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

From: Ryan.Wanner
Date: Tue Jun 24 2025 - 11:25:44 EST


From: Claudiu Beznea <claudiu.beznea@xxxxxxxxx>

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@xxxxxxxxx>
[ryan.wanner@xxxxxxxxxxxxx: Remove SoC specific changes as they are
going to be coalesced into one SoC specific commit.]
Signed-off-by: Ryan Wanner <Ryan.Wanner@xxxxxxxxxxxxx>
---
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