linux-kernel - [PATCH v2 16/32] clk: at91: clk-i2s-mux: add support for parent

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Message-ID: <d94b3c0c9958469ca1c5c34961ad27d0d0b7160b.1750182562.git.Ryan.Wanner@microchip.com>
Date: Tue, 24 Jun 2025 08:08:13 -0700
From: <Ryan.Wanner@...rochip.com>
To: <mturquette@...libre.com>, <sboyd@...nel.org>,
	<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
	<claudiu.beznea@...on.dev>
CC: <robh@...nel.org>, <linux-clk@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	<varshini.rajendran@...rochip.com>
Subject: [PATCH v2 16/32] clk: at91: clk-i2s-mux: add support for parent_hw

From: Claudiu Beznea <claudiu.beznea@...on.dev>

Add support for parent_hw in i2s mux clock driver.
With this parent-child relation is described with pointers rather
than strings making registration a bit faster.

All the SoC based drivers that rely on clk-i2s-mux were adapted
to the new API change. The switch itself for SoCs will be done
in subsequent patches.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...on.dev>
[ryan.wanner@...rochip.com: Remove SoC specific changes as they are
going to be coalesced into one SoC specific commit.]
Signed-off-by: Ryan Wanner <Ryan.Wanner@...rochip.com>
---
 drivers/clk/at91/clk-i2s-mux.c | 6 +++++-
 drivers/clk/at91/dt-compat.c   | 2 +-
 drivers/clk/at91/pmc.h         | 1 +
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/at91/clk-i2s-mux.c b/drivers/clk/at91/clk-i2s-mux.c
index fe6ce172b8b0..04d9fcf940fb 100644
--- a/drivers/clk/at91/clk-i2s-mux.c
+++ b/drivers/clk/at91/clk-i2s-mux.c
@@ -51,6 +51,7 @@ static const struct clk_ops clk_i2s_mux_ops = {
 struct clk_hw * __init
 at91_clk_i2s_mux_register(struct regmap *regmap, const char *name,
 			  const char * const *parent_names,
+			  struct clk_parent_data *parent_data,
 			  unsigned int num_parents, u8 bus_id)
 {
 	struct clk_init_data init = {};
@@ -63,7 +64,10 @@ at91_clk_i2s_mux_register(struct regmap *regmap, const char *name,
 
 	init.name = name;
 	init.ops = &clk_i2s_mux_ops;
-	init.parent_names = parent_names;
+	if (parent_data)
+		init.parent_data = (const struct clk_parent_data *)parent_data;
+	else
+		init.parent_names = parent_names;
 	init.num_parents = num_parents;
 
 	i2s_ck->hw.init = &init;
diff --git a/drivers/clk/at91/dt-compat.c b/drivers/clk/at91/dt-compat.c
index ccdeba3a1130..2b1aa834f111 100644
--- a/drivers/clk/at91/dt-compat.c
+++ b/drivers/clk/at91/dt-compat.c
@@ -239,7 +239,7 @@ static void __init of_sama5d2_clk_i2s_mux_setup(struct device_node *np)
 			continue;
 
 		hw = at91_clk_i2s_mux_register(regmap_sfr, i2s_mux_np->name,
-					       parent_names, 2, bus_id);
+					       parent_names, NULL, 2, bus_id);
 		if (IS_ERR(hw))
 			continue;
 
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index fe42700df6db..a380054d580d 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -182,6 +182,7 @@ at91_clk_register_h32mx(struct regmap *regmap, const char *name,
 struct clk_hw * __init
 at91_clk_i2s_mux_register(struct regmap *regmap, const char *name,
 			  const char * const *parent_names,
+			  struct clk_parent_data *parent_data,
 			  unsigned int num_parents, u8 bus_id);
 
 struct clk_hw * __init
-- 
2.43.0