diff options
Diffstat (limited to 'drivers/pwm/pwm-raspberrypi-poe.c')
| -rw-r--r-- | drivers/pwm/pwm-raspberrypi-poe.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/pwm/pwm-raspberrypi-poe.c b/drivers/pwm/pwm-raspberrypi-poe.c index 1ad814fdec6b..8921e7ea2cea 100644 --- a/drivers/pwm/pwm-raspberrypi-poe.c +++ b/drivers/pwm/pwm-raspberrypi-poe.c @@ -27,7 +27,6 @@ struct raspberrypi_pwm { struct rpi_firmware *firmware; - struct pwm_chip chip; unsigned int duty_cycle; }; @@ -40,7 +39,7 @@ struct raspberrypi_pwm_prop { static inline struct raspberrypi_pwm *raspberrypi_pwm_from_chip(struct pwm_chip *chip) { - return container_of(chip, struct raspberrypi_pwm, chip); + return pwmchip_get_drvdata(chip); } static int raspberrypi_pwm_set_property(struct rpi_firmware *firmware, @@ -122,7 +121,7 @@ static int raspberrypi_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, ret = raspberrypi_pwm_set_property(rpipwm->firmware, RPI_PWM_CUR_DUTY_REG, duty_cycle); if (ret) { - dev_err(chip->dev, "Failed to set duty cycle: %pe\n", + dev_err(pwmchip_parent(chip), "Failed to set duty cycle: %pe\n", ERR_PTR(ret)); return ret; } @@ -142,6 +141,7 @@ static int raspberrypi_pwm_probe(struct platform_device *pdev) struct device_node *firmware_node; struct device *dev = &pdev->dev; struct rpi_firmware *firmware; + struct pwm_chip *chip; struct raspberrypi_pwm *rpipwm; int ret; @@ -157,14 +157,14 @@ static int raspberrypi_pwm_probe(struct platform_device *pdev) return dev_err_probe(dev, -EPROBE_DEFER, "Failed to get firmware handle\n"); - rpipwm = devm_kzalloc(&pdev->dev, sizeof(*rpipwm), GFP_KERNEL); - if (!rpipwm) - return -ENOMEM; + chip = devm_pwmchip_alloc(&pdev->dev, RASPBERRYPI_FIRMWARE_PWM_NUM, + sizeof(*rpipwm)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + rpipwm = raspberrypi_pwm_from_chip(chip); rpipwm->firmware = firmware; - rpipwm->chip.dev = dev; - rpipwm->chip.ops = &raspberrypi_pwm_ops; - rpipwm->chip.npwm = RASPBERRYPI_FIRMWARE_PWM_NUM; + chip->ops = &raspberrypi_pwm_ops; ret = raspberrypi_pwm_get_property(rpipwm->firmware, RPI_PWM_CUR_DUTY_REG, &rpipwm->duty_cycle); @@ -173,7 +173,7 @@ static int raspberrypi_pwm_probe(struct platform_device *pdev) return ret; } - return devm_pwmchip_add(dev, &rpipwm->chip); + return devm_pwmchip_add(dev, chip); } static const struct of_device_id raspberrypi_pwm_of_match[] = { |