linux-kernel - [PATCH 11/42] clk: at91: clk-smd: add support for parent

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Message-Id: <20230727053156.13587-12-claudiu.beznea@tuxon.dev>
Date:   Thu, 27 Jul 2023 08:31:25 +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 11/42] clk: at91: clk-smd: add support for parent_hw

Add support for parent_hw in smd clock drivers.
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-smd 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/at91sam9x5.c |  2 +-
 drivers/clk/at91/clk-smd.c    | 10 +++++++---
 drivers/clk/at91/dt-compat.c  |  2 +-
 drivers/clk/at91/pmc.h        |  3 ++-
 drivers/clk/at91/sama5d3.c    |  2 +-
 drivers/clk/at91/sama5d4.c    |  2 +-
 6 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/at91/at91sam9x5.c b/drivers/clk/at91/at91sam9x5.c
index 37280852f086..13331e015dd7 100644
--- a/drivers/clk/at91/at91sam9x5.c
+++ b/drivers/clk/at91/at91sam9x5.c
@@ -226,7 +226,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
 	if (IS_ERR(hw))
 		goto err_free;
 
-	hw = at91sam9x5_clk_register_smd(regmap, "smdclk", parent_names, 2);
+	hw = at91sam9x5_clk_register_smd(regmap, "smdclk", parent_names, NULL, 2);
 	if (IS_ERR(hw))
 		goto err_free;
 
diff --git a/drivers/clk/at91/clk-smd.c b/drivers/clk/at91/clk-smd.c
index 09c649c8598e..2c8432cc2fe6 100644
--- a/drivers/clk/at91/clk-smd.c
+++ b/drivers/clk/at91/clk-smd.c
@@ -111,11 +111,12 @@ static const struct clk_ops at91sam9x5_smd_ops = {
 
 struct clk_hw * __init
 at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name,
-			    const char **parent_names, u8 num_parents)
+			    const char **parent_names, struct clk_hw **parent_hws,
+			    u8 num_parents)
 {
 	struct at91sam9x5_clk_smd *smd;
 	struct clk_hw *hw;
-	struct clk_init_data init;
+	struct clk_init_data init = {};
 	int ret;
 
 	smd = kzalloc(sizeof(*smd), GFP_KERNEL);
@@ -124,7 +125,10 @@ at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name,
 
 	init.name = name;
 	init.ops = &at91sam9x5_smd_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;
 	init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE;
 
diff --git a/drivers/clk/at91/dt-compat.c b/drivers/clk/at91/dt-compat.c
index f0498d9c269c..f464e125c9fd 100644
--- a/drivers/clk/at91/dt-compat.c
+++ b/drivers/clk/at91/dt-compat.c
@@ -858,7 +858,7 @@ static void __init of_at91sam9x5_clk_smd_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	hw = at91sam9x5_clk_register_smd(regmap, name, parent_names,
+	hw = at91sam9x5_clk_register_smd(regmap, name, parent_names, NULL,
 					 num_parents);
 	if (IS_ERR(hw))
 		return;
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index e1fd87aebd27..541d2ba2fea5 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -248,7 +248,8 @@ at91_clk_register_sam9260_slow(struct regmap *regmap,
 
 struct clk_hw * __init
 at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name,
-			    const char **parent_names, u8 num_parents);
+			    const char **parent_names, struct clk_hw **parent_hws,
+			    u8 num_parents);
 
 struct clk_hw * __init
 at91_clk_register_system(struct regmap *regmap, const char *name,
diff --git a/drivers/clk/at91/sama5d3.c b/drivers/clk/at91/sama5d3.c
index 7f2ac8f648dd..8326bb6a291c 100644
--- a/drivers/clk/at91/sama5d3.c
+++ b/drivers/clk/at91/sama5d3.c
@@ -205,7 +205,7 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
-	hw = at91sam9x5_clk_register_smd(regmap, "smdclk", parent_names, 2);
+	hw = at91sam9x5_clk_register_smd(regmap, "smdclk", parent_names, NULL, 2);
 	if (IS_ERR(hw))
 		goto err_free;
 
diff --git a/drivers/clk/at91/sama5d4.c b/drivers/clk/at91/sama5d4.c
index 04c848cd7001..1ff9286148da 100644
--- a/drivers/clk/at91/sama5d4.c
+++ b/drivers/clk/at91/sama5d4.c
@@ -228,7 +228,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
 
 	parent_names[0] = "plladivck";
 	parent_names[1] = "utmick";
-	hw = at91sam9x5_clk_register_smd(regmap, "smdclk", parent_names, 2);
+	hw = at91sam9x5_clk_register_smd(regmap, "smdclk", parent_names, NULL, 2);
 	if (IS_ERR(hw))
 		goto err_free;
 
-- 
2.39.2