linux-kernel - [PATCH 09/42] clk: at91: clk-i2s-mux: add support for parent

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Message-Id: <20230727053156.13587-10-claudiu.beznea@tuxon.dev>
Date:   Thu, 27 Jul 2023 08:31:23 +0300
From:   Claudiu Beznea <claudiu.beznea@...on.dev>
To:     mturquette@...libre.com, sboyd@...nel.org,
        nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
        mripard@...nel.org
Cc:     linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, varshini.rajendran@...rochip.com,
        Claudiu Beznea <claudiu.beznea@...on.dev>
Subject: [PATCH 09/42] clk: at91: clk-i2s-mux: add support for parent_hw

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>
---
 drivers/clk/at91/clk-i2s-mux.c | 7 +++++--
 drivers/clk/at91/dt-compat.c   | 2 +-
 drivers/clk/at91/pmc.h         | 2 +-
 drivers/clk/at91/sama5d2.c     | 4 ++--
 4 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/at91/clk-i2s-mux.c b/drivers/clk/at91/clk-i2s-mux.c
index fe6ce172b8b0..f1981b8ee18d 100644
--- a/drivers/clk/at91/clk-i2s-mux.c
+++ b/drivers/clk/at91/clk-i2s-mux.c
@@ -50,7 +50,7 @@ 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,
+			  const char * const *parent_names, struct clk_hw **parent_hws,
 			  unsigned int num_parents, u8 bus_id)
 {
 	struct clk_init_data init = {};
@@ -63,7 +63,10 @@ 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_hws)
+		init.parent_hws = (const struct clk_hw **)parent_hws;
+	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 8540234e9d89..f0498d9c269c 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 1604b44f2945..e1fd87aebd27 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -154,7 +154,7 @@ 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,
+			  const char * const *parent_names, struct clk_hw **parent_hws,
 			  unsigned int num_parents, u8 bus_id);
 
 struct clk_hw * __init
diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index 8c7ff0108b41..f5d6c7a96cf2 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -372,7 +372,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 		parent_names[0] = "i2s0_clk";
 		parent_names[1] = "i2s0_gclk";
 		hw = at91_clk_i2s_mux_register(regmap_sfr, "i2s0_muxclk",
-					       parent_names, 2, 0);
+					       parent_names, NULL, 2, 0);
 		if (IS_ERR(hw))
 			goto err_free;
 
@@ -381,7 +381,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 		parent_names[0] = "i2s1_clk";
 		parent_names[1] = "i2s1_gclk";
 		hw = at91_clk_i2s_mux_register(regmap_sfr, "i2s1_muxclk",
-					       parent_names, 2, 1);
+					       parent_names, NULL, 2, 1);
 		if (IS_ERR(hw))
 			goto err_free;
 
-- 
2.39.2