Set Pin Control Status

By using the pinctrl_select_state interface, you can configure the pin status of a device.

The following code block provides an example.

        if (pcie->power_state_active) {
                ret = pinctrl_select_state(pcie->pinctrl, pcie->power_state_active);
                if (ret)
                        dev_err(dev, "Cannot set power pin to high\n");
        }

        if (pcie->perst_state_active) {
                ret = pinctrl_select_state(pcie->pinctrl, pcie->perst_state_active);
                if (ret)
                        dev_err(dev, "Cannot set reset pin to low\n");
        }