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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Stephen Boyd <[email protected]>
Stilmant · Dec 7, 2022 · ef13f8b · ef13f8b
1 parent 9abf231
commit ef13f8b
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diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
@@ -1464,6 +1464,7 @@ static void clk_core_init_rate_req(struct clk_core * const core,
 
 	memset(req, 0, sizeof(*req));
 
+	req->core = core;
 	req->rate = rate;
 	clk_core_get_boundaries(core, &req->min_rate, &req->max_rate);
 

diff --git 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;