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pwm: dwc: Move memory allocation to own function

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In preparation for adding other bus support, move the allocation
of the PWM structure out of the main driver code.

Signed-off-by: Ben Dooks <ben.dooks@sifive.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Ben Dooks 2022-12-23 15:38:14 +00:00 committed by Thierry Reding
parent f7c843d6d7
commit a357d1493f
1 changed files with 17 additions and 7 deletions
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24
drivers/pwm/pwm-dwc.c
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@ -198,13 +198,29 @@ static const struct pwm_ops dwc_pwm_ops = {
.owner = THIS_MODULE,
};
static struct dwc_pwm *dwc_pwm_alloc(struct device *dev)
{
struct dwc_pwm *dwc;
dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
if (!dwc)
return NULL;
dwc->chip.dev = dev;
dwc->chip.ops = &dwc_pwm_ops;
dwc->chip.npwm = DWC_TIMERS_TOTAL;
dev_set_drvdata(dev, dwc);
return dwc;
}
static int dwc_pwm_probe(struct pci_dev *pci, const struct pci_device_id *id)
{
struct device *dev = &pci->dev;
struct dwc_pwm *dwc;
int ret;
dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
dwc = dwc_pwm_alloc(dev);
if (!dwc)
return -ENOMEM;
@ -228,12 +244,6 @@ static int dwc_pwm_probe(struct pci_dev *pci, const struct pci_device_id *id)
return -ENOMEM;
}
pci_set_drvdata(pci, dwc);
dwc->chip.dev = dev;
dwc->chip.ops = &dwc_pwm_ops;
dwc->chip.npwm = DWC_TIMERS_TOTAL;
ret = pwmchip_add(&dwc->chip);
if (ret)
return ret;