[PATCH] clk: rockchip: Use flexible array for clock table

[Rosen Penev]

Store the clock lookup table in the Rockchip clock provider
allocation instead of allocating it separately.

This ties the table lifetime directly to the provider and removes a
separate allocation failure path while preserving the clk_onecell_data
lookup interface.

Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
---
 drivers/clk/rockchip/clk.c | 17 ++++-------------
 drivers/clk/rockchip/clk.h |  2 ++
 2 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c
index ee8c79b938d3..dbb4b6f33abb 100644
--- a/drivers/clk/rockchip/clk.c
+++ b/drivers/clk/rockchip/clk.c
@@ -359,26 +359,21 @@ static struct rockchip_clk_provider *rockchip_clk_init_base(
 		unsigned long nr_clks, bool has_late_clocks)
 {
 	struct rockchip_clk_provider *ctx;
-	struct clk **clk_table;
 	struct clk *default_clk_val;
 	int i;
 
 	default_clk_val = ERR_PTR(has_late_clocks ? -EPROBE_DEFER : -ENOENT);
 
-	ctx = kzalloc_obj(struct rockchip_clk_provider);
+	ctx = kzalloc_flex(*ctx, clk_table, nr_clks);
 	if (!ctx)
 		return ERR_PTR(-ENOMEM);
 
-	clk_table = kzalloc_objs(struct clk *, nr_clks);
-	if (!clk_table)
-		goto err_free;
-
 	for (i = 0; i < nr_clks; ++i)
-		clk_table[i] = default_clk_val;
+		ctx->clk_table[i] = default_clk_val;
 
-	ctx->reg_base = base;
-	ctx->clk_data.clks = clk_table;
 	ctx->clk_data.clk_num = nr_clks;
+	ctx->clk_data.clks = ctx->clk_table;
+	ctx->reg_base = base;
 	ctx->cru_node = np;
 	spin_lock_init(&ctx->lock);
 
@@ -388,10 +383,6 @@ static struct rockchip_clk_provider *rockchip_clk_init_base(
 						   "rockchip,grf");
 
 	return ctx;
-
-err_free:
-	kfree(ctx);
-	return ERR_PTR(-ENOMEM);
 }
 
 struct rockchip_clk_provider *rockchip_clk_init(struct device_node *np,
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
index 9e3503e2ffc2..d4033bf750f5 100644
--- a/drivers/clk/rockchip/clk.h
+++ b/drivers/clk/rockchip/clk.h
@@ -604,6 +604,7 @@ struct rockchip_aux_grf {
  * @grf: regmap of the general-register-files syscon
  * @aux_grf_table: hashtable of auxiliary GRF regmaps, indexed by grf_type
  * @lock: maintains exclusion between callbacks for a given clock-provider.
+ * @clk_table: clock lookup table.
  */
 struct rockchip_clk_provider {
 	void __iomem *reg_base;
@@ -612,6 +613,7 @@ struct rockchip_clk_provider {
 	struct regmap *grf;
 	DECLARE_HASHTABLE(aux_grf_table, GRF_HASH_ORDER);
 	spinlock_t lock;
+	struct clk *clk_table[];
 };
 
 struct rockchip_pll_rate_table {
-- 
2.54.0