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Message-ID: <20230615093227.576102-4-claudiu.beznea@microchip.com>
Date: Thu, 15 Jun 2023 12:32:19 +0300
From: Claudiu Beznea <claudiu.beznea@...rochip.com>
To: <mturquette@...libre.com>, <sboyd@...nel.org>,
<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
<m.grzeschik@...gutronix.de>, <maxime@...no.tech>, <windhl@....com>
CC: <linux-clk@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH 03/11] clk: at91: clk-master: add support for parent_hw
Add support for parent_hw in master 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-master 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@...rochip.com>
---
drivers/clk/at91/at91rm9200.c | 4 ++--
drivers/clk/at91/at91sam9260.c | 4 ++--
drivers/clk/at91/at91sam9g45.c | 4 ++--
drivers/clk/at91/at91sam9n12.c | 4 ++--
drivers/clk/at91/at91sam9rl.c | 4 ++--
drivers/clk/at91/at91sam9x5.c | 4 ++--
drivers/clk/at91/clk-master.c | 28 +++++++++++++++++++---------
drivers/clk/at91/dt-compat.c | 4 ++--
drivers/clk/at91/pmc.h | 6 ++++--
drivers/clk/at91/sam9x60.c | 4 ++--
drivers/clk/at91/sama5d2.c | 4 ++--
drivers/clk/at91/sama5d3.c | 4 ++--
drivers/clk/at91/sama5d4.c | 4 ++--
drivers/clk/at91/sama7g5.c | 4 ++--
14 files changed, 47 insertions(+), 35 deletions(-)
diff --git a/drivers/clk/at91/at91rm9200.c b/drivers/clk/at91/at91rm9200.c
index 83917a2c31bd..259e314ef40f 100644
--- a/drivers/clk/at91/at91rm9200.c
+++ b/drivers/clk/at91/at91rm9200.c
@@ -140,7 +140,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
parent_names[2] = "pllack";
parent_names[3] = "pllbck";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91rm9200_master_layout,
&rm9200_mck_characteristics,
&rm9200_mck_lock);
@@ -148,7 +148,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91rm9200_master_layout,
&rm9200_mck_characteristics,
&rm9200_mck_lock, CLK_SET_RATE_GATE, 0);
diff --git a/drivers/clk/at91/at91sam9260.c b/drivers/clk/at91/at91sam9260.c
index e9b56826a9be..f9bf65c77c9b 100644
--- a/drivers/clk/at91/at91sam9260.c
+++ b/drivers/clk/at91/at91sam9260.c
@@ -416,7 +416,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
parent_names[2] = "pllack";
parent_names[3] = "pllbck";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91rm9200_master_layout,
data->mck_characteristics,
&at91sam9260_mck_lock);
@@ -424,7 +424,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91rm9200_master_layout,
data->mck_characteristics,
&at91sam9260_mck_lock,
diff --git a/drivers/clk/at91/at91sam9g45.c b/drivers/clk/at91/at91sam9g45.c
index e25fb1bcafc7..c9313a7b32ea 100644
--- a/drivers/clk/at91/at91sam9g45.c
+++ b/drivers/clk/at91/at91sam9g45.c
@@ -156,7 +156,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
parent_names[2] = "plladivck";
parent_names[3] = "utmick";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91rm9200_master_layout,
&mck_characteristics,
&at91sam9g45_mck_lock);
@@ -164,7 +164,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91rm9200_master_layout,
&mck_characteristics,
&at91sam9g45_mck_lock,
diff --git a/drivers/clk/at91/at91sam9n12.c b/drivers/clk/at91/at91sam9n12.c
index 35f137fb89e9..608410bef120 100644
--- a/drivers/clk/at91/at91sam9n12.c
+++ b/drivers/clk/at91/at91sam9n12.c
@@ -183,7 +183,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
parent_names[2] = "plladivck";
parent_names[3] = "pllbck";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91sam9x5_master_layout,
&mck_characteristics,
&at91sam9n12_mck_lock);
@@ -191,7 +191,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91sam9x5_master_layout,
&mck_characteristics,
&at91sam9n12_mck_lock,
diff --git a/drivers/clk/at91/at91sam9rl.c b/drivers/clk/at91/at91sam9rl.c
index d3186dd34c26..90911cbd9690 100644
--- a/drivers/clk/at91/at91sam9rl.c
+++ b/drivers/clk/at91/at91sam9rl.c
@@ -120,7 +120,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
parent_names[2] = "pllack";
parent_names[3] = "utmick";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91rm9200_master_layout,
&sam9rl_mck_characteristics,
&sam9rl_mck_lock);
@@ -128,7 +128,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91rm9200_master_layout,
&sam9rl_mck_characteristics,
&sam9rl_mck_lock, CLK_SET_RATE_GATE, 0);
diff --git a/drivers/clk/at91/at91sam9x5.c b/drivers/clk/at91/at91sam9x5.c
index 57f41aab94b2..63097cdd4809 100644
--- a/drivers/clk/at91/at91sam9x5.c
+++ b/drivers/clk/at91/at91sam9x5.c
@@ -204,14 +204,14 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
parent_names[2] = "plladivck";
parent_names[3] = "utmick";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91sam9x5_master_layout,
&mck_characteristics, &mck_lock);
if (IS_ERR(hw))
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91sam9x5_master_layout,
&mck_characteristics, &mck_lock,
CLK_SET_RATE_GATE, 0);
diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c
index b7cd1924de52..15c46489ba85 100644
--- a/drivers/clk/at91/clk-master.c
+++ b/drivers/clk/at91/clk-master.c
@@ -473,18 +473,19 @@ static struct clk_hw * __init
at91_clk_register_master_internal(struct regmap *regmap,
const char *name, int num_parents,
const char **parent_names,
+ struct clk_hw **parent_hws,
const struct clk_master_layout *layout,
const struct clk_master_characteristics *characteristics,
const struct clk_ops *ops, spinlock_t *lock, u32 flags)
{
struct clk_master *master;
- struct clk_init_data init;
+ struct clk_init_data init = {};
struct clk_hw *hw;
unsigned int mckr;
unsigned long irqflags;
int ret;
- if (!name || !num_parents || !parent_names || !lock)
+ if (!name || !num_parents || !(parent_names || parent_hws) || !lock)
return ERR_PTR(-EINVAL);
master = kzalloc(sizeof(*master), GFP_KERNEL);
@@ -493,7 +494,10 @@ at91_clk_register_master_internal(struct regmap *regmap,
init.name = name;
init.ops = 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 = flags;
@@ -527,12 +531,13 @@ struct clk_hw * __init
at91_clk_register_master_pres(struct regmap *regmap,
const char *name, int num_parents,
const char **parent_names,
+ struct clk_hw **parent_hws,
const struct clk_master_layout *layout,
const struct clk_master_characteristics *characteristics,
spinlock_t *lock)
{
return at91_clk_register_master_internal(regmap, name, num_parents,
- parent_names, layout,
+ parent_names, parent_hws, layout,
characteristics,
&master_pres_ops,
lock, CLK_SET_RATE_GATE);
@@ -541,7 +546,7 @@ at91_clk_register_master_pres(struct regmap *regmap,
struct clk_hw * __init
at91_clk_register_master_div(struct regmap *regmap,
const char *name, const char *parent_name,
- const struct clk_master_layout *layout,
+ struct clk_hw *parent_hw, const struct clk_master_layout *layout,
const struct clk_master_characteristics *characteristics,
spinlock_t *lock, u32 flags, u32 safe_div)
{
@@ -554,7 +559,8 @@ at91_clk_register_master_div(struct regmap *regmap,
ops = &master_div_ops_chg;
hw = at91_clk_register_master_internal(regmap, name, 1,
- &parent_name, layout,
+ parent_name ? &parent_name : NULL,
+ parent_hw ? &parent_hw : NULL, layout,
characteristics, ops,
lock, flags);
@@ -806,18 +812,19 @@ struct clk_hw * __init
at91_clk_sama7g5_register_master(struct regmap *regmap,
const char *name, int num_parents,
const char **parent_names,
+ struct clk_hw **parent_hws,
u32 *mux_table,
spinlock_t *lock, u8 id,
bool critical, int chg_pid)
{
struct clk_master *master;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
unsigned long flags;
unsigned int val;
int ret;
- if (!name || !num_parents || !parent_names || !mux_table ||
+ if (!name || !num_parents || !(parent_names || parent_hws) || !mux_table ||
!lock || id > MASTER_MAX_ID)
return ERR_PTR(-EINVAL);
@@ -827,7 +834,10 @@ at91_clk_sama7g5_register_master(struct regmap *regmap,
init.name = name;
init.ops = &sama7g5_master_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;
if (chg_pid >= 0)
diff --git a/drivers/clk/at91/dt-compat.c b/drivers/clk/at91/dt-compat.c
index e5a56aaff96d..4a024bb97312 100644
--- a/drivers/clk/at91/dt-compat.c
+++ b/drivers/clk/at91/dt-compat.c
@@ -420,12 +420,12 @@ of_at91_clk_master_setup(struct device_node *np,
return;
hw = at91_clk_register_master_pres(regmap, "masterck_pres", num_parents,
- parent_names, layout,
+ parent_names, NULL, layout,
characteristics, &mck_lock);
if (IS_ERR(hw))
goto out_free_characteristics;
- hw = at91_clk_register_master_div(regmap, name, "masterck_pres",
+ hw = at91_clk_register_master_div(regmap, name, "masterck_pres", NULL,
layout, characteristics,
&mck_lock, CLK_SET_RATE_GATE, 0);
if (IS_ERR(hw))
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index e947c78a82d0..c09abb8ff8fe 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -177,13 +177,14 @@ at91_clk_register_sam9x5_main(struct regmap *regmap, const char *name,
struct clk_hw * __init
at91_clk_register_master_pres(struct regmap *regmap, const char *name,
int num_parents, const char **parent_names,
+ struct clk_hw **parent_hws,
const struct clk_master_layout *layout,
const struct clk_master_characteristics *characteristics,
spinlock_t *lock);
struct clk_hw * __init
at91_clk_register_master_div(struct regmap *regmap, const char *name,
- const char *parent_names,
+ const char *parent_names, struct clk_hw *parent_hw,
const struct clk_master_layout *layout,
const struct clk_master_characteristics *characteristics,
spinlock_t *lock, u32 flags, u32 safe_div);
@@ -191,7 +192,8 @@ at91_clk_register_master_div(struct regmap *regmap, const char *name,
struct clk_hw * __init
at91_clk_sama7g5_register_master(struct regmap *regmap,
const char *name, int num_parents,
- const char **parent_names, u32 *mux_table,
+ const char **parent_names,
+ struct clk_hw **parent_hws, u32 *mux_table,
spinlock_t *lock, u8 id, bool critical,
int chg_pid);
diff --git a/drivers/clk/at91/sam9x60.c b/drivers/clk/at91/sam9x60.c
index dcc8f8142180..3ff1eb3bee81 100644
--- a/drivers/clk/at91/sam9x60.c
+++ b/drivers/clk/at91/sam9x60.c
@@ -280,13 +280,13 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
parent_names[1] = "mainck";
parent_names[2] = "pllack_divck";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 3,
- parent_names, &sam9x60_master_layout,
+ parent_names, NULL, &sam9x60_master_layout,
&mck_characteristics, &mck_lock);
if (IS_ERR(hw))
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres", &sam9x60_master_layout,
+ "masterck_pres", NULL, &sam9x60_master_layout,
&mck_characteristics, &mck_lock,
CLK_SET_RATE_GATE, 0);
if (IS_ERR(hw))
diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index 18695c9c9beb..c47d43a7e95b 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -260,14 +260,14 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
parent_names[2] = "plladivck";
parent_names[3] = "utmick";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91sam9x5_master_layout,
&mck_characteristics, &mck_lock);
if (IS_ERR(hw))
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91sam9x5_master_layout,
&mck_characteristics, &mck_lock,
CLK_SET_RATE_GATE, 0);
diff --git a/drivers/clk/at91/sama5d3.c b/drivers/clk/at91/sama5d3.c
index 88de1cccbb46..d605a540b30f 100644
--- a/drivers/clk/at91/sama5d3.c
+++ b/drivers/clk/at91/sama5d3.c
@@ -183,14 +183,14 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
parent_names[2] = "plladivck";
parent_names[3] = "utmick";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91sam9x5_master_layout,
&mck_characteristics, &mck_lock);
if (IS_ERR(hw))
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91sam9x5_master_layout,
&mck_characteristics, &mck_lock,
CLK_SET_RATE_GATE, 0);
diff --git a/drivers/clk/at91/sama5d4.c b/drivers/clk/at91/sama5d4.c
index 4e6e276bbc4c..21a61840d5f3 100644
--- a/drivers/clk/at91/sama5d4.c
+++ b/drivers/clk/at91/sama5d4.c
@@ -198,14 +198,14 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
parent_names[2] = "plladivck";
parent_names[3] = "utmick";
hw = at91_clk_register_master_pres(regmap, "masterck_pres", 4,
- parent_names,
+ parent_names, NULL,
&at91sam9x5_master_layout,
&mck_characteristics, &mck_lock);
if (IS_ERR(hw))
goto err_free;
hw = at91_clk_register_master_div(regmap, "masterck_div",
- "masterck_pres",
+ "masterck_pres", NULL,
&at91sam9x5_master_layout,
&mck_characteristics, &mck_lock,
CLK_SET_RATE_GATE, 0);
diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c
index e754c127b2b8..989d66f5370e 100644
--- a/drivers/clk/at91/sama7g5.c
+++ b/drivers/clk/at91/sama7g5.c
@@ -995,7 +995,7 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
}
parent_names[0] = "cpupll_divpmcck";
- hw = at91_clk_register_master_div(regmap, "mck0", "cpupll_divpmcck",
+ hw = at91_clk_register_master_div(regmap, "mck0", "cpupll_divpmcck", NULL,
&mck0_layout, &mck0_characteristics,
&pmc_mck0_lock, CLK_GET_RATE_NOCACHE, 5);
if (IS_ERR(hw))
@@ -1022,7 +1022,7 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
sama7g5_mckx[i].ep_count);
hw = at91_clk_sama7g5_register_master(regmap, sama7g5_mckx[i].n,
- num_parents, parent_names, mux_table,
+ num_parents, parent_names, NULL, mux_table,
&pmc_mckX_lock, sama7g5_mckx[i].id,
sama7g5_mckx[i].c,
sama7g5_mckx[i].ep_chg_id);
--
2.34.1
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