diff options
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 104dfaa78cb8..d66fe2b4221b 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -831,6 +831,29 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset, return -EINVAL; } +/** + * intel_pin_to_gpio() - Translate from pin number to GPIO offset + * @pctrl: Pinctrl structure + * @pin: pin number + * + * Translate the pin number of pinctrl to GPIO offset + */ +static int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin) +{ + const struct intel_community *community; + const struct intel_padgroup *padgrp; + + community = intel_get_community(pctrl, pin); + if (!community) + return -EINVAL; + + padgrp = intel_community_get_padgroup(community, pin); + if (!padgrp) + return -EINVAL; + + return pin - padgrp->base + padgrp->gpio_base; +} + static int intel_gpio_get(struct gpio_chip *chip, unsigned int offset) { struct intel_pinctrl *pctrl = gpiochip_get_data(chip); @@ -1468,7 +1491,7 @@ static bool intel_pinctrl_should_save(struct intel_pinctrl *pctrl, unsigned int * them alone. */ if (pd->mux_owner || pd->gpio_owner || - gpiochip_line_is_irq(&pctrl->chip, pin)) + gpiochip_line_is_irq(&pctrl->chip, intel_pin_to_gpio(pctrl, pin))) return true; return false; |