linux-kernel - [PATCH v2 3/8] clk: renesas: rzg2l-cpg: Add macro to loop through module clocks

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Message-ID: <20250514090415.4098534-4-claudiu.beznea.uj@bp.renesas.com>
Date: Wed, 14 May 2025 12:04:10 +0300
From: Claudiu <claudiu.beznea@...on.dev>
To: geert+renesas@...der.be,
	mturquette@...libre.com,
	sboyd@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	magnus.damm@...il.com
Cc: claudiu.beznea@...on.dev,
	linux-renesas-soc@...r.kernel.org,
	linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: [PATCH v2 3/8] clk: renesas: rzg2l-cpg: Add macro to loop through module clocks

From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Add a macro to iterate over the module clocks array. This will be useful
in the upcoming commits that move MSTOP support into the clock
enable/disable APIs.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
---

Changes in v2:
- none; this patch is new

 drivers/clk/renesas/rzg2l-cpg.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c
index 767da288b0f7..c619b2da92b0 100644
--- a/drivers/clk/renesas/rzg2l-cpg.c
+++ b/drivers/clk/renesas/rzg2l-cpg.c
@@ -1202,6 +1202,13 @@ struct mstp_clock {
 
 #define to_mod_clock(_hw) container_of(_hw, struct mstp_clock, hw)
 
+#define for_each_mstp_clk(mstp_clk, hw, priv) \
+	for (unsigned int i = 0; (priv) && i < (priv)->num_mod_clks; i++) \
+		if ((priv)->clks[(priv)->num_core_clks + i] == ERR_PTR(-ENOENT)) \
+			continue; \
+		else if (((hw) = __clk_get_hw((priv)->clks[(priv)->num_core_clks + i])) && \
+			 ((mstp_clk) = to_mod_clock(hw)))
+
 static int rzg2l_mod_clock_endisable(struct clk_hw *hw, bool enable)
 {
 	struct mstp_clock *clock = to_mod_clock(hw);
@@ -1314,17 +1321,10 @@ static struct mstp_clock
 *rzg2l_mod_clock_get_sibling(struct mstp_clock *clock,
 			     struct rzg2l_cpg_priv *priv)
 {
+	struct mstp_clock *clk;
 	struct clk_hw *hw;
-	unsigned int i;
-
-	for (i = 0; i < priv->num_mod_clks; i++) {
-		struct mstp_clock *clk;
-
-		if (priv->clks[priv->num_core_clks + i] == ERR_PTR(-ENOENT))
-			continue;
 
-		hw = __clk_get_hw(priv->clks[priv->num_core_clks + i]);
-		clk = to_mod_clock(hw);
+	for_each_mstp_clk(clk, hw, priv) {
 		if (clock->off == clk->off && clock->bit == clk->bit)
 			return clk;
 	}
-- 
2.43.0