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pwm: dwc: Prepare removing pwm_chip from driver data

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This prepares the driver for further changes that will drop struct
pwm_chip chip from struct dwc_pwm. Use the pwm_chip as driver
data and return value of dwc_pwm_alloc() instead of the dwc_pwm to get
access to the pwm_chip in dwc_pwm_probe() and dwc_pwm_suspend() without
using dwc->chip.

Thanks to Raag Jadav for providing a hunk of this patch that Uwe missed
during creation of this patch.

Link: https://lore.kernel.org/r/008ce5ab84b8e3baa3e81ab6d36dbb0e4be5c319.1707900770.git.u.kleine-koenig@pengutronix.de
Link: https://lore.kernel.org/r/20240219033835.11369-2-raag.jadav@intel.com
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König
2024-02-14 10:31:19 +01:00
parent 452be9421e
commit aaa3cc29a7
3 changed files with 22 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/pwm/pwm-dwc-core.c
View File

@@ -159,21 +159,23 @@ static const struct pwm_ops dwc_pwm_ops = {
.get_state = dwc_pwm_get_state,
};
struct dwc_pwm *dwc_pwm_alloc(struct device *dev)
struct pwm_chip *dwc_pwm_alloc(struct device *dev)
{
struct pwm_chip *chip;
struct dwc_pwm *dwc;
dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
if (!dwc)
return NULL;
return ERR_PTR(-ENOMEM);
chip = &dwc->chip;
dwc->clk_ns = 10;
dwc->chip.dev = dev;
dwc->chip.ops = &dwc_pwm_ops;
dwc->chip.npwm = DWC_TIMERS_TOTAL;
chip->dev = dev;
chip->ops = &dwc_pwm_ops;
chip->npwm = DWC_TIMERS_TOTAL;
dev_set_drvdata(dev, dwc);
return dwc;
dev_set_drvdata(dev, chip);
return chip;
}
EXPORT_SYMBOL_GPL(dwc_pwm_alloc);