clk: Store clk_core for clk_rate_request

The struct clk_rate_request is meant to store the context around a rate
request such as the parent, boundaries, and so on.

However, it doesn't store the clock the rate request is submitted to,
which makes debugging difficult.

Let's add a pointer to the relevant clk_core instance in order to
improve the debugging of rate requests in a subsequent patch.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20221018-clk-rate-request-tracing-v2-1-5170b363c413@cerno.tech
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 267cd06b54a0..842e72a5348f 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -44,6 +44,7 @@ struct dentry;
  *
  * Should be initialized by calling clk_hw_init_rate_request().
  *
+ * @core: 		Pointer to the struct clk_core affected by this request
  * @rate:		Requested clock rate. This field will be adjusted by
  *			clock drivers according to hardware capabilities.
  * @min_rate:		Minimum rate imposed by clk users.
@@ -55,6 +56,7 @@ struct dentry;
  *
  */
 struct clk_rate_request {
+	struct clk_core *core;
 	unsigned long rate;
 	unsigned long min_rate;
 	unsigned long max_rate;