diff options
| author |   Christian Lamparter <chunkeey@gmail.com> | 2018-05-21 22:57:39 +0200 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2018-05-24 10:05:51 +0200 |
| commit | 973c1714de308bb9424f0eb5aaab275d1641a720 (patch) | |
| tree | c152c1e2a1d5753ab1537246abbc68cda8c9792d /drivers/gpio/gpiolib.c | |
| parent | pinctrl: msm: fix gpio-hog related boot issues (diff) | |
| download | linux-dev-973c1714de308bb9424f0eb5aaab275d1641a720.tar.xz linux-dev-973c1714de308bb9424f0eb5aaab275d1641a720.zip | |
gpiolib: discourage gpiochip_add_pin[group]_range for DT pinctrls
This patch adds the stern warning to the kerneldoc text of both
gpiochip_add_pin[group]_range() functions in hope of detering
developers from ever using them in their DeviceTree-supported
pinctrl drivers in the future.
For anyone affected: Please refer to Section 2.1 of
Documentation/devicetree/bindings/gpio/gpio.txt on how to
bind pinctrl and gpio drivers via the "gpio-ranges" property.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 43aeb07343ec..0988fd74caf6 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2077,6 +2077,11 @@ EXPORT_SYMBOL_GPL(gpiochip_generic_config); * @pctldev: the pin controller to map to * @gpio_offset: the start offset in the current gpio_chip number space * @pin_group: name of the pin group inside the pin controller + * + * Calling this function directly from a DeviceTree-supported + * pinctrl driver is DEPRECATED. Please see Section 2.1 of + * Documentation/devicetree/bindings/gpio/gpio.txt on how to + * bind pinctrl and gpio drivers via the "gpio-ranges" property. */ int gpiochip_add_pingroup_range(struct gpio_chip *chip, struct pinctrl_dev *pctldev, @@ -2130,6 +2135,11 @@ EXPORT_SYMBOL_GPL(gpiochip_add_pingroup_range); * * Returns: * 0 on success, or a negative error-code on failure. + * + * Calling this function directly from a DeviceTree-supported + * pinctrl driver is DEPRECATED. Please see Section 2.1 of + * Documentation/devicetree/bindings/gpio/gpio.txt on how to + * bind pinctrl and gpio drivers via the "gpio-ranges" property. */ int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name, unsigned int gpio_offset, unsigned int pin_offset, |