[PATCH v2 03/32] clk: at91: clk-sam9x60-pll: use clk_parent_data
From: Ryan.Wanner
Date: Tue Jun 24 2025 - 11:22:43 EST
From: Claudiu Beznea <claudiu.beznea@xxxxxxxxx>
Use struct clk_parent_data instead of struct parent_hw as this leads
to less usage of __clk_get_hw() in SoC specific clock drivers and simpler
conversion of existing SoC specific clock drivers from parent_names to
modern clk_parent_data structures. As clk-sam9x60-pll need to know
parent's rate at initialization we pass it now from SoC specific drivers.
This will lead in the end at removing __clk_get_hw() in SoC specific
drivers (that will be solved by subsequent commits).
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxx>
[ryan.wanner@xxxxxxxxxxxxx: Remove SoC specific driver changes, those
will be added in subsequent commits.]
Signed-off-by: Ryan Wanner <Ryan.Wanner@xxxxxxxxxxxxx>
---
drivers/clk/at91/clk-sam9x60-pll.c | 14 +++++---------
drivers/clk/at91/pmc.h | 5 +++--
2 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/clk/at91/clk-sam9x60-pll.c b/drivers/clk/at91/clk-sam9x60-pll.c
index cefd9948e103..03a7d00dcc6d 100644
--- a/drivers/clk/at91/clk-sam9x60-pll.c
+++ b/drivers/clk/at91/clk-sam9x60-pll.c
@@ -630,19 +630,19 @@ static const struct clk_ops sam9x60_fixed_div_pll_ops = {
struct clk_hw * __init
sam9x60_clk_register_frac_pll(struct regmap *regmap, spinlock_t *lock,
- const char *name, const char *parent_name,
- struct clk_hw *parent_hw, u8 id,
+ const char *name, const struct clk_parent_data *parent_data,
+ unsigned long parent_rate, u8 id,
const struct clk_pll_characteristics *characteristics,
const struct clk_pll_layout *layout, u32 flags)
{
struct sam9x60_frac *frac;
struct clk_hw *hw;
struct clk_init_data init = {};
- unsigned long parent_rate, irqflags;
+ unsigned long irqflags;
unsigned int val;
int ret;
- if (id > PLL_MAX_ID || !lock || !parent_hw)
+ if (id > PLL_MAX_ID || !lock || !parent_data)
return ERR_PTR(-EINVAL);
frac = kzalloc(sizeof(*frac), GFP_KERNEL);
@@ -650,10 +650,7 @@ sam9x60_clk_register_frac_pll(struct regmap *regmap, spinlock_t *lock,
return ERR_PTR(-ENOMEM);
init.name = name;
- if (parent_name)
- init.parent_names = &parent_name;
- else
- init.parent_hws = (const struct clk_hw **)&parent_hw;
+ init.parent_data = (const struct clk_parent_data *)parent_data;
init.num_parents = 1;
if (flags & CLK_SET_RATE_GATE)
init.ops = &sam9x60_frac_pll_ops;
@@ -684,7 +681,6 @@ sam9x60_clk_register_frac_pll(struct regmap *regmap, spinlock_t *lock,
* its rate leading to enabling this PLL with unsupported
* rate. This will lead to PLL not being locked at all.
*/
- parent_rate = clk_hw_get_rate(parent_hw);
if (!parent_rate) {
hw = ERR_PTR(-EINVAL);
goto free;
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index 63d4c425bed5..b43f6652417f 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -255,8 +255,9 @@ sam9x60_clk_register_div_pll(struct regmap *regmap, spinlock_t *lock,
struct clk_hw * __init
sam9x60_clk_register_frac_pll(struct regmap *regmap, spinlock_t *lock,
- const char *name, const char *parent_name,
- struct clk_hw *parent_hw, u8 id,
+ const char *name,
+ const struct clk_parent_data *parent_data,
+ unsigned long parent_rate, u8 id,
const struct clk_pll_characteristics *characteristics,
const struct clk_pll_layout *layout, u32 flags);
--
2.43.0