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clk: at91: sckc: switch to parent_data/parent_hw

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Switch slow clock drivers to use parent_data and parent_hw.
With this parent-child relation is described with pointers rather
than strings.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230615093227.576102-10-claudiu.beznea@microchip.com
This commit is contained in:
Claudiu Beznea
2023-06-15 12:32:25 +03:00
parent a673dae8c4
commit 8aa1db9cce
1 changed files with 48 additions and 27 deletions
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75
drivers/clk/at91/sckc.c
View File

@@ -117,17 +117,17 @@ static const struct clk_ops slow_osc_ops = {
static struct clk_hw * __init
at91_clk_register_slow_osc(void __iomem *sckcr,
const char *name,
const char *parent_name,
const struct clk_parent_data *parent_data,
unsigned long startup,
bool bypass,
const struct clk_slow_bits *bits)
{
struct clk_slow_osc *osc;
struct clk_hw *hw;
struct clk_init_data init;
struct clk_init_data init = {};
int ret;
if (!sckcr || !name || !parent_name)
if (!sckcr || !name || !parent_data)
return ERR_PTR(-EINVAL);
osc = kzalloc(sizeof(*osc), GFP_KERNEL);
@@ -136,7 +136,7 @@ at91_clk_register_slow_osc(void __iomem *sckcr,
init.name = name;
init.ops = &slow_osc_ops;
init.parent_names = &parent_name;
init.parent_data = parent_data;
init.num_parents = 1;
init.flags = CLK_IGNORE_UNUSED;
@@ -317,16 +317,16 @@ static const struct clk_ops sam9x5_slow_ops = {
static struct clk_hw * __init
at91_clk_register_sam9x5_slow(void __iomem *sckcr,
const char *name,
const char **parent_names,
const struct clk_hw **parent_hws,
int num_parents,
const struct clk_slow_bits *bits)
{
struct clk_sam9x5_slow *slowck;
struct clk_hw *hw;
struct clk_init_data init;
struct clk_init_data init = {};
int ret;
if (!sckcr || !name || !parent_names || !num_parents)
if (!sckcr || !name || !parent_hws || !num_parents)
return ERR_PTR(-EINVAL);
slowck = kzalloc(sizeof(*slowck), GFP_KERNEL);
@@ -335,7 +335,7 @@ at91_clk_register_sam9x5_slow(void __iomem *sckcr,
init.name = name;
init.ops = &sam9x5_slow_ops;
init.parent_names = parent_names;
init.parent_hws = parent_hws;
init.num_parents = num_parents;
init.flags = 0;
@@ -366,18 +366,21 @@ static void __init at91sam9x5_sckc_register(struct device_node *np,
unsigned int rc_osc_startup_us,
const struct clk_slow_bits *bits)
{
const char *parent_names[2] = { "slow_rc_osc", "slow_osc" };
void __iomem *regbase = of_iomap(np, 0);
struct device_node *child = NULL;
const char *xtal_name;
struct clk_hw *slow_rc, *slow_osc, *slowck;
static struct clk_parent_data parent_data = {
.name = "slow_xtal",
};
const struct clk_hw *parent_hws[2];
bool bypass;
int ret;
if (!regbase)
return;
slow_rc = at91_clk_register_slow_rc_osc(regbase, parent_names[0],
slow_rc = at91_clk_register_slow_rc_osc(regbase, "slow_rc_osc",
32768, 50000000,
rc_osc_startup_us, bits);
if (IS_ERR(slow_rc))
@@ -401,12 +404,16 @@ static void __init at91sam9x5_sckc_register(struct device_node *np,
if (!xtal_name)
goto unregister_slow_rc;
slow_osc = at91_clk_register_slow_osc(regbase, parent_names[1],
xtal_name, 1200000, bypass, bits);
parent_data.fw_name = xtal_name;
slow_osc = at91_clk_register_slow_osc(regbase, "slow_osc",
&parent_data, 1200000, bypass, bits);
if (IS_ERR(slow_osc))
goto unregister_slow_rc;
slowck = at91_clk_register_sam9x5_slow(regbase, "slowck", parent_names,
parent_hws[0] = slow_rc;
parent_hws[1] = slow_osc;
slowck = at91_clk_register_sam9x5_slow(regbase, "slowck", parent_hws,
2, bits);
if (IS_ERR(slowck))
goto unregister_slow_osc;
@@ -464,14 +471,17 @@ static void __init of_sam9x60_sckc_setup(struct device_node *np)
struct clk_hw_onecell_data *clk_data;
struct clk_hw *slow_rc, *slow_osc;
const char *xtal_name;
const char *parent_names[2] = { "slow_rc_osc", "slow_osc" };
const struct clk_hw *parent_hws[2];
static struct clk_parent_data parent_data = {
.name = "slow_xtal",
};
bool bypass;
int ret;
if (!regbase)
return;
slow_rc = clk_hw_register_fixed_rate_with_accuracy(NULL, parent_names[0],
slow_rc = clk_hw_register_fixed_rate_with_accuracy(NULL, "slow_rc_osc",
NULL, 0, 32768,
93750000);
if (IS_ERR(slow_rc))
@@ -481,9 +491,10 @@ static void __init of_sam9x60_sckc_setup(struct device_node *np)
if (!xtal_name)
goto unregister_slow_rc;
parent_data.fw_name = xtal_name;
bypass = of_property_read_bool(np, "atmel,osc-bypass");
slow_osc = at91_clk_register_slow_osc(regbase, parent_names[1],
xtal_name, 5000000, bypass,
slow_osc = at91_clk_register_slow_osc(regbase, "slow_osc",
&parent_data, 5000000, bypass,
&at91sam9x60_bits);
if (IS_ERR(slow_osc))
goto unregister_slow_rc;
@@ -494,14 +505,16 @@ static void __init of_sam9x60_sckc_setup(struct device_node *np)
/* MD_SLCK and TD_SLCK. */
clk_data->num = 2;
clk_data->hws[0] = clk_hw_register_fixed_rate(NULL, "md_slck",
parent_names[0],
0, 32768);
clk_data->hws[0] = clk_hw_register_fixed_rate_parent_hw(NULL, "md_slck",
slow_rc,
0, 32768);
if (IS_ERR(clk_data->hws[0]))
goto clk_data_free;
parent_hws[0] = slow_rc;
parent_hws[1] = slow_osc;
clk_data->hws[1] = at91_clk_register_sam9x5_slow(regbase, "td_slck",
parent_names, 2,
parent_hws, 2,
&at91sam9x60_bits);
if (IS_ERR(clk_data->hws[1]))
goto unregister_md_slck;
@@ -572,30 +585,36 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np)
void __iomem *regbase = of_iomap(np, 0);
struct clk_hw *slow_rc, *slowck;
struct clk_sama5d4_slow_osc *osc;
struct clk_init_data init;
struct clk_init_data init = {};
const char *xtal_name;
const char *parent_names[2] = { "slow_rc_osc", "slow_osc" };
const struct clk_hw *parent_hws[2];
static struct clk_parent_data parent_data = {
.name = "slow_xtal",
};
int ret;
if (!regbase)
return;
slow_rc = clk_hw_register_fixed_rate_with_accuracy(NULL,
parent_names[0],
"slow_rc_osc",
NULL, 0, 32768,
250000000);
if (IS_ERR(slow_rc))
return;
xtal_name = of_clk_get_parent_name(np, 0);
if (!xtal_name)
goto unregister_slow_rc;
parent_data.fw_name = xtal_name;
osc = kzalloc(sizeof(*osc), GFP_KERNEL);
if (!osc)
goto unregister_slow_rc;
init.name = parent_names[1];
init.name = "slow_osc";
init.ops = &sama5d4_slow_osc_ops;
init.parent_names = &xtal_name;
init.parent_data = &parent_data;
init.num_parents = 1;
init.flags = CLK_IGNORE_UNUSED;
@@ -608,8 +627,10 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np)
if (ret)
goto free_slow_osc_data;
parent_hws[0] = slow_rc;
parent_hws[1] = &osc->hw;
slowck = at91_clk_register_sam9x5_slow(regbase, "slowck",
parent_names, 2,
parent_hws, 2,
&at91sama5d4_bits);
if (IS_ERR(slowck))
goto unregister_slow_osc;