@@ -94,7 +94,6 @@ struct sti_pwm_chip {
struct regmap_field *pwm_cpt_en;
struct regmap_field *pwm_cpt_int_en;
struct regmap_field *pwm_cpt_int_stat;
- struct pwm_chip chip;
struct pwm_device *cur;
unsigned long configured;
unsigned int en_count;
@@ -114,7 +113,7 @@ static const struct reg_field sti_pwm_regfields[MAX_REGFIELDS] = {
static inline struct sti_pwm_chip *to_sti_pwmchip(struct pwm_chip *chip)
{
- return container_of(chip, struct sti_pwm_chip, chip);
+ return pwmchip_get_drvdata(chip);
}
/*
@@ -503,10 +502,6 @@ static int sti_pwm_probe_dt(struct sti_pwm_chip *pc)
u32 num_devs;
int ret;
- ret = of_property_read_u32(np, "st,pwm-num-chan", &num_devs);
- if (!ret)
- cdata->pwm_num_devs = num_devs;
-
ret = of_property_read_u32(np, "st,capture-num-chan", &num_devs);
if (!ret)
cdata->cpt_num_devs = num_devs;
@@ -561,13 +556,18 @@ static int sti_pwm_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct sti_pwm_compat_data *cdata;
+ struct pwm_chip *chip;
struct sti_pwm_chip *pc;
unsigned int i;
int irq, ret;
+ u32 num_devs = 0;
- pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL);
- if (!pc)
- return -ENOMEM;
+ of_property_read_u32(dev->of_node, "st,pwm-num-chan", &num_devs);
+
+ chip = devm_pwmchip_alloc(dev, num_devs, sizeof(*pc));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ pc = to_sti_pwmchip(chip);
cdata = devm_kzalloc(dev, sizeof(*cdata), GFP_KERNEL);
if (!cdata)
@@ -600,7 +600,7 @@ static int sti_pwm_probe(struct platform_device *pdev)
cdata->reg_fields = sti_pwm_regfields;
cdata->max_prescale = 0xff;
cdata->max_pwm_cnt = 255;
- cdata->pwm_num_devs = 0;
+ cdata->pwm_num_devs = num_devs;
cdata->cpt_num_devs = 0;
pc->cdata = cdata;
@@ -644,9 +644,8 @@ static int sti_pwm_probe(struct platform_device *pdev)
return -ENOMEM;
}
- pc->chip.dev = dev;
- pc->chip.ops = &sti_pwm_ops;
- pc->chip.npwm = pc->cdata->pwm_num_devs;
+ chip->ops = &sti_pwm_ops;
+ chip->npwm = pc->cdata->pwm_num_devs;
for (i = 0; i < cdata->cpt_num_devs; i++) {
struct sti_cpt_ddata *ddata = &cdata->ddata[i];
@@ -655,23 +654,24 @@ static int sti_pwm_probe(struct platform_device *pdev)
mutex_init(&ddata->lock);
}
- ret = pwmchip_add(&pc->chip);
+ ret = pwmchip_add(chip);
if (ret < 0) {
clk_unprepare(pc->pwm_clk);
clk_unprepare(pc->cpt_clk);
return ret;
}
- platform_set_drvdata(pdev, pc);
+ platform_set_drvdata(pdev, chip);
return 0;
}
static void sti_pwm_remove(struct platform_device *pdev)
{
- struct sti_pwm_chip *pc = platform_get_drvdata(pdev);
+ struct pwm_chip *chip = platform_get_drvdata(pdev);
+ struct sti_pwm_chip *pc = to_sti_pwmchip(chip);
- pwmchip_remove(&pc->chip);
+ pwmchip_remove(chip);
clk_unprepare(pc->pwm_clk);
clk_unprepare(pc->cpt_clk);
This prepares the pwm-sti driver to further changes of the pwm core outlined in the commit introducing devm_pwmchip_alloc(). There is no intended semantical change and the driver should behave as before. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-sti.c | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-)