivers/clk/clk-fixed.c
+++ b/drivers/clk/clk-fixed.c
@@ -34,6 +34,7 @@ static unsigned long clk_fixed_recalc_rate(struct clk *clk,
 
 struct clk_ops clk_fixed_ops = {
 	.recalc_rate = clk_fixed_recalc_rate,
+	.is_enabled = clk_is_enabled_always,
 };
 
 struct clk *clk_fixed(const char *name, int rate)
@@ -44,7 +45,6 @@ struct clk *clk_fixed(const char *name, int rate)
 	fix->rate = rate;
 	fix->clk.ops = &clk_fixed_ops;
 	fix->clk.name = name;
-	fix->clk.flags = CLK_ALWAYS_ENABLED;
 
 	ret = clk_register(&fix->clk);
 	if (ret) {