@@ -47,7 +47,6 @@ struct atmel_tcb_channel {
};
struct atmel_tcb_pwm_chip {
- struct pwm_chip chip;
spinlock_t lock;
u8 channel;
u8 width;
@@ -63,7 +62,7 @@ static const u8 atmel_tcb_divisors[] = { 2, 8, 32, 128, 0, };
static inline struct atmel_tcb_pwm_chip *to_tcb_chip(struct pwm_chip *chip)
{
- return container_of(chip, struct atmel_tcb_pwm_chip, chip);
+ return pwmchip_priv(chip);
}
static int atmel_tcb_pwm_request(struct pwm_chip *chip,
@@ -386,6 +385,7 @@ static const struct of_device_id atmel_tcb_of_match[] = {
static int atmel_tcb_pwm_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
+ struct pwm_chip *chip;
struct atmel_tcb_pwm_chip *tcbpwm;
const struct atmel_tcb_config *config;
struct device_node *np = pdev->dev.of_node;
@@ -393,9 +393,10 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev)
int err;
int channel;
- tcbpwm = devm_kzalloc(&pdev->dev, sizeof(*tcbpwm), GFP_KERNEL);
- if (tcbpwm == NULL)
- return -ENOMEM;
+ chip = devm_pwmchip_alloc(&pdev->dev, NPWM, sizeof(*tcbpwm));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ tcbpwm = to_tcb_chip(chip);
err = of_property_read_u32(np, "reg", &channel);
if (err < 0) {
@@ -433,9 +434,7 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev)
}
}
- tcbpwm->chip.dev = &pdev->dev;
- tcbpwm->chip.ops = &atmel_tcb_pwm_ops;
- tcbpwm->chip.npwm = NPWM;
+ chip->ops = &atmel_tcb_pwm_ops;
tcbpwm->channel = channel;
tcbpwm->width = config->counter_width;
@@ -445,11 +444,11 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev)
spin_lock_init(&tcbpwm->lock);
- err = pwmchip_add(&tcbpwm->chip);
+ err = pwmchip_add(chip);
if (err < 0)
goto err_disable_clk;
- platform_set_drvdata(pdev, tcbpwm);
+ platform_set_drvdata(pdev, chip);
return 0;
@@ -470,9 +469,10 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev)
static void atmel_tcb_pwm_remove(struct platform_device *pdev)
{
- struct atmel_tcb_pwm_chip *tcbpwm = platform_get_drvdata(pdev);
+ struct pwm_chip *chip = platform_get_drvdata(pdev);
+ struct atmel_tcb_pwm_chip *tcbpwm = to_tcb_chip(chip);
- pwmchip_remove(&tcbpwm->chip);
+ pwmchip_remove(chip);
clk_disable_unprepare(tcbpwm->slow_clk);
clk_put(tcbpwm->gclk);
This prepares the pwm-atmel-tcb 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-atmel-tcb.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-)