On Tuesday 24 September 2013 06:22 PM, Linus Walleij wrote:
On Tue, Sep 24, 2013 at 1:58 PM, Laxman Dewangan <ldewangan@xxxxxxxxxx> wrote:+static int as_pci_to_irq(struct gpio_chip *chip, unsigned offset) +{ + struct as3722_pctrl_info *as_pci = to_as_pci(chip); + + return as3722_irq_get_virq(as_pci->as3722, offset); +} + +static int as_pci_request(struct gpio_chip *chip, unsigned offset) +{ + struct as3722_pctrl_info *as_pci = to_as_pci(chip); + + if (as_pci->gpio_control[offset].io_function) + return -EBUSY; + return 0; +}Why is this not calling pinctrl_request_gpio(as_pci->chip.base + offset) instead of just checking if we happen to be GPIO and failing if we are not? I would implement .free calling pinctrl_free_gpio(gpio) as well. See e.g. pinctrl-abx500.c
Wow, cool, I saw and it is simple, the gpios callback is wrapper over the pincontrol mux APIs.
I also see opportunity to re-factor the request/free/direction_input/direction_output to move to core so that need not to implement locally, the gpio_chip's callback can use directly.
Will post once this driver is accepted. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
