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clk: at91: clk-system: add support for parent_hw

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Add support for parent_hw in system 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-system 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@microchip.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230615093227.576102-7-claudiu.beznea@microchip.com
This commit is contained in:
Claudiu Beznea 2023-06-15 12:32:22 +03:00
parent 1a2669df3c
commit 1a537f6257
14 changed files with 24 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/clk/at91/at91rm9200.c
View File

@ -182,7 +182,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(at91rm9200_systemck); i++) {
hw = at91_clk_register_system(regmap, at91rm9200_systemck[i].n,
at91rm9200_systemck[i].p,
at91rm9200_systemck[i].p, NULL,
at91rm9200_systemck[i].id, 0);
if (IS_ERR(hw))
goto err_free;

2
drivers/clk/at91/at91sam9260.c
View File

@ -459,7 +459,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
for (i = 0; i < data->num_sck; i++) {
hw = at91_clk_register_system(regmap, data->sck[i].n,
data->sck[i].p,
data->sck[i].p, NULL,
data->sck[i].id, 0);
if (IS_ERR(hw))
goto err_free;

2
drivers/clk/at91/at91sam9g45.c
View File

@ -202,7 +202,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(at91sam9g45_systemck); i++) {
hw = at91_clk_register_system(regmap, at91sam9g45_systemck[i].n,
at91sam9g45_systemck[i].p,
at91sam9g45_systemck[i].p, NULL,
at91sam9g45_systemck[i].id,
at91sam9g45_systemck[i].flags);
if (IS_ERR(hw))

2
drivers/clk/at91/at91sam9n12.c
View File

@ -227,7 +227,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(at91sam9n12_systemck); i++) {
hw = at91_clk_register_system(regmap, at91sam9n12_systemck[i].n,
at91sam9n12_systemck[i].p,
at91sam9n12_systemck[i].p, NULL,
at91sam9n12_systemck[i].id,
at91sam9n12_systemck[i].flags);
if (IS_ERR(hw))

2
drivers/clk/at91/at91sam9rl.c
View File

@ -159,7 +159,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(at91sam9rl_systemck); i++) {
hw = at91_clk_register_system(regmap, at91sam9rl_systemck[i].n,
at91sam9rl_systemck[i].p,
at91sam9rl_systemck[i].p, NULL,
at91sam9rl_systemck[i].id, 0);
if (IS_ERR(hw))
goto err_free;

4
drivers/clk/at91/at91sam9x5.c
View File

@ -252,7 +252,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
for (i = 0; i < ARRAY_SIZE(at91sam9x5_systemck); i++) {
hw = at91_clk_register_system(regmap, at91sam9x5_systemck[i].n,
at91sam9x5_systemck[i].p,
at91sam9x5_systemck[i].p, NULL,
at91sam9x5_systemck[i].id,
at91sam9x5_systemck[i].flags);
if (IS_ERR(hw))
@ -263,7 +263,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
if (has_lcdck) {
hw = at91_clk_register_system(regmap, "lcdck", "masterck_div",
3, 0);
NULL, 3, 0);
if (IS_ERR(hw))
goto err_free;

12
drivers/clk/at91/clk-system.c
View File

@ -105,14 +105,15 @@ static const struct clk_ops system_ops = {
struct clk_hw * __init
at91_clk_register_system(struct regmap *regmap, const char *name,
const char *parent_name, u8 id, unsigned long flags)
const char *parent_name, struct clk_hw *parent_hw, u8 id,
unsigned long flags)
{
struct clk_system *sys;
struct clk_hw *hw;
struct clk_init_data init;
struct clk_init_data init = {};
int ret;
if (!parent_name || id > SYSTEM_MAX_ID)
if (!(parent_name || parent_hw) || id > SYSTEM_MAX_ID)
return ERR_PTR(-EINVAL);
sys = kzalloc(sizeof(*sys), GFP_KERNEL);
@ -121,7 +122,10 @@ at91_clk_register_system(struct regmap *regmap, const char *name,
init.name = name;
init.ops = &system_ops;
init.parent_names = &parent_name;
if (parent_hw)
init.parent_hws = (const struct clk_hw **)&parent_hw;
else
init.parent_names = &parent_name;
init.num_parents = 1;
init.flags = CLK_SET_RATE_PARENT | flags;

4
drivers/clk/at91/dt-compat.c
View File

@ -908,8 +908,8 @@ static void __init of_at91rm9200_clk_sys_setup(struct device_node *np)
if (!strcmp(sysclknp->name, "ddrck"))
flags = CLK_IS_CRITICAL;
hw = at91_clk_register_system(regmap, name, parent_name, id,
flags);
hw = at91_clk_register_system(regmap, name, parent_name, NULL,
id, flags);
if (IS_ERR(hw))
continue;

3
drivers/clk/at91/pmc.h
View File

@ -251,7 +251,8 @@ at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name,
struct clk_hw * __init
at91_clk_register_system(struct regmap *regmap, const char *name,
const char *parent_name, u8 id, unsigned long flags);
const char *parent_name, struct clk_hw *parent_hw,
u8 id, unsigned long flags);
struct clk_hw * __init
at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,

2
drivers/clk/at91/sam9x60.c
View File

@ -324,7 +324,7 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(sam9x60_systemck); i++) {
hw = at91_clk_register_system(regmap, sam9x60_systemck[i].n,
sam9x60_systemck[i].p,
sam9x60_systemck[i].p, NULL,
sam9x60_systemck[i].id,
sam9x60_systemck[i].flags);
if (IS_ERR(hw))

2
drivers/clk/at91/sama5d2.c
View File

@ -311,7 +311,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(sama5d2_systemck); i++) {
hw = at91_clk_register_system(regmap, sama5d2_systemck[i].n,
sama5d2_systemck[i].p,
sama5d2_systemck[i].p, NULL,
sama5d2_systemck[i].id,
sama5d2_systemck[i].flags);
if (IS_ERR(hw))

2
drivers/clk/at91/sama5d3.c
View File

@ -231,7 +231,7 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(sama5d3_systemck); i++) {
hw = at91_clk_register_system(regmap, sama5d3_systemck[i].n,
sama5d3_systemck[i].p,
sama5d3_systemck[i].p, NULL,
sama5d3_systemck[i].id,
sama5d3_systemck[i].flags);
if (IS_ERR(hw))

2
drivers/clk/at91/sama5d4.c
View File

@ -254,7 +254,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(sama5d4_systemck); i++) {
hw = at91_clk_register_system(regmap, sama5d4_systemck[i].n,
sama5d4_systemck[i].p,
sama5d4_systemck[i].p, NULL,
sama5d4_systemck[i].id,
sama5d4_systemck[i].flags);
if (IS_ERR(hw))

2
drivers/clk/at91/sama7g5.c
View File

@ -1067,7 +1067,7 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
for (i = 0; i < ARRAY_SIZE(sama7g5_systemck); i++) {
hw = at91_clk_register_system(regmap, sama7g5_systemck[i].n,
sama7g5_systemck[i].p,
sama7g5_systemck[i].p, NULL,
sama7g5_systemck[i].id, 0);
if (IS_ERR(hw))
goto err_free;