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pwm: Fixes for v5.3-rc4 

This contains a single fix for a backlight brightness regression
 introduced in v5.3-rc1.
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Merge tag 'pwm/for-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fix from Thierry Reding:
 "A single fix for a backlight brightness regression introduced in
  this merge window"

* tag 'pwm/for-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: Fallback to the static lookup-list when acpi_pwm_get fails
This commit is contained in:
Linus Torvalds 2019-08-09 09:23:23 -07:00
parent cb42f06c9f 6cf9481b44
commit c808f2ad8f
1 changed files with 5 additions and 2 deletions
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7
drivers/pwm/core.c
View File

@ -882,8 +882,11 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id)
return of_pwm_get(dev, dev->of_node, con_id);
/* then lookup via ACPI */
if (dev && is_acpi_node(dev->fwnode))
return acpi_pwm_get(dev->fwnode);
if (dev && is_acpi_node(dev->fwnode)) {
pwm = acpi_pwm_get(dev->fwnode);
if (!IS_ERR(pwm) || PTR_ERR(pwm) != -ENOENT)
return pwm;
}
/*
* We look up the provider in the static table typically provided by