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clk: clocking-wizard: use newer clk_hw API 

Utilise clock provider API with struct clk_hw instances instead of the
consumer-side struct clk.

Signed-off-by: Harry Austen <hpausten@protonmail.com>
Link: https://lore.kernel.org/r/20240913191037.2690-3-hpausten@protonmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
pull/1085/head
Harry Austen 2024-09-13 19:11:20 +00:00 committed by Stephen Boyd
parent 9c9cd4de25
commit bb487924b1
1 changed files with 40 additions and 37 deletions
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77
drivers/clk/xilinx/clk-xlnx-clock-wizard.c
View File

@ -17,6 +17,7 @@
#include <linux/of.h>
#include <linux/math64.h>
#include <linux/module.h>
#include <linux/overflow.h>
#include <linux/err.h>
#include <linux/iopoll.h>
@ -121,26 +122,24 @@ enum clk_wzrd_int_clks {
/**
* struct clk_wzrd - Clock wizard private data structure
*
* @clk_data: Clock data
* @nb: Notifier block
* @base: Memory base
* @clk_in1: Handle to input clock 'clk_in1'
* @axi_clk: Handle to input clock 's_axi_aclk'
* @clks_internal: Internal clocks
* @clkout: Output clocks
* @speed_grade: Speed grade of the device
* @suspended: Flag indicating power state of the device
* @clk_data: Output clock data
*/
struct clk_wzrd {
struct clk_onecell_data clk_data;
struct notifier_block nb;
void __iomem *base;
struct clk *clk_in1;
struct clk *axi_clk;
struct clk *clks_internal[wzrd_clk_int_max];
struct clk *clkout[WZRD_NUM_OUTPUTS];
struct clk_hw *clks_internal[wzrd_clk_int_max];
unsigned int speed_grade;
bool suspended;
struct clk_hw_onecell_data clk_data;
};
/**
@ -765,7 +764,7 @@ static const struct clk_ops clk_wzrd_clk_divider_ops_f = {
.recalc_rate = clk_wzrd_recalc_ratef,
};
static struct clk *clk_wzrd_register_divf(struct device *dev,
static struct clk_hw *clk_wzrd_register_divf(struct device *dev,
const char *name,
const char *parent_name,
unsigned long flags,
@ -805,10 +804,10 @@ static struct clk *clk_wzrd_register_divf(struct device *dev,
if (ret)
return ERR_PTR(ret);
return hw->clk;
return hw;
}
static struct clk *clk_wzrd_ver_register_divider(struct device *dev,
static struct clk_hw *clk_wzrd_ver_register_divider(struct device *dev,
const char *name,
const char *parent_name,
unsigned long flags,
@ -852,10 +851,10 @@ static struct clk *clk_wzrd_ver_register_divider(struct device *dev,
if (ret)
return ERR_PTR(ret);
return hw->clk;
return hw;
}
static struct clk *clk_wzrd_register_divider(struct device *dev,
static struct clk_hw *clk_wzrd_register_divider(struct device *dev,
const char *name,
const char *parent_name,
unsigned long flags,
@ -898,7 +897,7 @@ static struct clk *clk_wzrd_register_divider(struct device *dev,
if (ret)
return ERR_PTR(ret);
return hw->clk;
return hw;
}
static int clk_wzrd_clk_notifier(struct notifier_block *nb, unsigned long event,
@ -978,7 +977,12 @@ static int clk_wzrd_probe(struct platform_device *pdev)
int nr_outputs;
int i, ret;
clk_wzrd = devm_kzalloc(&pdev->dev, sizeof(*clk_wzrd), GFP_KERNEL);
ret = of_property_read_u32(np, "xlnx,nr-outputs", &nr_outputs);
if (ret || nr_outputs > WZRD_NUM_OUTPUTS)
return -EINVAL;
clk_wzrd = devm_kzalloc(&pdev->dev, struct_size(clk_wzrd, clk_data.hws, nr_outputs),
GFP_KERNEL);
if (!clk_wzrd)
return -ENOMEM;
platform_set_drvdata(pdev, clk_wzrd);
@ -1016,17 +1020,13 @@ static int clk_wzrd_probe(struct platform_device *pdev)
if (data)
is_versal = data->is_versal;
ret = of_property_read_u32(np, "xlnx,nr-outputs", &nr_outputs);
if (ret || nr_outputs > WZRD_NUM_OUTPUTS)
return -EINVAL;
clkout_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_out0", dev_name(&pdev->dev));
if (!clkout_name)
return -ENOMEM;
if (is_versal) {
if (nr_outputs == 1) {
clk_wzrd->clkout[0] = clk_wzrd_ver_register_divider
clk_wzrd->clk_data.hws[0] = clk_wzrd_ver_register_divider
(&pdev->dev, clkout_name,
__clk_get_name(clk_wzrd->clk_in1), 0,
clk_wzrd->base, WZRD_CLK_CFG_REG(is_versal, 3),
@ -1059,7 +1059,7 @@ static int clk_wzrd_probe(struct platform_device *pdev)
div = 64;
} else {
if (nr_outputs == 1) {
clk_wzrd->clkout[0] = clk_wzrd_register_divider
clk_wzrd->clk_data.hws[0] = clk_wzrd_register_divider
(&pdev->dev, clkout_name,
__clk_get_name(clk_wzrd->clk_in1), 0,
clk_wzrd->base, WZRD_CLK_CFG_REG(is_versal, 3),
@ -1082,7 +1082,7 @@ static int clk_wzrd_probe(struct platform_device *pdev)
clk_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_mul", dev_name(&pdev->dev));
if (!clk_name)
return -ENOMEM;
clk_wzrd->clks_internal[wzrd_clk_mul] = clk_register_fixed_factor
clk_wzrd->clks_internal[wzrd_clk_mul] = clk_hw_register_fixed_factor
(&pdev->dev, clk_name,
__clk_get_name(clk_wzrd->clk_in1),
0, mult, div);
@ -1108,15 +1108,15 @@ static int clk_wzrd_probe(struct platform_device *pdev)
if (!div)
div = 1;
clk_mul_name = __clk_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]);
clk_mul_name = clk_hw_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]);
clk_wzrd->clks_internal[wzrd_clk_mul_div] =
clk_register_fixed_factor(&pdev->dev, clk_name,
clk_mul_name, 0, 1, div);
clk_hw_register_fixed_factor(&pdev->dev, clk_name,
clk_mul_name, 0, 1, div);
} else {
ctrl_reg = clk_wzrd->base + WZRD_CLK_CFG_REG(is_versal, 0);
clk_wzrd->clks_internal[wzrd_clk_mul_div] = clk_register_divider
clk_wzrd->clks_internal[wzrd_clk_mul_div] = clk_hw_register_divider
(&pdev->dev, clk_name,
__clk_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]),
clk_hw_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]),
flags, ctrl_reg, 0, 8, CLK_DIVIDER_ONE_BASED |
CLK_DIVIDER_ALLOW_ZERO, &clkwzrd_lock);
}
@ -1136,7 +1136,7 @@ static int clk_wzrd_probe(struct platform_device *pdev)
}
if (is_versal) {
clk_wzrd->clkout[i] = clk_wzrd_ver_register_divider
clk_wzrd->clk_data.hws[i] = clk_wzrd_ver_register_divider
(&pdev->dev,
clkout_name, clk_name, 0,
clk_wzrd->base,
@ -1148,7 +1148,7 @@ static int clk_wzrd_probe(struct platform_device *pdev)
DIV_O, &clkwzrd_lock);
} else {
if (!i)
clk_wzrd->clkout[i] = clk_wzrd_register_divf
clk_wzrd->clk_data.hws[i] = clk_wzrd_register_divf
(&pdev->dev, clkout_name, clk_name, flags, clk_wzrd->base,
(WZRD_CLK_CFG_REG(is_versal, 2) + i * 12),
WZRD_CLKOUT_DIVIDE_SHIFT,
@ -1156,7 +1156,7 @@ static int clk_wzrd_probe(struct platform_device *pdev)
CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
DIV_O, &clkwzrd_lock);
else
clk_wzrd->clkout[i] = clk_wzrd_register_divider
clk_wzrd->clk_data.hws[i] = clk_wzrd_register_divider
(&pdev->dev, clkout_name, clk_name, 0, clk_wzrd->base,
(WZRD_CLK_CFG_REG(is_versal, 2) + i * 12),
WZRD_CLKOUT_DIVIDE_SHIFT,
@ -1164,22 +1164,25 @@ static int clk_wzrd_probe(struct platform_device *pdev)
CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
DIV_O, &clkwzrd_lock);
}
if (IS_ERR(clk_wzrd->clkout[i])) {
if (IS_ERR(clk_wzrd->clk_data.hws[i])) {
int j;
for (j = i + 1; j < nr_outputs; j++)
clk_unregister(clk_wzrd->clkout[j]);
clk_hw_unregister(clk_wzrd->clk_data.hws[j]);
dev_err(&pdev->dev,
"unable to register divider clock\n");
ret = PTR_ERR(clk_wzrd->clkout[i]);
ret = PTR_ERR(clk_wzrd->clk_data.hws[i]);
goto err_rm_int_clks;
}
}
out:
clk_wzrd->clk_data.clks = clk_wzrd->clkout;
clk_wzrd->clk_data.clk_num = ARRAY_SIZE(clk_wzrd->clkout);
of_clk_add_provider(np, of_clk_src_onecell_get, &clk_wzrd->clk_data);
clk_wzrd->clk_data.num = nr_outputs;
ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, &clk_wzrd->clk_data);
if (ret) {
dev_err(&pdev->dev, "unable to register clock provider\n");
return ret;
}
if (clk_wzrd->speed_grade) {
clk_wzrd->nb.notifier_call = clk_wzrd_clk_notifier;
@ -1200,9 +1203,9 @@ out:
return 0;
err_rm_int_clks:
clk_unregister(clk_wzrd->clks_internal[1]);
clk_hw_unregister(clk_wzrd->clks_internal[1]);
err_rm_int_clk:
clk_unregister(clk_wzrd->clks_internal[0]);
clk_hw_unregister(clk_wzrd->clks_internal[0]);
return ret;
}
@ -1214,9 +1217,9 @@ static void clk_wzrd_remove(struct platform_device *pdev)
of_clk_del_provider(pdev->dev.of_node);
for (i = 0; i < WZRD_NUM_OUTPUTS; i++)
clk_unregister(clk_wzrd->clkout[i]);
clk_hw_unregister(clk_wzrd->clk_data.hws[i]);
for (i = 0; i < wzrd_clk_int_max; i++)
clk_unregister(clk_wzrd->clks_internal[i]);
clk_hw_unregister(clk_wzrd->clks_internal[i]);
}
static const struct of_device_id clk_wzrd_ids[] = {