Clock providers are not allowed to mess with struct clk internals directly
but using helpers provided by clk-provider.h. This patch adds a helper to
allow to set flags of a clock after registration. This is useful, if clock
flags change during runtime, e.g. ability to set parent clock after mux
switch.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselba...@gmail.com>
---
Cc: Mike Turquette <mturque...@linaro.org>
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
drivers/clk/clk.c | 8 ++++++++
include/linux/clk-provider.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index ed87b24..780a0c0 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -451,6 +451,14 @@ unsigned long __clk_get_flags(struct clk *clk)
return !clk ? 0 : clk->flags;
}
+void __clk_set_flags(struct clk *clk, unsigned long flags)
+{
+ if (!clk)
+ return;
+
+ clk->flags = flags;
+}
+
bool __clk_is_enabled(struct clk *clk)
{
int ret;
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 7f197d7..e862d9c 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -351,6 +351,7 @@ unsigned int __clk_get_enable_count(struct clk *clk);
unsigned int __clk_get_prepare_count(struct clk *clk);
unsigned long __clk_get_rate(struct clk *clk);
unsigned long __clk_get_flags(struct clk *clk);
+void __clk_set_flags(struct clk *clk, unsigned long flags);
bool __clk_is_enabled(struct clk *clk);
struct clk *__clk_lookup(const char *name);
--
1.7.10.4
--
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